The 470 ohm Resistor color code for 4-band is as shown in the image below:
[Yellow, Violet, Brown, Gold]
Band
Color
Value
1st yellow
4
2nd violet
7
3rd brown
10
4th gold
5%
470±5% Ω
470 ohm resistor color code for 4-band is calculated as:
(1st digit) = Yellow = 4
(2nd digit) = Violet = 7
(multiplier) = Brown = 1 = 10^1 = 10
(tolerance) = Gold= ±5%
∴ 47×10±5% –> 470 ohms –> 470 Ω ∴ the real value of 470 Ω resistor is between 446.5 Ω to 493.5 Ω
Description: From the resistor code chart we found the color code of resistor with respect to the decimal value of the respective band counted from left to right. So for 470-ohm resistor, 1st digit is ‘ 4 ‘, ∴ look for color in a chart with value 4, then it’s your 1st color(say yellow). The next 2nd digit is ‘ 7 ‘, ∴ look for color in a chart with value 7, then it’s your 2nd color (say violet). Next 3rd digit ‘0’ (but value 10^1 = 10) is multiplier ‘ 1 ‘, ∴ look for color in a chart with value 1, then it’s your 3rd color band (say brown).
The last bands in 4 or 5-bands resistors are the indicator of the tolerance value of the resistor. Here, it is Gold indicates a 5% tolerance value. For Silver, its values is 10%, and Brown indicates 1% tolerance. If the 4th band is absent it is considered in 20% tolerance value.
SMD capacitors most extensively used for capacitor requirements on the PCB which are perfect for large scale manufacturing. SMD capacitor one of the derivatives of SMT (surface mount technology) having small and easy to place components which enhances the manufacturing speed.
Ceramic, tantalum, electrolytic capacitors are few of the available options when it comes to SMD capacitor. ceramic capacitors are easy and cost-effective to manufacture and thus most widely used.
If you want to go through the detail of the capacitor and their types along with its working then click here!
What is an SMD capacitor?
SMD capacitor is nothing but a capacitor with compact size and no long lead. It is developed in such a way that it offers an advantage for mass production of electronic devices and equipment, along with some technical advantage in the operation of high-frequency devices.
Advantage of SMD capacitor:
SMD capacitor has no leads or very short lead, the inductive effect of leads are avoided ( its importance comes into the picture when we are working on high-frequency circuits and radio circuits ‘RF range’). Eg. while designing a tank circuit using LC, if the leads of the capacitor are not kept short then it will oscillate at different frequencies than that we have designed.
The size of the surface mount capacitor is smaller than the traditional capacitor space and the device can be confined in a smaller area, useful in portable devices.
An increase in the manufacturing speed, therefore, reduction in cost is possible.
Due to the standard size, it is much easier to handle and place on PCB using the robotic assembly process.
Disadvantage of SMD capacitor:
Its advantages have an upper hand than that of disadvantages. Why we are saying its disadvantages are very few and can be neglected.
One disadvantage is its size when it comes to repairing. Suppose you’re considering to replace it then it is a little bit arduous work.
Lower heat capacity of a smaller capacitor can damage it if proper cooling ventilation is not given. Surface mount components lower operating temperatures than the traditional one.
Common capacitor value with codes in a chart:
Common capacitor value for SMD capacitor is almost same as ceramic and electrolytic capacitors. Below table have all the common capacitor values listed that are useful for you.
For code “104″ The two figures 10 indicate the significant figures and the 4 indicates the multiplier , i.e. 10^4 = 10000.
