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What are the differences between PhotoMOS relays and PhotoMOS CC type relays?

ID:
1174
Issued:
Sep 1st, 2016
Updated:
Mar 30th, 2018

What are the differences between PhotoMOS relays and PhotoMOS CC type relays?

ANSWER

The major difference is their <insulation methods>.

 

Their input methods, which are related to the insulation methods, are as follows.

 

u PhotoMOS relays: Current drive

 

u PhotoMOS CC type relays: Voltage drive

 

Please see the comparison list below.

 

<PhotoMOS          CC type comparison>

                                                      PhotoMOS relays           PhotoMOS CC type relays

 

Insulation method                          Optical insulation           Capacitor coupled isolation

(Insulation elements)                      LEDs                             Capacitors

Drive method                                 Current                           Voltage

Input restriction resistance             Required                        Not required

Shape                                                                                     Low profile as no LEDs are mounted

 

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