ARJ20A4HX

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

High Frequency (RF) Relays

The ARJ20A4HX is a High Frequency (RF) Relay, which is designed for switching between higher current and higher voltage circuits with low insertion loss in Radio Frequency (RF) applications. It is ideal for switching frequency components off/on such as antennas, amplifiers, detectors, amplifiers, oscillators and switch matrixes in frequencies up to 1.5GHz.

Applications

The ARJ20A4HX is used extensively in communications systems. It can be used in a range of applications such as wireless communication, base station switching, antenna switching, satellite communication, medical equipment, point-to-point radio, cable TV and many other RF applications.

Working Principle

The ARJ20A4HX is a simple constant-impedance design that consists of two non-magnetic parallel connected capacitor networks on the two ports (COM and NO). There is no electromagnet design present like in other relays.

When the relay is in the open state, the capacitance between the COM and NO terminals is bridged by three high quality, low leakage capacitors. This bridging action allows for RF signals to pass through the circuit with low insertion loss.

When the relay is closed, the three capacitors are disconnected and the port impedance is set to match a set impedance value. This allows the signal to flow only through the circuit and still maintain low insertion loss.

The relay is powered on and off using a TTL pulse, which controls the state of the relay. It has a full isolation of 1.2kV and a moderate contact resistance from .1Ω to .8Ω, depending on the contact size.

Conclusion

In conclusion, the ARJ20A4HX High Frequency (RF) Relay is an excellent product for applications in radio frequency areas such as wireless communication, base station switching, antenna switching, satellite communication, medical equipment, point-to-point radio, and cable TV. It is able to provide low insertion loss and uses a TTL pulse to switch between the open and closed state. It requires no electromagnet design, which leads to simpler electronics and lower power consumption.

The specific data is subject to PDF, and the above content is for reference