2N4221A 规格参数
| Features Provided | hermetically sealed case |
| Inclosure Material | metal |
| Overall Diameter | 0.209 inches minimum and 0.230 inches maximum |
| Terminal Type And Quantity | 4 uninsulated wire lead |
| Overall Length | 0.170 inches minimum and 0.210 inches maximum |
| Mounting Method | terminal |
| Internal Configuration | field effect |
| Channel Polarity And Control Type (Non-Core) | n-channel junction type |
| Terminal Length | 0.500 inches minimum |
| Terminal Circle Diameter | 0.100 inches nominal |
| Current Rating Per Characteristic | 15.00 milliamperes forward current, average watts and 10.00 milliamperes source cutoff current minor |