| Part Number | BUL45 | BUL44 |
|---|---|---|
| Manufacturer | onsemi | onsemi |
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single |
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| Product Status | Obsolete | Obsolete |
| Transistor Type | NPN | NPN |
| Current - Collector (Ic) (Max) | 5 A | 2 A |
| Voltage - Collector Emitter Breakdown (Max) | 400 V | 400 V |
| Vce Saturation (Max) @ Ib, Ic | 400mV @ 400mA, 2A | 600mV @ 200mA, 1A |
| Current - Collector Cutoff (Max) | 100µA | 100µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 14 @ 300mA, 5V | 14 @ 200mA, 5V |
| Power - Max | 75 W | 50 W |
| Frequency - Transition | 12MHz | 13MHz |
| 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 |