Skip to main content

STMicroelectronics BD678 BJTs

PNP Darlington Transistor 60V 4A SOT-32

2,460 ActiveSTMicroelectronicsTO-225AA, TO-126-3$0.24
BD678 TO-225AA, TO-126-3 package illustration

Same model may have multiple batches, images only for reference.

BD678
Manufacturer
Part Number (MPN)
BD678
Detailed Description
PNP Darlington Transistor 60V 4A SOT-32
Package
TO-225AA, TO-126-3
Lifecycle Status
Active
Datasheet
PDF BD678 Datasheet
Quick Jump:
Ready to order?In stock and ready to ship.
Competitive Pricing
Fast & Reliable Delivery
Quality Assured

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
Current Collector Cutoff Max
500µA
Dc Current Gain Hfe Min IC Vce
750 @ 1.5A, 3V
Power Max
40 W
Transistor Type
PNP - Darlington
Current Collector IC Max
4 A
Voltage Collector Emitter Breakdown Max
60 V

Related Parts Comparison (BD678 vs BD140-16 vs BD237 vs BD139-16)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / CaseTO-225AA, TO-126-3TO-225AA, TO-126-3TO-225AA, TO-126-3TO-225AA, TO-126-3
Mounting TypeThrough HoleThrough HoleThrough HoleThrough Hole
Operating Temperature150°C (TJ)150°C (TJ)150°C (TJ)150°C (TJ)
Lifecycle StatusActiveActiveActiveActive
Current Collector Cutoff Max500µA100nA (ICBO)100µA (ICBO)100nA (ICBO)
Current Collector IC Max4 A1.5 A2 A1.5 A
Dc Current Gain Hfe Min IC Vce750 @ 1.5A, 3V100 @ 150mA, 2V25 @ 1A, 2V100 @ 150mA, 2V
Power Max40 W1.25 W25 W1.25 W
Transistor TypePNP - DarlingtonPNPNPNNPN
Vce Saturation Max Ib IC2.5V @ 30mA, 1.5A500mV @ 50mA, 500mA600mV @ 100mA, 1A500mV @ 50mA, 500mA
Voltage Collector Emitter Breakdown Max60 V80 V80 V80 V
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.