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 |
|---|---|---|---|---|---|---|---|---|
| SMF5955A | LEADSILICON | SOD-123FL | 1.5 | 171 | 189 | 2.1 | 0.5 | |
| SMF5956A | LEADSILICON | SOD-123FL | 1.5 | 190 | 210 | 1.9 | 0.5 | |
| LZ1M3A6.2A | LEADSILICON | SOT-723 | 0.00015 | 6.2 | 6.6 | 30 | 1 | |
| MM5Z2V4 | LJE | SOD-523 | 0.2 | 2.2 | 2.6 | 5 | 100 | 50 |
| MM5Z2V7 | LJE | SOD-523 | 0.2 | 2.5 | 2.9 | 5 | 100 | 20 |
| MM5Z3V0 | LJE | SOD-523 | 0.2 | 2.8 | 3.2 | 5 | 100 | 10 |
| MM5Z3V3 | LJE | SOD-523 | 0.2 | 3.1 | 3.5 | 5 | 95 | 5 |
| MM5Z3V6 | LJE | SOD-523 | 0.2 | 3.4 | 3.8 | 5 | 90 | 5 |
| MM5Z3V9 | LJE | SOD-523 | 0.2 | 3.7 | 4.1 | 5 | 90 | 3 |
| MM5Z4V3 | LJE | SOD-523 | 0.2 | 4 | 4.6 | 5 | 90 | 3 |
| MM5Z4V7 | LJE | SOD-523 | 0.2 | 4.4 | 5 | 5 | 80 | 3 |
| MM5Z5V1 | LJE | SOD-523 | 0.2 | 4.8 | 5.4 | 5 | 60 | 2 |
| MM5Z5V6 | LJE | SOD-523 | 0.2 | 5.2 | 6 | 5 | 40 | 1 |
| MM5Z6V2 | LJE | SOD-523 | 0.2 | 5.8 | 6.6 | 5 | 10 | 3 |
| MM5Z6V8 | LJE | SOD-523 | 0.2 | 6.4 | 7.2 | 5 | 15 | 2 |
| MM5Z7V5 | LJE | SOD-523 | 0.2 | 7 | 7.9 | 5 | 15 | 1 |
| MM5Z8V2 | LJE | SOD-523 | 0.2 | 7.7 | 8.7 | 5 | 15 | 0.7 |
| MM5Z9V1 | LJE | SOD-523 | 0.2 | 8.5 | 9.6 | 5 | 15 | 0.2 |
| MM5Z10V | LJE | SOD-523 | 0.2 | 9.4 | 10.6 | 5 | 20 | 0.1 |
| MM5Z11V | LJE | SOD-523 | 0.2 | 10.4 | 11.6 | 5 | 20 | 0.1 |