CPC1718J

Series:	CPC, OptoMOS®
Packaging:	Tube
Part Status:	Active
Mounting Type:	Through Hole
Circuit:	SPST-NO (1 Form A)
Output Type:	DC
Voltage - Input:	1.2VDC
Voltage - Load:	0V ~ 100V
Load Current:	6.75A
On-State Resistance (Max):	75 mOhms
Termination Style:	PC Pin
Package / Case:	ISOPLUS264™
Supplier Device Package:	ISOPLUS264™

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CPC1718J Application Field and Working Principle of Solid State Relays

Solid state relays are specialized relays that feature no moving parts. Inside them, they make use of semiconductors instead of traditional relay contactors to switch electrical currents. They are more reliable, easier to manufacture and have higher switching speeds and longer life spans compared to electromechanical relays. CPC1718J is an example of such solid state relays that are commonly used in various industrial, automation, and other electronic applications. This article will cover the CPC1718J’s application field and working principle.

application field of CPC1718J

The CPC1718J is a popular versatile solid state relay that is designed to meet a variety of industrial applications, as well as commercial and consumer purposes. Depending on the model, some CPC1718J relays can handle up to 220V/240V AC with a switching current of up to 2A without the need for an additional heat sink. Some also allow for DC switch control, and are therefore suitable for automotive, solar energy and other DC applications.It is also suitable for a wide variety of industrial photosensitive controlling applications including die-casting machines, electric heating systems, injection molding machines, anti-theft systems, household appliances, AC and DC motor speed control and UPS (uninterruptible power supply) systems.

Working principle of CPC1718J

At the core of the CPC1718J is a SCR (Silicon Controlled Rectifier) and a TRIAC (Triode for Alternating Current) device. An SCR is a semiconductor switch that works as a latching switch, meaning it stays in the switched on state until it is turned off by an external signal. It is usually used for AC-DC-AC conversion applications.The TRIAC is also a solid state switching device that is capable of controlling both AC/DC currents over a range of switching frequencies. It can be used to control the speed and power of a motor, dim a light or switch various AC/DC applications.Together, the SCR and TRIAC tightly control the amount of AC and/or DC current passing through the conductor. This is achieved by allowing for precise switching of power to load/sensing circuits using a zero voltage crossing technique. This type of technique helps ensure that the circuit always remains in the controlled state even during power failure transitions.In short, the CPC1718J is a highly versatile and reliable solid state relay. It can be used in many industrial applications such as die-casting machines, electric heating systems, injection molding machines, anti-theft systems, household appliances, AC and DC motor speed controls, UPS systems and more. The working principle of the CPC1718J is based on an SCR and TRIAC device that features zero voltage crossing technique. This ensures that the circuit remains in the controlled state even during power failure transitions.

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