BC559

$0.04

Description：TRANS PNP 30V 0.1A TO-92-3
Series：-

SKU:bf5bfa3211d2 Category: Single Bipolar Transistors Brand: Fairchild Semiconductor

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Product introduction

BC559 is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is TRANS PNP 30V 0.1A TO-92-3. Review the specifications below when checking this part for your BOM.

Single Bipolar Transistors specifications for BC559

Description：TRANS PNP 30V 0.1A TO-92-3
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
Transistor Type：PNP
Current - Collector (Ic) (Max)：100 mA
Voltage - Collector Emitter Breakdown (Max)：30 V
Vce Saturation (Max) @ Ib, Ic：650mV @ 5mA, 100mA
Current - Collector Cutoff (Max)：15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce：110 @ 2mA, 5V
Power - Max：500 mW
Frequency - Transition：150MHz
Operating Temperature：150°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92-3
Grade：-
Qualification：-

Single Bipolar Transistors datasheet and documents for BC559

BC559

Single Bipolar Transistors Overview

The Fairchild Semiconductor BC559 is a PNP general-purpose epitaxial silicon transistor designed for switching and amplifier applications. It features a collector-emitter breakdown voltage of 45V and a maximum continuous collector current of 0.1A. The device utilizes a TO-92 lead-free package with three pins. Key electrical characteristics include a minimum DC current gain (hFE) of 110 at specified test conditions, a transition frequency of 150MHz, and a maximum power dissipation of 500mW. It operates within a junction temperature range up to 150°C.

Single Bipolar Transistors Feature Summary

Designed for low-noise performance suitable for sensitive signal processing
Epitaxial silicon construction ensures stable switching and amplification capabilities
Complements the NPN BC549 transistor for matched circuit designs

Single Bipolar Transistors Applications

General-purpose signal amplification circuits
Electronic switching applications
Low-noise audio pre-amplifier stages

Single Bipolar Transistors Procurement Notes

Verify the specific manufacturer source, as multiple entities produce this component. Confirm RoHS compliance status, as legacy versions may differ from modern lead-free specifications. Ensure the TO-92 package variant matches the required pinout configuration for the target PCB layout before finalizing procurement.

Single Bipolar Transistors Selection Notes

Select the BC559 when a PNP transistor with moderate voltage handling and low noise characteristics is required. It serves as the direct complement to the BC549 NPN series. Consider the 45V collector-emitter rating and 150MHz transition frequency against circuit requirements to ensure adequate performance margins for the intended frequency and voltage operations.

Single Bipolar Transistors Part Context

The BC559 belongs to the widely used BC55x family of PNP transistors, which includes variants like the BC556, BC557, and BC558. These components share similar physical packaging but vary in voltage ratings and noise specifications. The BC559 specifically targets low-noise applications within this lineup, distinguishing it from higher-voltage or standard-gain counterparts.