Introduction

The S8550 is a popular PNP bipolar junction transistor in a compact SOT-23 surface mount package, making it ideal for space-constrained PCBs in mobile devices, IoT modules, and handheld devices. It is widely used in amplification, switching, and signal conditioning applications due to its high current gain, low saturation voltage drop, and reliable performance.

Key Features

  • Type: PNP BJT
  • Package: SOT-23
  • Collector-Base Breakdown Voltage(Vcbo):-40V
  • Collector-Emitter Voltage (Vceo): -25V
  • Collector Current (Ic): -500mA
  • Power Dissipation: 300mW
  • Transition Frequency: 150MHz (Minimum)

Advantages

  • Compact SOT-23 package – Saves PCB space
  • High current gain – Improves amplification efficiency
  • Low saturation voltage – Enhances switching performance
  • Wide operating range – Suitable for various circuit designs
  • Cost-effective & widely available – Easy to source

S8550 Datasheet

S8550Download

Typical Applications

  • Signal amplification (audio, RF, and general-purpose circuits)
  • Switching circuits (relay drivers, LED drivers, logic level shifting)
  • Complementary push-pull configurations
  • Voltage regulators and inverters
  • Oscillators and pulse generators

Product Line

For more product details, please visit our official website:

https://en.semiware.com/small-signal-transis/s8550

About semiware
Semiware has a comprehensive product lineup of circuit protection device products. The company leverages its technology in the semiconductor field and application background in end products to serve customers in the electronics, automotive and industrial markets. For more information, please visit semiware official website: https://en.semiware.com/