BD681 Transistor Datasheet & Specifications
NPN
TO-126
High Power
YFW
VCEO
100V
Ic Max
4A
Pd Max
40W
hFE Gain
750
Quick Reference
The BD681 is a NPN bipolar transistor in a TO-126 package by YFW. This datasheet provides complete specifications including 100V breakdown voltage and 4A continuous collector current. Download the BD681 datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | YFW | Original Manufacturer |
| Package | TO-126 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 100V | Breakdown voltage |
| Ic | 4A | Collector current |
| Pd | 40W | Power dissipation |
| DC Current Gain | 750 | hFE / Beta |
| Frequency | - | Transition speed (fT) |
| VCEsat | 2.5V@1.5A,30mA | Saturation voltage |
| Vebo | - | Emitter-Base voltage |
| Cutoff Current | - | Leakage (ICBO) |
| Temp | -55℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| BD237STU-HXY | NPN | TO-126 | 100V | 15A | 1W |
| BD681 | NPN | TO-126 | 100V | 4A | 2W |