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STR3A161HD - High-Performance AC/DC Offline Switching IC

The STR3A161HD from Sanken Electric is a robust 36-watt flyback switching IC designed for isolated AC/DC power supply applications. Featuring a 700V breakdown voltage and 100kHz switching frequency, this component delivers reliable performance across demanding industrial, telecommunications, medical, and consumer electronics applications.

Key Features & Benefits

  • 36W Power Output - Optimized for medium-power isolated supplies
  • 700V Breakdown Voltage - High voltage tolerance for universal input designs
  • 100kHz Switching Frequency - Enables compact transformer design and reduced EMI
  • Comprehensive Protection - Current limiting, over-load, over-temperature, and over-voltage safeguards
  • Wide Operating Range - 8.1V to 32V supply voltage, -40°C to 115°C ambient temperature
  • 83% Duty Cycle - Maximizes power transfer efficiency
  • Isolated Topology - Ensures safety compliance for end-user equipment

Typical Applications

  • AC/DC adapters and chargers
  • Auxiliary power supplies for industrial equipment
  • Telecom and networking infrastructure
  • Medical device power modules
  • Consumer electronics and home appliances

Quality & Compliance

This component is RoHS compliant and manufactured by Sanken Electric USA Inc., a trusted leader in power semiconductor solutions with proven long-lifecycle support for critical applications.

Product attributes Property Value
Manufacturer Sanken Electric USA Inc.
Product Series STR3A100
Packaging Bulk |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 700V
Topology Flyback
Voltage - Start Up 15.3 V
Voltage - Supply (Vcc/Vdd) 8.1V ~ 32V
Duty Cycle 83%
Frequency - Switching 100kHz
Power (Watts) 36 W
Fault Protection Current Limiting, Over Load, Over Temperature, Over Voltage
Control Features -
Operating Temperature -40°C ~ 115°C (TA)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Supplier Device Package 8-DIP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY