AI insight queued
Voltkit is preparing product insight and cross-reference information for this part.
BD677
Click to open full image.
Part #:BD677
Manufacturer:STMicroelectronics
Package:SOT-32-3
Product Type:Darlington Transistors
RoHS: 
Specifications (Specs)
| Manufacturer | STMicroelectronics |
| Part Number | BD677 |
| Product Type | Darlington Transistors |
| RoHS | Yes |
| Package / Case | SOT-32-3 |
| Stock | 3 |
| MOQ | 1 |
| Order Multiple | 1 |
| Packaging | Tube-packed |
| Factory Pack Quantity | 50 |
| Transistor Type | NPN |
| Operating Temperature | - |
| Collector Current (Ic) | 4A |
| Power Dissipation (Pd) | 40W |
| Transition frequency (fT) | - |
| DC current gain (hFE@Vce,Ic) | 750@3V,1.5A |
| Collector-emitter voltage (Vceo) | 60V |
| Collector cut-off current (Icbo@Vcb) | 500uA |
| Collector-emitter saturation voltage (VCE(sat)@Ic,Ib) | [email protected],30mA |
| BMIN (BMIN) | 750 |
| BTYP (BTYP) | 1500 |
| FT (FT) | >10 |
| IB2 (IB2) | 30 |
| IC (IC) | 4A |
| IC1 (IC1) | 1.5 · 1.5A |
| IC2 (IC2) | 1.5A |
| Leakage Current (ISPERR) | 2m |
| Total Power Dissipation (PTOT) | 40 |
| Thermal Resistance (RTH) | 100 |
| Maximum Temperature (TMAX) | 150 |
| TOFF (TOFF) | <8µ |
| TON (TON) | <2µ |
| UC1 (UC1) | 3 |
| UCB (UCB) | 60 |
| UCE (UCE) | 60 |
| UEB (UEB) | 5 |
| USAT (USAT) | 2.5 |
| Voltage Limit (USPERR) | 60 |
Documents & Compliance
Datasheet (PDF)
RoHS:
Alternative Parts & Cross Reference
Cross-reference analysis queued Voltkit will check database-backed and AI-assisted alternatives without delaying this page.
Always verify package, pinout, electrical limits, and datasheets before approving a substitute.
Professional Semiconductor Sourcing
Extensive In-Stock InventoryImmediate stock visibility for active, legacy, and hard-to-find semiconductors.
Authorized Brand AccessVoltkit is an authorized distributor for selected semiconductor brands.
Quality & Traceability SupportRequest date-code review, product photos, traceability documents, or certificate support with your RFQ.
Dedicated Sourcing TeamGet support for target pricing, delivery schedules, BOM sourcing, and alternative-part verification.
Component Summary
BD677 by STMicroelectronics — Darlington Transistors; SOT-32-3 package.
- Manufacturer
- STMicroelectronics
- Product Type
- Darlington Transistors
- Package
- SOT-32-3