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| Part Number | KSE5020S | KSE5020AS | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi | 
| Product Status | Obsolete | Obsolete | 
| Transistor Type | NPN | NPN | 
| Current - Collector (Ic) (Max) | 3 A | 3 A | 
| Voltage - Collector Emitter Breakdown (Max) | 500 V | 500 V | 
| Vce Saturation (Max) @ Ib, Ic | 1V @ 300mA, 1.5A | 1V @ 300mA, 1.5A | 
| Current - Collector Cutoff (Max) | 10µA (ICBO) | 10µA (ICBO) | 
| DC Current Gain (hFE) (Min) @ Ic, Vce | 15 @ 300mA, 5V | 15 @ 300mA, 5V | 
| Power - Max | 30 W | 30 W | 
| Frequency - Transition | 18MHz | 18MHz | 
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | 
| Supplier Device Package | TO-126-3 | TO-126-3 |