ARJ20A4H

Turn On Voltage (Max):	3.38 VDC
Coil Resistance:	101 Ohms
Coil Power:	200 mW
Contact Material:	Gold Plating
Operating Temperature:	-30°C ~ 70°C
Termination Style:	Gull Wing
Mounting Type:	Surface Mount
Features:	--
Release Time:	5ms
Operate Time:	5ms
Turn Off Voltage (Min):	0.45 VDC
Series:	ARJ
Switching Voltage:	30VDC - Max
Contact Rating (Current):	300mA
Contact Form:	DPDT (2 Form C)
Coil Voltage:	4.5VDC
Coil Current:	44.4mA
Coil Type:	Non Latching
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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High Frequency (RF) relays have long been used in a variety of fields, including radar, navigation, radio technology, telecommunications, and low-power communication systems. ARJ20A4H is an advanced high-frequency relay that has extended the possibilities of these relay applications.The ARJ20A4H RF relay is a rugged home-position, solid state relay that uses unique design techniques to provide high switching capacity. Its switching is through a combination of electromechanical and electronic techniques, which combine to increase its contact reliability and reduce noise. The relay has a unique contact pattern and gold-plated contacts that provide low-RDT (residual thermal transfer) and long service life.The ARJ20A4H relay also has a wide range of options for contact rating, operating voltage, and sensitivity. It can handle up to 300 volts AC/DC and is rated at .3A AC and 5A DC, with a switching capacity up to 16kHz. By providing a variety of contacts selections, from low-impedance, low-resistance, uniform contact resistance and higher resistance options, the ARJ20A4H relay can be tailored to meet almost any high-frequency switching requirement.The working principle of the ARJ20A4H relay is based on the concept of dynamic characterization. The system utilizes two different sensors for switching; an electromechanical reed switch and an electronic sensor. When the relay is turned on, the reed switch is activated and an electronic signal is sent to the relay\'s control system. Upon receiving this signal, the electronic sensor begins to supply energy to the relay\'s switching mechanism. This energy creates a magnetic flux which allows the contact points in the relay to make a positive connection, and activate the system.As with all high-frequency relays, the ARJ20A4H relay is highly recommended for applications that require a high level of reliability, such as airborne or military systems. The relay is also suitable for use in modern telecommunications networks, particularly in handling high levels of interference or where very fast switching times are required. The widespread usage and compatibility of the ARJ20A4H, along with its high switching capacity, reliability, and long service life, make it an excellent choice for high-frequency switching needs.

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