High Speed Optocoupler

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The ACPL-K453 is a single-channel transistor optocoupler in an eight lead miniature footprint.

This diode-transistor optocoupler uses an insulating layer between the light emitting diode and an integrated photo detector to provide electrical insulation between input and output. Separate connections for the photodiode bias and output transistor collector increase the speed up to a hundred times over that of a conventional photo-transistor coupler by reducing the base-collector capacitance.

The ACPL-K453 has a common mode transient immunity of 15,000 V/μs minimum at VCM = 1500 V guaranteed.


  • Package Clearance/Creepage at 8mm
  • Function Compatible with HCPL-4503
  • Surface Mountable in 8-pin stretched SO8
  • Very High Common Mode Transient Immunity:  
    15000 V/μs at VCM = 1500 V Guaranteed
  • High Speed: 1 Mb/s
  • TTL CompatibleGuaranteed AC and DC Performance over Temperature:
    0°C to 70°C
  • Open Collector Output

Options available are:
020 = UL 5000 Vrms/1min option
060 = IEC/EN/DIN EN60747-5-2 Option
500 = Tape and Reel Package Option
XXXE = Lead Free Option


  • Line Receivers - High common mode transient
    immunity (>15000 V/μs) and low input-output
    capacitance (0.5 pF).
  • High Speed Logic Ground Isolation - TTL/TTL, TTL/
  • Replace Slow Phototransistor Optocouplers
  •  Replace Pulse Transformers - Save board space and weight
  • Analog Signal Ground Isolation - Integrated photon
    detector provides improved linearity over
    phototransistor type.

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 IPM Optocoupler
Max Qty of Samples 20
RoHS6 Compliant Pb & Pb-free options available
Package Stretched 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) 5000
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 1140.0


Brochures (1) i
Data Sheet (1) i
Options Data Sheet (5) i
Product Change Notice (PCN) (9) i
Regulatory Certificate (3) i
Selection Guide (2) i
White Papers (2) i