OSA1943 Datasheet & Equivalents
NPN
TO-3P
High Power
OSEN
VCEO
230V
Ic Max
15A
Pd Max
150W
hFE Gain
160
Quick Reference
The OSA1943 is a NPN bipolar junction transistor in a TO-3P package, manufactured by OSEN. 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 | OSEN | 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) | 160 | Base signal amplification ratio |
| Transition Frequency (fT) | 10MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 1.2V | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 7V | Max emitter-base breakdown |
| Collector Cutoff Current | 1uA | Leakage current when OFF |
| Operating Temp | - | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| 2SA1943N-OSEN | NPN | TO-3P | 230V | 15A | 160 | 150W | OSEN 📄 PDF |
| 2SC4029 | NPN | TO-3P | 230V | 15A | 160 | 150W | SPTECH 📄 PDF |
| 2SC5200 | NPN | TO-3P | 230V | 15A | 160 | 150W | OSEN 📄 PDF |
| 2SC5200L-R-B-T3L-T | NPN | TO-3P | 230V | 15A | 160 | 150W | UTC 📄 PDF |
| 2SC5200N-OSEN | NPN | TO-3P | 230V | 15A | 160 | 150W | OSEN 📄 PDF |
| WGC5200 | NPN | TO-3P | 230V | 15A | 160 | 150W | Wild Goose 📄 PDF |
| 2SA1943 | NPN | TO-3P | 230V | 15A | 160 | 150W | OSEN 📄 PDF |
| MN1526 | NPN | TO-3P | 230V | 15A | 160 | 150W | OSEN 📄 PDF |
| MP1526 | NPN | TO-3P | 230V | 15A | 160 | 150W | OSEN 📄 PDF |
| NJW0302G | NPN | TO-3P | 230V | 15A | 160 | 150W | OSEN 📄 PDF |
| MJW3281A | NPN | TO-3P | 230V | 15A | 200 | 200W | SPTECH 📄 PDF |
| TTC5200(Q) | NPN | TO-3P | 230V | 15A | 80 | 150W | TOSHIBA 📄 PDF |
| NJW0281G | NPN | TO-3P | 230V | 15A | 80 | 150W | Minos 📄 PDF |
| 2SC5200-O(Q) | NPN | TO-3P | 230V | 15A | 55 | 150W | TOSHIBA 📄 PDF |
| 2SC5200-O-JSM | NPN | TO-3P | 230V | 16A | 160 | 180W | JSMSEMI 📄 PDF |
| 2SA1943 | NPN | TO-3P | 230V | 17A | 70 | 180W | Minos 📄 PDF |
| NJW3281G | NPN | TO-3P | 250V | 15A | 150 | 200W | SPTECH 📄 PDF |
| NJW0281G | NPN | TO-3P | 250V | 15A | 150 | 150W | SPTECH 📄 PDF |
| NJW0281G | NPN | TO-3P | 250V | 15A | 75 | 150W | onsemi 📄 PDF |
| MJL1302AG | NPN | TO-3P | 250V | 16A | 160 | 200W | OSEN 📄 PDF |