BD318 Datasheet & Equivalents
PNP
TO-3
High Power
SPTECH
VCEO
100V
Ic Max
16A
Pd Max
200W
hFE Gain
25
Quick Reference
The BD318 is a PNP bipolar junction transistor in a TO-3 package, manufactured by SPTECH. It supports a breakdown voltage of 100V and continuous collector current of 16A. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | SPTECH | Original Manufacturer |
| Package | TO-3 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 100V | Max breakdown voltage |
| Collector Current (Ic) | 16A | Max current handling |
| Power Dissipation (Pd) | 200W | Max thermal limit |
| DC Current Gain (hFE) | 25 | Base signal amplification ratio |
| Transition Frequency (fT) | 1MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 1V | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 7V | Max emitter-base breakdown |
| Collector Cutoff Current | 1mA | Leakage current when OFF |
| Operating Temp | - | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| MJ4502G | PNP | TO-3 | 100V | 30A | 25 | 200W | onsemi 📄 PDF |
| MJ15004G-JSM | PNP | TO-3 | 140V | 20A | 150 | 250W | JSMSEMI 📄 PDF |
| MJ15022 | PNP | TO-3 | 200V | 16A | 60 | 250W | SPTECH 📄 PDF |
| MJ15023 | PNP | TO-3 | 200V | 16A | 60 | 250W | SPTECH 📄 PDF |
| MJ15023G-JSM | PNP | TO-3 | 200V | 16A | 60 | 250W | JSMSEMI 📄 PDF |
| MJ21193G | PNP | TO-3 | 250V | 16A | 25 | 250W | onsemi 📄 PDF |
| MJ15025G | PNP | TO-3 | 250V | 16A | 15 | 250W | onsemi 📄 PDF |
| MJ15025 | PNP | TO-3 | 250V | 16A | 60 | 250W | SPTECH 📄 PDF |
| MJ15025-JSM | PNP | TO-3 | 250V | 16A | 60 | 250W | JSMSEMI 📄 PDF |