TIP42B Datasheet & Equivalents
PNP
TO-220
General Purpose
onsemi
VCEO
80V
Ic Max
6A
Pd Max
2W
hFE Gain
30
Quick Reference
The TIP42B is a PNP bipolar junction transistor in a TO-220 package, manufactured by onsemi. It supports a breakdown voltage of 80V and continuous collector current of 6A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | onsemi | Original Manufacturer |
| Package | TO-220 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 80V | Max breakdown voltage |
| Collector Current (Ic) | 6A | Max current handling |
| Power Dissipation (Pd) | 2W | Max thermal limit |
| DC Current Gain (hFE) | 30 | Base signal amplification ratio |
| Transition Frequency (fT) | 3MHz | 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 |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| BD538 | PNP | TO-220 | 80V | 8A | 40 | 50W | SPTECH 📄 PDF |
| D45H11 | PNP | TO-220 | 80V | 10A | 40 | 50W | ST 📄 PDF |
| D45H11G | PNP | TO-220 | 80V | 10A | 40 | 70W | onsemi 📄 PDF |
| 2N6491 | PNP | TO-220 | 80V | 15A | 150 | 75W | SPTECH 📄 PDF |
| TIP42C | PNP | TO-220 | 100V | 6A | 30 | 2W | JSCJ 📄 PDF |
| TIP42C | PNP | TO-220 | 100V | 6A | 30 | 2W | luJing 📄 PDF |
| TIP42C | PNP | TO-220 | 100V | 6A | 15 | 65W | JSMSEMI 📄 PDF |
| TIP42C | PNP | TO-220 | 100V | 6A | 75 | 65W | BLUE ROCKET 📄 PDF |
| TIP42C | PNP | TO-220 | 100V | 6A | 160 | 65W | OSEN 📄 PDF |
| 2SA1010 | PNP | TO-220 | 100V | 7A | 200 | 40W | SPTECH 📄 PDF |
| BD650 | PNP | TO-220 | 100V | 8A | 750 | 62.5W | SPTECH 📄 PDF |
| TIP107 | PNP | TO-220 | 100V | 8A | 1000 | 2W | ST 📄 PDF |
| BDX34C | PNP | TO-220 | 100V | 10A | 750 | 70W | SPTECH 📄 PDF |
| BDW94CFP | PNP | TO-220 | 100V | 12A | 750 | 33W | ST 📄 PDF |
| D44VH10 | PNP | TO-220 | 100V | 15A | 35 | 83W | SPTECH 📄 PDF |
| D45VH10G | PNP | TO-220 | 100V | 15A | 35 | 83W | onsemi 📄 PDF |
| BD912 | PNP | TO-220 | 100V | 15A | 250 | 90W | SPTECH 📄 PDF |
| MJE15031 | PNP | TO-220 | 150V | 8A | 40 | 50W | SPTECH |
| MJE15031G | PNP | TO-220 | 150V | 8A | 20 | 50W | onsemi 📄 PDF |