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| Part Number | KSA643YBU | KSA642YBU | KSA643CYBU | KSA643GBU |
|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | onsemi | onsemi |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Transistor Type | PNP | PNP | PNP | PNP |
| Current - Collector (Ic) (Max) | 500 mA | 300 mA | 500 mA | 500 mA |
| Voltage - Collector Emitter Breakdown (Max) | 20 V | 25 V | 20 V | 20 V |
| Vce Saturation (Max) @ Ib, Ic | 400mV @ 50mA, 500mA | 600mV @ 30mA, 300mA | 400mV @ 50mA, 500mA | 400mV @ 50mA, 500mA |
| Current - Collector Cutoff (Max) | 200nA (ICBO) | 100nA (ICBO) | 200nA (ICBO) | 200nA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 120 @ 100mA, 1V | 120 @ 50mA, 1V | 120 @ 100mA, 1V | 200 @ 100mA, 1V |
| Power - Max | 500 mW | 400 mW | 500 mW | 500 mW |
| Frequency - Transition | - | - | - | - |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) | TO-226-3, TO-92-3 (TO-226AA) | TO-226-3, TO-92-3 (TO-226AA) | TO-226-3, TO-92-3 (TO-226AA) |
| Supplier Device Package | TO-92-3 | TO-92-3 | TO-92-3 | TO-92-3 |
