2835 Dome Narrow Beam SMD LED 15° 30° Red 620nm IR730 850 940nm For Automotive Indicator Traffic Warning Light Facial Beauty Mask IR Detector

Name: 2835 Dome Narrow Beam SMD LED 15° 30° Red 620nm IR730 850 940nm For Automotive Indicator Traffic Warning Light Facial Beauty Mask IR Detector
Brand: Nanjing Weishi Bo Electronics Co., Ltd
SKU: 2835RIR12SL10-T14A-620-860
Price: 0.05 USD
Availability: InStock

quality 2835 Dome Narrow Beam SMD LED 15° 30° Red 620nm IR730 850 940nm For Automotive Indicator Traffic Warning Light Facial Beauty Mask IR Detector factory

Product Specification

Place of Origin: CHINA

Brand Name: Weishibo

Certification: ROHS/SG/IMQ

Model Number: 2835RIR12SL10-T14A-620-860

Minimum Order Quantity: 3000

Price: 0.05-0.08US dollars

Payment Terms: L/C,D/A,D/P

Supply Ability: 10KK per month

Product Details

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2835 smd led

2835 infrared led smd

620nm smd led

Name: 2835 Dome Lens 940nm IR SMD LED (30° Narrow Beam)

Package Dimension: 3.5×2.8×2.45mm

Luminous Flux: 1-13（lm）

Rated Current: 20mA

Forward Voltage: 1.3-1.5(V)

Wavelength: 940nm

Operating Temperature: -30℃ ~ +70℃

Reverse Voltage: 5（V）

Beam Angle: 120（°）

Bracket Material: High Reflectivity White PBT Plastic

Rated Power: 0.2W Per Single Chip

Chip Layout: Two Separate Chips With Independent Positive And Negative Terminals

Product Description

2835 Dome Narrow Beam SMD LED for Automotive, Traffic Light, Beauty Mask & IR Detector

1. Product Overview

This narrow-beam dome-lens 2835 SMD LED is a compact surface-mount optoelectronic component with overall physical dimension of 3.5(L)×2.8(W)×2.45(H) mm, adopting precision hemispherical convex silicone dome encapsulation for focused beam shaping. The product supports customizable narrow viewing angles including 15° and 30°, and multiple optional emitting spectrums covering visible red light (620~630nm) and infrared wavelengths at 730nm, 850nm, 940nm to satisfy diversified application requirements across automotive lighting, traffic warning equipment, medical beauty apparatus and industrial infrared inspection instruments.

The LED is built with high thermal conductivity modified PPA lead frame, which effectively accelerates internal heat conduction during continuous energized operation, restraining excessive junction temperature rise and long-term lumen depreciation. Designed with standard dual-terminal pad layout marked IR+ (Anode) and IR- (Cathode), the component is fully compatible with high-speed automatic SMT pick-and-place equipment and lead-free reflow soldering processes, suitable for large-scale automated PCB assembly. All production batches comply with international RoHS and REACH environmental control regulations, restricting hazardous substances to meet global electronic and lighting product import standards.

Two lens surface options are available for flexible optical matching: clear transparent dome for high-concentration spotlight output and frosted diffused dome for mild uniform illumination, allowing customers to select appropriate versions according to their finished luminaire optical design scheme. The rated standard operating forward current is 20mA per chip, with stable electrical parameters and consistent chromaticity performance during mass production.

2. Core Product Advantages & Features

Optimized Dome Focusing Optical Structure

The integrated hemispherical convex silicone dome lens is precisely molded with professional optical curvature, concentrating light into fixed narrow 15° or 30° beam range. Compared with flat-top 2835 LED, it features stronger light penetration and higher axial luminous intensity, reducing invalid scattered light loss and improving effective light utilization rate, which is critical for long-distance warning signal transmission of traffic and automotive indicator lamps.

Multi-Spectrum Customization Flexibility

Multiple mature wavelength configurations are available: visible red band at 620~630nm for signal indication, 730nm near-infrared for skin care physiotherapy, 850nm standard near-infrared for industrial detection and biometric sensing, and 940nm invisible infrared without visible red glow for non-contact detection equipment. Different chip epitaxial materials are selected correspondingly to guarantee stable peak wavelength consistency within tolerance range.

High Thermal Stability Packaging Design

High thermal conductive modified PPA plastic substrate plus inner silver plating circuit design greatly reduces thermal resistance between LED chip and external PCB board. When operating continuously under rated 20mA current, the junction temperature is effectively controlled, slowing down chip light attenuation and extending nominal service life over 50,000 hours under normal operating ambient temperature between -40℃ ~ +85℃.

Standardized Dual-Pin SMD Layout for Mass Production

Fixed IR+ / IR- two-pad layout follows universal 2835 industry pad specification matching the recommended PCB footprint shown on dimensional drawing. It avoids complicated multi-pin layout cost, fits common automatic mounter and reflow oven parameters, cutting down production setup time and assembly failure rate during customer’s mass manufacturing.

