Dual Channel, High Speed Optocouplers

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These dual channel optocouplers contains a pair of light emitting diodes and integrated photodetectors with electrical insulation between input and output. Applications include high speed TTL isolation and power module interfaces.

Separate connection for the photodiode bias and output transistor collectors increase the speed up to a hundred times that of a conventional phototransistor coupler by reducing the base-collector capacitance.

It is available in an industry standard SO-8 package. It is an HCPL-0531 with increased common mode transient immunity of 15,000 V/ms minimum at VCM = 1500 V guaranteed.



  • 15 kV/us Miniumum Common Mode Transient Immunity at Vcm = 1500 V
  • High Speed: 1 Mb/s
  • TTL Compatible
  • Available in 8 Pin DIP, SO-8, and 8 Pin DIP - Gull Wing Surface Mount (option 020) Packages
  • High Density Packaging
  • 3 MHz Bandwidth
  • Open Collector Outputs
  • Guaranteed Performance from 0 degrees C to 70 degrees C
  • Safety Approval:
UL Recognized - 3750 V rms for 1 minute (5000 V rms for 1 minute for Option 020) per UL1577
CSA Approved
  • Single Channel Version Available (HCPL-4502/3, HCPL-0452/3)
  • Options available are:
300 = Gull Wing Surface Mount Option
500 = Tape and Reel Packaging Option
XXXE = Lead Free Option


  • Line Receivers - High Common Mode Transient Immunity (>1000 V/ms) and Low Input-Output Capacitance (0.6 pF)
  • High Speed Logic Ground Isolation - TTL/TTL, TTL/LTTL, TTL/CMOS, TTL/LSTTL
  • Replace Pulse Transformers - Save Board Space and Weight
  • Analog Signal Ground Isolation - Integrated Photon Detector Provides Improved Linearity over Phototransistor Type
  • Polarity Sensing
  • Isolated Analog Amplifier - Dual Channel Packaging Enhances Thermal Tracking

Lifecycle Status



  • RoHS
    Pb & Pb-free options available

Lifecycle Status


Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Samples Available Yes
Product Type 1 MBd Transistor Optocoupler
Max Qty of Samples 20
RoHS6 Compliant Pb & Pb-free options available
Package SO8
IF Min. (mA) 16.0
CTR Min. (%) 15.0
Prop Delay (tPLH) Max. (µs) 1.0
Prop Delay (tPHL) Max. (µs) 1.0
CMR (min.) (V/µs) 15000.0
Vcm (V) 1500.0
UL Insulation Rating Viso (VRMS) 3750
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 567.0


Application Brief (1) i
Application Note (5) i
Brochures (2) i
Data Sheet (1) i
Design Guide (1) i
FAQs (1) i
Obsolescence Notice (1) i
Options Data Sheet (5) i
Product Change Notice (PCN) (15) i
Promotional Material (1) i
Regulatory Certificate (1) i
Selection Guide (1) i
White Papers (3) i