Transistor BC338

Transistor BC338 NPN, 0.8A TO-92

Transistors

Reference: TRBC338

Part.No: BC338

€0.50

In Stock

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The BC338 is a high-current NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Designed for medium-power switching and amplification applications, it delivers up to 800mA collector current with excellent linearity and stability.

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Description
Product Details

BC338 Medium-Power NPN Transistor – High Current Switching & Amplification

The BC338 is a robust NPN transistor engineered for applications requiring higher collector currents than small-signal parts. With a maximum Ic of 800mA and Vceo rating of 20V, it bridges the gap between low-power signal transistors and heavy-duty power devices, making it ideal for motor drivers, power amplifiers, and moderate current-switching circuits.

Functions & Applications

High Collector Current (Ic): Up to 800mA enables driving relays, buzzers, LEDs in parallel and small motors directly.
Moderate Voltage Rating: Vceo of 20V suitable for standard 12V and 24V automotive and industrial circuits.
Robust Power Dissipation: 625mW rating ensures stable operation even with significant load currents.
Standard TO-92 Package: Through-hole design, easy to prototype and breadboard, compatible with DIY and educational setups.
Fast Switching: Suitable for both linear amplification and digital switching in microcontroller applications.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	20V
Max Collector Current (Ic)	800mA
Power Dissipation (Pd)	625mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can the BC338 drive a 5V relay directly from an Arduino pin?
A: No. While the BC338 can handle relay currents, an Arduino GPIO pin outputs max 40mA, insufficient to saturate the transistor. Use a 10kΩ base resistor and a dedicated 5V power supply, or use a MOSFET with lower gate-drive requirements.

Q: What is the complementary PNP transistor for BC338?
A: The complementary PNP is the BC328, offering matched electrical characteristics for push-pull amplifier stages.

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-92

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