SMD3528 LED Chips

Ref Price:
$1.03 - 10.30 / pc
Loading Port:
Shanghai
Payment Terms:
L/C,T/T
Min Order Qty:
100 Pcs pc
Supply Capability:
100000 Pcs Per Month pc/month

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Product Description:

 

Feature

LED with white light at the headspace 
High-brightness 
Viewing Angle: 1200
Material of LED Chip: InGaN

3.50mm×2.80mm×1.90mm 
Lead Free

This product conforms to RoHS standard of EU

 

Specification

Parameter

Unit

Min.

 Typical 
Value

 Max.

 Unit

 Conditions

Forward Voltage

Vf

2.8

--

3.4

V

If=20mA

Light Flux

Lv

5

--

7

Lm

If=20mA

Luminous Intensity

Lv

1600

1900

2200

MCD

If=20mA

Color Temperature

CCT

3500

 

7000

K

If=20mA

Viewing Angle for 50% Light Flux

2θ1/2

--

120

--

Deg

If=20mA

Countercurrent

Ir

--

--

10

μA

Vf=5V

 

Application

Applied in Family, office and Supermarket

Lighting products

General application

 

Packaging & Delivery

 

Package:

1 x Box

 

Delivery:

Shipping Service

Estimated Delivery Time

DHL

2-8 business days

FedEx

3-8 business days

TNT

2-10 business days

UPS

1-7 business days

EMS

6-14 business days

ePacket

7-12 business days

China Post Air Mail

7-15 business days

China Post SAL

14-30 business days

By sea

30-40 business days

1. 3-10 business days for Sample Orders; 7-40 business days for Bulk Orders.

2. "Business days" means Monday-Friday, excluding holidays.

3. DHL and UPS cannot ship to military or P.O. boxes address.

4. The Shipping Service above is for reference only, for any other questions, please feel free to contact us. 

 

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Q:SMD LED lamp working voltage?
LED is a light emitting device of low voltage, low current, low power forward current general patch type LED when using (IF) 20MA, (VF) 1.8-2.5V, voltage of red green and blue (VF) voltage is 3.0-3.6V. Different manufacturers also have small differences, so first of all, look at the color,Of course. The multi chip assembly in high voltage chip together, some current: 1 watts, 1 watts and above. A wide variety of varieties, as follows:
Q:What determines the brightness of the patch LED?
The brightness is consistent over a short period of time, that is, only by considering current and voltage consistency.Long term brightness is consistent with the consideration of the spacing and heat dissipation of different circuits. Uneven heat can also affect brightness.
Q:Why is the patch LED blue light dim?
The pressure drop of the blue light is greater than that of the red light and the green light. If the series connection is the same as that of the green light and red light, the current limiting resistor will tend to dim
Q:Patch LED features
The principle of luminescence is that of cold luminescence, not by heating or discharging light, so the component life is about 50~100 times longer than that of tungsten filament bulb, and about one hundred thousand hours.
Q:How does the LED patch lamp differentiate between positive and negative poles?
Because the LED open threshold is about 1.5-1.8V. It is possible that the voltage supplied by the digital multimeter does not activate it. So look at the sign. Patch LED (SMD LED), the green point of negative, relative to the positive.
Q:LED light SMD LED package in what form, trouble you under the guidance of...
The LED chip has bumps and is welded to the PCB board using FLIP CHIP to packaging technology.LED is English light emitting diode (light emitting diode) abbreviation, its basic structure is a electroluminescent semiconductor chip light emitting materials, with silver glue or glue curing to the bracket, connecting a chip and a circuit board and then with silver or gold, then sealed with epoxy resin around, to protect the internal core role finally, the installation shell, so the seismic performance of LED lamp is good. Field of application involves mobile phones, desk lamps, household appliances and other daily household electrical appliances and machinery production.
Q:Welding method and notice of SMT LED
It is best to use a hot-air gun heat transfer high air volume adjustable low moment welding, the specific heat jump to the appropriate place to see what you use what kind of welding wire, welding wire of different because of the different melting point impurities also some differences. The air volume is too high, easy to blow the original
Q:What is the principle used in SMD LED lamp, should pay attention to what the problem?
Pin forming, 1, LED pin molding must be completed before welding, bending angle must be more than 3mm of the gel to bend the stent. Pin over 2 times in the same place can not fold number, pin bent to 90 degrees, and then returned to the original position for 1 times; 2, pin forming must use fixture or by professional personnel to complete the first, pay attention to avoid the epoxy body caused by excessive internal wire fracture; 3, to ensure the distance between pin pin forming consistent with the circuit board; 4, when LED has good welding in the welding process or after, please don't bend light feet, to avoid damage to the lamp.
Q:Patch LED manual welding, how can welding not burn lights?
The welding speed and welding time because certainly give light foot heat, so the speed must be fast, tin wire and tip with better, while heating to tin iron head, avoid heating time is too long.
Q:What is patch SMD-LED?
This really do not know how to answer you, like a sheet of the same type of solder paste used to operate, it can be said that the plug-in is not, it is patch it!

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