ARXP104H

Turn On Voltage (Max):	3.38 VDC
Coil Resistance:	101 Ohms
Coil Power:	200 mW
Contact Material:	Gold Plating
Operating Temperature:	-40°C ~ 70°C
Termination Style:	PC Pin
Mounting Type:	Through Hole
Features:	--
Release Time:	6ms
Operate Time:	10ms
Turn Off Voltage (Min):	0.45 VDC
Series:	ARXP
Switching Voltage:	30VDC - Max
Contact Rating (Current):	500mA
Contact Form:	SPDT (1 Form C)
Coil Voltage:	4.5VDC
Coil Current:	44.4mA
Coil Type:	Non Latching
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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Introduction

High frequency (RF) relays are electromechanical devices designed to switch signals at their nominal rated frequency up to a certain maximum frequency. The ARXP104H is a single pole, double throw RF relay that is capable of handling frequency between DC and 1GHz, making it ideal for a wide range of applications. This article will provide an overview of the ARXP104H application field and working principle, explaining the physics behind why the ARXP104H is so versatile and reliable.

Application Fields

The ARXP104H is ideal for a wide range of applications where high frequency RF signals need to be switched. Examples of these applications include the operation of radio receivers, use in test and measurement equipment, and radar systems. It can also be used for wireless communication and in antenna switching.The ARXP104H’s high frequency range means that it can handle a wide variety of signal types. It can switch RF signals in the VHF/UHF range (30MHz-1GHz), as well as signals from other sources such as telephone, data, and audio signals.

Design and Construction

The ARXP104H has an industry-standard form factor for RF relays. It is composed of two parts: the contact system and the actuator. The contact system consists of a pair of silver-plated contact arms which form the switching mechanism. The ARXP104H’s design ensures that the contact tips are always within 10 mils of each other, ensuring reliable contact integrity and an endurance of greater than 1 billion cycles.The actuator is a spring-loaded plunger which is activated when the voltage across the contact system reaches its threshold. The actuator has an integral ferrite core to reduce eddy currents, providing efficient signal transmission.

Working Principle

The working principle of the ARXP104H is based on the fact that capacitive reactance increases with higher frequency. This means that when the signal’s frequency is within the operating range of the ARXP104H (DC-1GHz) its capacitive reactance will increase, decreasing the current flowing through the contact system. The actuator then senses this decrease in current and activates, switching the signal.

Conclusion

The ARXP104H is an RF relay designed to switch signals in the frequency range DC-1GHz. Its design and construction provides reliable contact integrity and endurance, while its principle of operation ensures it is able to handle a wide variety of signal types. This makes the ARXP104H an ideal choice for a variety of applications, from radio receivers and test equipment to wireless communication and antenna switching.

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