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| Part Number | 2ST2121 | 2STA2121 |
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Obsolete |
| Transistor Type | PNP | PNP |
| Current - Collector (Ic) (Max) | 17 A | 17 A |
| Voltage - Collector Emitter Breakdown (Max) | 250 V | 250 V |
| Vce Saturation (Max) @ Ib, Ic | 3V @ 800mA, 8A | 3V @ 800mA, 8A |
| Current - Collector Cutoff (Max) | 5µA (ICBO) | 5µA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 80 @ 1A, 5V | 80 @ 1A, 5V |
| Power - Max | 250 W | 220 W |
| Frequency - Transition | 25MHz | 25MHz |
| Operating Temperature | 200°C (TJ) | 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-204AA, TO-3 | TO-264-3, TO-264AA |
| Supplier Device Package | TO-3 | TO-264 |
