For Reference Only
| Part Number | BUL128D-B |
| LIXINC Part # | BUL128D-B |
| Manufacturer | STMicroelectronics |
| Category | Discrete Semiconductor › Transistors - Bipolar (BJT) - Single |
| Description | TRANS NPN 400V 4A TO-220 |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | BUL128D-B PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Jan 23 - Jan 27 2026(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | BUL128D-B |
| Brand: | STMicroelectronics |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Discrete Semiconductor |
| Subcategory: | Transistors - Bipolar (BJT) - Single |
| Manufacturer: | STMicroelectronics |
| Series: | - |
| Package: | Tube |
| Part Status: | Active |
| Transistor Type: | NPN |
| Current - Collector (Ic) (Max): | 4 A |
| Voltage - Collector Emitter Breakdown (Max): | 400 V |
| Vce Saturation (Max) @ Ib, Ic: | 500mV @ 1A, 4A |
| Current - Collector Cutoff (Max): | 250µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce: | 12 @ 2A, 5V |
| Power - Max: | 70 W |
| Frequency - Transition: | - |
| Operating Temperature: | 150°C (TJ) |
| Mounting Type: | Through Hole |
| Package / Case: | TO-220-3 |
| Supplier Device Package: | TO-220AB |
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| In Stock | 14719 - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
Warm Tips: Please fill out the form below. We will contact you as soon as possible.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1 | $0.69000 | $0.69 |
| 4000 | $0.20606 | $824.24 |
Lixinc will offer the most competitive prices for you, please refer to the quotations.
Please feel free to contact us for details.