Transistor BC638 PNP, 1A TO-92

Transistor BC638 PNP, 1A TO-92

Transistor BC638 PNP, 1A TO-92

Transistor BC638 PNP, 1A TO-92

Transistor BC638 PNP, 1A TO-92

Transistors

Reference: TRBC638

Part.No: BC638

€0.60

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The BC638 is a PNP Bipolar Junction Transistor (BJT) in a TO-92 package, rated for -60V and 1A continuous collector current. Suited for moderately high voltage switching and driving loads such as relays and motors.

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Description
Product Details

BC638 PNP Transistor - 60V, 1A Switching in TO-92

The BC638 is a PNP bipolar transistor in a TO-92 package, capable of switching up to -60V and 1A of continuous collector current, making it a good fit for moderately high voltage switching circuits where a compact through-hole PNP device is needed.

Functions & Applications

Higher Voltage Rating: -60V Vce allows use in circuits beyond the range of standard small-signal PNP transistors.
1A Collector Current: Enough headroom to drive small motors, relays and higher-current loads directly.
Compact TO-92 Package: Through-hole design, easy to solder and prototype with on breadboards.
100 MHz Transition Frequency: Fast enough for general-purpose switching and low-frequency amplification tasks.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-92
Collector-Emitter Voltage (Vce)	-60V
Max Collector Current (Ic)	-1A
Power Dissipation (Pd)	1W
DC Current Gain (hFE)	160 max
Transition Frequency (fT)	100MHz
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the complementary NPN transistor for the BC638?
A: The complementary NPN part is the BC637, sharing similar voltage and current ratings.

Q: Can the BC638 directly drive a small 12V relay or motor?
A: Yes, as long as the load current stays below 1A (Ic) and a flyback diode is used for inductive loads like relay coils or motors.

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-92

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