2SB1123 Datasheet & Equivalents
PNP
SOT-89
General Purpose
Shikues
VCEO
25V
Ic Max
1.5A
Pd Max
1W
hFE Gain
140
Quick Reference
The 2SB1123 is a PNP bipolar junction transistor in a SOT-89 package, manufactured by Shikues. 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 | Shikues | Original Manufacturer |
| Package | SOT-89 | 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) | 1W | Max thermal limit |
| DC Current Gain (hFE) | 140 | Base signal amplification ratio |
| Transition Frequency (fT) | 200MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 500mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 6V | 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 |
|---|---|---|---|---|---|---|---|
| PXT8550 | PNP | SOT-89 | 25V | 1.5A | 120 | 500mW | TWGMC 📄 PDF |
| 2SB799 | PNP | SOT-89 | 25V | 1.5A | 200 | 1W | Shikues 📄 PDF |
| PXT8550(RANGE:200-350) | PNP | SOT-89 | 25V | 1.5A | 200 | 500mW | JSCJ 📄 PDF |
| PXT8550 | PNP | SOT-89 | 25V | 1.5A | 200 | 500mW | MSKSEMI 📄 PDF |
| PXT8550 | PNP | SOT-89 | 25V | 1.5A | 45 | 625mW | Shikues 📄 PDF |
| 2SA1213Y | PNP | SOT-89 | 25V | 1.5A | 240 | 1W | Shikues 📄 PDF |
| PXT8550 | PNP | SOT-89 | 25V | 1.5A | 350 | 1W | YFW 📄 PDF |
| PXT8550-JSM | PNP | SOT-89 | 25V | 1.5A | 400 | 500mW | JSMSEMI 📄 PDF |
| SS8550(SOT89-3L) | PNP | SOT-89 | 25V | 1.5A | 400 | 500mW | HXY MOSFET 📄 PDF |
| PXT8550 | PNP | SOT-89 | 25V | 1.5A | 400 | 500mW | HT(Shenzhen J... 📄 PDF |
| FCX789ATA | PNP | SOT-89 | 25V | 3A | 300 | 2W | DIODES 📄 PDF |
| 2SA1203Y | PNP | SOT-89 | 30V | 1.5A | 160 | 1W | Shikues 📄 PDF |
| 2SAR512PFRAT100 | PNP | SOT-89 | 30V | 2A | 200 | 2W | ROHM 📄 PDF |
| 2SB772SG-P-AB3-R | PNP | SOT-89 | 30V | 3A | 160 | 500mW | UTC 📄 PDF |
| 2SB772SQ | PNP | SOT-89 | 30V | 3A | 160 | 10W | JUXING 📄 PDF |
| B772 | PNP | SOT-89 | 30V | 3A | 160 | 500mW | DOWO 📄 PDF |
| B772 | PNP | SOT-89 | 30V | 3A | 160 | 500mW | Guangdong Hot... 📄 PDF |
| B772(RANGE:160-320) | PNP | SOT-89 | 30V | 3A | 160 | 500mW | JSCJ 📄 PDF |
| PBSS5330X | PNP | SOT-89 | 30V | 3A | 175 | 1.6W | Nexperia 📄 PDF |
| 115 | PNP | SOT-89 | 30V | 3A | 200 | 500mW | JSCJ 📄 PDF |