STRW6735N

Product Overview

STRW6735N is a Sanken Electric quasi-resonant switching power supply IC that integrates a high-voltage power MOSFET and PWM controller in a single package. Belonging to the STR-W6700 series, the device uses quasi-resonant and bottom-skip quasi-resonant control technologies to achieve high efficiency, low standby power consumption and reduced switching noise. STRW6735N includes multiple protection functions such as overcurrent protection, overload protection and overvoltage protection, making it suitable for digital appliances, industrial equipment and offline flyback power supply applications.

Key Features

• Manufacturer: Sanken Electric Co., Ltd.

• Part Number: STRW6735N / STR-W6735N

• Device Type: Quasi-Resonant Switching Power IC

• Product Category: AC-DC Offline Converter IC

• Integrated Function: PWM Controller + High-Voltage MOSFET

• Control Method: Quasi-resonant current-mode control

• Bottom-Skip QR Operation: Supported

• Drain-Source Voltage Rating: 500V minimum

• Maximum RDS(on): 0.57Ω

• Maximum Control Supply Voltage (VCC): 35V

• Switching Topology: Flyback converter

• Current Mode Control: Built-in

• PWM Oscillator: Integrated

• Soft Start Function: Built-in

• Step-Drive Function: Reduces switching noise

• Protection Functions: Overcurrent protection (OCP)

• Protection Functions: Overload protection (OLP) with latch shutdown

• Protection Functions: Overvoltage protection (OVP) with latch shutdown

• Avalanche Capability: Built-in avalanche energy guaranteed MOSFET

• Package Type: TO-220F-6L

• Mounting Type: Through-hole mounting

• Operating Temperature: -20°C to +115°C

• Application: Offline switching power supplies

• Typical Use: Digital appliances, white goods, OA equipment, industrial equipment and telecom power supplies

• Ordering / Packaging Note: STRW6735N buyers should verify package marking, manufacturer origin, date code and authenticity requirements before procurement.

Applications

STRW6735N is designed for high-efficiency offline switching power supply systems. Typical applications include digital appliances, LCD TVs, monitors, office automation equipment, industrial power supplies, telecommunications equipment and other SMPS products requiring low noise and high efficiency operation. 

Quality & Sourcing

Antrex Electronics can support STRW6735N sourcing with stock verification, RFQ quotation, manufacturer confirmation, package inspection, date code review and shipment arrangement. For legacy Sanken power ICs, customers can provide quantity requirements, application details and quality standards to improve sourcing accuracy.

Quality support can include marking verification, visual inspection, electrical testing coordination and third-party inspection when required. OEMs, power supply manufacturers, EMS providers and repair centers are welcome to submit sourcing requests for STRW6735N and other hard-to-find power semiconductor components.