BC638TFR

Single Bipolar Transistors Overview

The onsemi BC638TFR is a PNP epitaxial silicon transistor designed for switching and amplifier applications. It features a maximum collector current of -1 A, a collector-emitter voltage (Vceo) of -45 V, and a collector-base voltage (VCBO) of -45 V. The device operates within a temperature range of -55°C to +150°C junction temperature, with a maximum power dissipation of 1 W. It utilizes a TO-92 through-hole package and offers a minimum DC current gain (hFE) of 25.

Single Bipolar Transistors Feature Summary

• PNP polarity configuration suitable for complementing NPN counterparts in circuit designs
• Epitaxial silicon construction optimized for reliable switching and linear amplification
• Through-hole TO-92 packaging facilitating standard board mounting

Single Bipolar Transistors Applications

• General-purpose switching circuits
• Linear amplifier stages
• Complementary output stages

Single Bipolar Transistors Procurement Notes

Verify the manufacturer part number BC638TFR against official onsemi documentation to confirm specifications. Ensure the suffix 'TFR' corresponds to the required tape and reel packaging format if automated assembly is intended. Cross-reference electrical limits with the specific datasheet revision to avoid discrepancies in absolute maximum ratings.

Single Bipolar Transistors Selection Notes

Select this component when a robust PNP transistor with 1 A continuous current capability is required. The TO-92 package is appropriate for low-to-medium power applications where through-hole mounting is preferred. Verify that the -45 V voltage rating meets the circuit's peak operating requirements and that the thermal management supports the 1 W dissipation limit.

Single Bipolar Transistors Part Context

This component belongs to the BC638 series of general-purpose PNP transistors. It serves as a complementary device to the BC635 NPN transistor, enabling push-pull or differential configurations. The series is engineered for cost-effective solutions in consumer electronics and industrial control systems requiring reliable discrete semiconductor performance.

Single Bipolar Transistors Replacement Considerations

BC638TA: Verified alternative from onsemi in the same series with identical electrical characteristics but different packaging configuration.