通常指的是环形调制专用的二极管。就是正向特性一致性好的四个二极管的组合件。即使其它变容二极管也有调制用途，但它们通常是直接作为调频用。
| 型号 | 品牌 | 功能描述 |
|---|---|---|
| TA8573FN | Toshiba Semiconductor | |
| DMV1500 | STMicroelectronics | |
| DMV1500H | STMicroelectronics | |
| DMV1500HFD | STMicroelectronics | |
| DMV1500HFD5 | STMicroelectronics | |
| DMV1500M | STMicroelectronics | |
| DMV1500MF5 | STMicroelectronics | |
| DMV16 | STMicroelectronics | |
| DMV56 | STMicroelectronics | |
| FMV-3FU | Sanken electric | |
| DMV32 | STMicroelectronics | |
| DMV1500LF5 | STMicroelectronics | |
| DMV1500L | STMicroelectronics | |
| SP8110 | SIPEX[Sipex Corporation] | |
| SP8110ER | SIPEX[Sipex Corporation] | |
| FMQ-3GU | Sanken electric | |
| FFAF60A150DS | Fairchild Semiconductor | |
| FMP-3FU | Sanken electric | |
| FMP-2FUR | Sanken electric | |
| FMQ-2FUR | Sanken electric | |
| NX8563LAS614-CC | California Eastern Labs | |
| DMV1500MFD | STMicroelectronics | |
| DMV1500M04 | STMicroelectronics | |
| AK2572 | Asahi Kasei Microsystems | |
| DMV1500MFD5 | STMicroelectronics | |
| NX8563LA565-CC | California Eastern Labs | |
| NX8563LA | CEL[California Eastern Labs] | |
| NX8563LA303-CC | CEL[California Eastern Labs] | |
| NX8563LA303-CD | CEL[California Eastern Labs] | |
| NX8563LA311-CC | CEL[California Eastern Labs] | |
| NX8563LA311-CD | CEL[California Eastern Labs] | |
| NX8563LA318-CC | CEL[California Eastern Labs] | |
| NX8563LA318-CD | CEL[California Eastern Labs] | |
| NX8563LA326-CC | CEL[California Eastern Labs] | |
| NX8563LA326-CD | CEL[California Eastern Labs] | |
| NX8563LA334-CC | CEL[California Eastern Labs] | |
| NX8563LA334-CD | CEL[California Eastern Labs] | |
| NX8563LA342-CC | CEL[California Eastern Labs] | |
| NX8563LA342-CD | CEL[California Eastern Labs] | |
| NX8563LA350-CC | CEL[California Eastern Labs] | |
| NX8563LA350-CD | CEL[California Eastern Labs] | |
| NX8563LA366-CC | CEL[California Eastern Labs] | |
| NX8563LA366-CD | CEL[California Eastern Labs] | |
| NX8563LA373-CC | CEL[California Eastern Labs] | |
| NX8563LA373-CD | CEL[California Eastern Labs] | |
| NX8563LA381-CC | CEL[California Eastern Labs] | |
| NX8563LA381-CD | CEL[California Eastern Labs] | |
| NX8563LA389-CC | CEL[California Eastern Labs] | |
| NX8563LA389-CD | CEL[California Eastern Labs] | |
| NX8563LA397-CC | CEL[California Eastern Labs] | |
| NX8563LA397-CD | CEL[California Eastern Labs] | |
| NX8563LA405-CC | CEL[California Eastern Labs] | |
| NX8563LA405-CD | CEL[California Eastern Labs] | |
| NX8563LA413-CC | CEL[California Eastern Labs] | |
| NX8563LA413-CD | CEL[California Eastern Labs] | |
| NX8563LA421-CC | CEL[California Eastern Labs] | |
| NX8563LA421-CD | CEL[California Eastern Labs] | |
| NX8563LA429-CC | CEL[California Eastern Labs] | |
| NX8563LA429-CD | CEL[California Eastern Labs] | |
| NX8563LA437-CC | CEL[California Eastern Labs] | |
| NX8563LA437-CD | CEL[California Eastern Labs] | |
| NX8563LA445-CC | CEL[California Eastern Labs] | |
| NX8563LA445-CD | CEL[California Eastern Labs] | |
| NX8563LA453-CC | CEL[California Eastern Labs] | |
| NX8563LA453-CD | CEL[California Eastern Labs] | |
| NX8563LA461-CC | CEL[California Eastern Labs] | |
| NX8563LA461-CD | CEL[California Eastern Labs] | |
| NX8563LA469-CC | CEL[California Eastern Labs] | |
| NX8563LA469-CD | CEL[California Eastern Labs] | |
| NX8563LA477-CC | CEL[California Eastern Labs] | |
| NX8563LA477-CD | CEL[California Eastern Labs] | |
| NX8563LA485-CC | CEL[California Eastern Labs] | |
| NX8563LA485-CD | CEL[California Eastern Labs] | |
| NX8563LA493-CC | CEL[California Eastern Labs] | |
| NX8563LA493-CD | CEL[California Eastern Labs] | |
| NX8563LA501-CC | CEL[California Eastern Labs] | |
| NX8563LA501-CD | CEL[California Eastern Labs] | |
| NX8563LA509-CC | CEL[California Eastern Labs] | |
| NX8563LA509-CD | CEL[California Eastern Labs] | |
| NX8563LA517-CC | CEL[California Eastern Labs] |