| Part Number | BD646-S | BD546-S |
|---|---|---|
| Manufacturer | Bourns Inc. | Bourns Inc. |
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single |
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| Product Status | Obsolete | Obsolete |
| Transistor Type | PNP - Darlington | PNP |
| Current - Collector (Ic) (Max) | 8 A | 15 A |
| Voltage - Collector Emitter Breakdown (Max) | 60 V | 40 V |
| Vce Saturation (Max) @ Ib, Ic | 2.5V @ 50mA, 5A | 1V @ 2A, 10A |
| Current - Collector Cutoff (Max) | 500µA | 700µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 750 @ 3A, 3V | 10 @ 10A, 4V |
| Power - Max | 2 W | 3.5 W |
| Frequency - Transition | - | - |
| Operating Temperature | -65°C ~ 150°C (TJ) | -65°C ~ 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-220-3 | TO-218-3 |
| Supplier Device Package | TO-220 | SOT-93 |