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W5453 Power STR IC – 6-Pin Offline Switching Regulator

The W5453 is a high-integration Power STR IC designed for offline switching power supplies. Featuring a 6-pin configuration, this module integrates both the controller and the power MOSFET, providing a compact and efficient solution for TV and monitor PSU repairs. It is specifically engineered to handle high voltages and provide stable DC outputs even under load fluctuations. With its built-in safety mechanisms and low standby power consumption, the W5453 is the professional choice for modern display power board maintenance. Fix dead power circuits reliably with this industrial-grade STR.

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Product Overview

The W5453 (STR-W5453) is a critical part of many modern SMPS designs. By moving the switching and control logic into a single 6-pin package, it simplifies circuit design and improves reliability. This IC is known for its robust protection suite, which guards against over-voltage, over-current, and thermal overload. It is a standard component for electronics technicians repairing mid-range displays and power adapters.

Key Features

  • Integrated 6-Pin Design: Combines controller and MOSFET for space efficiency.
  • High Voltage Rating: Built for direct AC line rectified power supplies.
  • Low Standby Power: Meets global energy efficiency standards.
  • Internal Safety Suite: Thermal shutdown and pulse-by-pulse current limiting.
  • Precision Frequency Control: Ensures stable power output for sensitive logic.

Benefits

The W5453 provides a stable and efficient power conversion environment, which reduces the heat generated by your device’s power supply. Its high level of integration makes it a very reliable repair part, as it replaces multiple discrete components that could fail. It’s an essential part for technicians looking to restore power boards to factory specifications. It offers a professional, cost-effective alternative to replacing entire expensive circuit boards.

Technical Specifications

  • Model: STR-W5453 / W5453A
  • Package: ZIP-6 / TO-220F-6
  • Function: Offline Switching Regulator
  • Voltage: High-Voltage SenseFET Integrated

Applications

LED/LCD Television Power Supplies, Industrial PSU modules, and high-quality AC/DC adapters.

Package Contents

1 x W5453 Power STR IC.

Why Buy This Product?

We ensure our STR ICs are genuine and sourced from reputable manufacturers. Our W5453 units are checked for pin integrity and electrical standards to ensure your repair is successful.

Frequently Asked Questions

Q: How does the W5453 compare to the 5-pin STRs?
A: The 6-pin W-series often features better integration for standby power control and is generally found in more modern, energy-efficient designs.
Q: Does this IC need a heat sink?
A: Yes, it should be mounted to the existing heat sink on your power board using thermal compound for proper heat dissipation.

SKU: EC-STR-8559 Category: Tag:

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