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 |
|---|---|---|---|---|---|---|---|---|
| MMSZ5246CS | LEADSILICON | 0.2 | 15.68 | 16.32 | 7.8 | 0.1 | SOD-323 | |
| MMSZ5248CS | LEADSILICON | 0.2 | 17.64 | 18.36 | 7 | 14 | SOD-323 | |
| MMSZ5250CS | LEADSILICON | 0.2 | 19.6 | 20.4 | 6.2 | 0.1 | SOD-323 | |
| MMBZ5225B | LEADSILICON | 0.3 | 2.85 | 3.15 | 20 | 50 | SOT-23 | |
| MMBZ5226B | LEADSILICON | 0.3 | 3.14 | 3.47 | 20 | 25 | SOT-23 | |
| MMBZ5227B | LEADSILICON | 0.3 | 3.42 | 3.78 | 20 | 15 | SOT-23 | |
| MMBZ5228B | LEADSILICON | 0.3 | 3.71 | 4.1 | 20 | 10 | SOT-23 | |
| MMBZ5229B | LEADSILICON | 0.3 | 4.09 | 4.52 | 20 | 5 | SOT-23 | |
| MMBZ5230B | LEADSILICON | 0.3 | 4.47 | 4.94 | 20 | 5 | SOT-23 | |
| MMBZ5231B | LEADSILICON | 0.3 | 4.85 | 5.36 | 20 | 5 | SOT-23 | |
| MMBZ5232B | LEADSILICON | 0.3 | 5.32 | 5.88 | 20 | 5 | SOT-23 | |
| MMBZ5233B | LEADSILICON | 0.3 | 5.7 | 6.3 | 20 | 5 | SOT-23 | |
| MMBZ5234B | LEADSILICON | 0.3 | 5.89 | 6.51 | 20 | 5 | SOT-23 | |
| MMBZ5235B | LEADSILICON | 0.3 | 6.46 | 7.14 | 20 | 3 | SOT-23 | |
| MMBZ5236B | LEADSILICON | 0.3 | 7.13 | 7.88 | 20 | 3 | SOT-23 | |
| MMBZ5237B | LEADSILICON | 0.3 | 7.79 | 8.61 | 20 | 3 | SOT-23 | |
| MMBZ5238B | LEADSILICON | 0.3 | 8.27 | 9.14 | 20 | 3 | SOT-23 | |
| MMBZ5239B | LEADSILICON | 0.3 | 8.65 | 9.56 | 20 | 3 | SOT-23 | |
| MMBZ5240B | LEADSILICON | 0.3 | 9.5 | 10.5 | 20 | 3 | SOT-23 | |
| MMBZ5241B | LEADSILICON | 0.3 | 10.45 | 11.55 | 20 | 2 | SOT-23 |