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BC109 NPN Transistor
Br 15.00
- The BC109 is a general-purpose NPN bipolar junction transistor designed for switching and amplification in low-power applications.
- Type Designator: BC109
- Material of Transistor: Si
- Polarity: NPN
- Max Collector Current(IC): 100mA
- Max Collector-Emitter Voltage (VCE): 20V
- Max Collector-Base Voltage (VCB): 30V
- Max Emitter-Base Voltage (VBE): 5V
- Max Collector Dissipation (Pc): 0.3W
- Max Transition Frequency (fT): 100 MHz
- Minimum & Maximum DC Current Gain (hFE): 200 to 800
- Package: TO-92
- BC109 NPN General Purpose Transistor TO-92 (20V, 0.1A)
- PNP Complementary: PNP Complementary of BC109 is BC179
- The exact match transistor for BC109 is BC108. BC107 will also work but the only difference is its maximum DC current gain is 450 but in most cases, it will not make a big difference. Other nearest possible substitutes are A158C, BCY65X. If you can’t find these equivalents then you can also try the TO-92 Plastic package equivalents which are BC546, BC547, BC548, BC549, BC560.
Applications of BC109 NPN General Purpose Transistor:
- Audio amplifier Circuits
- Any Signal Amplification
- Audio Preamplifier
- Darlington pair
- RF circuits
- Switching loads under 100mA
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