2SA2127

Single Bipolar Transistors Overview

The onsemi 2SA2127 is a PNP epitaxial planar silicon transistor designed for switching, lamp, and solenoid drive applications. It features a flange mount package with an isolated case connection, suitable for high-power thermal management. The device supports a maximum collector current of 3 A and a collector-emitter voltage of 50 V. It operates at junction temperatures up to 150 °C with a power dissipation rating of 25 W in the specified mounting configuration.

Single Bipolar Transistors Feature Summary

• Epitaxial planar construction for reliable switching performance
• Flange mount design with isolated case for efficient heat dissipation
• Integrated structure optimized for high-current drive loads

Single Bipolar Transistors Applications

• Solenoid drive circuits
• Lamp driver systems
• General switching applications

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer source, as the component appears associated with Toshiba in some records while listed under onsemi in others. Confirm the exact package variant and electrical specifications against the official datasheet before integration. Ensure compliance with relevant environmental standards such as RoHS if required by the target application.

Single Bipolar Transistors Selection Notes

Select this component for applications requiring robust PNP switching with high current capacity and effective thermal handling via flange mounting. Consider the 50 V voltage rating and 3 A current limit when designing the circuit. Verify that the isolated case feature aligns with the system's grounding and insulation requirements.

Single Bipolar Transistors Part Context

This transistor belongs to the category of discrete bipolar junction transistors (BJTs) intended for power switching. It utilizes epitaxial technology to achieve stable performance in demanding environments. The flange mount package distinguishes it from surface-mount alternatives, providing a direct thermal path to heatsinks for high-power operations.

Single Bipolar Transistors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with similar PNP flange-mount transistors having comparable 50 V and 3 A ratings if replacement is necessary.