8 MOSFET Output Manufacturers in 2022
This section provides overview, applications, and principles of mosfet output. Also, please take a look at the list of 8 mosfet output manufacturers and their company rankings.
Table of Contents
What Is a MOSFET Output?
A MOSFET Output is a semiconductor relay that combines an LED and a MOSFET. When an optical MOSFET with a photovoltaic cell like a solar cell receives light, its gate capacitance is charged, and the relay conducts by the electromotive force.
Like a photocoupler, it can be electrically isolated while controlling the ON/OFF of a switch.
The structural difference from the photocoupler is whether a phototransistor or an optical MOSFET is used as the light-receiving element.
Uses of MOSFET Outputs
Since MOSFET Outputs do not involve mechanical opening and closing, they are more reliable and durable than conventional mechanical relays, and they are also quieter in operation. Also, while mechanical relays have been miniaturized this year due to their structure, MOSFET Outputs are expected to replace conventional mechanical relays because they do not have this limitation.
Although large capacitance has been a bottleneck for MOSFET Outputs, recent technological innovations have made it possible to use MOSFET Outputs in PLCs and other devices that need to switch large currents.
Principle of MOSFET Outputs
MOSFET Outputs consists of three elements: an LED, a photodiode, and a MOSFET.
When a signal current is applied to the input terminal, the LED emits light, and the photodiode receives light, generating a voltage. When the LED light goes off, not only is no charge generated, but the voltage between the gate and source immediately drops due to the forced release of gate charge by the discharge switch.
There are two types of MOSFETs: one that is always off and one that is always on. The former can be used as a make-contact relay and the latter as a break-contact relay. MOSFET Outputs can also be used as AC switches by connecting two MOSFET sources facing each other.
Since the conduction characteristics of photo MOSFETs are independent of the amount of input current, they can control current ON and OFF even with tiny input currents.
List of 8 MOSFET Output Manufacturers
*Including some distributors, etc.
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Infineon Technologies AG
Solid state relay
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MOSFET Output Manufacturer Ranking
*Including some distributors, etc.Number of Employees
- OMRON Electronic Components: 29,020
- Toshiba Electronic Devices & Storage: 23,100
- Panasonic Industry Europe: 1,000
Newly Established Company
- IXYS Integrated Circuits: 2021 (2 years ago)
- Toshiba Electronic Devices & Storage: 2017 (6 years ago)
- Refurvo LLC: 2016 (7 years ago)
Company with a History
- OMRON Electronic Components: 1933 (90 years ago)
- Panasonic Industry Europe: 1988 (35 years ago)
- Bright Toward Industrial: 1988 (35 years ago)
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