Therefore, the value comes out to be 100000 pf = 0.1 uf
There is a certain range of capacitors which is very commonly used with PCB and in the circuits. The common capacitor code is given below so that it is easier to remind it whenever required while studying or designing the circuits:
Capacitor (104)
Capacitor (108)
100 nF
0.1 pF
Capacitor (154)
Capacitor (158)
150 nF
0.15 pF
Capacitor (224)
Capacitor (228)
220 nF
0.22 pF
Capacitor (334)
Capacitor (338)
330 nF
0.33 pF
Capacitor (474)
Capacitor (478)
470 nF
0.47 pF
Capacitor (684)
Capacitor (688)
680 nF
0.68 pF
Capacitor (105)
Capacitor (109)
1.0 μF
1.0 pF
Capacitor (155)
Capacitor (159)
1.5 μF
1.5 pF
Capacitor (479)
Capacitor (229)
4.7 pF
2.2 pF
Capacitor (689)
Capacitor (339)
6.8 pF
3.3 pF
Capacitor (100)
Capacitor (103)
10 pF
10 nF
Capacitor (150)
Capacitor (153)
15 pF
15 nF
Capacitor (220)
Capacitor (223)
22 pF
22 nF
Capacitor (330)
Capacitor (333)
33 pF
33 nF
Capacitor (470)
Capacitor (473)
47 pF
47 nF
Capacitor (680)
Capacitor (683)
68 pF
68 nF
Capacitor (101)
Capacitor (681)
100 pF
680 pF
Capacitor (151)
Capacitor (102)
150 pF
1000 pF [1.0 nF]
Capacitor (221)
Capacitor (152)
220 pF
1500 pF [1.5 nF]
Capacitor (331)
Capacitor (222)
330 pF
2200 pF [2.2 nF]
Capacitor (471)
Capacitor (682)
470 pF
6800 pF [6.8 nF]
Capacitor (332)
Capacitor (472)
3300 pF [3.3 nF]
4700 pF [4.7 nF]
Capacitor (225)
Capacitor (335)
2.2 μF [2200 nF]
3.3 μF [3300 nF]
Capacitor (475)
Capacitor (685)
4.7 μF [4700 nF]
6.8 μF [6800 nF]
SMD capacitor size:
SMD capacitor’s size certainly depends on their types, their size a different for electrolyte capacitor and ceramic capacitor. Below are some SMD capacitor size standards for different types of SMD capacitor:
Size Code (mm)
Size (in mm)
Size Code (inches)
Size (in inches)
1005
1.0 × 0.5
0402
0.04 × 0.02
1608
1.6 × 0.8
0603
0.06 × 0.03
2012
2.0 × 1.2
0805
0.08 × 0.05
3216
3.2 × 1.6
1206
0.126 × 0.063
3225
3.2 × 2.5
1210
0.12 × 0.10
4520
4.5 × 2.0
1808
0.18 × 0.08
4532
4.5 × 3.2
1812
1.8 × 0.12
5750
5.7 × 5.0
2220
0.22 × 0.20
Are SMD capacitor polarized?
YES, SMD capacitors are polarized but not all SMD capacitors are polarized. The electrolytic SMD capacitor compulsorily comes with the polarity and has its dedicated applications.
They are normally yellow and black color with markings on it.
How to identify SMD capacitor polarity?
The polarity of surface mount capacitors is marked by a white or black line at one of the ends of the device. Note that on a rounded surface mount capacitor the small black corner indicates the negative side. This line/bar indicates the positive terminal of the capacitors as shown in the figure above.
How do you know the capacitor is nonpolar?
If no indication like a bar or colored dash is present on the capacitor then it is a nonpolar capacitor. This nonpolar ceramic capacitor generally brown, yellowish-brown or grey in color.
SMD resistors are generally black in color.
How to test a SMD capacitor?
If your surface mount capacitor does not have a code written on it then follow the following steps:
Step1– Remove your capacitor from the PCB ( it is not possible to test the component without removing it from the board)
Step2-Put your multimeter to the Mega-ohm range. And connect the positive of multimeter to the positive of a capacitor and negative to the negative of a capacitor (if it is polarised capacitor). If your capacitor is non-polarized then no issue of polarity.
Step3 – Now observe the value Of the component,
If it is showing few Megaohms and decreasing slowly then your capacitor is faulty.
If it is showing few Megaohms, increasing slowly and becomes steady (or not showing any value due to out of range), then the capacitor is good. There is no need to replace it.
