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 |
|---|---|---|---|---|---|---|---|---|
| MMBZ5243C | LEADSILICON | SOT-23 | 0.3 | 12.74 | 13.26 | 9.5 | 0.5 | |
| MMBZ5244C | LEADSILICON | SOT-23 | 0.3 | 13.72 | 14.28 | 9 | 0.1 | |
| MMBZ5245C | LEADSILICON | SOT-23 | 0.3 | 14.7 | 15.3 | 8.5 | 0.1 | |
| MMBZ5246C | LEADSILICON | SOT-23 | 0.3 | 15.68 | 16.32 | 7.8 | 0.1 | |
| MMBZ5247C | LEADSILICON | SOT-23 | 0.3 | 16.66 | 17.34 | 7.4 | 0.1 | |
| MMBZ5248C | LEADSILICON | SOT-23 | 0.3 | 17.64 | 18.36 | 7 | 0.1 | |
| MMBZ5249C | LEADSILICON | SOT-23 | 0.3 | 18.62 | 19.38 | 6.6 | 0.1 | |
| MMBZ5250C | LEADSILICON | SOT-23 | 0.3 | 19.6 | 20.4 | 6.2 | 0.1 | |
| SMF1110A | LEADSILICON | SOD-123FL | 1 | 2.3 | 0.1 | |||
| SMF1120A | LEADSILICON | SOD-123FL | 1 | 2 | 0.1 | |||
| SMF1130A | LEADSILICON | SOD-123FL | 1 | 1.9 | 0.1 | |||
| SMF1150A | LEADSILICON | SOD-123FL | 1 | 1.7 | 0.1 | |||
| SMF1160A | LEADSILICON | SOD-123FL | 1 | 1.6 | 0.1 | |||
| SMF1180A | LEADSILICON | SOD-123FL | 1 | 1.4 | 0.1 | |||
| SMF1200A | LEADSILICON | SOD-123FL | 1 | 1.2 | 0.1 | |||
| SMF1220A | LEADSILICON | SOD-123FL | 1 | 1 | 0.1 | |||
| SMF1240A | LEADSILICON | SOD-123FL | 1 | 0.9 | 0.1 | |||
| SMF1250A | LEADSILICON | SOD-123FL | 1 | 0.9 | 0.1 | |||
| SMF1270A | LEADSILICON | SOD-123FL | 1 | 0.8 | 0.1 | |||
| SMF1300A | LEADSILICON | SOD-123FL | 1 | 0.8 | 0.1 |