Zener Diode
| Parameter Name | Attribute value |
| Maker | Cheng-Yi Electronic Co., Ltd. |
| Reach Compliance Code | unknow |

| ZMM5222B | ZMM5221B | ZMM5251B | ZMM5266B | ZMM5226B | ZMM5229B | ZMM5237B | |
|---|---|---|---|---|---|---|---|
| Description | Zener Diode | Zener Diode | Zener Diode, | Zener Diode, | Zener Diode | Zener Diode, | Zener Diode, |
| Maker | Cheng-Yi Electronic Co., Ltd. | Cheng-Yi Electronic Co., Ltd. | Cheng-Yi Electronic Co., Ltd. | Cheng-Yi Electronic Co., Ltd. | Cheng-Yi Electronic Co., Ltd. | Cheng-Yi Electronic Co., Ltd. | Cheng-Yi Electronic Co., Ltd. |
| Reach Compliance Code | unknow | unknown | unknown | unknown | unknown | unknown | unknow |
| ECCN code | - | - | EAR99 | EAR99 | - | EAR99 | EAR99 |