Insertion loss and return loss are widely used terms in the field of microwave technologies. Insertion loss and return loss plays an important role in designing and development of high-frequency devices such as filters, power dividers, amplifier, etc.
These are quite similar concepts, it is an advanced form of the basic electronics we have learned in network theorems.
What is an insertion loss?
Technically, when some system or circuit is inserted between a source and a load, some of the signal power from the source is dissipated through the circuit components due to their resistive nature that results in losses.Therefore, not all the transmitted signal power is transferred to the load when the load is connected to the source. The losses thus occurred is called Insertion Loss.
It is a very important factor while designing and implementing microwave circuits. It is generally expressed in (dB) decibels.
If the power transmitted to the load is PT and the incident power received by the load is PR, then the insertion loss is given by:
What is a return loss?
Practical circuit realization always suffers a certain level of mismatch between the impedance of the signal source and a load of a system (this load can be a transmission, line antenna, system filters or any device system).Some fraction of signal power inserted is reflected back due to mismatch between two systems, this fraction of power loss is called return loss.
Less power reflection is desirable thus high return loss (RL) is considered good according to the formula:
where RL is the return-loss in dB, Pi is the incident power to the system and Pr is the reflected power from the system.
Figure showing insertion loss offered by a bandpass filter, the required signal at another end will have some power loss:
What causes insertion loss?
Insertion loss causes due to two factors namely ohmic loss, dielectric leakage and the return loss is caused due to mismatched systems.
The first-factor ohmic loss is an unavoidable loss as it is a property of conductor used for connecting the components and the resistor used. Thus, to reduce ohmic losses the components are placed very closely integrated into a small confined area. VLSI and ULSI technology are used for making an integrated circuit that offers high efficiencies.
In the case of a capacitor, there is some leakage current through it can be reduced but cannot be omitted ideally. This is because of the dielectric in it, thus resulting in power loss.
Miss-matched in the system results in insertion loss and return loss. Ideally reflected power must be equal to zero but, in a practical sense, it has some value that can be up to 10 dB or more even after minimizing these losses.
As the frequency increases insertion loss and return loss are more relevant in the systems due to the characteristics of microwave frequencies. The voltage standing wave ratio (VSWR) and reflection coefficient (Γ) are an important factor involved in return loss.
Its basic version we have already learned in the Network theorems. The Maximum Power Transfer Theorem is significantly applicable in microwave frequencies, as the signal power one of the most considered and important factors in RF circuits while designing and implementing filters, amplifiers & power dividers.
The MPT states that the maximum power is transferred from one circuit to another circuit (or one system to another system) when the impedance of the source is equal to the impedance of the Load.
For maximum power transfer, Xs = Xl
This can be seen as,
When the source impedance is matched with load impedance then ideally return loss must be equal to zero. But practically, it has some value that can be up to 10 dB or more even if the system is matched.
Importance:
Suppose that you have to transmit a signal through an RF remote control device operating on a small battery. The battery capacity of the remote control is generally very less as remote control must be portable and lite in weight, also long operating hours are expected.
We need to increase the efficiency of the transmitter used in remote control ultimately do we need to reduce the return loss and insertion loss in the system used in the circuit.Also, the power generated by the transmitter must be efficiently transmitted by the antenna and therefore requires proper impedance matching of output ports of source and the antenna.
It has its applications in the RF sector like Radars and satellite phones.
Relation with the scattering parameter:
Below image showing insertion loss and return loss for a 90MHz highpass filter matched at 50 Ohms.:
Insertion loss and return loss are linked with the scattering perimeter when the source and the load of the system is matched to the same reference impedance (say 50 Ohms).