Dual Lens Version Selection to Match Different Scenarios

Clear dome: high spotlight intensity, mainly used for traffic warning lamp, automotive turn signal lamp, long-distance infrared detection supplementary lighting; Frosted diffused dome: even soft light output without dazzling spot, ideal for facial beauty LED mask and close-range physiotherapy heating light source.

Full Compliance with Global Environmental Directives

Raw materials including epoxy silicone, plastic housing and internal bonding wire are strictly screened to pass RoHS & REACH testing, free from lead, mercury, cadmium and restricted phthalates, supporting products to enter EU, North America and other mainstream global markets without customs environmental certification obstacles.

3. Detailed Electrical & Optical Specification Parameters (Ta=25℃ Ambient Temperature, IF=20mA Rated Current)

Parameter Item	Red Light (620~630nm)	IR 730/850/940nm Infrared	Unit	Supplementary Description
Overall Package Dimension	3.5×2.8×2.45	3.5×2.8×2.45	mm	Standard 2835 SMD outline
Optional Viewing Angle	15° / 30° customizable	15° / 30° customizable	Deg	Narrow focused beam only
Dominant Wavelength Range	620 ~ 630	720~740 / 840~860 / 930~950	nm	Custom wavelength available upon special request
Typical Forward Voltage (VF)	2.0 ~ 2.4	1.4 ~ 1.8	V	Tested under standard 20mA forward current
Rated Continuous Forward Current	20	20	mA	Recommended normal operating current
Peak Pulse Current (10% duty cycle,0.1ms)	40	40	mA	Maximum allowable instantaneous pulse current
Reverse Withstand Voltage (VR)	≥5	≥5	V	Maximum permissible reverse voltage to prevent breakdown
Lens Option	Clear / Frosted Dome	Clear / Frosted Dome	-	Two surface types for different optical design
Pin Definition	IR+=Anode, IR-=Cathode	IR+=Anode, IR-=Cathode	-	Consistent polarity marked on component outline
ESD Protection Level (HBM)	≥2000	≥2000	V	Anti-static capability for production & assembly
Environmental Certification	RoHS, REACH	RoHS, REACH	-	Full compliance certificate available

Remark of Parameter Tolerance

Forward Voltage tolerance: ±0.1V; Dominant wavelength tolerance: ±5nm; Luminous intensity tolerance: ±15% within production batches.

4. Main Application Fields & Detailed Usage Description

4.1 Automotive Lighting Industry

Motorcycle auxiliary turn signal lamp, door opening warning indicator light, small side marker lamp for passenger vehicles;

Automotive interior button backlight, gear shift status indicator, vehicle charging port pilot light;

Miniature off-road vehicle daytime running auxiliary lamp with concentrated narrow-angle spotlight for exterior warning.

4.2 Traffic Safety & Access Control Equipment

Mini road barricade warning lamp, parking barrier gate opening/closing status indicator, pedestrian passage signal light;

Portable construction road hazard warning strobe lamp, short-distance traffic signal pilot lamp for community parking lot.

4.3 Medical & Household Beauty Equipment

Infrared facial rejuvenation LED beauty mask, hot compress anti-aging skincare apparatus;

Household joint/knee physiotherapy heating lamp, eye massager auxiliary infrared supplementary light;

Foot spa heating infrared source and small moxibustion auxiliary physiotherapy lighting component.

4.4 Industrial Testing & Intelligent Sensing Devices

Infrared gas concentration detection equipment built-in light source, barcode & QR code scanning supplementary fill light;

Non-contact proximity sensing module, biometric fingerprint capture auxiliary infrared lamp, miniature security night vision supplementary lighting.

5. Storage, Soldering & Reliability Instruction

5.1 Reflow Soldering Specification

Only single-time reflow soldering is permitted; repeated high-temperature oven passing will damage internal chip and silicone lens structure.

Lead-free soldering: peak temperature ≤260℃, heating rate ≤4℃/s, soaking duration over 120s within 180~200℃;

Leaded soldering: peak temperature ≤230℃, heating rate ≤4℃/s, soaking duration over 120s within 140~160℃.

5.2 Storage Requirement

Unopened original moisture-proof reel packaging should be stored at ambient temperature 0~30℃ with relative humidity below 60%, valid storage period up to 60 days;

After unpacking the tape reel, all LEDs shall be fully used within 24 hours; leftover unused components must be baked at 60℃ for 12~24 hours before subsequent SMT processing to eliminate internal moisture.

5.3 Reliability Test Standard

All products pass standard reliability tests including high-low temperature cycling (-40℃~+85℃ for 100 cycles), high temperature & high humidity aging (85℃, RH85% for 1000H), long-time powered aging at rated current, with final lumen decay controlled below 30% after full testing.

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