BUL128
TRANS NPN 400V 4A TO220Manufacturer: STMicroelectronics
Categories: Single Bipolar Transistors
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STMicroelectronics BUL128 is an NPN bipolar junction transistor (BJT) designed for high-voltage switching applications. This component features a maximum collector-emitter breakdown voltage of 400V and a continuous collector current rating of 4A, with a maximum power dissipation of 70W. The device exhibits a saturation voltage of 500mV at 1A collector current and 4A collector current, with a minimum DC current gain (hFE) of 14 at 2A collector current and 5V collector-emitter voltage. Packaged in a TO-220-3 through-hole configuration, the BUL128 is suitable for use in power supply circuits, lighting control, and general-purpose high-voltage switching. It operates reliably at junction temperatures up to 150°C. The collector cutoff current is a maximum of 100µA.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDownload Free CAD Model:
Technical Details:
| Packaging | Tube |
| Package / Case | TO-220-3 |
| Mounting Type | Through Hole |
| Transistor Type | NPN |
| Operating Temperature | 150°C (TJ) |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 1A, 4A |
| Current - Collector Cutoff (Max) | 100µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 14 @ 2A, 5V |
| Frequency - Transition | - |
| Supplier Device Package | TO-220 |
| Current - Collector (Ic) (Max) | 4 A |
| Voltage - Collector Emitter Breakdown (Max) | 400 V |
| Power - Max | 70 W |
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