| Part Number | TIP121 | TIP151 |
|---|---|---|
| Manufacturer | Fairchild Semiconductor | NTE Electronics, Inc |
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single |
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| Product Status | Active | Active |
| Transistor Type | NPN - Darlington | NPN - Darlington |
| Current - Collector (Ic) (Max) | 5 A | 10 A |
| Voltage - Collector Emitter Breakdown (Max) | 80 V | 350 V |
| Vce Saturation (Max) @ Ib, Ic | 4V @ 20mA, 5A | 2V @ 250mA, 5A |
| Current - Collector Cutoff (Max) | 500µA | 250µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 1000 @ 3A, 3V | 150 @ 2.5A, 5V |
| Power - Max | 2 W | 80 W |
| Frequency - Transition | - | - |
| Operating Temperature | 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-220AB | TO-220 |