| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
13,250 pcs
|
13250 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
4,500 pcs
|
4500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
6 pcs
|
6 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Current | |
| DC Current Gain (hFE) (Min) @ Ic, Vce | |
| Mounting Type | |
| Operating Temperature | |
| Power | |
| Supplier Device Package | |
| Tape & Reel | |
| Transistor Type | |
| Vce Saturation (Max) @ Ib, Ic | |
| Voltage |
The BD677A is an NPN Darlington transistor from STMicroelectronics designed for medium-power switching and amplification applications. It features a collector-emitter voltage rating of 60V and a continuous collector current of 4A, with a power dissipation of 40W.
The Darlington configuration provides high DC current gain, with a minimum hFE of 750 at 2A and 3V. The maximum collector-emitter saturation voltage is 2.8V at 40mA base current and 2A collector current. The device is rated for operation up to 150°C junction temperature.
The transistor is housed in a through-hole SOT-32-3 package, also known as TO-225AA or TO-126-3, making it suitable for PCB mounting. The package is designed for efficient heat dissipation in power applications.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.20 | $1.20 |
| 10+ | $0.86 | $0.86 |
| 100+ | $0.54 | $0.54 |
| 500+ | $0.37 | $0.37 |
| 1,000+ | $0.31 | $0.31 |
| 2,000+ | $0.28 | $0.28 |
| 4,000+ | $0.24 | $0.24 |
| 12,000+ | $0.22 | $0.22 |
| 24,000+ | $0.19 | $0.19 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The BD677A has a collector-emitter voltage (Vceo) rating of 60V.
The BD677A is available in through-hole SOT-32-3 package, also designated as TO-225AA or TO-126-3.
The maximum operating junction temperature is 150°C.
The BD677A is listed as RoHS3 compliant, but this status is unverified.
The minimum DC current gain (hFE) is 750 at 2A collector current and 3V collector-emitter voltage.