| Part Numbers | Manufacturer Name | Datasheet | Transistor Type | Current - Collector (Ic) (Max) | Voltage - Collector Emitter Breakdown (Max) | Vce Saturation (Max) @ Ib, Ic | Current - Collector Cutoff (Max) | DC Current Gain (hFE) (Min) @ Ic, Vce | Power - Max | Frequency - Transition | Mounting Type | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KSD1943TU | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | - | 400 @ 500mA, 4V | 40W | - | Through Hole | TO-220-3 | |
| KSD1944TU | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | - | 400 @ 500mA, 4V | 30W | - | Through Hole | TO-220-3 Full Pack | |
| KSD1273QYDTU | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | 100µA | 500 @ 500mA, 4V | 2W | 30MHz | Through Hole | TO-220-3 Full Pack | |
| KSD1273PTSTU | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | 100µA | 800 @ 500mA, 4V | 2W | 30MHz | Through Hole | TO-220-3 Full Pack | |
| KSD1273Q | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | 100µA | 500 @ 500mA, 4V | 2W | 30MHz | Through Hole | TO-220-3 Full Pack | |
| KSD1273QTU | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | 100µA | 500 @ 500mA, 4V | 2W | 30MHz | Through Hole | TO-220-3 Full Pack | |
| KSD1273P | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | 100µA | 800 @ 500mA, 4V | 2W | 30MHz | Through Hole | TO-220-3 Full Pack | |
| KSD1273PTU | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | 100µA | 800 @ 500mA, 4V | 2W | 30MHz | Through Hole | TO-220-3 Full Pack | |
| KSD1273OTU | FAIRCHILD SEMICONDUCTOR CORP | NPN | 3A | 60V | 1V @ 50mA, 2A | 100µA | 1200 @ 500mA, 4V | 2W | 30MHz | Through Hole | TO-220-3 Full Pack |
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