2SA1943-O(Q) Datasheet & Equivalents
PNP
TO-3P
High Power
TOSHIBA
VCEO
230V
Ic Max
15A
Pd Max
150W
hFE Gain
80
Quick Reference
The 2SA1943-O(Q) is a PNP bipolar junction transistor in a TO-3P package, manufactured by TOSHIBA. It supports a breakdown voltage of 230V and continuous collector current of 15A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | TOSHIBA | Original Manufacturer |
| Package | TO-3P | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 230V | Max breakdown voltage |
| Collector Current (Ic) | 15A | Max current handling |
| Power Dissipation (Pd) | 150W | Max thermal limit |
| DC Current Gain (hFE) | 80 | Base signal amplification ratio |
| Transition Frequency (fT) | 30MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 1.5V | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 5V | Max emitter-base breakdown |
| Collector Cutoff Current | 5uA | Leakage current when OFF |
| Operating Temp | - | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| TTA1943(Q) | PNP | TO-3P | 230V | 15A | 80 | 150W | TOSHIBA 📄 PDF |
| 2SA1962 | PNP | TO-3P | 230V | 15A | 160 | 130W | SPTECH 📄 PDF |
| 2SA1986 | PNP | TO-3P | 230V | 15A | 160 | 150W | SPTECH 📄 PDF |
| WGA1943 | PNP | TO-3P | 230V | 15A | 160 | 100W | Wild Goose 📄 PDF |
| WGTTC5200 | PNP | TO-3P | 230V | 15A | 160 | 150W | Wild Goose 📄 PDF |
| 2SA1943 | PNP | TO-3P | 230V | 15A | 160 | 150W | SPTECH 📄 PDF |
| NJW0302G | PNP | TO-3P | 250V | 15A | 75 | 150W | onsemi 📄 PDF |
| MJW0302A | PNP | TO-3P | 250V | 15A | 150 | 150W | SPTECH 📄 PDF |
| NJW1302G | PNP | TO-3P | 250V | 15A | 150 | 200W | onsemi 📄 PDF |
| NJW0302G | PNP | TO-3P | 250V | 15A | 150 | 150W | SPTECH 📄 PDF |
| NJW0302G-JSM | PNP | TO-3P | 250V | 15A | 160 | 150W | JSMSEMI 📄 PDF |
| NJW21193G | PNP | TO-3P | 250V | 16A | 20 | 200W | onsemi 📄 PDF |
| 2SA1962OTU | PNP | TO-3P | 250V | 17A | 55 | 130W | onsemi 📄 PDF |
| MP1526 | PNP | TO-3P | 260V | 15A | 140 | 150W | SPTECH 📄 PDF |
| WGC3320 | PNP | TO-3P | 400V | 15A | 10 | 80W | Wild Goose 📄 PDF |