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{"title":"4040 Yellow-Green SMD LED with 570-575nm Wavelength, 120\u00b0 Viewing Angle, and","imgUrl":"https:\/\/img.chinax.com\/nimg\/b4\/dc\/833eb2dc76ad6d64e2535c44ac40-200x200-1\/4040_yellow_green_smd_led_with_570_575nm_wavelength_2c_120_c2_b0_viewing_angle_2c_and_2000v_esd_protection.jpg","attrs":{"Supply Ability":"10KK per month","Luminous Intensity":"60-120mcd","Reverse Current":"10\u03bcA","ESD(HBM)":"2000V"}}
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{"title":"IR SMD LED Infrared LED with 850nm and 940nm Wavelengths for Industrial Grade","imgUrl":"https:\/\/img.chinax.com\/nimg\/97\/4d\/b28992e1a040dd30c33222e06794-200x200-1\/ir_smd_led_infrared_led_with_850nm_and_940nm_wavelengths_for_industrial_grade_applications.jpg","attrs":{"Model Number":"SMD IR","Package Material":"Main body: High thermal conductivity epoxy resin\/ceramic; Leads: Tin-plated copper alloy (excellent solderability and oxidation resistance)","Minimum Order Quantity":"3000","Delivery Time":"20-30 working days"}}
Factory Supply WE-SL020 020 White Side View SMD LED Backlight Chip with 120° Wide Viewing Angle and High Brightness White Side Emitting LED Diode for LCD Screen, Keyboard, and Instrument Backlight Applications
Product Overview
The WE-SL020 is a dedicated 020 side-emitting white backlight SMD LED, specifically engineered for thin backlight modules in small LCD screens, membrane keyboards, instrument panels, and wearable devices. It utilizes an InGaN white chip with high luminous efficiency and features a built-in professional light guide structure that delivers uniform, soft white side lighting without glare or dark spots. Standard gold-plated terminals with clear polarity markings ensure full compatibility with automated SMT mounting processes.
Core Advantages
Professional 020 side backlight dedicated package with slim narrow outline, perfectly fitting ultra-thin backlight light guide slot designs
InGaN white chip delivering ultra-high brightness up to 1400mcd with high luminous efficiency and energy savings
120° wide viewing angle with uniform side light output and consistent color coordinates (X0.275/Y0.255) for pure white light without color cast
Stable forward voltage (Typ 3.4V / Max 4.2V @20mA) with low power consumption, compatible with small MCU and lithium battery control circuits
Gold-plated solder pads with clear positive/negative polarity identification, supporting automatic SMT pick-and-place for high mass production efficiency
Dimension tolerance ±0.1mm with standardized pad layout for convenient backlight PCB design
Wide operating temperature range (-20℃ to +70℃) with anti-vibration and anti-impact properties, ensuring service life ≥50,000 hours
Customizable color temperature, luminous intensity, lens structure, and anti-static vacuum packaging options available
Electro-Optical Characteristics
Test Condition: IF=20mA, Ta=25℃
Part Number
Lighting Color
Chip Material
VF Typ(V)
VF Max(V)
Color Coordinate X
Color Coordinate Y
View Angle
Iv Typ Luminous Intensity(mcd)
WE-SL020DBW
Pure White
InGaN
3.4
4.2
0.275
0.255
120°
1400
Mechanical Dimensions & General Specifications
Model
WE-SL020 020 Side View White Backlight SMD LED
Package Type
Side Emitting Backlight Special Package
Overall Tolerance
±0.1 mm
Solder Terminal
Gold Plated Dual Pads
Polarity Mark
Clear +/- polarity on package
Rated Lifespan
≥50,000 Hours
Operating Temperature Range
-20℃ to +70℃
Application Scope
Display Backlight: Small segment LCD screen backlight, digital watch display backlight, wearable device screen backlight
Keyboard & Membrane Switch: Thin membrane keyboard backlight, remote control key backlight, industrial control button backlight
Instrument Equipment: Mini instrument panel backlight, portable tester display backlight, medical small equipment backlight
Consumer Electronics: Small home appliance indicator backlight, charging equipment screen backlight, toy display backlight
Factory Advantages
100% full aging lighting inspection before shipment with strict sorting of brightness and color coordinates to eliminate color differences
Flexible MOQ with acceptance of both small sample trial orders and mass bulk wholesale orders
Professional optical engineering team providing free backlight matching and light guide scheme technical guidance
All LED beads comply with RoHS and REACH standards, meeting global consumer electronics export requirements
Stable daily packaging capacity with guaranteed short lead times for long-term cooperative backlight module manufacturers
