稳压二极管也称为 齐纳二极管，是一种利用二极管反向击穿特性进行稳压的电子元件。当反向电压达到或超过其击穿电压（齐纳电压）时，稳压管会进入击穿状态，并维持一个相对稳定的电压输出。这个稳定的电压值被称为稳压值，广泛应用于稳压电源和限幅电路中。
| 型号 | 制造商 | 封装 | PD_Max/W | VZ_Min/V | VZ_Max/V | @ IZT/mA | ZZT_Max/Ω | IR_Max/μA |
|---|---|---|---|---|---|---|---|---|
| SMAZHC18 | JJM | SMA | 1 | 17.1 | 18.9 | 14 | 20 | 1 |
| SMAZHC20 | JJM | SMA | 1 | 19 | 21 | 12.5 | 22 | 1 |
| SMAZHC22 | JJM | SMA | 1 | 20.9 | 23.1 | 11.5 | 23 | 1 |
| SMAZHC24 | JJM | SMA | 1 | 22.8 | 25.2 | 10.5 | 25 | 1 |
| SMAZHC27 | JJM | SMA | 1 | 25.7 | 28.4 | 9.5 | 35 | 1 |
| SMAZHC30 | JJM | SMA | 1 | 28.5 | 31.5 | 8.5 | 40 | 1 |
| SMAZHC33 | JJM | SMA | 1 | 31.4 | 34.7 | 7.5 | 45 | 1 |
| SMAZHC36 | JJM | SMA | 1 | 34.2 | 37.8 | 7 | 50 | 1 |
| SMAZHC39 | JJM | SMA | 1 | 37.1 | 41 | 6.5 | 60 | 1 |
| SMAZHC43 | JJM | SMA | 1 | 40.9 | 45.2 | 6 | 70 | 1 |
| SMAZHC47 | JJM | SMA | 1 | 44.7 | 49.4 | 5.5 | 80 | 1 |
| SMAZHC4V7 | JJM | SMA | 1 | 4.47 | 4.94 | 53 | 8 | 10 |
| SMAZHC51 | JJM | SMA | 1 | 48.5 | 53.6 | 5 | 95 | 1 |
| SMAZHC56 | JJM | SMA | 1 | 53.2 | 58.8 | 4.5 | 110 | 1 |
| SMAZHC5V1 | JJM | SMA | 1 | 4.85 | 5.36 | 49 | 7 | 5 |
| SMAZHC5V6 | JJM | SMA | 1 | 5.32 | 5.88 | 45 | 5 | 5 |
| SMAZHC62 | JJM | SMA | 1 | 58.9 | 65.1 | 4 | 125 | 1 |
| SMAZHC68 | JJM | SMA | 1 | 64.6 | 71.4 | 3.7 | 150 | 1 |
| SMAZHC6V2 | JJM | SMA | 1 | 5.89 | 6.51 | 41 | 4 | 5 |
| SMAZHC6V8 | JJM | SMA | 1 | 6.46 | 7.14 | 37 | 3.5 | 10 |