STMicroelectronics BD678 BJTs
PNP Darlington Transistor 60V 4A SOT-32
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
BD678
Detailed Description
PNP Darlington Transistor 60V 4A SOT-32
Package
TO-225AA, TO-126-3
Lifecycle Status
Active
Datasheet
BD678 Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics BD678 BJTs technical specifications.
General
Package / Case
TO-225AA, TO-126-3
Mounting Type
Through Hole
Operating Temperature
150°C (TJ)
Lifecycle Status
Active
Description
TRANS PNP DARL 60V 4A SOT-32-3
Detailed Description
Bipolar (BJT) Transistor PNP - Darlington 60 V 4 A 40 W Through Hole SOT-32-3
Current Collector Cutoff Max
500µA
Dc Current Gain Hfe Min IC Vce
750 @ 1.5A, 3V
Power Max
40 W
Transistor Type
PNP - Darlington
Alternate Parts Comparison (BD678 vs BD140-16 vs BD237 vs BD139-16)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) |
| Lifecycle Status | Active | Active | Active | Active |
| Current Collector Cutoff Max | 500µA | 100nA (ICBO) | 100µA (ICBO) | 100nA (ICBO) |
| Current Collector IC Max | 4 A | 1.5 A | 2 A | 1.5 A |
| Dc Current Gain Hfe Min IC Vce | 750 @ 1.5A, 3V | 100 @ 150mA, 2V | 25 @ 1A, 2V | 100 @ 150mA, 2V |
| Description | TRANS PNP DARL 60V 4A SOT-32-3 | TRANS PNP 80V 1.5A SOT-32 | TRANS NPN 80V 2A SOT-32-3 | TRANS NPN 80V 1.5A SOT-32-3 |
| Detailed Description | Bipolar (BJT) Transistor PNP - Darlington 60 V 4 A 40 W Through Hole SOT-32-3 | Bipolar (BJT) Transistor PNP 80 V 1.5 A 1.25 W Through Hole SOT-32 | Bipolar (BJT) Transistor NPN 80 V 2 A 25 W Through Hole SOT-32-3 | Bipolar (BJT) Transistor NPN 80 V 1.5 A 1.25 W Through Hole SOT-32-3 |
| Power Max | 40 W | 1.25 W | 25 W | 1.25 W |
| Transistor Type | PNP - Darlington | PNP | NPN | NPN |
| Vce Saturation Max Ib IC | 2.5V @ 30mA, 1.5A | 500mV @ 50mA, 500mA | 600mV @ 100mA, 1A | 500mV @ 50mA, 500mA |
| Action |
More Parts in BJTs
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.