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 | 品牌 | PD_Max/W | VZ_Min/V | VZ_Max/V | @ IZT/mA | ZZT_Max/Ω | IR_Max/μA | 封装 |
|---|---|---|---|---|---|---|---|---|
| SMF4757A | LEADSILICON | 1 | 5 | 0.1 | SOD-123FL | |||
| SMF4758A | LEADSILICON | 1 | 4.5 | 0.1 | SOD-123FL | |||
| SMF4759A | LEADSILICON | 1 | 4 | 0.1 | SOD-123FL | |||
| SMF4760A | LEADSILICON | 1 | 3.7 | 0.1 | SOD-123FL | |||
| SMF4761A | LEADSILICON | 1 | 3.3 | 0.1 | SOD-123FL | |||
| SMF4762A | LEADSILICON | 1 | 3 | 0.1 | SOD-123FL | |||
| SMF4763A | LEADSILICON | 1 | 2.8 | 0.1 | SOD-123FL | |||
| SMF4764A | LEADSILICON | 1 | 2.5 | 0.1 | SOD-123FL | |||
| SMF5913A | LEADSILICON | 1.5 | 3.135 | 3.465 | 113.6 | 100 | SOD-123FL | |
| SMF5914A | LEADSILICON | 1.5 | 3.42 | 3.78 | 104.2 | 75 | SOD-123FL | |
| SMF5915A | LEADSILICON | 1.5 | 3.71 | 4.1 | 96.1 | 25 | SOD-123FL | |
| SMF5916A | LEADSILICON | 1.5 | 4.09 | 4.52 | 87.2 | 5 | SOD-123FL | |
| SMF5917A | LEADSILICON | 1.5 | 4.47 | 4.94 | 79.8 | 5 | SOD-123FL | |
| SMF5918A | LEADSILICON | 1.5 | 4.85 | 5.36 | 73.5 | 5 | SOD-123FL | |
| SMF5919A | LEADSILICON | 1.5 | 5.32 | 5.88 | 66.9 | 5 | SOD-123FL | |
| SMF5920A | LEADSILICON | 1.5 | 5.89 | 6.51 | 60.5 | 2.5 | SOD-123FL | |
| SMF5921A | LEADSILICON | 1.5 | 6.46 | 7.14 | 55.1 | 2.5 | SOD-123FL | |
| SMF5922A | LEADSILICON | 1.5 | 7.13 | 7.88 | 50 | 2.5 | SOD-123FL | |
| SMF5923A | LEADSILICON | 1.5 | 7.79 | 8.61 | 45.7 | 2.5 | SOD-123FL | |
| SMF5924A | LEADSILICON | 1.5 | 8.65 | 9.56 | 41.2 | 2.5 | SOD-123FL |