S parameters are is the modern way of analyzing two-port networks. It is very helpful in in in optimizing the circuit to its best. It is capable of determining even smaller return loss and insertion loss in the form of s-parameters namely S11, S22, S12, S21:
S12 = transmission coefficient (power gain in dB of the system in a forward direction)
S21 = transmission coefficient (power gain in dB of the system in reverse direction)
S11 = reflection coefficient (related to return loss in dB at port 1)
S22 = reflection coefficient (related to return loss in dB at port 2)
For perfectly matched and ideal n/w:
→ S11 = S22 = 0
-→ S12 = minimum
–→ S21 = depends on the nature of the circuit (≥0)
COB light and SMD LED are the two major sources of light nowadays. These both device produce high-quality light and have high life expectancy along with the best efficiency till this date.
As we know that light-emitting diode is a newer technology with the advantage of high output corresponding to its input power and of very long life (almost 10 times). Technology is flawless as compared to the older traditional lighting such as fluorescent light which player inefficient and larger in size.
COB LEDs are relatively newer in the LED market and have many advantages over the traditional options. It has a lot of names like flood lamps, downlights, focus lamp, etc.
What is COB light?
LED chips mounted on a single board to act as a source of light is known as COB light. It is also termed as COB LEDs. The COB light’s full form is Chip On Board lights.
It is a chip made up of small diode combined in parallel and series to form a chip that is capable of giving a high concentration of light called a high luminous intensity chip. Look at the image showing multiple small LED diodes on a single large chip.
On the contrary, SMD LEDs are the device having few diodes in it and having a lower output capacity of light.
COB is a modified form of SMD LED. SMD led is a surface mount LED diode and it is capacity wise just a smaller version of COB.
You can say that cob is a collection of lots of LED diodes integrated into one place.(above image)
What is the need of cob lights?
If we have SMD-LED then why we need COB led? This might be the question arising in your mind. The main reason is output Lux and power handling capacity of the device structure.
Some cob light comes with the wide-angle projection that is used to divert light all over the area, which causes an increase in the efficiency.
On the contrary, SMD LED when mounted on a PCB requires an external diffuser which causes the loss of energy when a light beam is passed through who this diffuser cover.
It is manufactured such that the handling and installing become easier and comes with the large beads/ pin.
Suppose we required ~5000 lumens then, we can use a single 10W cob LED instead of using 15 numbers of 1W SMD.
Advantage of cob LED:
High lumens (more than 1.5× SMD) from 150 lm/watt @350mA to 250 lm/watt @ 20mA.
High light concentration due to multi-diode integration.
Compact in size due to the fact that the light-emitting area is reduced. Which as a result, greatly increases lumen per square centimeter/ inches.
The lower overall operating temperature of the whole assembly due to ease of installation in an external heat sink. Lifespan and reliability are improved when maintained at a certain temperature, which eventually means money savings for you.
Large focusing area, as it can cover a large area with a single chip.
The decrease in the loss of light due to the use of a clear lens. Enhances clarity and contributes to increased efficiency.
Application:
The possibilities for COB LEDs made it a wide range application device from household uses to industrial utilities, some of them are:
The wide-angle beam made them useful in LED lighting fixtures for installation in living rooms, and large halls.
High-bay lighting, street lights, and downlights.
In a large stadium, playground, gardens which require high lumens at night time.
Disadvantage:
Reduced repairability of lighting fixtures that uses cob chip. This is due to the fact that if any of the single diodes in a whole COB is damaged due to some technical failure then, the complete COB led has to be replaced with the newer one.
But in the case of SMD LED, if any of them undergo a failure then it is easy to replace and get it back to work with less cost.
The requirement of the properly designed heat sink. If the heat sink is not properly installed then due to overheating the diode will be blown. A large amount of heat is generated due to highly concentrated light waves emanating from a small area.
The well-engineered external power supply as it needs constant current and voltage because any spike in supply can damage the diodes.
Costlier than SMD chips.
Difference between COB LED and SMD LED:
Table showing COB light vs SMD lights:
COB LED
SMD LED
Output lumen
(lm/watt)
150 lm/watt @350mA to 250 lm/watt @ 20mA
~100 lm/ watt @300mA
Efficiency
Higher
Lower
Mounting difficulty
Easy
Moderate to Hard
Cost
Expensive
Moderately lower than Cob led's
External power Supply
External power supply with high current capability is must
Lower current capability is required
Heat sink
Larger heat sink with cooling fan is must due to heavy heat dissipation
Smaller heat sink will work.
