The S110 is a bi-directional, single-pole, single-throw, normally open multipurpose relay. The circuit is composed of one LED on the input side which activates an optically coupled IC on the output-controlling the firing angle of two back-to-back SCRs.

High temperature is a common environmental stress in many solid state relay applications. Application engineers must have a solid understanding of how a relay can be expected to fail if the temperature exceeds the rating of the package. This paper aims to compare the theoretical and experimental failure modes of SCR-output relays vs. MOSFET-output relays at high temperature.

The AD6C250 is a bi-directional, single-pole, single-throw, normally open multipurpose solid-state relay. It is designed to replace electromechanical and reed relays in special applications that call for very fast switching rates.

The TD3063 Consists single input LED optically coupled to a zero-volt crossing triac driver. The TD3063 provides high input-to-output isolation and is designed to drive high-powered triacs. Typical include interfacing logic level control signals to equipment powered from 110Vac and 220Vac lines.

The AD4C211-L is a bi-directional, double-pole, single-throw, normally open multipurpose solid-state relay. It is designed to replace electromechanical relays in general purpose switching applications. The relay consists two integrated circuits, each driving a pair of rugged source-to-source enhancement type DMOS transistors.

The SP540 is a single-pole, single-throw, normally open multipurpose DC solid-state relay and is designed to replace electromechanical relays in critical applications that require fast switching and solid state reliability.

The SAT600 consists of a phototransistor optically coupled to a pair of light emitting diodes for AC input operation. Optical coupling between the input LEDs and output phototransistor allows for high isolation levels while maintaining low-level AC signal control capability.

The M272 is a bi-directional, single-pole, single-throw, normally open multipurpose solid-state relay in a miniature 4-pin small outline package. It is designed to replace electromechanical relays in general purpose switching applications. The relay consists of an integrated circuit that drives two rugged source-to-source enhancement type DMOS transistors - optically coupled to a light emitting diode.

Solid State Optronics, Inc. AC relays have been designed with a driver circuit that controls the operation of two back-to-back silicon controlled rectifiers (SCRs), each responsible for switching one half of the AC cycle. If an AC signal is examined, the turn on, turn off, and zero-volt switching characteristics can be shown.

The AD6C223 is composed of two distinct relays; one normally open and one normally closed sharing a common input, making this a true 1 Form device. Each relay has a bi-directional, single-throw contact controlled simultaneously by an LED driver.