BC558A-AP

Single Bipolar Transistors Overview

The BC558A-AP is a PNP silicon epitaxial planar transistor manufactured by Micro Commercial Components (MCC). It is housed in a TO-92 plastic through-hole package. The device features a collector-emitter breakdown voltage of -30 V and a maximum continuous collector current of -100 mA. Total power dissipation is rated at 625 mW. The 'A' suffix indicates a minimum DC current gain (hFE) range of 110 to 220, tested at VCE = -5V and IC = -10mA.

Single Bipolar Transistors Feature Summary

• PNP polarity configuration for complementary circuit designs
• Lead-free finish compliant with RoHS standards
• Epoxy case meets UL 94 V-0 flammability rating

Single Bipolar Transistors Applications

• General purpose amplifier circuits
• Electronic switching applications
• Complementary pairs with NPN transistors

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer datasheet for the BC558A-AP to confirm exact hFE binning limits and thermal resistance values. Ensure the ordering suffix matches the required lead-free and halogen-free specifications. Cross-reference pinout configurations between different manufacturers if substituting into existing PCB layouts.

Single Bipolar Transistors Selection Notes

Select this component when a low-gain PNP transistor is required for precise biasing or linear amplification. The A-grade hFE specification provides tighter tolerance than standard B or C grades. Consider the TO-92 package constraints for thermal management in high-power environments.

Single Bipolar Transistors Part Context

This part belongs to the BC558 series of general-purpose PNP transistors. It serves as the PNP counterpart to the BC557 series. The BC558 family is widely used in consumer electronics and industrial control systems requiring small-signal processing.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include BC558B, BC558C, and generic equivalents like 2SA1015 or MPSA13, provided hFE requirements are met.