What is an LED driver?
The LED driver is nothing but an external power supply used for powering an LED. This is a fully regulated DC power supply unlike household AC power supply 120V/ 230V.
The external power supply which drives LED are termed as LED drivers. They convert the high alternating voltage to lower DC voltage so as to power LEDs.
100 ohm resistor color code can be found using the resistor color chart, below image showing a resistor color code of 100R 4-band resistor:
[Brown, Black, Brown, Gold]
The color code for the four bands 100 Ohm resistor is brown, black, brown, gold.
Band
Color
Value
Brown
1 (1st digit)
Black
0 (2nd digit)
Brown
10 multiplier
Gold
5% tolerance
4-band 100 ohm resistor color code is calculated as:
1st-band= Brown= 1 (1st digit)
2nd-band= Black= 0 (2nd digit)
3rd-band= Brown= 1 (multiplier) = 10^1 = 10
4th-band= Gold= ±5% (tolerance)
Thus, 100×1±5% –> 100 ohms –> 100 Ω
The tolerance will be –> 5% of 100 –>5 Ω
Theoretically, the value of 100 Ω resistor is between 95 Ω to 105 Ω
Description: From the chart below we got the color code of resistor with respect to the decimal value of the respective band taken from left to right. So for 100-ohm resistor, 1st digit is ‘ 1 ‘, ∴ look for color in chart having value 1, then it’s your 1st color(say brown). The next 2nd digit is ‘ 0 ‘, ∴ look for color in chart having value 0, then it’s your 2nd color (say black). Next 3rd digit ‘0’ (but value 10^1 = 10) is multiplier ‘ 1 ‘, ∴ look for color in chart having value 1, then it’s your 3rd color (say brown).
The last band in 4 and 5-bands resistors is the indicator of tolerance value of the resistor.
In this case, it is Gold which indicates a 5% tolerance value.
For Silver, it is 10%, and 2% tolerance is indicated by Brown. If the 4th band is absent it should be considered as 20% tolerance.
Image showing 100 ohm resistor color code of 5-band resistor:
[Brown, Black, Black, Black, Gold]
The 100R 5-band resistor color code is brown, black, black, black, gold and it is found as:
1st-band = Brown= 1 (1st-digit)
2nd-band = Black= 0 (2nd-digit)
3rd-band = Black = 0 (3rd-digit)
4th-band = Black = 0 (multiplier) = 10^0 = 1
5th-band = Gold= ±5% (tolerance)
Description:
So for 100-ohm 5 band resistance,
The 1st digit is ‘ 1 ‘, ∴ look for color in chart having value 1, then it’s your 1st color(say brown).
The next 2nd digit is ‘ 0 ‘, ∴ look for color in chart having value 0, then it is 2nd band color (say black).
3rd digit is ‘ 0 ‘, ∴ look for color in chart having value 0, then it is 3rd band color (say black).
Now, 4th digit is multiplier value (10^0 = 1) which is zero, therefore, 4th band will be of black color.
Everything will be the same from the value to the power rating for 5-band resistor and 4 band resistance except the bands painted on them.
Let’s Brush-up resistor color code table and method to find value:
Resistors are widely used and available in a variety of values and power ratings. The lower power resistors typically seen in circuits are marked with color-coded bands painted that give the resistance and the tolerance (i.e., the range of resistance value) as shown in the above figures.
As pictured in the above 100-ohm resistor, the bands are grouped toward one end of the resistor.
The color band nearest to one of the end is considered as the 1st digit of the value.
The next band is the second digit, the third band is a third digit (in the case of 5 band resistor), the next band is the multiplier, and the last band is for determining tolerance value.The values associated with the various band colors are shown:
For example, a resistor code having colors yellow, violet, orange, and gold corresponds to a value of 47 × 1000 ± 5% Ohms.
