STMicroelectronics · Discrete semiconductors
BD677A
TRANS NPN DARL 60V 4A SOT32-3
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BD677A specifications
Recorded source facts. Missing values are kept explicit; verify the exact manufacturer document before design approval.
| Manufacturer | STMicroelectronics |
|---|---|
| Ordering code | BD677A |
| Family | Discrete semiconductors |
| Package | TO-225AA, TO-126-3 |
| Product Status | Active |
| Transistor Type | NPN - Darlington |
| Current - Collector (Ic) (Max) | 4 A |
| Voltage - Collector Emitter Breakdown (Max) | 60 V |
| Vce Saturation (Max) @ Ib, Ic | 2.8V @ 40mA, 2A |
| Current - Collector Cutoff (Max) | 500µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 750 @ 2A, 3V |
| Power - Max | 40 W |
| Frequency - Transition | Not provided in source |
| Operating Temperature | 150°C (TJ) |
| Mounting Type | Through Hole |
| Package / Case | TO-225AA, TO-126-3 |
| Supplier Device Package | SOT-32-3 |
Documents and evidence
BD677A ↗Before sourcing BD677A
- Identify the firmware and board baseline
- Check flash, RAM and required peripherals
- Review pin assignment and supply limits
- Keep the full temperature and package suffix
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