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● Switching of DC only or both AC/DC
There are two kinds in switching load type. One is DC only type and the other is
AC/DC type. DC only type has one MOS FET. And AC/DC type has two MOS FETS.
These two MOS FETs connected series with source common, AC/DC bi-directional
signal switching is possible.
● High Reliability and Long life span
PhotoDMOS-FET Relay does not have the mechanical contact. Therefore there is no
defacement of the contact. And life is practically unlimited.
● Compact, thin, light and high density mounting
Due to compact (DIP/SMD or SOP package), thin and light, high density mounting
(reduction of mounting area and volume) is possible. The thickness of the SOP
package is around 2 mm. Mechanical relays cannot provide this kind of thinness.
● Calm
Due to Non-contact, there is no sound like mechanical relays.
● No chattering and Bounce
Due to Non-contact, there is no chattering and no bounce like mechanical relays.
● High switching speed
Due to semiconductor relays, high speed switching is available.
● Low Off-set voltage
● Control low-level analog signals
Due to MOS FET's output, Closed-circuit Off-set voltage is extremely low to enable to
control low-level analog signals without distortion.
● No need of the power supply to drive MOS FET
Since output MOS FETs are driven by photodiode array directly, a power supply to
drive output MOS FETs is not necessary. This results in easy circuit design and small
PC board area. PhotoDMOS-FET Relay
● Stable On-resistance
Due to semiconductor, On-resistance is stable comparing with mechanical relays.
● Low Off-state leakage current
● Controls various types of loads
● Control various types of load such as relays, lamps, Light emitting diodes, heaters,
motors, solenoids.
● Extremely high Input-Output isolation
Input and output are extremely isolated by the optical coupling.
● Vibration proof and Shock proof
Due to semiconductor, the products are free from vibration and shock.
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OMRON/歐姆龍