BC337-40 NPN Transistor

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Component Electronic Transistor

Internal Reference: EC-095

BC 337-40 NPN Transistor.

The BC337-40 is an NPN Transistor commonly used in low-power amplifier circuits. The Transistor can provide a maximum gain (hfe) of 630. The BC337 has three-part names, the gain value of BC337-16 is 100 to 250, for BC337-25 it is 160 to 400 and for BC337-40 it is 250 to 630. Apart from the gain value, other parameters are similar for all three part numbers.

The transistor also has a high collector current of up to 800mA and a decent collector-emitter voltage of 45V and the base trigger voltage is only 5V. This makes the transistor suitable to be used in general-purpose switching circuits. Due to its low base trigger voltage, it can be easily controlled by digital circuits like microcontroller circuits. So, if you are looking for a transistor for audio amplification then you might consider the BC337. Also, look into the more commonly used 2N2222 Transistor if you are looking for a replacement for BC337 to switch loads.


BC337-40 NPN Transistor Features:

  • General Purpose NPN Amplifier Transistor
  • Current Gain (hFE), 100 to 630
  • The continuous Collector current (IC) is 800mA
  • Collector-Emitter voltage (VCEO) is 45 V
  • Collector-Base voltage (VCB0) is 50V
  • Emitter Base Voltage (VBE0) is 5V
  • Transition Frequency 100MHz
  • Available in To-92 Package