LB363 Series LoopBack Relay With Built-in AC Bypass Capacitors

PublishTime：2022-04-12

The LoopBack Series relay combines two DPDT electromechanical relays in one package that includes an internal bypass path for Automated Test Equipment (ATE) applications. The LoopBack combines the technology of two Teledyne RF/GRF303 Series relays which eliminates the need for external PCB traces in loop back test applications. This innovation results in superior signal integrity and RF performance while taking minimal board space. The LB363 Series is designed for digital signaling application and provides excellent signal integrity up to 16 Gbps data rates.
The internal in-line capacitors allow you to eliminate the footprints for external components, while performing AC bypass functions internal to the relay. The capacitors used feature excellent signal integrity as well as low loss high frequency performance.
A typical loop-back load board application uses the Device Under Test (DUT) to test itself. In this method, the transmitter from the DUT is connected through a loop back path to the receiver of the DUT. The double pole design of the LoopBack relay is perfectly suited for differential signaling, allowing the relay to provide transmit and receive signals and their inversions to the DUT or through the bypass path.
The internal structure of the LoopBack relay reduces the number of discontinuities and shortens the signal path during loop back testing, providing lower insertion loss and higher signal integrity performance than two RF/GRF303 Series relays. In the normally closed mode (de-energized) the LoopBack relay provides four normally closed contacts. When energized, the moving contacts are connected together across the loop back structure to provide two through paths. The normally closed contacts have similar performance to RF/GRF303 Series relays.
This LoopBack relay is available in a surface mount ground shield and stub pins/or J-lead configuration to provide improve high data rate and high requency performance, as well as improved repeatability.
The DC LoopBack configuration provides internally shorted paths to allow “auxiliary” full spectrum signal routing.

Brand of Product：	Teledyne Defense Electronics
Part#：	Series LB363 、 LB363 、 LB363 Series More Part#
Product Category：	LoopBack Relay More
Application：	More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：
Language：	English Chinese Chinese and English Japanese
Date of Creation：	012016
Version Number：
Data Encoding：
Data Size：	984 KB

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