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VSMY2850G

VSMY2850G

Vishay Semiconductor Opto Division
Infrared (IR) Emitter 850nm 1.6V 100mA 70mW/sr @ 100mA 20° 2-SMD, Gull Wing
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Overview

The VSMY2850G is a high-power infrared emitting diode based on Surface-Emitter technology, operating at an 850nm peak wavelength. It features a narrow 20-degree viewing angle and high radiant intensity of 70mW/sr, making it ideal for applications requiring focused long-range IR signals in a compact gull-wing SMD package.

Why Choose This Part

This emitter supports high pulse current operation up to 1A, allowing for increased range in pulsed sensing modes. Its Surface-Emitter technology provides superior radiant intensity compared to standard emitters, while the gull-wing package simplifies PCB inspection.

Applications

Optical Switches
Used in non-contact switching and miniature light barriers due to its high radiant power and narrow beam.
Proximity Sensors
Serves as an efficient IR source for reflection-based distance sensing in mobile and industrial devices.
Smart Metering
Provides reliable infrared data transmission and pulse output for utility meters.
Photointerrupters
Enables precise position sensing and speed measurement in mechanical systems.

Key Specifications

Type Infrared (IR)
Wavelength 850nm
Orientation Top View
Mounting Type Surface Mount
Viewing Angle 20deg
Package / Case 2-SMD, Gull Wing
Operating Temperature -40degC ~ 85degC (TA)
Voltage - Forward (Vf) (Typ) 1.6V
Current - DC Forward (If) (Max) 100mA
Radiant Intensity (Ie) Min @ If 70mW/sr @ 100mA

Getting Started

To integrate this emitter, design a constant-current driver or use a current-limiting resistor calculated for a typical forward voltage of 1.6V at 100mA. Ensure the PCB thermal pad layout accounts for power dissipation during continuous operation, and pair it with a 850nm silicon phototransistor or PIN photodiode for optimal signal reception.

Also Consider

SFH 4550 ams OSRAM - An alternative 850nm emitter in a through-hole T-1 3/4 package for applications requiring higher radiant intensity.
VSMY2850RG VSHVishay - The reverse-gullwing version of the same emitter for specialized mounting requirements.