Size of resistors:
Resistors also come in variable forms, which means its value can be varied by some means. If the variable resistor has two pins, it is called a rheostat. The more common and versatile type is with three pins called potentiometer or simply a “pot”.
You must select the proper power rating for a resistor whenever required. The power rating of common resistors is indicated by its size. Typical values in watts are 1/8, 1/4, 1/2, 1, 2, 5 watts and so on.
1M ohm resistor color code with 5% tolerance is as shown:
1M ohm resistor color code:
Brown, Black, Green, Gold
Band
Color
Value
1st Brown
1
2nd Black
0
3rd Green
100000
4th Gold
5%}
1st digit 1
2nd digit 0
3rd is multiplier:
10 to power 4
1 M Ohms
tolerance
5%
1 Megaohm is calculated as:
1st band= Brown = 1(1st digit)
2nd band= Black = 0(2nd digit)
3rd band= Green = 5(multiplier)
4th band= Gold= ±5% (tolerance)
∴ 10×1000000±5% ==> 1000000Ω ==> 1MΩ
Tolerance value ==> 5% of 1M ==>5000Ω
Final assumed value of 1MΩ resistor is between 995 kΩ to 1005 kΩ
Other methods:
Remove the resistor from the Circuit PCB then test it with a digital multimeter in resistor mode and note down its value. It needs to be separated from board so as to avoid the equivalent resistance from parallel resistors in the circuit.
So, 1 megaohm resistor color code is brown-black-green-gold
Scroll down to jump to SMD LED 5050 and specification in detail.
SMD LED is a Modern era source of light similar to those that is an incandescent lamp and CLF lamps/bulbs. The only difference is shape, size, color, o/p lumens, and power consumption. So let’s discuss more in detail below in this article.
What is SMD LED?
SMD LED stands for Surface Mount Device Light Emitting Diode.
(smd + led)
It is a light-emitting diode in chip shape.
Surface mount devices are the device that can be mounted on PCB’s easily so the SMD led is the LED which can be mounted on PCB or on light strips directly.
SMD are the applications of Surface Mount Technology (SMT), in this Technology electronic components are made such that they can be placed on printed circuit board or any led strip. This makes the device compact and lite in weight. It also called Chip On Board (COB).
Advantage of SMD led over led with pins:
Compact in size
Square or rectangular in shape
Short leads
More efficient
More luminous flux in small dimensions.
Customizable output power
What is the difference between SMD LED and LED?
The SMD led is small-compact & chip diode while LED, in general, is light-emitting diode with long leads. The only thing that makes SMD chip exceptional that, we can place multiple color light diodes in one chip. Thus, we can achieve any resultant color we want (by color mixing theory).
What is better SMD or LED?
Both are of the Same importance. As both SMD and LED are widely used in various engineering fields depending on the requirement and application.
For example, LED is most commonly used in device indicators, and smd led have is general applications in monitor displays, household LAMP & and many more.
Nowadays smd LED is replacing LEDs with pins in every application, this is quit faster and expected to replace up to 80{42041a7992ac3be9e9e29c856254fb498d8c7935d7cf8512da6802e8688e734a} in applications.
Chip led is costlier than normal led due to its technology and other factors.
Numbers and Chips: What does 5630, 3528 and LED 5050 mean?
There is a Standard Size for chip Diodes only. The physical dimension of the smd LED can be determined by seeing at the Number codes on these Chips.
Other than this the output lumens, the power consumption, efficiency, color, number of leads, etc., can learn by referring to the manufacturer’s datasheet provided with that specific chip diode.
The Led-light chips can have different electrical performances despite having the same code number.
For instance, LED 5730 may come with 1W or 3W wattage ratings. Also, the operating voltage can be different from 2.8 volts to 3.4 volts. It anything depending on the technology.
Polarity is generally printed on the chip as + & –
Different technologies provide different luminous flux also consume more power.
