0.4 Amp Output Current IGBT Gate Drive Optocoupler

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The HCPL-T251 gate drive optocoupler contains GaAsP LED. The LED is optically coupled to an integrated circuit with a power output stage. This optocoupler is ideally suited for driving power IGBTs and MOSFETs used in motor control inverter applications. The wide operating voltage range of the output stage provides the drive voltages required by gate controlled devices. The voltage and current supplied by this optocoupler makes it ideally suited for the direct driving of small or medium power IGBTs.



  • Supply Current(Icc): 11 mA (Max.)
  • Supply Voltage(Vcc): 10-30 V
  • Output Current(Io): /-0.4 A (Min.)
  • Switching Time(tPLH/tPHL): 1us (Max.)
  • Isolation Voltage(Viso): 2500 Vrms (Min.)
  • UL 577 Recognized: File No. E55361
  • CSA Approved
  • 10 kV/us Minimum Common Mode Rejection (CMR) at Vcm = 600 V
  • Creepage Distance: 7.4 mm. Clearance: 7.1 mm
  • Options available are:
300 = Gull Wing Surface Mount Option
500 = Tape and Reel Packaging Option
XXXE = Lead Free Option


  • IGBT/MOSFET Gate Drive
  • AC/Brushless DC Motor Drives
  • Industrial Inverters
  • Switch Mode Power Supplies
  • Lifecycle Status


    Substance Compliance

    • RoHS
      Pb & Pb-free options available
    Specification Value
    Lifecycle Active
    Distrib. Inventory Yes
    RoHS6 Compliant Pb & Pb-free options available
    Package 300mil DIP-8
    IF Min. (mA) 8.0
    Peak Output Current Min (A) 0.1
    Peak Output Current Max (A) 0.4
    Vcc (V) 30
    CMR (min.) (V/µs) 10000.0
    Vcm (V) 600.0
    UL Insulation Rating Viso (VRMS) 3750.0
    Prop Delay (tPHL) Max. (µs) 1
    Prop Delay (tPLH) Max. (µs) 1
    Application Brief1 i
    Application Note12 i
    Brochures2 i
    Design Guide1 i
    FAQs2 i
    Obsolescence Notice1 i
    Options Data Sheet6 i
    Product Change Notice (PCN)17 i
    Regulatory Certificate1 i
    Reliability Data Sheet2 i
    Selection Guide2 i
    Technical Notes2 i
    White Papers5 i
    Promotional Material1 i