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 |
|---|---|---|---|---|---|---|---|---|
| MMBZ5252B | LEADSILICON | SOT-23 | 0.3 | 22.8 | 25.2 | 5.2 | 0.1 | |
| MMBZ5253B | LEADSILICON | SOT-23 | 0.3 | 23.75 | 26.25 | 5 | 0.1 | |
| MMBZ5254B | LEADSILICON | SOT-23 | 0.3 | 25.65 | 28.35 | 5 | 0.1 | |
| MMBZ5255B | LEADSILICON | SOT-23 | 0.3 | 26.6 | 29.4 | 4.5 | 0.1 | |
| MMBZ5256B | LEADSILICON | SOT-23 | 0.3 | 28.5 | 31.5 | 4.2 | 0.1 | |
| MMBZ5257B | LEADSILICON | SOT-23 | 0.3 | 31.35 | 34.65 | 3.8 | 0.1 | |
| MMBZ5258B | LEADSILICON | SOT-23 | 0.3 | 34.2 | 37.8 | 3.4 | 0.1 | |
| MMBZ5259B | LEADSILICON | SOT-23 | 0.3 | 37.05 | 40.95 | 3.2 | 0.1 | |
| MMBZ5231C | LEADSILICON | SOT-23 | 0.3 | 5 | 5.2 | 20 | 5 | |
| MMBZ5232C | LEADSILICON | SOT-23 | 0.3 | 5.49 | 5.71 | 20 | 5 | |
| MMBZ5233C | LEADSILICON | SOT-23 | 0.3 | 5.88 | 6.12 | 20 | 5 | |
| MMBZ5234C | LEADSILICON | SOT-23 | 0.3 | 6.08 | 6.32 | 20 | 5 | |
| MMBZ5235C | LEADSILICON | SOT-23 | 0.3 | 6.66 | 6.94 | 20 | 3 | |
| MMBZ5236C | LEADSILICON | SOT-23 | 0.3 | 7.35 | 7.65 | 20 | 3 | |
| MMBZ5237C | LEADSILICON | SOT-23 | 0.3 | 8.04 | 8.36 | 20 | 3 | |
| MMBZ5238C | LEADSILICON | SOT-23 | 0.3 | 8.53 | 8.87 | 20 | 3 | |
| MMBZ5239C | LEADSILICON | SOT-23 | 0.3 | 8.92 | 9.28 | 20 | 3 | |
| MMBZ5240C | LEADSILICON | SOT-23 | 0.3 | 9.8 | 10.2 | 20 | 3 | |
| MMBZ5241C | LEADSILICON | SOT-23 | 0.3 | 10.78 | 11.22 | 20 | 2 | |
| MMBZ5242C | LEADSILICON | SOT-23 | 0.3 | 11.76 | 12.24 | 20 | 1 |