Images are representative; refer to the datasheet for complete specifications.
S8550, TO-92 Transistor
FE34
About S8550, TO-92 Transistor
S8550, a PNP-type BJT transistor commonly used in circuits requiring low voltage and high current. Thanks to its compact TO-92 package, it is readily preferred in both hobby projects and professional electronic designs. With collector current up to 700 mA and collector-emitter voltage rating up to 20 V, it is ideal for audio amplification circuits, push-pull output stages, and general-purpose small-signal applications.
The S8550 provides clean and balanced output in Class B audio amplifiers thanks to its high current gain (hFE 85–300 range). It is a popular PNP solution frequently chosen in electronic circuits due to its low cost, reliability, and wide range of applications.
Technical Specifications
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Transistor Type: PNP BJT
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Collector Current (IC): 700 mA
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Collector-Emitter Voltage (VCEO): 20 V
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Base-Emitter Voltage (VBE): -5 V
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Current Gain (hFE): 85 – 300
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Package Type: TO-92
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Application Class: Suitable for Class B push-pull outputs
Application Areas
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Audio amplification circuits
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Class B and push-pull amplifier stages
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Small-signal and low-power driver circuits
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General-purpose circuits requiring high gain
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Electronic hobby projects and low-voltage applications