Hermetically Sealed, Very High Speed, Logic Gate Optocouplers

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The HCPL-540K-100 is a High Reliability, Space Level Class K HCPL-540K with a surface mountable butt-joint lead form and gold lead finish. Please use the Datasheet link for further details.


  • Highest Reliability, Single 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
  • Three Hermetically Sealed Package Configurations Available
  • Two Channel Devices Available (may be different package)
  • High Speed: 40 M bit/s
  • Active (Totem Pole) Outputs
  • CMR: 500 V/micro-second Guaranteed
  • 1500 Vdc Withstand Test Voltage
  • Three Stage Output Available
  • Compatible with TTL, STTL,LSTTL, and HCMOS Logic Families


  • Military and Aerospace
  • High Reliability Systems
  • Transportation, Medical, and Life Critical Systems
  • Isolation of High Speed Logic Systems
  • Switching Power Supplies
  • Isolated Bus Driver (Networking Applications)
  • Ground Loop Elimination
  • Computer-Peripheral Interfaces
  • Pulse Transformer Replacement
  • High Speed Disk Drive I/O
  • Digital Isolation for A/D, D/A Conversion
  • Harsh Industrial Environments

Lifecycle Status



  • RoHS6
    Fully Compliant

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory No
Samples Available No
CMR (min.) (V/µs) 3000.0
Data Rate 40 Mb/s
Hysteresis (mA) 0.25
Hysteresis Uom mA
IF Min. (mA) 6.0
Input Current Ma Uom mA
RoHS6 Compliant Y
Package Hermetic 8 Pin DIP
Product Type Hermetic High Speed Logic Gate
Prop Delay (tPHL) Max. (µs) 60.0
Prop Delay tPHL Uom ns
Prop Delay (tPLH) Max. (µs) 60.0
Prop Delay tPLH Uom ns
PWD (max.) 35
Pwd Max Uom ns
Reliability Class MIL-PRF-38534 Class K
VDD2 (V) 4.75


Application Note (2) i
Data Sheet (1) i
Design Guide (1) i
Product Change Notice (PCN) (3) i
Regulatory Certificate (1) i
Technical Specification (1) i
White Papers (1) i