SS8550 Datasheet & Equivalents
PNP
SOT-23
General Purpose
Chao He
VCEO
25V
Ic Max
1.5A
Pd Max
300mW
hFE Gain
-
Quick Reference
The SS8550 is a PNP bipolar junction transistor in a SOT-23 package, manufactured by Chao He. It supports a breakdown voltage of 25V and continuous collector current of 1.5A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | Chao He | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 25V | Max breakdown voltage |
| Collector Current (Ic) | 1.5A | Max current handling |
| Power Dissipation (Pd) | 300mW | Max thermal limit |
| DC Current Gain (hFE) | - | Base signal amplification ratio |
| Transition Frequency (fT) | 100MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 500mV@800mA,80mA | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 100nA | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| L8550HQLT1G | PNP | SOT-23 | 25V | 1.5A | 100 | 225mW | LRC 📄 PDF |
| AD-SS8550-H | PNP | SOT-23 | 25V | 1.5A | 120 | 300mW | JSCJ 📄 PDF |
| MMSS8550-L-TP | PNP | SOT-23 | 25V | 1.5A | 120 | 625mW | MCC 📄 PDF |
| SS8550(RANGE:120-200) | PNP | SOT-23 | 25V | 1.5A | 120 | 300mW | JSCJ 📄 PDF |
| SS8550 Y2 | PNP | SOT-23 | 25V | 1.5A | 120 | 300mW | JUXING 📄 PDF |
| S-L8550HQLT1G | PNP | SOT-23 | 25V | 1.5A | 150 | 225mW | LRC 📄 PDF |
| 8550M-D | PNP | SOT-23 | 25V | 1.5A | 160 | 625mW | BLUE ROCKET 📄 PDF |
| HE8550G-D-AE3-R | PNP | SOT-23 | 25V | 1.5A | 160 | 350mW | UTC 📄 PDF |
| MMBT8550D(1.5A)-Y2 | PNP | SOT-23 | 25V | 1.5A | 160 | 200mW | ST(Semtech) 📄 PDF |
| MPS8550S-D-RTK/P | PNP | SOT-23 | 25V | 1.5A | 160 | 350mW | KEC 📄 PDF |
| SS8550 Y2(RANGE:200-350) | PNP | SOT-23 | 25V | 1.5A | 200 | 300mW | JSCJ 📄 PDF |
| SS8550(RANGE:300-400) | PNP | SOT-23 | 25V | 1.5A | 300 | 300mW | JSCJ 📄 PDF |
| B772 | PNP | SOT-23 | 25V | 1.5A | 320 | 350mW | YFW 📄 PDF |
| MMSS8550-H-HXY | PNP | SOT-23 | 25V | 1.5A | 350 | 300mW | HXY MOSFET 📄 PDF |
| MPS8550S-D-HXY | PNP | SOT-23 | 25V | 1.5A | 350 | 300mW | HXY MOSFET 📄 PDF |
| SS8550 Y2 0.52 | PNP | SOT-23 | 25V | 1.5A | 400 | 200mW | TDSEMIC 📄 PDF |
| SS8550-6AF | PNP | SOT-23 | 25V | 1.5A | 400 | 300mW | FOSAN 📄 PDF |
| SS8550 Y2 | PNP | SOT-23 | 25V | 1.5A | 400 | 200mW | TDSEMIC 📄 PDF |
| FMMT591-JSM | PNP | SOT-23 | 25V | 1.8A | 350 | 300mW | JSMSEMI 📄 PDF |
| 2SB1695KT146 | PNP | SOT-23 | 30V | 1.5A | 270 | 200mW | ROHM 📄 PDF |