Below is the list of some luminous flux (approx values) of different chips per watts:
i) 2835/ 3528 -> 70 lm / W,
ii) SMD LED 5050 -> 80 lm / W,
iii) 5630 -> 80 lm / W,
iv) 5730-05 -> 80 lm / W,
v) 5730-1 -> 100 lm / W
The general formula for size of SMD chips:
BDLN = Breadth (mm) × Length (mm)
= B.D (mm) × L.N (mm)
where, mm is milimeters
eg. the diode chip code3014 will be of dimension 3.0 mm × 1.4 mm.
eg. the diode chip code5050 will be of dimension 5.0 mm × 5.0 mm.
LED 3528 vs 5050 vs 5630 coding revelead?
Below are the in detail information of led 3528 vs 5050 vs 5630.
What is SMD LED 5050?
Specifications: minimum 3 diode per chip
Dimension /size: 5.0mm x 5.0mm
(Power consumption Wattage: : 0.21 W (3 diode 0.7mW)
Rated current, mA : 60
Nominal luminous flux Lumen: 15 — 18
Voltage: 3.4 – 3.4 volts
Color: Neutral white and RGB
Operating temperature, degrees: normal 80, critical max 110
What is SMD LED 5730? (5730-05, 0.5W varient)
Specifications: min 8 diode (0.6-0.7mW per diode all)
Nominal luminous flux Lumen:~55
Dimension /size: 5.7mm x 3.0mm
Power consumption: Wattage: 0.5W
Temp: -40 To +80
Rated current: (in mA) 150
Voltage: 3.3 – 3.4 volts
Color: multi color including white
SMD LED 5730-1 , 1W varient
Specifications:
Nominal luminous flux Lumen:~100
Dimension/size: 5.7mm x 3.0mm
Power consumption: Wattage: 1W
Temp: -40 To +80
Rated current: 300 mA
Voltage:3.3-3.4 V
Color: white and multi color
SMD LED 5730- 2b3c/ 2b5c/ 2b7c/ 2b10c are the 3 watt, 5 watt, 7 watt, 10 watt varient respectively.
What is smd LED 5630?
Specification:
Nominal luminous flux Lumen: ~40
Dimension /size: 5.6mm x 3.0mm
Rated current, mA 150
Power consumption: Wattage: 0.5W
Voltage: 3.3V – 3.4V
Color: all
What is smd LED 2835 / 3528?
specification: min 1 diode
Nominal luminous flux Lumen: 5 (min)
Dimension /size: 2.8mm x 3.5mm
Power consumption Wattage: ~ 0.06-0.20 W
Rated current, mA 20
Voltage: 2.8 – 3.4 V
Color: white and RGB
Which is the brightest SMD LED?
The 20000 lumens 200Watts (98-106 lm/w) COB is available in the market. Instead, you can use multiple low power chips if you don’t get it.
The brightness of the LED chip depends on the number of diodes (light-emitting diodes) used in it. Thus More number of diode more the brightness of the SMD. Currently, the brightest SMD LED available in the market is in the series of led 5050, 5730.
You need to refer the specification of the respective LED with its number, as these numbers are only the physical dimensions. Only length and breadth can be concluded with these numbers and nothing else.
Application of these light chips:
In tube lights and bulbs for a streetlight, home appliance and night limps, etc.
For automobile head-light, spotlights.
Moving message display in advertising.
Televisions and computer screens.
Difference between LED 5050 Vs 5730 VS 2835:
LED Chip->
5050
2835
5730
Dimension
(size)
5.0mm x 5.0mm
2.8mm x 3.5mm
5.7mm x 3.0mm
Min. power
0.21 W
0.06 W
0.5 W
Approx. current,
60 mA
20 mA
100 mA
Lumen
15-18
5
55
Disclaimer: Please check the datasheet provided by the respective supplier when you are working on some Projects and research.
If you are searching for the value of SMD resistor code 151 value then take a look at the image.
Surface-mount resistors, in general, have 3 types of code marks on it.
3-digit-SMD resistor coding system.
