PS7200K-1A

Series:	PS, OCMOS
Packaging:	Tube
Part Status:	Obsolete
Mounting Type:	Surface Mount
Circuit:	SPST-NO (1 Form A)
Output Type:	AC, DC
Voltage - Input:	1.2VDC
Voltage - Load:	0V ~ 40V
Load Current:	200mA
On-State Resistance (Max):	2 Ohms
Termination Style:	Gull Wing
Package / Case:	4-SOP (0.173", 4.40mm)
Supplier Device Package:	4-SOP (2.54mm)

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Solid State Relays: PS7200K-1A application fields and working principle

Solid state relays (SSRs) have been around since the 1920s, and they offer many advantages over traditional electromechanical relays. They are activated without the need for physical contact, they are more compact and reliable, and they are generally longer lasting than electromechanical relays. SSRs can also provide switching speeds up to several hundredkHz.The PS7200K-1A is a particular type of SSR, designed for applications in the telecommunications and military industries. It is designed to switch digital signals in applications that require precision and speed. The PS7200K-1A has a unique combination of features that make it particularly suitable for such applications.The PS7200K-1A is a "zero crossing" type SSR. This means that it can make a transition from its "on" to its "off" state without causing electromagnetic interference. This is especially important in critical applications such as radar. The PS7200K-1A is also equipped with an inhibitor circuit that prevents false triggering events. This feature is important in applications that require extremely stable switching.The PS7200K-1A has an optically-isolated signal input. This isolated signal ensures that the PS7200K-1A exhibits higher immunity to electrical noise. The isolation also ensures that the control signals cannot be affected by external electrical noise. The isolation also allows the control signals to remain consistent regardless of power or load variations.The PS7200K-1A has a wide operating temperature range, making it suitable for a variety of environments. The PS7200K-1A is also equipped with a transient protection circuit. This circuit protects the relay from surge voltages caused by high-energy switching events. This is especially useful in applications where power transients may cause damage.The PS7200K-1A also features low turn-on and turn-off times. This makes it ideal for applications that require switching speeds up to several hundred kHz. The PS7200K-1A can also tolerate a wide range of power input (from 2.2 VDC to 50 VDC).The PS7200K-1A is also equipped with a number of safety features. Its "substantially open" housing prevents electric shocks while providing IP40-level protection against dust and water infiltration. The PS7200K-1A also features a built-in failsafe circuit that can be used to control the output status in the event of a fault.The PS7200K-1A is used in a wide range of applications where speed, precision, and reliability are paramount. It is used in switch gear, for industrial automation, and in a variety of medical and laboratory equipment. The working principle of the PS7200K-1A is based on the optically-isolated signal input. The input signal is transformed into an optical signal by an LED. This optical signal is then directed to a series of reflecting cavities in the relay housing. The signal is reflected and focused on a photodiode. This photodiode then changes its state based on the input signal, activating the relay contact. In this way, the PS7200K-1A is able to provide precise switching action, without the need for physical contact. Given its wide operating temperature range, its transient protection, its fast switching times, and its safety features, the PS7200K-1A is an ideal SSR for a wide range of applications. Its unique combination of features makes it especially suitable for telecommunications and military applications.

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