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FSDL321
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 355,884.59 AED | Dhs. 355,884.59 AED |
| 15+ | Dhs. 344,646.13 AED | Dhs. 5,169,691.95 AED |
| 25+ | Dhs. 337,153.82 AED | Dhs. 8,428,845.50 AED |
| 50+ | Dhs. 318,423.06 AED | Dhs. 15,921,153.00 AED |
| 100+ | Dhs. 280,961.52 AED | Dhs. 28,096,152.00 AED |
| N+ | Dhs. 56,192.30 AED | Price Inquiry |
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FSDL321 - Fairchild Power Switch (FPS™) Offline Switching IC
The FSDL321 from onsemi is a high-performance integrated offline switching IC designed for cost-effective flyback power supply applications up to 17W. Part of the proven FPS™ (Fairchild Power Switch) family, this device combines a high-voltage power MOSFET with a current-mode PWM controller in a compact 8-DIP through-hole package.
Key Features & Benefits
- Integrated Design: Built-in 650V high-voltage MOSFET eliminates external switching components
- Comprehensive Protection: Current limiting, overload, over-temperature, and over-voltage protection ensure reliable operation
- Isolated Topology: Flyback configuration provides output isolation for safety-critical applications
- Wide Operating Range: 8V to 20V supply voltage with 12V start-up capability
- Efficient Operation: 50kHz switching frequency with 77% maximum duty cycle
- Industrial Temperature Range: -25°C to +85°C ambient operation
- Easy Implementation: Standard 8-DIP through-hole package simplifies PCB layout and assembly
Typical Applications
- AC/DC adapters and chargers (up to 17W)
- Auxiliary power supplies for industrial equipment
- Standby power for consumer electronics
- LED driver circuits
- Smart home and IoT device power supplies
- Battery charging systems
Why Choose FSDL321?
The FSDL321 offers exceptional value for low-to-medium power offline switching applications. Its integrated approach reduces component count, simplifies design, and improves reliability compared to discrete solutions. The comprehensive fault protection features make it ideal for applications requiring robust performance in demanding environments.
Authorized Distribution: We are an authorized distributor of onsemi semiconductor components, providing genuine products with full manufacturer traceability, quality assurance, and technical support. Every FSDL321 IC ships with complete documentation and is backed by our commitment to long lifecycle support.
Need technical support or design assistance? Our applications engineering team is ready to help you integrate the FSDL321 into your power supply design. Contact us for datasheets, reference designs, and expert guidance.
Related Resources & Product Categories
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- AC DC Converters & Offline Switchers - Browse our complete range of AC/DC converter ICs and offline switching regulators for power supply applications
- HQICKEY Homepage - Discover our full catalog of authorized semiconductor components with guaranteed traceability and quality
- Technical Blog & News - Stay updated with the latest application notes, design tips, and semiconductor industry insights
| 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 | 77% |
| Frequency - Switching | 50kHz |
| Power (Watts) | 17 W |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage |
| Control Features | - |
| Operating Temperature | -25°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-DIP |
| ROHS |  |
FSDL321.pdf