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 |
|---|---|---|---|---|---|---|---|---|
| SMF5915A | LEADSILICON | SOD-123FL | 1.5 | 3.71 | 4.1 | 96.1 | 25 | |
| SMF5916A | LEADSILICON | SOD-123FL | 1.5 | 4.09 | 4.52 | 87.2 | 5 | |
| SMF5917A | LEADSILICON | SOD-123FL | 1.5 | 4.47 | 4.94 | 79.8 | 5 | |
| SMF5918A | LEADSILICON | SOD-123FL | 1.5 | 4.85 | 5.36 | 73.5 | 5 | |
| SMF5919A | LEADSILICON | SOD-123FL | 1.5 | 5.32 | 5.88 | 66.9 | 5 | |
| SMF5920A | LEADSILICON | SOD-123FL | 1.5 | 5.89 | 6.51 | 60.5 | 2.5 | |
| SMF5921A | LEADSILICON | SOD-123FL | 1.5 | 6.46 | 7.14 | 55.1 | 2.5 | |
| SMF5922A | LEADSILICON | SOD-123FL | 1.5 | 7.13 | 7.88 | 50 | 2.5 | |
| SMF5923A | LEADSILICON | SOD-123FL | 1.5 | 7.79 | 8.61 | 45.7 | 2.5 | |
| SMF5924A | LEADSILICON | SOD-123FL | 1.5 | 8.65 | 9.56 | 41.2 | 2.5 | |
| SMF5925A | LEADSILICON | SOD-123FL | 1.5 | 8.5 | 10.5 | 37.5 | 2.5 | |
| SMF5926A | LEADSILICON | SOD-123FL | 1.5 | 10.45 | 11.55 | 34.1 | 0.5 | |
| SMF5927A | LEADSILICON | SOD-123FL | 1.5 | 11.4 | 12.6 | 31.2 | 0.5 | |
| SMF5928A | LEADSILICON | SOD-123FL | 1.5 | 12.35 | 13.65 | 28.8 | 0.5 | |
| SMF5929A | LEADSILICON | SOD-123FL | 1.5 | 14.25 | 15.75 | 25 | 0.5 | |
| SMF5930A | LEADSILICON | SOD-123FL | 1.5 | 15.2 | 16.8 | 23.4 | 0.5 | |
| SMF5931A | LEADSILICON | SOD-123FL | 1.5 | 17.1 | 18.9 | 20.8 | 0.5 | |
| SMF5932A | LEADSILICON | SOD-123FL | 1.5 | 19 | 21 | 18.7 | 0.5 | |
| SMF5933A | LEADSILICON | SOD-123FL | 1.5 | 20.9 | 23.1 | 17 | 0.5 | |
| SMF5934A | LEADSILICON | SOD-123FL | 1.5 | 22.8 | 25.2 | 15.6 | 0.5 |