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Medical Grade 3528 940nm IR LED, Dedicated Infrared Light Source for Pulse Oximeter

2026-06-26

Medical Grade 3528 940nm IR LED, Dedicated Infrared Light Source for Pulse Oximeter

3528 940nm IR LED is the core infrared light-emitting component of finger pulse oximeters, wrist blood oxygen monitors and portable medical oxygen testing devices. The consistency of 940nm wavelength, luminous uniformity and anti-decay performance directly affect the detection accuracy of blood oxygen equipment. Medical device manufacturers have strict requirements on the stability and biocompatibility of infrared light sources. Dongguan Lanjin Optoelectronics Co., Ltd. specializes in developing and mass-producing standard and customized 3528 940nm infrared LED for pulse oximeter, providing matched infrared light source solutions for global medical device brands.

Key Advantages of Lanjin 3528 940nm IR LED for Blood Oxygen Monitor

  • Precise 940nm fixed wavelength: Strict wavelength screening for each 3528 940nm IR LED, narrow spectrum deviation, guarantee accurate SpO2 detection data of pulse oximeter.

  • Uniform luminous brightness & low light decay: Imported infrared chip packaging, long-term continuous lighting without brightness drop, avoid frequent calibration of medical equipment.

  • Ultra-small 3528 SMD compact size: Small footprint SMD structure, easy patch welding, perfectly fit mini portable finger oximeter internal limited space.

  • Low power consumption design: Low driving current design, extend the battery standby time of rechargeable and disposable pulse oximeters.

  • Medical standard environmental resistance: Anti-oxidation waterproof epoxy encapsulation, stable performance under human body temperature and daily humid storage environment.

Main Application Scenarios of 3528 940nm IR LED in Oximeter Equipment

Standard and customized 3528 940nm IR LED manufactured by Dongguan Lanjin Optoelectronics cover almost all mainstream blood oxygen testing medical devices on the market:

Finger Clip Pulse Oximeter

Household portable fingertip blood oxygen detector for home health monitoring

Wearable Wrist Oximeter

Smart wristband built-in blood oxygen monitoring module for sports & sleep tracking

Medical Desktop Blood Oxygen Monitor

Hospital ward high-precision multi-parameter vital sign monitoring equipment

Children & Elderly Special Oximeter

Low stimulation lightweight blood oxygen testing equipment for home medical care

Why Medical Device Manufacturers Choose Dongguan Lanjin Optoelectronics’ 3528 940nm IR LED

As a professional infrared SMD LED manufacturer focusing on 3528 940nm IR LED for pulse oximeter, our full-set production factory is located in Dongguan, strictly following medical electronic component production standards:

  1. Dust-free clean workshop production, full automatic SMD packaging line supports mass OEM & ODM orders, stable delivery cycle for medical device batch production;

  2. Special optical testing laboratory conducts wavelength, brightness, aging and temperature cycle full inspection to guarantee consistent detection performance of each batch 940nm infrared LED;

  3. Medical electronics R&D team provides free sample testing, spectrum test report and PCB matching technical support for oximeter developers;

  4. Customization available: luminous intensity, pin layout, tape packaging can be adjusted according to customers’ blood oxygen monitor structural design;

  5. Complete global export certifications including RoHS, REACH, suitable for EU, North America, Southeast Asia medical device export standards.

Request Free 3528 940nm IR LED Samples for Your Pulse Oximeter Project

If you are developing or mass-producing household or clinical blood oxygen testing devices and searching for reliable 3528 940nm IR LED suppliers, feel free to contact Dongguan Lanjin Optoelectronics Co., Ltd.. We offer free prototype samples, complete spectral parameter datasheets and exclusive medical infrared light source customized solutions to improve detection precision of your pulse oximeter products.


Contact Details

Dongguan Lanjin Optoelectronics Co., Ltd.

Contact Person: Miss. Ava Huang

Tel: +86 18819512052

Fax: 86-0769-89616935

Send your inquiry directly to us