onsemi FSQ0165RN

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onsemi FSQ0165RN - FPS™ Flyback Switching Regulator

The FSQ0165RN from onsemi is a high-performance offline flyback switching regulator from the FPS™ (Fairchild Power Switch) series. Designed for isolated AC-DC power conversion applications up to 15W, this integrated solution combines a 650V power MOSFET with advanced control circuitry in a compact 8-DIP through-hole package.

Key Features & Benefits

  • Integrated 650V Power Switch: High breakdown voltage enables wide input voltage range and robust performance
  • 15W Power Output: Optimized for low-to-medium power offline applications including adapters, chargers, and auxiliary supplies
  • 55-67kHz Switching Frequency: Balanced for efficiency and component size optimization
  • Comprehensive Protection: Built-in current limiting, overload, over-temperature, and over-voltage protection ensures reliable operation
  • Wide Operating Range: 8V-20V supply voltage, -40°C to +85°C ambient temperature rating
  • Easy Integration: Standard 8-DIP package simplifies PCB layout and assembly

Typical Applications

  • AC-DC adapters and chargers
  • Auxiliary power supplies for industrial equipment
  • Home appliances and consumer electronics
  • Standby and housekeeping power supplies
  • Telecom and networking equipment

Compliance: RoHS compliant - environmentally friendly and suitable for global markets.

Quality & Traceability: Authorized distribution with full manufacturer traceability. Long lifecycle commitment ensures availability for design-in applications across aerospace, automotive, industrial, medical, and telecom segments.

Product attributes Property Value
Manufacturer onsemi
Product Series FPS™
Packaging Tube |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 650V
Topology Flyback
Voltage - Start Up 12 V
Voltage - Supply (Vcc/Vdd) 8V ~ 20V
Duty Cycle -
Frequency - Switching 55kHz ~ 67kHz
Power (Watts) 15 W
Fault Protection Current Limiting, Over Load, Over Temperature, Over Voltage
Control Features Sync
Operating Temperature -40°C ~ 85°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