4-digit-SMD resistors coding sys,
EIA96-SMD resistor coding sys.
A surface mount device with 151 code shown below with code:
The formulae to calculate the value of SMD resistor code of 3-digit,
Lets the digit on smd be XYZ then,
The left 2 digits in the code showing the significant digits, and the third at the right side is a multiplier digit. This system is same as the resistor color code used in cylindrical carbon type large size. Here, simple decimal numbers are used in lieu of colors.
The value of SMD resistor code 151 is 150 ohms. Check why?
For calculating smd resistor code 151,
Here, X = 1 (1st digit in the code)
Y = 5 (2nd digit)
Z = 1 (3rd multiplier digit)
151 → 15 × 101 Ω
→ 15 × 10 Ω
→ 150 Ω
So, it is a 150 Ω resistor code 151 smd resistor. By scanning these three-digit code you can not infer the power ratings of a resistor so you have to refer the datasheet by the part supplier. The surface mount device size depends primarily on the specified power ratings.
500 ohm resistor color code is not available because the 500 ohm resistor is anonstandard value of resistor:
You do not need to worry about it, just use 510 ohm resistor instead. Because the nearest standard value(to the 500-ohm resistor) is 510 Ohm.
The error percentis only2%, therefore, you can substitute 500 ohm with 510 ohm resistor and circuit performance will nearly remain same.
The alternative method is to connect two 1000 ohm resistor in parallel ie., 1 kΩ || 1 kΩ = 500 Ω
You have to make sure that the resistor you use while using any type of combination should be a precision resistors or it can of 5% tolerance level.
510 ohm instead of 500 Ohm Resistor color code:
{Green, Brown , Brown, Gold]
Band
Color
Value
1st Green
5
2nd Brown
1
3rd Brown
10
4th Gold
5%
1st digit 5
2nd digit 1
3rd multiplier 10
510 Ohms
tolerance
+- 5%
It is calculated as:
1st band= Green= 5(1st digit)
2nd band= Brown= 1(2nd digit)
3rd band= Brown= 10(multiplier)
4th band= Gold= ±5% (tolerance)
Therefore, 51×10±5% ==> 510Ω ==> 0.51kΩ
And tolerance considered as ==> 5% of 510 ==>22.5 Ω
Final practical value of 510Ω resistor lies between 487.5 to 532.5 Ω
With these above two methods, you can get 500 Ohm Resistor replacement for your circuit.
{Bonus tip: You can order for customized resistors which can have nonstandard values, for manufacturing but in large scale, few manufacturing companies do so. This means that you can buy 500 ohm resistor though some customized component seller}
If you are looking for the value of SMD resistor code 104 in ohms then you can check image using with code shown below.
The value of SMD resistor code 104 is 100k ohms. Check why?
A surface mount device with 104 code shown below with code:
Lets the digits on smd resistor be XYZ then, the formula to calculate the value of smd resistor code of 3-digit,
The first 2-digit in this code shows the significant digits, and the third one at the right most end is a multiplier digit. This system is same to the resistors colour codes used in cylindrical carbon resistors of bigger size. Here, simply decimal numbers system are used instead of colors.
For calculating smd resistor code 104,
Here, X = 1 (1st digit in the code)
Y = 0 (2nd digit)
Z = 4 (3rd multiplier digit)
104 → 10 × 104 Ω
→ 10 × 10000Ω
→ 100 kΩ
So, it is a 100 kΩ resistor code 104 smd resistor. Checking this three-digit code you can not infer the power ratings (in watts) of a resistor so you have to check the datasheets provided by the part manufacturer/ supplier. The SMD device size depends wholely on the specified power ratings.
SMD resistors, in general, have 3/4 digit code on it. There is 3 coding system for smd resistance:
These both device produce high-quality light and have high life expectancy along with the best efficiency till this date.
You do not need to worry about it, just use 510 ohm resistor instead. Because the nearest standard value (to the 500-ohm resistor) is 510 Ohm. 
