BD135-10-BP

Overview

The BD135-10-BP is a power NPN bipolar junction transistor manufactured by Micro Commercial Components. It features a collector current rating of 1.5 A and a collector-emitter breakdown voltage of 45 V. The device utilizes a TO-126 plastic flange mount package with three pins. It operates at a maximum junction temperature of 150 °C and has a total power dissipation capability of 13 W. The component is RoHS compliant and lead-free.

Feature Summary

• NPN silicon construction for high-power switching applications
• Flange mount package design facilitating thermal management
• Integrated isolation between the collector and the mounting surface

Applications

• General-purpose power amplification circuits
• Linear regulator designs requiring moderate current handling
• Driver stages in audio equipment

Procurement Notes

Verify the manufacturer designation matches Micro Commercial Components to distinguish from other producers using identical part numbers. Confirm the suffix -BP indicates the specific packaging configuration provided by this vendor. Ensure the component meets required environmental standards such as RoHS compliance before integration into final assemblies.

Selection Notes

Select this component when a single NPN transistor capable of handling 1.5 A continuous current is required. The 45 V breakdown voltage suits low-to-medium voltage supply rails. The TO-126 package allows for direct heatsink mounting, making it suitable for designs where thermal resistance must be minimized without complex PCB copper pours.

Part Context

This transistor belongs to the BD135 series of medium-power NPN transistors. It is commonly paired with its PNP counterpart, the BD136, in complementary push-pull output stages. The BD135-10 variant specifically denotes the 45 V voltage rating within the broader family of available voltage grades.

Replacement Considerations

Direct substitutes include the BD135-10 from Continental Device India or generic equivalents labeled simply as BD135-10. Verify that replacement units maintain the same TO-126 pinout and electrical ratings.