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| PartNumber | 2N4231 | 2N4231A PBFREE | 2N423 |
| Description | Bipolar Transistors - BJT NPN Transistor | Bipolar Transistors - BJT 40Vcbo 40Vceo 5.0Vebo 5.0A 75W | |
| Manufacturer | Microchip | Central Semiconductor | - |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT | - |
| RoHS | N | Y | - |
| Packaging | Tray | Tube | - |
| Brand | Microchip / Microsemi | Central Semiconductor | - |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors | - |
| Factory Pack Quantity | 1 | 30 | - |
| Subcategory | Transistors | Transistors | - |
| Technology | - | Si | - |
| Mounting Style | - | Through Hole | - |
| Package / Case | - | TO-66-2 | - |
| Transistor Polarity | - | NPN | - |
| Configuration | - | Single | - |
| Collector Emitter Voltage VCEO Max | - | 40 V | - |
| Collector Base Voltage VCBO | - | 40 V | - |
| Emitter Base Voltage VEBO | - | 5 V | - |
| Collector Emitter Saturation Voltage | - | 4 V | - |
| Gain Bandwidth Product fT | - | 4 MHz | - |
| Minimum Operating Temperature | - | - 65 C | - |
| Maximum Operating Temperature | - | + 200 C | - |
| Series | - | 2N42 | - |
| DC Current Gain hFE Max | - | 100 at 1.5 A, 2 V | - |
| Continuous Collector Current | - | 5 A | - |
| DC Collector/Base Gain hfe Min | - | 25 at 1.5 A, 2 V | - |
| Pd Power Dissipation | - | 75 W | - |