Turn Off Voltage (Min):	1.25 VDC
Coil Resistance:	600 Ohms
Coil Power:	--
Contact Material:	Rhodium (Rh)
Operating Temperature:	-20°C ~ 70°C
Termination Style:	PC Pin
Mounting Type:	Through Hole
Features:	--
Release Time:	0.5ms
Operate Time:	1ms
Series:	S
Turn On Voltage (Max):	9 VDC
Switching Voltage:	20VAC, 20VDC - Max
Contact Rating (Current):	500mA
Contact Form:	SPST-NO (1 Form A)
Coil Voltage:	12VDC
Coil Current:	20.0mA
Coil Type:	Non Latching
Part Status:	Active
Packaging:	Tray

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Introduction to SAR9120 5

The SAR91205 is a reed relay from SAR Group designed for use in a variety of applications. It is an electromechanical device that can be used to control circuits and protect components from damaging electrical transients and over current. The SAR91205 is suitable for high-frequency switching, low-level current sensing, and pulse-width modulation (PWM) applications.

Types of Reed Relay

Reed relays are available in several different designs, each designed for a specific application. They include single-pole single-throw (SPST), double-pole single-throw (DPST), and three-pole single-throw (3PST) configurations. Other configurations, such as diode-strap and isolator relays, are also available.The basic differences between the various types of reed relays center on the number of poles, or contact points, and how they are wired. SPST relays have only one set of contacts that are either open or closed. DPST relays have two sets of contacts, one for each switch, and can either open or close both switches in a single operation. 3PST relays have three sets of contacts and can open or close all three switches in a single operation.

Application Fields of SAR91205

The SAR91205 is suitable for a wide range of applications, including high-frequency switching, low-level current sensing, and pulse-width modulation (PWM) applications.The SAR91205 can be used in a variety of industrial, automotive, and medical applications. It can be used to control switch circuits, to provide power to components, to sense current levels, and to provide low voltage protection.The SAR91205 is also widely used in automotive applications, where it is used to switch on and off systems such as power windows, headlights, and windshield wipers. It can also be used to sense current levels in airbags or other safety systems.The SAR91205 is also suitable for applications in the medical field, such as controlling the flow of fluids, monitoring vital signs, or controlling patient care systems.

Working Principle of SAR91205

The SAR91205 is a reed relay that uses a magnetic field to activate and deactivate the contacts.The relay consists of two or more cylindrical reeds made of a soft-magnetic alloy, which are hermetically sealed into a non-magnetic case. When a coil connected to the reeds is energized, the magnetic field created makes the two soft-magnetic reeds attract each other, forming a closed electrical circuit. When the coil is de-energized, the magnetic field disappears and the two reeds separate, resulting in an open circuit.The advantage of using reed relays is that they can switch very quickly and are very reliable. Due to their very low actuation power requirement they can also be used in battery-powered applications.

Conclusion

The SAR91205 is a versatile reed relay from SAR Group that is suitable for a wide range of applications. It is available in SPST, DPST, and 3PST configurations and is suitable for high-frequency switching, current sensing, and pulse-width modulation applications. The SAR91205 uses a magnetic field to activate and deactivate the contacts and has a very low actuation power requirement, making it suitable for battery-powered applications.

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