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| Part Number | STD845DN40 | STD840DN40 |
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Obsolete |
| Transistor Type | 2 NPN (Dual) | 2 NPN (Dual) |
| Current - Collector (Ic) (Max) | 4A | 4A |
| Voltage - Collector Emitter Breakdown (Max) | 400V | 400V |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 1A, 4A | 1V @ 400mA, 2A |
| Current - Collector Cutoff (Max) | 250µA | 250µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 12 @ 2A, 5V | 8 @ 2A, 5V |
| Power - Max | 3W | 3W |
| Frequency - Transition | - | - |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-DIP | 8-DIP |
