PhotoMOS® relays
PhotoMOS® relays for automotive and industrial applications
PhotoMOS® relays with a MOSFET output enjoy an almost unlimited lifetime if used according to the specifications. Moreover, they are extremely reliable, unaffected by vibration, and their On-resistance remains stable throughout their entire lifetime. In addition to our broad product line-up for the industrial market, automotive-qualified types are also available.
PhotoMOS® technology
The basic construction of the PhotoMOS® relay can be seen in the illustration. Light emitted from an LED on the input side passes through an isolator that is permeable to light and is detected by a solar cell. Via a trigger circuit, the solar cell‘s output voltage controls the gates of two source-coupled MOSFETs at the output. This arrangement allows PhotoMOS® relays to switch both AC and DC loads. The integration of MOSFET technology in PhotoMOS® relays significantly differentiates them from semiconductor relays with triacs or transistors at the output.
Downloads
| Name | File type | Size | Date | Language |
|---|---|---|---|---|
| PhotoMOS®, Phototriac Coupler, Solid State Relays - Catalog | Catalog | 5MB | 24.04.2020 | English |
| PhotoMOS® selector guide | Relay | 366KB | English | |
| PhotoMOS® Flyer | Relay | 2MB | English | |
| Cautions for use - PhotoMOS® | Relay | 261KB | English | |
| PhotoMOS® - Schematic and wiring diagrams | Relay | 170KB | English | |
| PhotoMOS® terminology | Relay | 42KB | English | |
| PhotoMOS® technical information | Relay | 4MB | English | |
| Relay Short Form | Catalog, Shortform | 6MB | 16.12.2022 | English |
| Application Note: MSL Cross-Reference for SMT Devices | Flyer, Application note | 1MB | 26.01.2022 | English |
| General PhotoMOS® Product Information | Flyer, General information | 915KB | 20.12.2022 | English |
