Extreme Temperature(+175˚C), Hermetically Sealed, Optically Isolated, 60V Solid State Relay

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The ASSR-7300 is a single channel, isolated Solid State Relay (SSR) constructed in an eight-pin, hermetic, dual-in-line, ceramic package that is capable of operation over extreme temperatures from -55˚C to +175˚C. Each device contains an AlGaAs light emitting diode optically coupled to a photovoltaic diode stack which drives two discrete power MOSFETs.  The ASSR-7300 has a 60V withstand voltage, On-Resistance of 0.6Ω and is tested to 1500V withstand voltage.

The device operates as a solid-state replacement for single pole, normally open, (1 Form A) relays used for general purpose switching of signals and loads in high temperature applications. The devices feature logic level input control and very low output on-resistance, making them suitable for both ac and dc loads. The devices are convenient replacements for mechanical relays where reduced component size and high component reliability is desirable. Devices may be purchased with a variety of lead bend and plating options.


• Compact Solid-State Bidirectional Switch

• Performance Guaranteed over -55˚C to +175˚C

• Hermetically Sealed 8-Pin Dual In-Line Package

• SMT and PTH Lead Options

• Small Size and Weight

• 1500 Vdc Withstand Test Voltage

• High Transient Immunity

• Connection A: 0.8A, 1.2Ω

• Connection B: 1.6A, 0.6Ω

• 60V Withstand Voltage


• AC/DC Electromechanical Relay Replacement

• 28/48VDC Load Drivers

• Extreme Temperature Operation

• Down Hole and Directional Drilling

• High Temperature Engine Control

• Harsh Industrial Environments

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory No
IF Min. (mA) 10.0
RoHS6 Compliant Y
Package Hermetic 8 Pin DIP
Product Type Hermetic Power MOSFET
Reliability Class Commercial
Turn Off Time (msec) 0.03
Turn On Time (msec) 0.5
Output Withstand Voltage (V) 60
Operating Temperature Deg C 175
Leakage Current Max (uA) 150
Data Sheet1 i
Selection Guide1 i