onsemi FSL128MRTWDTU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 355,874.90 | Dhs. 355,874.90 |
| 15+ | Dhs. 344,636.75 | Dhs. 5,169,551.25 |
| 25+ | Dhs. 337,144.64 | Dhs. 8,428,616.00 |
| 50+ | Dhs. 318,414.39 | Dhs. 15,920,719.50 |
| 100+ | Dhs. 280,953.87 | Dhs. 28,095,387.00 |
| N+ | Dhs. 56,190.77 | Price Inquiry |
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onsemi FSL128MRTWDTU - FPS™ Series Offline Switching Regulator
The FSL128MRTWDTU is a high-performance 40W flyback switching regulator from onsemi's FPS™ (Fairchild Power Switch) series. Designed for isolated AC-DC power conversion applications, this integrated controller combines a 800V power MOSFET with advanced protection features for reliable, efficient power delivery in industrial, consumer, and telecommunications equipment.
Key Features & Benefits
- Integrated 800V Power Switch - High breakdown voltage enables direct offline operation from universal AC input
- 40W Output Power - Suitable for medium-power applications including adapters, chargers, and auxiliary supplies
- Flyback Topology - Cost-effective isolated design with minimal external components
- 67kHz Switching Frequency - Optimized for transformer size and efficiency balance
- Comprehensive Protection - Built-in current limiting, overload, over-temperature, and over-voltage protection
- Wide Operating Range - 7.5V to 26V supply voltage, -40°C to 125°C junction temperature
- Through-Hole Package - TO-220F-6L with formed leads for easy PCB assembly and thermal management
- RoHS Compliant - Meets environmental standards for global markets
Typical Applications
- AC-DC power adapters and chargers
- Auxiliary power supplies for industrial equipment
- Set-top boxes and consumer electronics
- LED lighting drivers
- Smart home and IoT devices
- Telecom and networking equipment
Quality & Authenticity Guarantee
All onsemi components are sourced through authorized distribution channels with full manufacturer traceability and documentation. We provide genuine parts with long lifecycle support to ensure your design remains in production for years to come.
Design Resources
Complete datasheets, application notes, reference designs, and technical support available. Our team can assist with component selection, circuit design, and obsolescence management for your power supply projects.
| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | FPS™ |
| Packaging | | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 800V |
| Topology | Flyback |
| Voltage - Start Up | 12 V |
| Voltage - Supply (Vcc/Vdd) | 7.5V ~ 26V |
| Duty Cycle | 67% |
| Frequency - Switching | 67kHz |
| Power (Watts) | 40 W |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage |
| Control Features | - |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-6 Full Pack, Formed Leads |
| Supplier Device Package | TO-220F-6L (Forming) |
| ROHS |  |
FSL128MRTWDTU.pdf