LED lamp bead model specification difference method

Roughly speaking, according to the package is divided into in-line, patch, piranha.

According to power, it is divided into large, medium and small power

High-power white LED(such as CREE's XML-T6) single power has reached 10W, voltage 3.3v current 3A, small power red LED(such as common 5MM in-line) voltage 2v, current 15 ma. If you really can't find the component model, you can infer the operating voltage according to the light color:

Red light 1.8~2.2v

Yellow light 2.0~2.4v

Green light 2.2~2.8v

Blue and white light 2.8~3.5v

The patch package is 0805, 1206 and other small power tubes, and the working current is generally 10 MA, but there are exceptions;

The patch package is 3014, 3528, 3535 and other small power tubes, and the working current is generally 20 to 50 MA, but there are exceptions;

The patch package is 5050, 5060, 5630 and other medium power tubes, and the working current is generally 50 to 150 MA, but there are exceptions;

High-power LED is all patch package, different brands of different companies different series parameters are very different; However, the general operating current of nominal 1W is 350mA

Low-power plug-in LED lamp beads are generally divided into models according to diameter,

3mm 4mm 5mm 8mm 10mm 12mm. Regardless of the diameter, its operating voltage and operating current are the same.

Color: red light yellow light 1.7-2.1V

White Blue warm white Pink Purple light 2.8-3.6V

Green light 2.6-3.4V

LED beads come in a variety of sizes

1, 0.06W, the voltage is 2.5-3.5V, the current is 20mA.

2, 0.5W, the voltage is 2.5-3.77V, the current is 150mA.

3, 1W, the voltage is 2.79-3.99V, the current is 350mA.

4, 3W, the voltage is 3.05-4.47V, the current is 700mA.

5, 5W, the voltage is 3.16-4.88V, the current is 1000mA.

Lamp bead 1W current: 320-350mA, the selection drive is generally selected 300mA current, chip size 30mil, 35mil, 40mil, 45mil;

Lamp bead 3W current: 700mA, drive generally 600mA, chip size 45mil;

1W 3W voltage is between 3.0-3.6V, good 3.2-3.4V;

As for the specific parameters of a single 5W, I am not clear, and the chip is generally more than 50mil. Generally used as lighting LED lamp beads from 0.5w-5w are available;

The operating voltage is around 3-3.2V.

White light LED1 watt lamp bead parameter is, our general design is 3.6-- 4.2V,0.2-- 0.3A. There are still many 15W lamp beads;

You can refer to it. Such as cree mce,cree t6.

Voltage: 3.2-3.6v, current: 300-350ma, luminous flux: 100-120 lumens, color temperature: white 6000-7000K

The method of distinguishing LED lamp beads:

1. Look at the brightness, that is, how much is the brightness when the driving current is 350mA and the voltage is between 3.0-3.6V, the higher the better.

2. Look at the chip brand and size, the brands are NICHIA, CREE, Pry, Xuming, crystal, New century, etc., the more forward the better, the bigger the chip the better.

3. Look at the BIN, that is, the color temperature partition and the voltage fraction BIN, the finer the better.

4. Look at the attenuation, need to do aging test, the smaller the light decay, the better.

5. Look at the actual application, such as: the market has a suitable and cheap lens, aluminum substrate, it is good, the lens, aluminum substrate need to open the mold will be invested larger, 1W high power, current: 350ma, voltage: 2.8-4.0V brightness: 80-130LM color temperature: 3000-12000K.