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Using HSR312 / HSR412 Solid State Relays
 
Using HSR312 / HSR412 Solid State Relays


 

Using HSR312 / HSR412 Solid State Relays

 


The HSR312 and HSR412 devices consist of a AlGaAs infrared emitting diode optically coupled to a power MOSFET detector which is driven by a photovoltaic generator. The devices are housed in a 6-pin dual-in-line package. The HSR312L and HSR412L employ an active current limit circuitry enabling the device to withstand current surge transients.


Using HSR312 / HSR412 Solid State Relays

Features
4,000 VRMS Isolation
Wide operating voltage range
250V (HSR312, HSR312L)
400V (HSR412, HSR412L)
Solid-State Reliability
Bounce-Free Operation
4000V ESD Rating (HBM)
UL and CSA approved

Applications
On/Off Hook Switch
Replacement for Mechanical Relays
Dial Out Relay
Ring Injection Relay
General Switching
Ground Start

If your relay load requirements are not too heavy (over 1/2 Amp on the contacts) I can recommend the Fairchild HSR312 which I use in several projects. Opto-isolated, up to 400V for the load, super-low "contact" resistance, and bi-directional (AC capable) on the output.

U1 PIC Microcontrollers PIC16F819 1
V1 Power (battery box) 4.5V 1
PSR1 ~ PSR4 Solid state relay HSR312 4
CN1 ~ CN4 Connectors Male Monorarukonekuta 3.5Φ 4
CN5 Connectors Female Monorarukonekuta 3.5Φ 1
CN6 Connectors 4-pin connector 1
R1, R2, R3, R4 Resistance 1KΩ 1/4W 4
R5, R6, R7, R8 Resistance 2KΩ 1/4W 4
D1, D2, D3, D4 LED (Light Emitting Diode) 5mm Red 4
C1, C2 Capacitors 0.1μF 2
X1 CERALOCK 20MHz 1
SW1 Switches Slide Switch 1


Using HSR312 / HSR412 Solid State Relays


Using HSR312 / HSR412 Solid State Relays






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