BC857BT Transistor Datasheet & Specifications
PNP
SOT-523
General Purpose
TECH PUBLIC
VCEO
45V
Ic Max
100mA
Pd Max
265mW
hFE Gain
475
Quick Reference
The BC857BT is a PNP bipolar transistor in a SOT-523 package by TECH PUBLIC. This datasheet provides complete specifications including 45V breakdown voltage and 100mA continuous collector current. Download the BC857BT datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | TECH PUBLIC | Original Manufacturer |
| Package | SOT-523 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 45V | Breakdown voltage |
| Ic | 100mA | Collector current |
| Pd | 265mW | Power dissipation |
| DC Current Gain | 475 | hFE / Beta |
| Frequency | 100MHz | Transition speed (fT) |
| VCEsat | 650mV | Saturation voltage |
| Vebo | 5V | Emitter-Base voltage |
| Cutoff Current | 15nA | Leakage (ICBO) |
| Temp | -55℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| 2DA1774R-7-F | PNP | SOT-523 | 50V | 150mA | 150mW |
| BC857CT-7-F | PNP | SOT-523 | 45V | 100mA | 150mW |
| MMBT2907AT-7-F | PNP | SOT-523 | 60V | 600mA | 150mW |
| DTA143EE | PNP | SOT-523 | 50V | 100mA | 150mW |
| 2SA1774-R | PNP | SOT-523 | 50V | 150mA | 150mW |
| MMBT5401T | PNP | SOT-523 | 150V | 600mA | 200mW |
| MMBT5401T | PNP | SOT-523 | 150V | 600mA | 200mW |
| CMUT2907A TR PBFREE | PNP | SOT-523 | 60V | 1.2A | 250mW |
| MMBTSA1774E | PNP | SOT-523 | 50V | 150mA | 150mW |
| MMBT5401T | PNP | SOT-523 | 150V | 600mA | 200mW |