Transistor - BC108, TO-18 case, NPN
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BC108 NPN silicon transistors. The BC108 is a popular NPN choice for fuzz pedals and other effects such as vintage silicon Fuzz Face builds and Big Muff clones.
Type | hFE (IC=2mA, VCE=5V) | hfe (IC=2mA, VCE=5V, f=1KHz) |
BC108A | 110-220 | 125-260 |
BC108B | 200-450 | 240-500 |
BC108C | 420-800 | 450-900 |
- NPN polarity
- Collector emitter breakdown voltage 25V
- Collector base breakdown voltage 30V
- Collector current 200mA
- Power 0.75W
- Transition frequency 150MHz
- TO-18 case
- Weight 0.35g
Pinout (bottom view):

SKU:
P-QBC108X
Item ID:
045553
Element:
Matched Pair:
Package:
Polarity:
Series:
Type:
Type | Our Part Number |
---|---|
BC108A | P-QBC108A |
BC108B | P-QBC108B |
BC108C | P-QBC108C |
Collector Base Voltage | BC108C version | P-QBC108C | 30 V |
Collector Current Continuous | BC108C version | P-QBC108C | 200 mA |
Collector Cutoff Current | BC108C version | P-QBC108C | <15 nA |
Collector Emitter Voltage | BC108C version | P-QBC108C | >25 V |
DC Current Gain | BC108A version | P-QBC108A | 110-220 |
BC108B version | P-QBC108B | 200-450 | |
BC108C version | P-QBC108C | 420-800 | |
Emitter Base Voltage | BC108C version | P-QBC108C | >5 V |
Input Impedance | BC108A version | P-QBC108A | 1.6-4.5 KΩ |
BC108B version | P-QBC108B | 3.2-8.5 KΩ | |
BC108C version | P-QBC108C | 6.0-15 KΩ | |
Max. Collector Base Voltage | BC108A version | P-QBC108A | 30 V |
BC108B version | P-QBC108B | 30 V | |
Max. Collector Current Continuous | BC108A version | P-QBC108A | 200 mA |
BC108B version | P-QBC108B | 200 mA | |
Max. Collector Emitter Voltage | BC108A version | P-QBC108A | 25 V |
BC108B version | P-QBC108B | 25 V | |
Max. Emitter Base Voltage | BC108A version | P-QBC108A | 5 V |
BC108B version | P-QBC108B | 5 V | |
Max. Operating and Storage Junction Temperature Range | BC108A version | P-QBC108A | - 65 to +200 ºC |
BC108B version | P-QBC108B | - 65 to +200 ºC | |
Max. Power Dissipation @ Ta=25ºC | BC108A version | P-QBC108A | 300 mW |
BC108B version | P-QBC108B | 300 mW | |
Max. Power Dissipation @ Tc=25ºC | BC108A version | P-QBC108A | 750 mW |
BC108B version | P-QBC108B | 750 mW | |
Noise Figure | BC108A version | P-QBC108A | 10 dB |
BC108B version | P-QBC108B | 10 dB | |
Operating and Storage Junction Temperature Range | BC108C version | P-QBC108C | - 65 to +200 ºC |
Output Admittance | BC108A version | P-QBC108A | 30 umhos max. |
BC108B version | P-QBC108B | 60 umhos max. | |
BC108C version | P-QBC108C | 110 umhos max. | |
Power Dissipation @ Ta=25ºC | BC108C version | P-QBC108C | 300 mW |
Power Dissipation @ Tc=25ºC | BC108C version | P-QBC108C | 750 mW |
Packaging Dimensions | 0.472 in. × 0.221 in. × 0.221 in. | |
Weight (Packaging) | 0.003 lbs. |
P-QBC108A - BC108A version | DC Current Gain | 110-220 |
Input Impedance | 1.6-4.5 KΩ | |
Max. Collector Base Voltage | 30 V | |
Max. Collector Current Continuous | 200 mA | |
Max. Collector Emitter Voltage | 25 V | |
Max. Emitter Base Voltage | 5 V | |
Max. Operating and Storage Junction Temperature Range | - 65 to +200 ºC | |
Max. Power Dissipation @ Ta=25ºC | 300 mW | |
Max. Power Dissipation @ Tc=25ºC | 750 mW | |
Noise Figure | 10 dB | |
Output Admittance | 30 umhos max. | |
P-QBC108B - BC108B version | DC Current Gain | 200-450 |
Input Impedance | 3.2-8.5 KΩ | |
Max. Collector Base Voltage | 30 V | |
Max. Collector Current Continuous | 200 mA | |
Max. Collector Emitter Voltage | 25 V | |
Max. Emitter Base Voltage | 5 V | |
Max. Operating and Storage Junction Temperature Range | - 65 to +200 ºC | |
Max. Power Dissipation @ Ta=25ºC | 300 mW | |
Max. Power Dissipation @ Tc=25ºC | 750 mW | |
Noise Figure | 10 dB | |
Output Admittance | 60 umhos max. | |
P-QBC108C - BC108C version | Collector Base Voltage | 30 V |
Collector Current Continuous | 200 mA | |
Collector Cutoff Current | <15 nA | |
Collector Emitter Voltage | >25 V | |
DC Current Gain | 420-800 | |
Emitter Base Voltage | >5 V | |
Input Impedance | 6.0-15 KΩ | |
Operating and Storage Junction Temperature Range | - 65 to +200 ºC | |
Output Admittance | 110 umhos max. | |
Power Dissipation @ Ta=25ºC | 300 mW | |
Power Dissipation @ Tc=25ºC | 750 mW |
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Product Reviews
Fast delivery on this sought after transistor which has huge amounts of gain. Looking forward to modding out my projects. Thanks!