Transistor - BC238B, Silicon, TO-92 case, NPN
BC238B NPN transistor in a TO-92 package. The BC238 is used in a variety of vintage pedals such as the Schaller Fuzz, a version of the Brian May treble boost,and later Jen / Tonebender fuzz pedals. The BC238B is a variant of the BC108B and works well in other classic fuzz pedals such as Fuzz Face and Big Muff builds.
Pinout (bottom view):

SKU:
P-QBC238B
Item ID:
046722
Element:
Matched Pair:
Package:
Polarity:
Series:
Type:
Collector Capacitance | 5 pF | ||
Element | Si | ||
Max. Collector-Base Voltage | 30 V | ||
Max. Collector-Emitter Voltage | 20 V | ||
Max. Collector Current | 0.1 A | ||
Max. Collector Power Dissipation | 0.3 W | ||
Max. Emitter-Base Voltage | 5 V | ||
Max. Operating Junction Temperature | 125 °C | ||
Package | TO92 | ||
Polarity | NPN | ||
Transition Frequency | 150 MHz | ||
Typ. Forward Current Transfer Ratio | 180-460 |
Packaging Dimensions | 0.714 in. × 0.179 in. × 0.134 in. | ||
Weight (Packaging) | 0.0004 lbs. |
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