Hermetically Sealed, Low IF, Wide Vcc, High Gain Optocouplers

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The HCPL-573K#300 is a High Reliability, Space Level Class K HCPL-573K with a surface mountable gull wing lead form and solder dipped lead finish. The solder contains lead. Please use the Datasheet link for further details.


  • Highest Reliability, Two Channel, 8-Pin DIP
  • Performance Guaranteed from -55 degrees to 125 degrees C
  • MIL-PRF-38534 Class K, QML-38534
  • Dual Marked with Device Part Number and DSCC Standard Microcircuit Drawing
  • High Radiation Immunity
  • Reliability Data
  • Five Hermetically Sealed Package Configurations Available
  • One and Four Channel Devices Available (may be different package)
  • Low Input Current Requirement: 0.5 mA
  • High Current Transfer Ratio: 1500% Typical @ IF = 0.5 mA
  • Low Output Saturation Voltage: 0.11 V Typical
  • 1500 Vdc Withstand Test Voltage


  • Military and Aerospace
  • High Reliability Systems
  • Transportation, Medical, and Life Critical Systems
  • Telephone Ring Detection
  • Microprocessor System Interface
  • EIA RS-232-C Line Receiver
  • Voltage Level Shifting
  • Isolated Input Line Receiver
  • Isolated Output Line Driver
  • Logic Ground Isolation
  • Current Loop Receiver
  • System Test Equipment Isolation
  • Process Control Input/Output Isolation
  • Harsh Industrial Environments

Lifecycle Status


Lifecycle Status


Specification Value
Lifecycle Active
Distrib. Inventory No
Samples Available No
CMR (min.) (V/µs) 1000.0
CTR Min. (%) 300.0
IF Min. (mA) 0.5
Input Current Ma Uom mA
RoHS6 Compliant N
Package Hermetic 8 Pin DIP
Product Type Hermetic High Gain
Prop Delay (tPHL) Max. (µs) 100.0
Prop Delay tPHL Uom µs
Prop Delay (tPLH) Max. (µs) 60.0
Prop Delay tPLH Uom µs
Reliability Class MIL-PRF-38534 Class K
VDD2 (V) 2.0
Data Rate 100 Kb/s


Application Note (2) i
Design Guide (1) i
Product Change Notice (PCN) (5) i
Regulatory Certificate (1) i
White Papers (1) i