Fairchild Semiconductor Introduces AlGaAs Infrared LED Phototransistor

Fairchild Semiconductor has designed developed the FODM8801, part of the OptoHiT™ series of high temperature phototransistor optocouplers.

These devices use Fairchild’s proprietary OPTOPLANAR® coplanar packaging technology to achieve high noise immunity and reliable isolation at high operating temperatures.

The FODM8801 consists of an aluminum gallium arsenide (AlGaAs) infrared LED optically coupled to a phototransistor.

The device provides a guaranteed Current Transfer Ratio (CTR) for both saturated and non-saturated modes of operation and switching specifications over the extended operating temperature range (-40°C to +125°C) for greater design flexibility.

It is packaged in a compact, half-pitch, mini-flat, 4-pin package (1.27mm lead pitch).

Additionally, it provides high isolation voltage for increased reliability in lead-free environments.

Devices in the OptoHiT series can be used in industrial applications, including power supplies, motor controls and consumer applications, which include chargers and adapters.

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