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| Part Number | KSD1408OTU | KSD1408YTU | KSD1406OTU | KSD1408GTU |
|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi | onsemi | onsemi |
| Product Status | Obsolete | Active | Obsolete | Obsolete |
| Transistor Type | NPN | NPN | NPN | NPN |
| Current - Collector (Ic) (Max) | 4 A | 4 A | 3 A | 4 A |
| Voltage - Collector Emitter Breakdown (Max) | 80 V | 80 V | 60 V | 80 V |
| Vce Saturation (Max) @ Ib, Ic | 1.5V @ 300mA, 3A | 1.5V @ 300mA, 3A | 1V @ 300mA, 3A | 1.5V @ 300mA, 3A |
| Current - Collector Cutoff (Max) | 30µA (ICBO) | 30µA (ICBO) | 100µA (ICBO) | 30µA (ICBO) |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 70 @ 500mA, 5V | 120 @ 500mA, 5V | 60 @ 500mA, 5V | 40 @ 500mA, 5V |
| Power - Max | 25 W | 25 W | 25 W | 25 W |
| Frequency - Transition | 8MHz | 8MHz | 3MHz | 8MHz |
| 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-220-3 Full Pack | TO-220-3 Full Pack | TO-220-3 Full Pack | TO-220-3 Full Pack |
| Supplier Device Package | TO-220F-3 | TO-220F-3 | TO-220F-3 | TO-220F-3 |
