New high-current MOSFET relays, from Omron Electronic Components Europe, can support continuous loads of up to 3.3A AC, 6.6A DC. The new devices are squarely aimed at electromechanical relay replacement in smart meters, security, medical and industrial applications.
The high-current G3VM-61GR2 and G3VM-61HR1 match the performance of comparable Omron electromechanical relays, and exceed that of competing solid state relay alternatives. Key features are the low on resistance compared to electromechanical devices and their low susceptibility to external magnetic interference. A key feature is the fast switching time – with a Ton / Toff of just 3ms / 0.5ms for the GR2 and 5ms / 1ms for the HR1.
The Omron G3VM-61HR1 is aimed at higher power applications. Packaged in a 6-pin SOP it can switch currents of up to 3.3A AC at 60V and has an on-resistance of just 30 milliohms. Using a double current connection configuration for DC loads, the device can carry up to 6.6A DC with an on-resistance of just 8 milliohms. This is a 43% greater load than the previous G3VM-61HR.
The G3VM-61GR2, in a 4-pin SOP package, is designed for signal switching of digital and analog signals. It can switch currents of up to 1.7A AC, 70% more than the previous G3VM-61GR1, with an on-resistance of 80 milliohms.
Commenting, Andries de Bruin, senior European product marketing manager, Omron Electronic Components Europe, said: “A growing number of applications would prefer to adopt solid state MOSFET relays. Reasons include resistance to magnetic tampering, and low susceptibility to EMC interference in industrial environments. These devices set new standards for electrical performance, making them a viable alternative to mechanical relays in a host of new applications.”