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| PartNumber | 2N3440UA | 2N3440U4 | 2N3440UAJAN |
| Description | Bipolar Transistors - BJT NPN Transistor | Bipolar Transistors - BJT Power BJT | Low Power Transistor NPN Surface Mount UA - Bulk (Alt: JAN2N3440UA) |
| Manufacturer | Microchip | Microchip | - |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT | - |
| RoHS | N | N | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SMD-4 | U4-3 | - |
| Packaging | Waffle | Tray | - |
| Brand | Microchip / Microsemi | Microchip / Microsemi | - |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Transistors | Transistors | - |
| Technology | - | Si | - |
| Transistor Polarity | - | NPN | - |
| Configuration | - | Single | - |
| Collector Emitter Voltage VCEO Max | - | 250 V | - |
| Collector Base Voltage VCBO | - | 300 V | - |
| Emitter Base Voltage VEBO | - | 7 V | - |
| Collector Emitter Saturation Voltage | - | 0.5 V | - |
| Maximum DC Collector Current | - | 1 A | - |
| Minimum Operating Temperature | - | - 65 C | - |
| Maximum Operating Temperature | - | + 200 C | - |
| DC Current Gain hFE Max | - | 160 | - |
| Continuous Collector Current | - | 1 A | - |
| DC Collector/Base Gain hfe Min | - | 40 | - |
| Pd Power Dissipation | - | 0.8 W | - |