Not every LED application is about visible light. A growing share of modern electronics relies on near-infrared illumination — from night-vision cameras and machine-vision sensors to optoelectronic switches. In this article we spotlight one concrete emitter from the Lanjin catalogue and explain where it earns its place on the board.
The 3W 3535 SMD IR LED Chip is a compact surface-mount infrared emitter that delivers high-intensity illumination in the near-infrared band. Its 3 W rating and a wide 120° 800nm viewing angle make it a strong fit for camera and sensing designs that need even, dependable coverage in low-light conditions.
| Parameter | Value (3W 3535 SMD IR LED Chip) |
|---|---|
| Emission Band | Near Infrared (800–810 nm) |
| Power Rating | 3 W |
| Radiant Power | 300–500 mW @ 700 mA |
| Forward Voltage | 1.4–1.7 V |
| Viewing Angle | 120° |
| Package | 3.5 × 3.5 × 2.36 mm (SMD 3535) |
| Switching Speed | Instant light (<100 ns) |
| Lifespan | 50,000 hours |
| Packing / Compliance | 2,000 pcs / reel · RoHS |
At 800–810 nm the emission sits just beyond human vision, so it lights up a scene for a camera without producing a visible glow. Combined with a wide 800nm viewing angle, the 3535 emitter spreads that illumination evenly instead of creating a harsh hotspot — exactly what security and machine-vision optics need. Gold-wire bonding and good heat dissipation keep the output stable, while sub-100 ns switching supports fast strobe and time-of-flight style sensing.
An IR design is only as good as its receiving side. Lanjin’s dedicated anti static ir emitter receiver range — including 5 mm 940 nm IR LEDs paired with matched phototransistors — is built with pure gold-wire bonding and strong ESD protection so emitter and sensor stay in sync across long production runs. Using a matched emitter/receiver pair reduces alignment tuning and improves detection reliability.
Projects that also need visible status indication can draw on the same supply chain. Recognised among bi color smd led suppliers usa buyers turn to for consistent quality, Lanjin’s bi-color SMD LEDs (0805, 0603, 1206, 2835, 3030, 3528) combine two colors in one package — red/yellow, red/green, red/blue and red/white — with superior ESD protection, making them ideal for dashboards, panels, signage and indicator lights.
Both product families are manufactured by 东莞市蓝晋光电有限公司 (Dongguan Lanjin Optoelectronics Co., Ltd.), established in 2005. From a 2,500 m² plant equipped with a purification, constant-temperature and constant-humidity anti-static workshop, the company produces SMD LED, through-hole LED, LED displays and LED PCB assembly. Lanjin is ISO9001:2015 certified, holds two national invention patents and twelve practical new-type patents, and ships worldwide under the promise “LED light the world, Lanjin lights your life!”
Takeaway: for invisible, high-power illumination choose the 3W 3535 SMD IR LED Chip 800nm/810nm with its 120° 800nm viewing angle — and pair it with Lanjin’s anti static ir emitter receiver line for a complete, reliable IR solution.
담당자: Miss. Ava Huang
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