onsemi FSFM300N
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 11.05 | Dhs. 11.05 |
| 15+ | Dhs. 10.72 | Dhs. 160.80 |
| 25+ | Dhs. 10.49 | Dhs. 262.25 |
| 50+ | Dhs. 9.90 | Dhs. 495.00 |
| 100+ | Dhs. 8.74 | Dhs. 874.00 |
| N+ | Dhs. 1.75 | Price Inquiry |
Request Quote / Inquiry
FSFM300N - onsemi FPS™ Flyback Switching Regulator
The FSFM300N is a high-performance 40W flyback switching regulator from onsemi's FPS™ (Fairchild Power Switch) series. This integrated offline switcher combines a 650V MOSFET with a current-mode PWM controller, delivering reliable AC-DC conversion for isolated power supply applications.
Key Features
- 40W Power Output: Suitable for medium-power offline applications including adapters, chargers, and auxiliary supplies
- 650V High-Voltage MOSFET: Provides robust breakdown voltage margin for universal AC input designs
- Integrated Protection: Built-in current limiting, overload, over-temperature, and over-voltage protection ensures safe operation
- 67kHz Switching Frequency: Optimized for transformer size and efficiency trade-offs
- Wide Supply Range: 8V to 21V VCC operating range with 12V startup voltage
- 77% Maximum Duty Cycle: Enables efficient energy transfer in flyback topology
- RoHS Compliant: Meets environmental standards for lead-free manufacturing
Typical Applications
- AC-DC adapters and chargers
- Auxiliary power supplies for industrial equipment
- Offline SMPS (Switched-Mode Power Supplies)
- Consumer electronics power management
- Telecom and networking equipment
Why Choose FSFM300N?
The FSFM300N simplifies offline power supply design by integrating the high-voltage switch and control circuitry in a single package. This reduces component count, board space, and design complexity while maintaining high reliability through comprehensive protection features. The through-hole 8-DIP package ensures easy assembly and robust mechanical connection for industrial and commercial applications.
Long Lifecycle Support: As part of onsemi's FPS™ family, the FSFM300N benefits from the manufacturer's commitment to long-term availability and technical support, making it ideal for designs requiring extended product lifecycles.
Related Resources
Explore more AC DC Converters, Offline Switchers for your power supply design needs. Browse our complete catalog at HQICKEY or visit our Technical Blog for application notes, design guides, and industry insights.
| 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 ~ 21V |
| Duty Cycle | 77% |
| Frequency - Switching | 67kHz |
| Power (Watts) | 40 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 |  |
FSFM300N.pdf