BC337
SKU: R3-F-4-14
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Description:
The BC337 is a general-purpose NPN bipolar junction transistor (BJT) designed for switching and amplification in medium current applications. It offers higher current handling than small-signal transistors like BC547, making it suitable for driving relays, motors, and other moderate loads.

Specifications:

  • Type: NPN BJT Transistor
  • Collector-Emitter Voltage (Vce): 45V
  • Collector-Base Voltage (Vcb): 50V
  • Emitter-Base Voltage (Veb): 5V
  • Continuous Collector Current (Ic): up to 800mA
  • Power Dissipation: ~625mW
  • Current Gain (hFE): 100 – 630 (varies by gain group)
  • Transition Frequency: ~100 MHz
  • Package: TO-92

Features:

  • Higher current capability than BC547
  • Suitable for switching and amplification
  • Good gain characteristics
  • Compact TO-92 package
  • Reliable and widely used

Applications:

  • Relay and motor driver circuits
  • LED drivers and load switching
  • Signal amplification
  • Complementary pair with BC327 (PNP)
  • Arduino and embedded systems

Pin Configuration (Flat side facing you):

  • Collector (C)
  • Base (B)
  • Emitter (E)

Important Note:

  • Suitable for medium current loads (up to ~800mA)
  • Use base resistor for safe operation
  • Ensure proper heat management at higher currents

Package Includes:

  • 1 × BC337 Transistor

Disclaimer:
No warranty. No guarantee. No return. No replacement.

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