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| PartNumber | 2N2221A | 2N2221AL | 2N2221 |
| Description | Bipolar Transistors - BJT NPN Gen Pur SS | Bipolar Transistors - BJT NPN Transistor | Bipolar Transistors - BJT NPN 60Vcbo 30Vceo 5.0Vebo 800mA 500mW |
| Manufacturer | Central Semiconductor | Microchip | Central Semiconductor |
| Product Category | Bipolar Transistors - BJT | Bipolar Transistors - BJT | Bipolar Transistors - BJT |
| RoHS | Y | N | Y |
| Mounting Style | Through Hole | - | Through Hole |
| Package / Case | TO-18 | - | TO-18 |
| Transistor Polarity | NPN | - | NPN |
| Configuration | Single | - | Single |
| Collector Emitter Voltage VCEO Max | 40 V | - | 30 V |
| Collector Base Voltage VCBO | 75 V | - | 60 V |
| Emitter Base Voltage VEBO | 6 V | - | 5 V |
| Collector Emitter Saturation Voltage | 1 V | - | 1.6 V |
| Maximum DC Collector Current | 0.8 A | - | - |
| Gain Bandwidth Product fT | 250 MHz | - | 250 MHz |
| Minimum Operating Temperature | - 65 C | - | - 65 C |
| Maximum Operating Temperature | + 150 C | - | + 200 C |
| Series | 2N2221 | - | - |
| DC Current Gain hFE Max | 120 | - | - |
| Height | 5.33 mm | - | - |
| Length | 5.84 mm | - | - |
| Packaging | Bulk | Foil Bag | Bulk |
| Width | 5.84 mm | - | - |
| Brand | Central Semiconductor | Microchip / Microsemi | Central Semiconductor |
| DC Collector/Base Gain hfe Min | 40 | - | 15 at 10 mA, 10 V |
| Pd Power Dissipation | 400 mW | - | 500 mW |
| Product Type | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors | BJTs - Bipolar Transistors |
| Factory Pack Quantity | 2000 | 1 | 2000 |
| Subcategory | Transistors | Transistors | Transistors |
| Part # Aliases | 2N2221A PBFREE | - | 2N2221 PBFREE |
| Unit Weight | 0.011020 oz | - | - |
| Technology | - | - | Si |
| Continuous Collector Current | - | - | 800 mA |