Transistor BC303 PNP, 65V, 1A, 850mW, TO-39

Transistor BC303 PNP, 1A TO-39

Transistors
TRBC303
Part.No: BC303
€1.00
In Stock
Immediate Dispatch

The BC303 is a general-purpose PNP Bipolar Junction Transistor (BJT) in a metal TO-39 can. Rated for 65V and 1A, it suits medium-power switching and amplification stages needing better heat dissipation than a plastic TO-92 part.

 

BC303 PNP Transistor - Metal Can for Medium-Power Switching

The BC303 is a PNP silicon transistor housed in a TO-39 metal can, offering 65V/1A handling with 850mW of power dissipation. It is commonly paired with the complementary NPN BC302 in push-pull and driver circuits where a plastic TO-92 package would run too hot.

Functions & Applications

  • 65V Blocking Voltage: Handles higher supply rails than typical small-signal transistors.
  • 1A Collector Current: Suitable for driving small motors, relays and moderate loads directly.
  • Metal TO-39 Package: Better heat dissipation than plastic TO-92 parts, allowing sustained operation closer to its power limits.
  • PNP Polarity: Useful for high-side switching and complementary push-pull output stages.

Technical Specifications

ParameterValue / Specification
Transistor TypeBJT (Bipolar Junction Transistor)
Polarity / ChannelPNP
Package / CaseTO-39
Collector-Emitter Voltage (Vceo)65V
Max Collector Current (Ic)1A
Power Dissipation (Pd)850mW
Mounting TypeThrough-Hole (THT)

Frequently Asked Questions

Q: What is the complementary NPN transistor for the BC303?
A: The commonly used complementary NPN counterpart is the BC302, sharing similar voltage and current ratings.

Q: Can the BC303 drive a small 12V motor or relay directly?
A: Yes, as long as the load draws less than 1A (Ic) and stays within the 850mW power dissipation limit; add a flyback diode for inductive loads.

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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