Transistor BC324 NPN, 55V, 1A, TO-39

Transistor BC324 NPN, 1A TO-39

Transistors

Reference: TRBC324

Part.No: BC324

€1.20

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The BC324 is an NPN Bipolar Junction Transistor (BJT) in a rugged TO-39 metal-can package, rated for 55V and 1A. Suited for general-purpose switching and small power amplification stages.

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Description
Product Details

BC324 NPN Transistor - 55V/1A Switching in a TO-39 Metal Can

The BC324 is an NPN transistor housed in a TO-39 metal-can package, built to handle up to 1A of collector current at voltages up to 55V. Its metal case offers better heat dissipation than plastic packages of similar size, making it a solid choice for switching relays, motors and low-power loads in hobbyist and repair projects.

Functions & Applications

Metal-Can TO-39 Package: Improved heat dissipation compared to plastic through-hole cases of similar footprint.
55V Collector-Emitter Rating: Enough headroom for typical 12V/24V relay, motor and lamp switching circuits.
1A Collector Current: Handles moderate loads directly without needing a Darlington stage.
Through-Hole Mounting: Easy to solder onto prototyping boards and repair projects.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-39
Collector-Emitter Voltage (Vceo)	55V
Max Collector Current (Ic)	1A
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can the BC324 switch a 1A relay or motor load directly?
A: Yes, the BC324 is rated for up to 1A of collector current, so it can drive such loads directly, provided a flyback diode is used for inductive loads.

Q: Does the TO-39 package need a heatsink for continuous 1A operation?
A: At currents approaching the 1A maximum, adding a small heatsink or clip-on heat spreader to the TO-39 case helps keep the junction temperature safely in range during continuous operation.

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: NPN
Transistor Case Style: TO-39

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