Broadcom ACNT-H511C high CTI optocoupler

Broadcom ACNT-H511C high CTI optocoupler


The ACNT-H511C is a single-channel open collector optocoupler device in 15-mm stretched SO8 package

The ACNT-H511C is a single-channel open collector optocoupler device in 15-mm stretched SO8 package. The device is equipped with an insulating layer between the light-emitting diode and an integrated photon detector to provide electrical insulation between the input and output. Having separate connections for the photodiode bias and output transistor collector reduces the base-collector capacitance and enhances the data speed up to a hundred times compared to a conventional photo-transistor coupler.

Key features

  • More than 600 V CTI,  Material Group I
  • 15 mm Stretched SO8 Package
  • TTL Compatible
  • Open-Collector Output

Additional features

  • High CTI, open collector output optocoupler in 15 mm stretched SO-8 package
  • Guaranteed AC and DC performance over wide temperature: -40 to +105 °C
  • Wide operating Vcc range: 4.5 to 24 V
  • Internal clearance (DTI): 0.5 mm
  • 40 kV/μs typical common-mode rejection (CMR) at VCM = 1500 V
  • Safety and regulatory approvals:
    • UL 1577 Recognized: 7500 VRMS for 1 minute
    • CSA approved
    • IEC/EN 60747-5-5 approved for reinforced insulation:
      • VIORM = 2262 VPEAK
      • VIOTM = 12000 VPEAK


  • High-voltage power systems, for example, 690V AC drives
  • Renewable energy inverters
  • Feedback elements in switching power supplies
  • Digital isolation for A/D, D/A conversion digital field
  • Communications interface
  • MCU interface

more information:

About mixos

Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

view all posts by admin
Notify of

Inline Feedbacks
View all comments

Join 97,914 other subscribers