Photo DMOS-FET Relays

Photocouplers

Photointerrupters

Magnetic Contacts

Reed Relays

Reed Switch

LED

A coupler is consisted of one couple of emission and receiving elements. It makes use of light to transmit signals, and then makes electrical insulation between input and output. According to the feature of coupler, it can be considered as a relay or a signal transformer to completely isolate electrical current between input and output systems. Transmitting signals between two systems, Input and Output, are using light mode to achieve each other. Hence, it is the most important thing that two systems can be individual in grounding besides using same voltage.

Part Number Contact Form Electronic and Optical Characteristics (Ta=25 ) VF(v) IR( A) Iceo(nA) CTR(%) V(sat)(V) Riso() Tr( s) Tf( s) Input Viso (Vrms) IF=20mA VR=5V Vce=20V IF=5mA IF=20mA DC500V Vce=2V IC=2mA RL=100 Vce=5V IC=1mA Phototransistor Coupler LA211 Min        80   109     DC 1500 Typ 1.2               Max 1.4 10 100 300/600 0.4   3 3 LA212 Min        80         AC Typ 1.2          109     Max 1.4   100 300/600 0.4   6 6 LA311 Min        80   109     DC 1500 Typ 1.2               Max 1.4 10  100 300/600 0.4   3 3 LA312 Min        80          AC Typ 1.2          109     Max 1.4   100 300/600 0.4   6 6 Photodarlington Coupler LA213 Min        600         DC 1500 Typ 1.2               Max 1.4 10 100 7000 1 109   300 250 LA214 Min        600         AC Typ 1.2               Max 1.4   100 7000 1 109  300 250 LA313 Min        600         DC 1500 Typ 1.2               Max 1.4 10  100 7000 1 109  300 250 LA314 Min        600         AC Typ 1.2               Max 1.4   100 7000 1 109    300 250 Phototriac Part Number Contact Form Electronic and Optical Characteristics (Ta=25 ) VF(v) IR( A) IDRM1 (nA) VTM (V) dv/dt (V/ s) IFT (mA) IH ( A) Ton ( s) VINH (ms) IDRM2 ( A) VDRM ( V ) Input Viso (Vrms) LY251 Min            600           600 AC 1500 Typ 1.2       1500 17 400 8 5     Max 1.4 10 500 3.0   15   20 20 500   LY252 Min           600           400 AC 1500 Typ 1.2       1500 17 400 8 5     Max 1.4 10 500 3.0   15   20 20 500

 

 

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