CH350 Schematic

CH350 Features

Released to European Standard and complies to MIL-STD

Total Ionizing Dose tested to 1 Mrad(si)

Displacement Damage tested to 1 MEV x 10¹³

Hermetically Sealed

High Withstand Test Voltage up to 500VDC

5-pin Hybrid Package

High Common Mode Rejection

High Current Transfer Ratio


This device is single, hermetically sealed optically coupled isolators.  The channel is composed of a Gallium Arsenide infrared emitting diode coupled to an integrated high speed photon detector.  The output of the detector is an open collector Schottky clamped transistor.

This CH350 has an internal shield providing a guaranteed common mode transient immunity specification of 1000V/μs and is used for isolation voltage applications requiring up to 500VDC.  The CH350 is being used in environments encountered by space applications.  It is manufactured to meet JANS standards in conjunction with MIL-PRF-19500 procedures (please see next page for all other applicable specifications).  The package style for this device is a 5-pin Hybrid, with solder dip option available.

Absolute maximum ratings, recommended operating conditions, electrical specifications and performance characteristics are identical for all units. Any exceptions, due to packaging variations and limitations, are as noted in the datasheet.

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Part: CH350

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