BD535J

Overview

The BD535J is an NPN silicon power transistor manufactured by Fairchild Semiconductor. It features a maximum collector current of 8 A and a collector-emitter voltage rating of 60 V. The device is housed in a TO-220AB flange mount package with plastic/epoxy body material. It has a minimum DC current gain (hFE) of 15 and supports a maximum operating temperature of 150 °C. The component is designed for through-hole mounting and connects the case to the collector terminal.

Feature Summary

• NPN polarity configuration for single-element switching applications
• Flange mount construction facilitating direct heatsink attachment
• Collector-connected case design for efficient thermal dissipation

Applications

• General purpose power switching circuits
• High current load control systems
• Power amplifier output stages

Procurement Notes

Verify the manufacturer designation, as the BD535J part number is also associated with Renesas Electronics in public databases. Confirm the specific datasheet source matches the intended Fairchild Semiconductor origin before procurement to ensure accurate parameter alignment and supply chain traceability.

Selection Notes

Select this component when an NPN power transistor with an 8 A continuous collector current and 60 V breakdown voltage is required. Ensure the application utilizes a flange mount topology compatible with the TO-220AB package dimensions and that the thermal management strategy accommodates the specified 150 °C maximum junction temperature limit.

Part Context

This component belongs to the family of discrete bipolar power transistors designed for medium-to-high power handling. It serves as a fundamental active element in linear and switching power electronics, providing current amplification and voltage blocking capabilities within standard industrial and consumer electronic circuit architectures.