BCW71_ND87Z

Overview

The BCW71_ND87Z is a general-purpose NPN epitaxial silicon transistor manufactured by onsemi. It is designed for low-level audio amplifier and switching applications. The component utilizes an SMD/SMT mounting style within an SOT-23-3 package configuration. It operates as a single PNP bipolar junction transistor (BJT) with specific voltage ratings including a collector-emitter voltage of -45 V, a collector-base voltage of -45 V, and an emitter-base voltage of -5 V. The device supports a maximum DC collector current of 0.5 A and features a high DC current gain up to 630. It functions reliably across a temperature range from -55 C to +150 C.

Feature Summary

• Epitaxial silicon construction for stable performance in general-purpose applications
• Designed for low-level audio amplification and efficient signal switching
• Single configuration optimized for compact surface-mount integration

Applications

• Low-level audio amplification circuits
• General-purpose signal switching
• Small-signal processing stages

Procurement Notes

Verify the exact part number against official manufacturer documentation to ensure compatibility with design specifications. Confirm that the ordering suffix matches the required packaging format. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement decisions. Ensure the supplier provides valid traceability data for quality assurance purposes.

Selection Notes

Select this component when a small-form-factor NPN transistor is required for audio or switching tasks. Consider the SOT-23-3 package constraints regarding thermal dissipation and board space. Evaluate the maximum current and voltage limits against circuit demands to prevent overstress. Verify the operating temperature range suitability for the intended environmental conditions.

Part Context

This component belongs to the broader category of bipolar junction transistors produced by onsemi. It serves as a standard solution for discrete semiconductor needs in consumer electronics and industrial equipment. The product line emphasizes reliability and consistent electrical characteristics for mass production environments.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. Ensure any alternative maintains identical pinout and package dimensions. Verify matching electrical parameters such as voltage ratings and current capabilities before implementation.