1MBd Optocoupler in 15mm Stretched SO8 Package

Currently Viewing:

ACNT-H50L is a single-channel 1MBd optocoupler device in 15mm stretched SO8 package. The device is equipped with an insulating layer between the light emitting diode and 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.

The ACNT-H50L is well suited for isolated communication logic interface and control in high-voltage power systems such as 1500V PV systems, 690VAC drives, renewable inverters and medical equipment.


  • High Speed: 1 Mb/s
  • TTL Compatible
  • Open-Collector Output
  • Guaranteed AC and DC Performance over Wide Temperature: -40 °C to +105 °C
  • Wide Operating Vcc Range: 3 to 24 V
  • 15mm Stretched SO8 Package
  • Internal Clearance (DTI): 0.5 mm
  • 15 kV/μs Minimum Common Mode Rejection (CMR) at VCM = 1500 V
  • Safety and Regulatory Approvals
    • UL 1577 Recognized: 7,500 VRMS for 1 minute
    • CSA Approved
    • IEC/EN 60747-5-5 Approved for Reinforced Insulation: VIORM = 2,262 Vpeak and  VIOTM = 12,000 Vpeak


  • Communication Interface
  • Feedback Elements in Switching Power Supplies
  • Digital Isolation for A/D, D/A Conversion 
  • High Voltage Power Systems (i.e., 690VAC Drives)
  • Renewable Energy Inverters
  • Medical Imaging and Patient Monitoring

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
RoHS6 Compliant Y
Distrib. Inventory Yes
Product Type 1 MBd Transistor Optocoupler
Package Stretched SO8
VDD (V) 24
IF Min. (mA) 10.0
CTR Min. (%) 21.0
CTR Max. (%) 80
Prop Delay (tPLH) Max. (µs) 1.3
Prop Delay (tPHL) Max. (µs) 1.0
CMR (min.) (V/µs) 15000.0
Vcm (V) 1500.0
UL Insulation Rating Viso (VRMS) 7500.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 2262
Application Note2 i
Data Sheet2 i
Options Data Sheet3 i
Reliability Data Sheet2 i
Selection Guide1 i
Technical Notes1 i
FAQs1 i
Promotional Material1 i