BUJ403A,127

Single Bipolar Transistors Overview

The BUJ403A,127 is a high-voltage, high-speed planar-passivated NPN power switching transistor manufactured by WeEn Semiconductors. It is housed in a TO-220AB through-hole package with three pins. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 550 V and a collector-base voltage (VCBO) of 1200 V. The device supports a continuous collector current (IC) of 6 A and a total power dissipation (Ptot) of 100 W. It features a maximum junction temperature (Tj) of 150 °C and is designed for industrial applications.

Single Bipolar Transistors Feature Summary

• High-speed planar-passivated NPN construction optimized for rapid switching operations
• High voltage capability with 1200 V collector-base rating for robust performance
• Industrial qualification suitable for demanding electronic environments

Single Bipolar Transistors Applications

• High frequency electronic lighting ballast systems
• Power converters and inverters
• Switching regulators
• Motor control systems

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix to ensure the correct packing configuration matches your assembly requirements. Confirm RoHS compliance status and lead-free conversion dates against current regulatory standards before finalizing procurement. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and traceability.

Single Bipolar Transistors Selection Notes

Select this component when designing circuits requiring high voltage isolation and fast switching speeds. Ensure the thermal management solution can handle the 100 W power dissipation at the specified operating temperatures. Verify that the drive circuitry can support the required base currents for the 6 A collector current capability without exceeding safe operating area limits.

Single Bipolar Transistors Part Context

This transistor belongs to the BUJ series of high-voltage power transistors from WeEn Semiconductors. The series is engineered for efficiency in high-frequency power conversion applications. The TO-220 package provides a balance of thermal performance and mechanical stability for through-hole mounting on standard printed circuit boards.

Single Bipolar Transistors Replacement Considerations

Check for direct substitutes such as the BUJ403A/DG variant. Verify pinout compatibility and electrical parameter equivalence before substitution.