MMBTA55 Datasheet & Equivalents
PNP
SOT-23
General Purpose
R+O
VCEO
60V
Ic Max
500mA
Pd Max
225mW
hFE Gain
400
Quick Reference
The MMBTA55 is a PNP bipolar junction transistor in a SOT-23 package, manufactured by R+O. It supports a breakdown voltage of 60V and continuous collector current of 500mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | R+O | Original Manufacturer |
| Package | SOT-23 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 60V | Max breakdown voltage |
| Collector Current (Ic) | 500mA | Max current handling |
| Power Dissipation (Pd) | 225mW | Max thermal limit |
| DC Current Gain (hFE) | 400 | Base signal amplification ratio |
| Transition Frequency (fT) | 50MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 250mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 4V | 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 |
|---|---|---|---|---|---|---|---|
| MMBTA55(RANGE:100-400) | PNP | SOT-23 | 60V | 500mA | 100 | 225mW | JSCJ 📄 PDF |
| MMBTA55-JSM | PNP | SOT-23 | 60V | 500mA | 100 | 300mW | JSMSEMI 📄 PDF |
| MMBTA55LT1G | PNP | SOT-23 | 60V | 500mA | 100 | 225mW | onsemi 📄 PDF |
| MMBTA55_R1_00001 | PNP | SOT-23 | 60V | 500mA | 100 | 225mW | PANJIT 📄 PDF |
| BCV46 | PNP | SOT-23 | 60V | 500mA | 10000 | 250mW | Nexperia 📄 PDF |
| 215 | PNP | SOT-23 | 60V | 600mA | 400 | 225mW | TDSEMIC 📄 PDF |
| MMBT2907 2F | PNP | SOT-23 | 60V | 600mA | 400 | 225mW | TDSEMIC 📄 PDF |
| MMBT2907A(2F) | PNP | SOT-23 | 60V | 600mA | 300 | 250mW | MOT 📄 PDF |
| 2907/2F | PNP | SOT-23 | 60V | 600mA | 300 | 250mW | FOSAN 📄 PDF |
| MMBT2907A-6AF | PNP | SOT-23 | 60V | 600mA | 300 | 225mW | PANJIT 📄 PDF |
| MMBT2907A_R1_00301 | PNP | SOT-23 | 60V | 600mA | 300 | 250mW | Nexperia 📄 PDF |
| PMBT2907A | PNP | SOT-23 | 60V | 600mA | 300 | 250mW | GOODWORK 📄 PDF |
| 215 | PNP | SOT-23 | 60V | 600mA | 300 | 250mW | Wild Goose 📄 PDF |
| MMBT2907A | PNP | SOT-23 | 60V | 600mA | 300 | 300mW | FUXINSEMI 📄 PDF |
| MMBT2907A | PNP | SOT-23 | 60V | 600mA | 300 | 225mW | XCH 📄 PDF |
| MMBT2907A | PNP | SOT-23 | 60V | 600mA | 300 | 300mW | Shikues 📄 PDF |
| MMBT2907A | PNP | SOT-23 | 60V | 600mA | 100 | 300mW | Comchip 📄 PDF |
| MMBT2907A | PNP | SOT-23 | 60V | 600mA | 100 | 350mW | Kodenshi AUK 📄 PDF |
| AMMBT2907A-HF | PNP | SOT-23 | 60V | 600mA | 100 | 250mW | JUXING 📄 PDF |
| KBT2907AC | PNP | SOT-23 | 60V | 600mA | 100 | 250mW | JSCJ 📄 PDF |