Switches, Relays & Keypads


Relays for loopback testing

7 March 2012 Switches, Relays & Keypads

Teledyne Relays has introduced an hermetically sealed LoopBack relay combining two DPDT electromechanical relays in one package that includes an internal bypass path for automated test equipment (ATE) applications. The device combines two Teledyne RF300 series relays, which eliminates the need for external PCB traces in loop-back test applications.

The LoopBack relay is designed for digital signalling applications and provides high signal integrity up to 12 Gbps data rates. It is available with two different internal paths: through and AC bypass. The through path provides a loopback path across high-performance contact material, while the AC bypass path adds a coupling capacitor across each loopback path.

In-line capacitors allow designers to eliminate the footprints for external components, while performing AC bypass functions internal to the relay. The capacitors used features excellent signal integrity as well as low-loss, high-frequency performance. The double-pole design of the LoopBack relay is well suited for differential signalling, allowing one relay to provide transmit and receive signals and their inversions to the device under test or through the bypass path.

In addition to the through-hole mount (LB363 series), the relay is available in a surface mount configuration with stub leads and a ground shield (GLB363 series). The surface mount ground shield provides improved, high-data-rate and high-frequency performance, as well as improved repeatability. Various ground pin configurations for the through-lead models are available upon request.

The LB363 series measures 8,51 x 20,45 x 9,52 mm, excluding leads, and weighs 4,53 g. The GLB363 series measures 9,53 x 12,96 x 10,54 mm, including ground shield, and weighs 5,10 g.

For more information contact Andrew Hutton, RF Design, +27 (0)21 555 8400, [email protected], www.rfdesign.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

3,75 GHz RF inductor
RF Design Passive Components
The ceramic chip wire wound inductor from Coilcraft features a DC resistance of 1 O, a DC current of 175 mA, and a self-resonant frequency of 3,75 GHz.

Read more...
IoT in a Box
RF Design Telecoms, Datacoms, Wireless, IoT
RAKwireless and Datacake have collaborated on a solution called ‘Real IoT in a Box’ to address the complexities of deploying IoT solutions, particularly when it comes to LoRaWAN.

Read more...
Direction-finding antenna board
RF Design Telecoms, Datacoms, Wireless, IoT
u-blox’s ANT-B11 Bluetooth 5.1 direction-finding antenna board is a compact Bluetooth Low-Energy angle-of-arrival antenna and sensor board combined.

Read more...
Compact switching joystick
Brabek Switches, Relays & Keypads
The MHS Series from Ruffy Controls is a momentary four-way or eight-way switching joystick with an optional pushbutton validation feature.

Read more...
DC to 40 GHz termination
RF Design Enclosures, Racks, Cabinets & Panel Products
The TS400HM from Inmet by Spectrum Control is a 50 O termination that operates from DC to 40 GHz, and can handle an average input power of 1 W.

Read more...
Multi-band satellite modules
RF Design Telecoms, Datacoms, Wireless, IoT
The UBX-R52/S52 Series from u-blox are Multi-band LTE-M/NB-IoT/Satellite Modules that operate in 3GPP cellular bands from 450 MHz to 2,46 GHz and 1,5 to 1,7 GHz for satellite connectivity.

Read more...
IO Ninja debugging tool
RF Design News
Tibbo has released a major update to IO Ninja, its versatile communications debugging tool for Windows, Linux, and macOS.

Read more...
5G RedCap and its current environment
RF Design Telecoms, Datacoms, Wireless, IoT
5G RedCap is expected to be a key driver of the transition from 4G to 5G technology for many IoT applications.

Read more...
2 GHz RF amplifier
RF Design Telecoms, Datacoms, Wireless, IoT
The GRF9461 from Guerrilla RF is an RF gain block that operates from 40 MHz to 2,0 GHz and provides a gain of 19,8 dB with a noise figure of 1,8 dB.

Read more...
All-new NarrowBand-Internet of Things platform
RF Design Telecoms, Datacoms, Wireless, IoT
Cavli’s C42GM is an LTE CAT M/NB1/NB2 compatible IoT-Smart Module that comes with an integrated eSIM (MMF2) provision resulting in its globe roaming capability.

Read more...