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Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
FSQ321
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 355,889.44 AED | Dhs. 355,889.44 AED |
| 15+ | Dhs. 344,650.82 AED | Dhs. 5,169,762.30 AED |
| 25+ | Dhs. 337,158.41 AED | Dhs. 8,428,960.25 AED |
| 50+ | Dhs. 318,427.39 AED | Dhs. 15,921,369.50 AED |
| 100+ | Dhs. 280,965.35 AED | Dhs. 28,096,535.00 AED |
| N+ | Dhs. 56,193.07 AED | Price Inquiry |
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onsemi FSQ321 Flyback Switching Controller IC
The FSQ321 is a high-performance isolated flyback switching controller from onsemi's FPS™ (Fairchild Power Switch) series, designed for offline AC-DC power conversion applications up to 12W. This integrated controller combines a 650V power MOSFET with advanced protection features, making it ideal for compact, cost-effective power supply designs in industrial, consumer, and telecommunications equipment.
Key Features & Benefits
- Integrated 650V Power MOSFET: Reduces component count and board space
- 12W Output Power: Optimized for low-to-medium power applications
- Comprehensive Protection: Current limiting, over-load, over-temperature, and over-voltage safeguards ensure reliable operation
- Wide Operating Range: 8V to 20V supply voltage, -40°C to 85°C ambient temperature
- Frequency Synchronization: 55kHz to 67kHz switching frequency with sync capability
- Through-Hole 8-DIP Package: Easy assembly and prototyping
Typical Applications
- AC-DC adapters and chargers
- Auxiliary power supplies
- Standby power for appliances
- Industrial control systems
- LED driver circuits
Authenticity Guarantee: All FSQ321 units are sourced through authorized onsemi distribution channels with full manufacturer traceability and documentation. We support long lifecycle availability for your critical designs.
Technical Support: Need design assistance, reference schematics, or application notes? Our engineering team provides comprehensive design-in support for power supply projects.
| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | FPS™ |
| Packaging | | |
| 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) | 12 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 |  |
FSQ321.pdf