| Part Number | BD544-S | BD744-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 | PNP |
| Current - Collector (Ic) (Max) | 8 A | 15 A |
| Voltage - Collector Emitter Breakdown (Max) | 40 V | 45 V |
| Vce Saturation (Max) @ Ib, Ic | 1V @ 1.6A, 8A | 3V @ 5A, 15A |
| Current - Collector Cutoff (Max) | 700µA | 100µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 15 @ 5A, 4V | 20 @ 5A, 4V |
| Power - Max | 2 W | 2 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-220-3 |
| Supplier Device Package | TO-220 | TO-220 |