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 |
|---|---|---|---|---|---|---|---|---|
| SMF5945A | LEADSILICON | 1.5 | 64.6 | 71.4 | 5.5 | 0.5 | SOD-123FL | |
| SMF5946A | LEADSILICON | 1.5 | 71.25 | 78.75 | 5 | 0.5 | SOD-123FL | |
| SMF5947A | LEADSILICON | 1.5 | 77.9 | 86.1 | 4.6 | 0.5 | SOD-123FL | |
| SMF5948A | LEADSILICON | 1.5 | 86.45 | 95.55 | 4.1 | 0.5 | SOD-123FL | |
| SMF5949A | LEADSILICON | 1.5 | 95 | 105 | 3.7 | 0.5 | SOD-123FL | |
| SMF5950A | LEADSILICON | 1.5 | 104.5 | 115.5 | 3.4 | 0.5 | SOD-123FL | |
| SMF5951A | LEADSILICON | 1.5 | 114 | 126 | 3.1 | 0.5 | SOD-123FL | |
| SMF5952A | LEADSILICON | 1.5 | 123.5 | 136.5 | 2.9 | 0.5 | SOD-123FL | |
| SMF5953A | LEADSILICON | 1.5 | 142.5 | 157.5 | 2.5 | 0.5 | SOD-123FL | |
| SMF5954A | LEADSILICON | 1.5 | 152 | 168 | 2.3 | 0.5 | SOD-123FL | |
| SMF5955A | LEADSILICON | 1.5 | 171 | 189 | 2.1 | 0.5 | SOD-123FL | |
| SMF5956A | LEADSILICON | 1.5 | 190 | 210 | 1.9 | 0.5 | SOD-123FL | |
| LZ1M3A6.2A | LEADSILICON | 0.00015 | 6.2 | 6.6 | 30 | 1 | SOT-723 | |
| BZT52B5V1 | LEADSILICON | 0.5 | 5 | 5.2 | 5 | 2 | SOD-123 | |
| BZT52B5V6 | LEADSILICON | 0.5 | 5.49 | 5.71 | 5 | 1 | SOD-123 | |
| BZT52B6V2 | LEADSILICON | 0.5 | 6.08 | 6.32 | 5 | 3 | SOD-123 | |
| BZT52B6V8 | LEADSILICON | 0.5 | 6.66 | 6.94 | 5 | 2 | SOD-123 | |
| BZT52B7V5 | LEADSILICON | 0.5 | 7.35 | 7.65 | 5 | 1 | SOD-123 | |
| BZT52B8V2 | LEADSILICON | 0.5 | 8.04 | 8.36 | 5 | 0.7 | SOD-123 | |
| BZT52B9V1 | LEADSILICON | 0.5 | 8.92 | 9.28 | 5 | 0.5 | SOD-123 |