| Part Number | BUT12ATU | BUT12TU | 
|---|---|---|
| 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) | 8 A | 8 A | 
| Voltage - Collector Emitter Breakdown (Max) | 450 V | 400 V | 
| Vce Saturation (Max) @ Ib, Ic | 1.5V @ 1.2A, 6A | 1.5V @ 1.2A, 6A | 
| Current - Collector Cutoff (Max) | 1mA | 1mA | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | - | - | 
| Power - Max | 100 W | 100 W | 
| Frequency - Transition | - | - | 
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | TO-220-3 | TO-220-3 | 
| Supplier Device Package | TO-220-3 | TO-220-3 |