| 序号 | 型号 | 极限工作电压 | 最大电流允许值 | 最大耗散功率 | 放大倍数 | 最大工作频率 | 制作材料 |
|---|---|---|---|---|---|---|---|
| 1 | 2N4899 | 60V | 1A | 25W | >3MHZ | Si-PNP | |
| 2 | 2N489B...494B | <1MHZ或未知 | UJT-P | ||||
| 3 | 2N489C...494C | <1MHZ或未知 | UJT-P | ||||
| 4 | 2N49 | 35V | 0.02A | 0.05W | <1MHZ或未知 | Ge-PNP | |
| 5 | 2N490(A) | 60V | 0.07A | <1MHZ或未知 | UJT-P | ||
| 6 | 2N4900 | 80V | 1A | 25W | >3MHZ | Si-PNP | |
| 7 | 2N4901 | 40V | 5A | 87.5W | β>20 | >4MHZ | Si-PNP |
| 8 | 2N4902 | 60V | 5A | 87.5W | β>20 | >4MHZ | Si-PNP |
| 9 | 2N4903 | 80V | 5A | 87.5W | β>20 | >4MHZ | Si-PNP |
| 10 | 2N4904 | 40V | 5A | 87.5W | β>25 | >4MHZ | Si-PNP |
| 11 | 2N4905 | 60V | 5A | 87.5W | β>25 | >4MHZ | Si-PNP |
| 12 | 2N4906 | 80V | 5A | 87.5W | β>25 | >4MHZ | Si-PNP |
| 13 | 2N4907 | 40V | 10A | 150W | 4MHZ | Si-PNP | |
| 14 | 2N4908 | 60V | 10A | 150W | 4MHZ | Si-PNP | |
| 15 | 2N4909 | 80V | 10A | 150W | 4MHZ | Si-PNP | |
| 16 | 2N491(A) | 60V | 0.07A | <1MHZ或未知 | UJT-P | ||
| 17 | 2N4910 | 40V | 1A | 25W | >3MHZ | Si-NPN | |
| 18 | 2N4911 | 60V | 1A | 25W | >3MHZ | Si-NPN | |
| 19 | 2N4912 | 80V | 1A | 25W | >3MHZ | Si-NPN | |
| 20 | 2N4913 | 40V | 5A | 87.5W | >4MHZ | Si-NPN | |
| 21 | 2N4914 | 60V | 5A | 87.5W | >4MHZ | Si-NPN | |
| 22 | 2N4915 | 80V | 5A | 87.5W | >4MHZ | Si-NPN | |
| 23 | 2N4916 | 30V | 0.1A | 0.2W | >400MHZ | Si-PNP | |
| 24 | 2N4917 | 30V | 0.1A | 0.2W | >450MHZ | Si-PNP | |
| 25 | 2N4918 | 40V | 1A | 30W | >3MHZ | Si-PNP | |
| 26 | 2N4919 | 60V | 1A | 30W | >3MHZ | Si-PNP | |
| 27 | 2N492(A) | 60V | 0.07A | <1MHZ或未知 | UJT-P | ||
| 28 | 2N4920 | 80V | 1A | 30W | >3MHZ | Si-PNP | |
| 29 | 2N4921 | 40V | 1A | 30W | >3MHZ | Si-PNP | |
| 30 | 2N4922 | 60V | 1A | 30W | >3MHZ | Si-PNP |
