STR-A6151M

AC DC Converters, Offline Switchers Overview

The STR-A6151M is an off-line primary switcher from Sanken Electric, designed for PWM-type switching power supplies. It integrates a current-mode control circuit with an avalanche-rated power MOSFET in a DIP-8/7 package. The device operates at a maximum switching frequency of 50 kHz and supports a maximum output current of 2.5 A. It functions within an input voltage range starting from 11 V and withstands operating temperatures between -20 °C and 125 °C.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a primary control circuit with an avalanche-rated power MOSFET for flyback converter applications.
• Utilizes current-mode pulse width modulation (PWM) topology to ensure stable regulation.
• Designed for universal-input operation to support increased integration and reliability.

AC DC Converters, Offline Switchers Applications

• Universal-input flyback converters
• Low-power off-line switching power supplies
• Primary-side regulated power circuits

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific datasheet version and ordering suffixes to confirm pinout compatibility and thermal characteristics. Ensure the procurement source provides official documentation confirming RoHS compliance and lead-free status. Cross-reference the manufacturer's latest release notes for any design-in recommendations or application circuit updates prior to finalizing component selection.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated power switching with primary-side control. The built-in avalanche rating simplifies snubber circuit requirements. Consider the 50 kHz switching frequency when designing magnetic components. Verify that the required output current does not exceed the 2.5 A limit under all operating conditions and thermal constraints.

AC DC Converters, Offline Switchers Part Context

This part belongs to the STR-A series of off-line PRC controllers manufactured by Sanken Electric. These devices are engineered specifically for low-to-medium power AC-DC conversion. The series emphasizes high reliability through the integration of robust power MOSFETs with advanced control logic, targeting cost-effective and compact power supply implementations.

AC DC Converters, Offline Switchers Replacement Considerations

The STR-A6151 is a compatible variant within the same family. Other models such as the STR-A6131 and STR-A6159 share similar controller architectures but may differ in specific current ratings or package configurations. Verify electrical parameters before substitution.