S8550W Datasheet & Equivalents
PNP
SOT-323
General Purpose
XCH
VCEO
25V
Ic Max
500mA
Pd Max
300mW
hFE Gain
400
Quick Reference
The S8550W is a PNP bipolar junction transistor in a SOT-323 package, manufactured by XCH. It supports a breakdown voltage of 25V and continuous collector current of 500mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | XCH | Original Manufacturer |
| Package | SOT-323 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 25V | Max breakdown voltage |
| Collector Current (Ic) | 500mA | Max current handling |
| Power Dissipation (Pd) | 300mW | Max thermal limit |
| DC Current Gain (hFE) | 400 | Base signal amplification ratio |
| Transition Frequency (fT) | 150MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 600mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 100nA | Leakage current when OFF |
| Operating Temp | - | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| 2SAR502U3T106 | PNP | SOT-323 | 30V | 500mA | 200 | 200mW | ROHM 📄 PDF |
| 2SA1588-Y | PNP | SOT-323 | 30V | 500mA | 25 | 100mW | TOSHIBA 📄 PDF |
| LF | PNP | SOT-323 | 30V | 500mA | 10000 | 200mW | DIODES 📄 PDF |
| MMSTA63-7-F | PNP | SOT-323 | 32V | 500mA | 120 | 200mW | ROHM 📄 PDF |
| 2SA1577T106Q | PNP | SOT-323 | 32V | 500mA | 120 | 200mW | ROHM 📄 PDF |
| 2SA1577T106R | PNP | SOT-323 | 40V | 600mA | 300 | 200mW | MSKSEMI 📄 PDF |
| MMST4403 | PNP | SOT-323 | 40V | 600mA | 30 | 150mW | LRC 📄 PDF |
| S-LMBT4403WT1G | PNP | SOT-323 | 40V | 1A | 300 | 400mW | DIODES 📄 PDF |
| DSS5140U-7 | PNP | SOT-323 | 40V | 1A | 300 | 350mW | Nexperia 📄 PDF |
| PBSS5140U | PNP | SOT-323 | 45V | 500mA | 250 | 200mW | Nexperia 📄 PDF |
| 115 | PNP | SOT-323 | 45V | 500mA | 250 | 250mW | LGE 📄 PDF |
| BC807-40W | PNP | SOT-323 | 45V | 500mA | 600 | 200mW | YANGJIE 📄 PDF |
| 115 | PNP | SOT-323 | 45V | 500mA | 600 | 200mW | FUXINSEMI 📄 PDF |
| BC807-40W | PNP | SOT-323 | 45V | 500mA | 100 | 200mW | Nexperia 📄 PDF |
| BC807-40WQ | PNP | SOT-323 | 45V | 500mA | 100 | 200mW | JSCJ 📄 PDF |
| BC807-40W | PNP | SOT-323 | 45V | 500mA | 100 | 290mW | Nexperia 📄 PDF |
| BC807-16LWX | PNP | SOT-323 | 60V | 600mA | 300 | 100mW | KEC 📄 PDF |
| BC807W | PNP | SOT-323 | 60V | 600mA | 100 | 225mW | PANJIT 📄 PDF |
| BC807W | PNP | SOT-323 | 60V | 600mA | 100 | 200mW | DIODES 📄 PDF |
| 115 | PNP | SOT-323 | 60V | 600mA | 100 | 200mW | DIODES 📄 PDF |