S9014 Transistor

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  • S9014 NPN Small Signal Transistor is designed for pre-amplifier, low level & low noise applications.
  • Transistor Type: NPN
  • Max Collector Current(IC): 100mA
  • Max Collector-Emitter Voltage (VCE): 45V
  • Max Collector-Base Voltage (VCB): 50V
  • Max Emitter-Base Voltage (VEBO): 5V
  • Max Collector Dissipation (Pc): 400 miliWatt
  • Max Transition Frequency (fT): 150 MHz
  • Minimum & Maximum DC Current Gain (hFE): 60 – 1000
  • Max Storage & Operating temperature Should Be: -55 to +150 Centigrade
  • S9014 is Complementary to SS9015
  • S9014 is a widely used NPN silicon BJT transistor. This is a low noise high gain transistor, the maximum DC current gain of the transistor is 1000. The high gain and low noise feature makes this transistor ideal to use in audio pre amplification or to amplify a very low level of audio to high level with noise filtration. It can also be used to amplify any type of small or low level signal to high level.
  • It can also perform well in RF circuits under 150MHz. The max collector dissipation of 400mW also makes it capable to drive a small 2 to 3 inch 4 Ohms or 8Ohms speaker. On the other hand the max collector current of the transistor is 100mA due to which it can be used to drive loads under 100mA. For example LEDs, relays, high power transistors, ICs etc.


  • The SS9014 is designed to use for low noise and hi gain audio preamplifier circuits but it can also be used to amplify any type of low gain signals. Moreover it can also be used as audio amplifier or in audio amplifier stages. But it is also capable to use as a switch for driving load of 45V and 100mA. The transistor can be used or wired as a normal BJT transistor.


  • Audio Preamplifiers
  • Audio Amplifier Stages
  • Signal Amplification
  • Sensor Circuits
  • Switching loads under 100mA
  • Darlington Pairs

Alternative NPN Transistors

  • BC549, BC636, BC639BC547, 2N2369, 2N30552N39042N39062SC52002N5551 (These are the nearest possible equivalent or replacement transistors for S9014. The pin configuration of these transistors may be different from S9014 therefore it is suggested to check pin configuration of the transistor you are using in your circuit.)
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