BC556B Datasheet & Equivalents
PNP
TO-92
General Purpose
DIOTEC
VCEO
65V
Ic Max
100mA
Pd Max
500mW
hFE Gain
200
Quick Reference
The BC556B is a PNP bipolar junction transistor in a TO-92 package, manufactured by DIOTEC. It supports a breakdown voltage of 65V and continuous collector current of 100mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | DIOTEC | Original Manufacturer |
| Package | TO-92 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 65V | Max breakdown voltage |
| Collector Current (Ic) | 100mA | Max current handling |
| Power Dissipation (Pd) | 500mW | Max thermal limit |
| DC Current Gain (hFE) | 200 | Base signal amplification ratio |
| Transition Frequency (fT) | 150MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | - | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | - | Max emitter-base breakdown |
| Collector Cutoff Current | - | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |