| PartNumber | 2N4400 | 2N4400TA | 2N4400BU |
| Description | Bipolar Transistors - BJT NPN 60Vcbo 40Vceo 6.0Vebo 600mA 625mW | Bipolar Transistors - BJT NPN Transistor General Purpose | Bipolar Transistors - BJT NPN Transistor General Purpose |
| Manufacturer | Central Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT | Bipolar Transistors - BJT |
| RoHS | Y | Y | Y |
| Technology | Si | - | - |
| Mounting Style | Through Hole | Through Hole | Through Hole |
| Package / Case | TO-92-3 | TO-92-3 Kinked Lead | TO-92-3 |
| Transistor Polarity | NPN | NPN | NPN |
| Configuration | Single | Single | Single |
| Collector Emitter Voltage VCEO Max | 40 V | 40 V | 40 V |
| Collector Base Voltage VCBO | 60 V | 60 V | 60 V |
| Emitter Base Voltage VEBO | 6 V | 6 V | 6 V |
| Collector Emitter Saturation Voltage | 0.75 V | 0.75 V | 0.75 V |
| Gain Bandwidth Product fT | 200 MHz | - | - |
| Minimum Operating Temperature | - 65 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 150 C | + 150 C | + 150 C |
| Series | 2N4400 | 2N4400 | 2N4400 |
| DC Current Gain hFE Max | 150 at 150 mA, 1 V | 150 | 150 |
| Packaging | Bulk | Ammo Pack | Bulk |
| Brand | Central Semiconductor | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Continuous Collector Current | 600 mA | 0.6 A | 0.6 A |
| DC Collector/Base Gain hfe Min | 20 at 500 mA, 2 V | 50 | 50 |
| Pd Power Dissipation | 625 mW | 625 mW | 625 mW |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors |
| Factory Pack Quantity | 2500 | 2000 | 1000 |
| Subcategory | Transistors | Transistors | Transistors |
| Part # Aliases | 2N4400 PBFREE | - | - |
| Maximum DC Collector Current | - | 0.6 A | 0.6 A |
| Height | - | 4.7 mm | 4.7 mm |
| Length | - | 4.7 mm | 4.7 mm |
| Width | - | 3.93 mm | 3.93 mm |
| Unit Weight | - | 0.008466 oz | 0.006314 oz |