BD242B Transistor Datasheet & Specifications
PNP
TO-220
General Purpose
ST
VCEO
80V
Ic Max
3A
Pd Max
2W
hFE Gain
25
Quick Reference
The BD242B is a PNP bipolar transistor in a TO-220 package by ST. This datasheet provides complete specifications including 80V breakdown voltage and 3A continuous collector current. Download the BD242B datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | ST | Original Manufacturer |
| Package | TO-220 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 80V | Breakdown voltage |
| Ic | 3A | Collector current |
| Pd | 2W | Power dissipation |
| DC Current Gain | 25 | hFE / Beta |
| Frequency | - | Transition speed (fT) |
| VCEsat | 1.2V | Saturation voltage |
| Vebo | - | Emitter-Base voltage |
| Cutoff Current | 300uA | Leakage (ICBO) |
| Temp | -65℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| MJE15035G | PNP | TO-220 | 350V | 4A | 50W |
| TIP42C-HXY | PNP | TO-220 | 100V | 3A | 2W |
| TIP42C | PNP | TO-220 | 100V | 6A | 65W |
| D45H11 | PNP | TO-220 | 80V | 10A | 50W |
| TIP42C | PNP | TO-220 | 100V | 6A | 65W |
| TIP127 | PNP | TO-220 | 100V | 5A | 2W |
| TIP32CL-TA3-T | PNP | TO-220 | 100V | 3A | 2W |
| MJE5852G | PNP | TO-220 | 400V | 8A | 80W |
| MJE15031 | PNP | TO-220 | 150V | 8A | 50W |
| TIP127 | PNP | TO-220 | 100V | 5A | 2W |