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Vishay VSMY12940 Infrared Emitter Diode

The VSMY12940 is a high-speed infrared emitter diode operating at 940 nm, based on GaAlAs surface emitter technology with high radiant intensity and optical power. Encased in a surface-mount package with an inner lens, it is suitable for proximity sensors, IR touch panels, photointerrupters, and optical switches. It features a top view package, operating at high pulse currents, RoHS compliance, and a wavelength of 940 nm. The device has a peak radiant power of 16 mW/sr at 940 nm with a typical angular half-intensity of +40°.

Authorized Distributors
Source:Newark
Part No:VSMY12940
Stock:3000
Inv Date:06-09-2026
Price: Unit price: $0.242
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Source:DigiKey
Part No:VSMY12940
Stock:22214
Inv Date:06-09-2026
Price: Unit price: $0.94
Buy/RFQ:
Part No:VSMY12940
Stock:3699
Inv Date:06-10-2026
Price: Unit price: $0.94
Buy/RFQ:
Part No:VSMY12940
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.27
Buy/RFQ:

Vishay VSMY12940 Infrared Emitter Diode Specifications:

  • Package type: surface mount
  • Package form: top view
  • Dimensions: 3.2 x 1.6 x 1.1 mm
  • Peak wavelength: 940 nm
  • Radiant intensity: 16 mW/sr
  • Radiant power: 40 mW at 70 mA
  • Forward voltage: 16 V at 70 mA
  • Operating temperature range: -40 to +85 °C
  • Storage temperature range: -40 to +100 °C
  • Maximum forward current: 70 mA
  • Surge current: 1 A at 100 ps
  • Power dissipation: 140 mW
  • RoHS compliant
  • Moisture Sensitivity Level: 3
  • Soldering temperature: 260 °C, conforming to J-STD-020
  • Floor life: 168 hours at 6 °C/60% RH
  • Peak wavelength: 940 nm, spectral bandwidth: 35 nm

Buy the Buy Vishay VSMY12940 Infrared Emitter Part Number VSMY12940 Online

Order the Vishay VSMY12940 infrared emitter diode online today and benefit from high radiant power and fast response for proximity sensing, IR touch panels, and photointerrupters. This surface-mount device features a compact 3.2 x 1.6 x 1.1 mm package with a peak wavelength of 940 nm, making it ideal for high-speed optical switching and sensing applications. With RoHS compliance and a maximum forward current of 70 mA, it ensures reliable and efficient performance in various environmental conditions. Purchase now for quick delivery and superior optical performance.

Buy Vishay VSMY12940 now and experience high radiant intensity for your high-speed optical applications.

Frequently Asked Questions

Where can I buy Vishay VSMY12940?

You can click on the BUY or RFQ button to purchase VSMY12940 from an authorized Vishay distributor.

How do I troubleshoot issues or seek technical support for part VSMY12940?

You can download the VSMY12940 datasheet or visit the Vishay website for support.

Who is the manufacturer of VSMY12940?

Vishay

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