2920-12-121

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High Frequency (RF) Relays have the ability to switch and amplify signals over a wide range of frequencies, and thus play an important role in a variety of modern applications. The 2920-12-121 is a hermetically sealed, low profile, single-pole, double throw, RF relay used for spacecraft applications, as well as other specialized applications where high frequency signals must be routed. It has been designed as a low-cost solution for high-power applications in the frequency range of 0.1 – 6 GHz.

The first and foremost application of 2920-12-121 RF relays is for spacecraft applications. Satellite transponders need to switch between multiple beams aboard the spacecraft and on Earth. As each beam has its own specific frequencies, these relays help to switch from one beam to another without signal loss. Similarly, it can be used to switch from the antennas, receivers, and transponders connected to the satellite’s pre-amplifiers. This also serves to protect sensitive unit components like transmitters and receivers from damaging high power signals.

The 2920-12-121 can also be used for a range of other specialized applications, such as high frequency digital signal routing, transceiver switching for portable radio devices, RF switching for antenna diversity systems, RF switching and boosting for cell phones, and RF switching in receiver systems. In addition, it can be used for high speed serial communications links, digital imaging systems, and satellite communications.

The working principle of the 2920-12-121 is based on the theory of static reluctance. This type of relay has a static magnetically actuated core. When a weak magnetic field is applied, the core moves up or down depending on its direction. This changes the resistance of the relay and the signal is routed from one side to the other. The static core is made of ferrite material and is precision-engineered for uniform strength and sensitive response. The hermetically sealed body of the 2920-12-121 also helps to keep out, and protect against, moisture, dust, and other common environmental contaminants.

The 2920-12-121 RF relays have been designed for extremely low power consumption. Operating current is typically very low, typically just a few milliamperes, and the power dissipation rating is under one watt. This makes them ideal for applications in which power requirements are critical. They also have a broad range of switching times, from a few milliseconds up to several seconds, so it can accommodate applications with different speeds and performance requirements.

In summary, the 2920-12-121 RF relay is a high frequency, hermetically sealed, low profile, single-pole, double throw, RF relay used for spacecraft applications, as well as other specialized applications where high frequency signals must be routed. Its working principle of static reluctance allows for low power consumption and high frequency switching, while the hermetically sealed body helps protect sensitive components from harsh environmental conditions. The broad range of switching times makes the 2920-12-121 RF relays suitable for a wide range of applications.

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