| Part Number | FZT491ATC | FZT491TC |
|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated |
| Category | Transistors - Bipolar (BJT) - Single | Transistors - Bipolar (BJT) - Single |
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| Product Status | Obsolete | Obsolete |
| Transistor Type | NPN | NPN |
| Current - Collector (Ic) (Max) | 1 A | 1 A |
| Voltage - Collector Emitter Breakdown (Max) | 40 V | 60 V |
| Vce Saturation (Max) @ Ib, Ic | 500mV @ 100mA, 1A | 500mV @ 100mA, 1A |
| Current - Collector Cutoff (Max) | 100nA | 100nA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 300 @ 500mA, 5V | 100 @ 500mA, 5V |
| Power - Max | 2 W | 2 W |
| Frequency - Transition | 150MHz | 150MHz |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | TO-261-4, TO-261AA | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-3 | SOT-223-3 |