STK621-061A-E

Overview

The STK621-061A-E is a three-phase inverter hybrid IC manufactured by Sanyo Semicon Device. It integrates power output stages and control logic for driving brushless DC motors or AC induction motors. The device typically operates with a supply voltage up to 450V and supports continuous currents around 10A, depending on thermal conditions. It features built-in protection mechanisms including overcurrent, overvoltage, and thermal shutdown to ensure reliable operation in motor drive applications.

Feature Summary

• Integrated three-phase inverter bridge for direct motor connection
• Built-in protective circuits for system reliability
• Hybrid construction combining power and control elements

Applications

• Brushless DC motor drives
• AC induction motor control systems
• Industrial inverter modules

Procurement Notes

Verify the specific suffix 'A' against official Sanyo or ON Semiconductor datasheets, as standard listings often reference the base STK621-061-E. Confirm pinout compatibility and thermal requirements before integration. Ensure the source document explicitly defines the electrical characteristics for this variant to avoid substitution errors.

Selection Notes

Select this component for applications requiring a compact, integrated solution for three-phase motor control. Consider the thermal dissipation capabilities of the package when designing the heat sink. Verify that the input signal levels match the control logic voltage range of the driving microcontroller or driver circuit.

Part Context

This part belongs to the STK621 series of inverter hybrid ICs originally developed by Sanyo Electric. Following corporate restructuring, these products are now managed under ON Semiconductor. The series is widely used in white goods and industrial equipment for efficient motor speed control and energy savings.

Replacement Considerations

Check for direct equivalents such as the STK621-061-E. Cross-reference pinouts and electrical ratings with other three-phase inverter hybrids from manufacturers like Sanken or Fuji Electric if sourcing from alternative suppliers.