For Reference Only
| Part Number | BD681 |
| Manufacturer | STMicroelectronics |
| Category | Discrete Semiconductor › Transistors - Bipolar (BJT) - Single |
| Description | TRANS NPN DARL 100V 4A SOT32-3 |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | BD681 PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Dec 09 - Dec 13 2025(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment | 
|
| Shipping |  |
| Part Number: | BD681 |
| Brand: | STMicroelectronics |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Discrete Semiconductor |
| Subcategory: | Transistors - Bipolar (BJT) - Single |
| Manufacturer: | STMicroelectronics |
| Product Status: | Active |
| Transistor Type: | NPN - Darlington |
| Current - Collector (Ic) (Max): | 4 A |
| Voltage - Collector Emitter Breakdown (Max): | 100 V |
| Vce Saturation (Max) @ Ib, Ic: | 2.5V @ 30mA, 1.5A |
| Current - Collector Cutoff (Max): | 500µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce: | 750 @ 1.5A, 3V |
| Power - Max: | 40 W |
| Frequency - Transition: | - |
| Operating Temperature: | 150°C (TJ) |
| Mounting Type: | Through Hole |
| Package / Case: | TO-225AA, TO-126-3 |
| Supplier Device Package: | SOT-32-3 |
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| In Stock | 95725 pieces - 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 | $0.94000 | $0.94 |
| 50 | $0.77340 | $38.67 |
| 100 | $0.63120 | $63.12 |
| 500 | $0.49896 | $249.48 |
| 1000 | $0.39917 | $399.17 |
| 2500 | $0.36175 | $904.375 |
| 5000 | $0.33680 | $1684 |
Due to the impact of the COVID-19,the above prices have not been updated, please resend the inquiry to us, thank you for your understanding
Please feel free to contact us for details.
