Ready to onboard?
Are you ready to join DistyParts and
grow your business?
| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
5,669 pcs
|
5669 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 BUL381D is an NPN bipolar junction transistor manufactured by STMicroelectronics. It is designed for high-voltage switching and amplification applications, with a maximum collector-emitter voltage of 400V and a maximum collector current of 5A. The device can dissipate up to 70W of power, making it suitable for power management circuits.
Key electrical characteristics include a minimum DC current gain (hFE) of 8 at a test condition of 2A collector current and 5V collector-emitter voltage, and a maximum collector-emitter saturation voltage of 1.1V at a base current of 750mA and collector current of 3A. The maximum junction operating temperature is 150°C.
The BUL381D is housed in a TO-220-3 package with through-hole mounting, which provides good thermal performance and ease of assembly in power electronics designs. The supplier device package is TO-220, a widely used industry-standard package for power transistors.
This transistor is suitable for use in power supply circuits, motor control, and other high-voltage switching applications where its voltage and current ratings are required. Its TO-220 package allows for effective heat sinking in designs that demand reliable thermal management.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.13 | $2.13 |
| 10+ | $1.36 | $1.36 |
| 100+ | $0.65 | $0.65 |
| 1,000+ | $0.55 | $0.55 |
| 10,000+ | $0.53 | $0.53 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum collector-emitter voltage (Vceo) is 400V.
The maximum collector current (Ic) is 5A.
The maximum power dissipation (Pd) is 70W.
The BUL381D is available in a TO-220-3 package with through-hole mounting.
The maximum junction operating temperature is 150°C.
The minimum DC current gain (hFE) is 8 at a collector current of 2A and collector-emitter voltage of 5V.
The maximum collector-emitter saturation voltage is 1.1V at a base current of 750mA and collector current of 3A.