Transistor BC323 NPN, 60V, 5A, 0.8W, TO-39

Power Transistor BC323 NPN, 5A TO-39

Transistors

Reference: TRBC323

Part.No: BC323

€1.75

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The BC323 is an NPN Bipolar Junction Transistor (BJT) in a rugged TO-39 metal can package, rated for up to 5A collector current at 60V. Suited for switching and driver stages that need more current handling than a small-signal TO-92 part can offer.

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Description
Product Details

BC323 NPN Transistor - Higher-Current Switching in a TO-39 Can

The BC323 is an NPN BJT housed in a TO-39 metal can, built to handle higher collector currents than typical small-signal plastic-package transistors. It fits well in driver stages, relay/solenoid switching and general power-handling roles where a TO-92 part would be undersized.

Functions & Applications

Metal TO-39 Case: Better heat spreading than plastic TO-92 packages for the same footprint.
High Collector Current Rating: Up to 5A, suitable for driving relays, solenoids and small motors.
60V Collector-Emitter Rating: Comfortable headroom for 12V/24V industrial and automotive circuits.
NPN Switching: Straightforward high-side/low-side switching in driver and power-control stages.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-39
Collector-Emitter Voltage (Vceo)	60V
Max Collector Current (Ic)	5A
Power Dissipation (Pd)	0.8W
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can the BC323 really run continuously at 5A?
A: The 5A figure is a peak/absolute maximum rating. With only 0.8W power dissipation in the TO-39 case, sustained operation near 5A requires a heatsink and low Vce (saturation) to stay within the safe thermal limit.

Q: Is there a PNP complementary version of the BC323?
A: Yes, the BC324 is the PNP complement with matching voltage and current ratings in the same TO-39 style package.

Notes

Rated for up to 5A, but the low 0.8W power dissipation of the TO-39 case means sustained high-current operation requires a heatsink and careful thermal design - it is not suited to continuous full-current use without one.

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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