| Part Number | BD159STU | BD157STU |
|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi |
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single |
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| Product Status | Active | Obsolete |
| Transistor Type | NPN | NPN |
| Current - Collector (Ic) (Max) | 500 mA | 500 mA |
| Voltage - Collector Emitter Breakdown (Max) | 350 V | 250 V |
| Vce Saturation (Max) @ Ib, Ic | - | - |
| Current - Collector Cutoff (Max) | 100µA (ICBO) | 100µA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 30 @ 50mA, 10V | 30 @ 50mA, 10V |
| Power - Max | 20 W | 20 W |
| Frequency - Transition | - | - |
| Operating Temperature | - | - |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 |
| Supplier Device Package | TO-126-3 | TO-126-3 |