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| PartNumber | FZT491AQTA | FZT491 | FZT491A |
| Description | Bipolar Transistors - BJT Pwr Mid Perf Transistor | 1 A, 60 V, NPN, Si, POWER TRANSISTOR | |
| Manufacturer | Diodes Incorporated | - | ZETEX |
| Product Category | Bipolar Transistors - BJT | - | Transistors (BJT) - Single |
| Technology | Si | - | - |
| Mounting Style | SMD/SMT | - | SMD/SMT |
| Package / Case | SOT-223-3 | - | - |
| Transistor Polarity | NPN | - | NPN |
| Configuration | Single | - | Single |
| Collector Emitter Voltage VCEO Max | 40 V | - | - |
| Collector Base Voltage VCBO | 40 V | - | - |
| Emitter Base Voltage VEBO | 7 V | - | - |
| Collector Emitter Saturation Voltage | 0.5 V | - | 0.5 V |
| Gain Bandwidth Product fT | 150 MHz | - | 150 MHz |
| Minimum Operating Temperature | - 55 C | - | - 55 C |
| Maximum Operating Temperature | + 150 C | - | + 150 C |
| DC Current Gain hFE Max | 900 | - | 300 |
| Brand | Diodes Incorporated | - | - |
| Continuous Collector Current | 1 A | - | 1 A |
| Pd Power Dissipation | 3 W | - | - |
| Product Type | BJTs - Bipolar Transistors | - | - |
| Qualification | AEC-Q101 | - | - |
| Factory Pack Quantity | 1000 | - | - |
| Subcategory | Transistors | - | - |
| Series | - | - | FZT491 |
| Packaging | - | - | Reel |
| Unit Weight | - | - | 0.000282 oz |
| Package Case | - | - | SOT-223 |
| Pd Power Dissipation | - | - | 2 W |
| Collector Emitter Voltage VCEO Max | - | - | 40 V |
| Collector Base Voltage VCBO | - | - | 40 V |
| Emitter Base Voltage VEBO | - | - | 5 V |
| Maximum DC Collector Current | - | - | 1 A |
| DC Collector Base Gain hfe Min | - | - | 300 at 1 mA at 5 V 300 at 500 mA at 5 V 200 at 1 A at 5 V 35 at 2 A at 5 V |