Transistor BC161 PNP, 1A TO-39

Transistor BC161 PNP, 1A TO-39

Transistors

Reference: TRBC161

Part.No: BC161

€1.00

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The BC161 is a general-purpose PNP Bipolar Junction Transistor (BJT) in a metal TO-39 package, rated for 60V and 1A. Suited for driver stages, audio output and medium-power switching applications.

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Description
Product Details

BC161 PNP Driver Transistor - 60V, 1A, TO-39 Metal Can

The BC161 is a PNP bipolar transistor housed in a rugged TO-39 metal can, designed for driver and low-to-medium power output stages up to 60V and 1A. It's the classic complementary PNP counterpart to the BC141 NPN, making the pair a common choice for push-pull audio and power driver circuits.

Functions & Applications

60V Blocking Voltage: Enough headroom for driver stages in audio and general power circuits.
1A Continuous Current: Handles moderate load currents beyond typical small-signal transistors.
Metal TO-39 Case: Offers better heat dissipation than plastic small-signal packages.
Complementary Pairing: Matches directly with the BC141 NPN for push-pull driver designs.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-39
Collector-Emitter Voltage (Vceo)	60V
Max Collector Current (Ic)	1A
Power Dissipation (Pd)	3.7W
Transition Frequency (fT)	50MHz
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the complementary NPN transistor for the BC161?
A: The complementary NPN part is the BC141, also in a TO-39 package, commonly used together in push-pull driver stages.

Q: How much power can the BC161 handle before needing a heatsink?
A: It is rated for 3.7W dissipation at the case; for continuous loads near this limit, a small heatsink or good airflow is recommended.

Notes

This is a legacy/classic TO-39 metal-can transistor, still valued for repair work and vintage audio/driver circuit designs.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: PNP
Transistor Case Style: TO-39

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