2SB1587

Single Bipolar Transistors Overview

The Sanken Electric USA Inc. 2SB1587 is a silicon PNP epitaxial planar transistor designed for audio, series regulator, and general-purpose applications. It serves as the complement to the 2SD2438 NPN device. The component features an absolute maximum collector-emitter voltage of -150 V and a continuous collector current rating of -8 A. Maximum power dissipation reaches 75 W at a case temperature of 25°C. The DC current gain (hFE) has a minimum specification of 5000, with specific rank options available. The transition frequency is typically 65 MHz.

Single Bipolar Transistors Feature Summary

• High DC current gain capability suitable for sensitive amplification stages
• Complementary pairing with the 2SD2438 NPN transistor for push-pull configurations
• Robust thermal performance supporting high-power dissipation in regulated circuits

Single Bipolar Transistors Applications

• Audio amplifier output stages
• Series voltage regulators
• General-purpose switching applications

Single Bipolar Transistors Procurement Notes

Verify the hFE rank suffix (O, P, or Y) required for your circuit's gain specifications before ordering. Confirm that the FM100 (TO-3PF) package dimensions align with your heatsinking infrastructure. Ensure the supplier provides documentation confirming the part is the genuine Sanken Electric USA Inc. manufactured component to avoid counterfeit replacements.

Single Bipolar Transistors Selection Notes

Select this component when high current drive and substantial voltage handling are required in a PNP configuration. The extremely high hFE minimizes base drive requirements, simplifying driver stage design. Consider the TO-3PF package size and mounting requirements for thermal management. Verify that the -150 V breakdown voltage meets the peak transient demands of the target application.

Single Bipolar Transistors Part Context

This device belongs to the family of high-power bipolar junction transistors intended for robust linear and switching operations. It is engineered to handle significant load currents while maintaining stable operation under varying thermal conditions. The complementary nature to the 2SD2438 allows for matched performance in balanced bridge or push-pull topologies commonly found in professional audio and industrial power supplies.

Single Bipolar Transistors Replacement Considerations

The datasheet explicitly identifies the 2SD2438 as the complementary NPN counterpart. No other direct substitute part numbers are documented in the provided source material.