Transistor S8050

Transistor S8050 NPN, 0.7A TO-92

Transistors

Reference: TRS8050

Part.No: S8050

€1.00

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The S8050 is a low-voltage, high-current NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Popular for Class-B push-pull audio amplifiers, relay/LED driving and general-purpose switching in Arduino and DIY circuits.

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Description
Product Details

S8050 NPN Transistor - High Current Switching & Push-Pull Audio

The S8050 is a low-voltage, high-current NPN silicon transistor in a TO-92 package, widely used for small-signal amplification and switching. Its relatively high collector current rating compared to other TO-92 parts makes it a favorite for driving relays, small motors, LED strips and Class-B push-pull audio output stages.

Functions & Applications

High Collector Current (0.7A): Handles heavier loads than typical small-signal transistors like BC547.
High DC Current Gain (hFE up to 400): Efficient amplification of weak signals with minimal base drive.
Standard TO-92 Package: Through-hole, easy to solder on breadboards and prototyping boards.
Complementary Pair Available: Pairs directly with the PNP S8550 for push-pull audio and H-bridge designs.
MCU Compatible: Works with 3.3V/5V logic from Arduino, ESP32 and similar boards for switching duties.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	25V
Collector-Base Voltage (Vcbo)	40V
Max Collector Current (Ic)	700mA
Power Dissipation (Pd)	625mW
DC Current Gain (hFE)	85 - 300 (up to 400)
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the complementary PNP transistor for the S8050?
A: The complementary PNP part is the S8550, commonly used together in Class-B push-pull amplifier and H-bridge configurations.

Q: How much current can the S8050 switch?
A: The S8050 can switch up to 700mA (0.7A) continuous collector current, enough for small relays, DC motors, and LED arrays, provided the base current is kept around 5mA to fully saturate the transistor.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: NPN
Transistor Case Style: TO-92

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