Wide Operating Temperature 1MBd Transistor Output Optocoupler

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The ACPL-M43U high speed, single-channel, 1MBd transistor optocoupler is a new product with enhanced features to meet the extended temperature operating requirement in the industrial applications. This diode-transistor optocoupler houses a new AlGaAsP for higher LED reliability and longer operating life with reduce output drive current.

The insulating layer between the light emitting diode and an integrated photon detector 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-M43U has an increased common mode transient immunity of 15kV/µs minimum at VCM = 1500V guaranteed over extended temperature range.


  • High Temperature and Reliability IPM Driver for Industrial Applications
  • 30 kV/µs High Common-Mode Rejection at VCM = 1500 V (typ)
  • Compact, Auto-Insertable SO5 Packages
  • Wide Temperature Range: -40°C to 125°C
  • High Speed: 1MBd
  • Low LED Drive Current: 10mA (typ)
  • Low Propagation Delay: 300ns (typ)
  • Worldwide Safety Approval: UL 1577 (3750 Vrms/1 min.), IEC/EN/DIN EN 60747-5-2


  • Industrial Intelligent Power Module isolation for motor controls
  • Isolated IGBT/MOSFET gate drive
  • AC and brushless dc motor drives
  • Industrial inverters for power supplies

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Product Type IPM Optocoupler
RoHS6 Compliant Y
Package SO5
IF Min. (mA) 10.0
CTR Min. (%) 20.0
Prop Delay (tPLH) Max. (µs) 1.0
Prop Delay (tPHL) Max. (µs) 1.0
PDD Max (µs) 0.9
CMR (min.) (V/µs) 15000.0
Vcm (V) 1000.0
UL Insulation Rating Viso (VRMS) 3750
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 567.0
Application Brief1 i
Application Note6 i
Brochures2 i
Data Sheet1 i
FAQs2 i
Options Data Sheet3 i
Product Change Notice (PCN)2 i
Regulatory Certificate1 i
Reliability Data Sheet2 i
Selection Guide2 i
Technical Notes1 i
White Papers3 i
Promotional Material1 i


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