Clacton-on-Sea, England. Pickering Electronics announced it will be showcasing its latest high-voltage reed relays at the Teradyne Users Group vendor fair on May 2, 2017, in San Francisco.
Pickering Electronics said it has expanded its high-voltage single-in-line (SIL/SIP) reed relay range to include three new series that all offer higher packing density: the Series 67 and 68 dry reed-relay range for up to 10 kV and the Series 119 micro-SIL range for up to 3 kV.
Pickering Electronics will be showcasing its latest high density range, including the addition of two pole reed relays to their established Series 115, at Semicon Korea on 8 – 10, February 2017 on stand 2811.
The newly released Series 115, 2 Form A relays can switch up to 15 Watts, 1 Amp and require a board area of only 0.15 x 0.4 inches (4mm x 10mm), an increase of only 50% over the single pole version. These relays are the ideal choice for high density two pole matrices and multiplexers.
Two switch types are available. Both types have sputtered ruthenium contacts for long life and high reliability. Switch type number 1 is better suited for general purpose applications. It has a layer of copper beneath the ruthenium to help dissipate the heat from the contact area. This gives an improved current inrush handling ability. Switch type number 2 should be chosen for low level or ‘cold’ switching applications.
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Pickering Electronics, a leading provider of Reed Relays, will be showcasing its latest high density range at the International Test Conference at booth 216, 15 – 17 November 2016.
The Pickering Series 115, Series 116 and Series 117 are three ranges of small Single Pole (1 Form A) reed relays ideal for the construction of high density matrices or multiplexers. These three ranges have identical pin configurations allowing a common PCB for all types but allowing the designer a range of switch ratings according to which part is fitted. The reed switches are vertical within the package which permits a common footprint with a board area of only 3.8mm x 6.6mm. Only the profile height changes with the increasing power or current ratings.
If used correctly, a reed relay is a superbly reliable device. The switch contacts are hermetically sealed, so they don’t suffer from oxidization or contamination in the same way as an open electromechanical relay.
In reality, relays are often considered slightly mundane and little thought is given to them, which sometimes leaves them vulnerable. This guide will help you to maximize the reliability of your design.
Pickering Electronics, a leading provider of Reed Relays, will be showcasing its latest high density range at electronica on 8 – 11, November 2016 in booth B1.550.
These three ranges have identical pin configurations allowing a common PCB for all types but allowing the designer a range of switch ratings according to which part is fitted. The reed switches are vertical within the package which permits a common footprint with a board area of only 3.8mm x 6.6mm. Only the profile height changes with the increasing power or current ratings.
The Series 117 has a height of 9.5mm and is rated at 0.5 Amps switching at 5 Watts. The Series 116 has a height of 12.5mm and is rated at 0.5 Amps switching at 10 Watts. The Series 115 has a height of 15.5mm and is rated up to an impressive 1.0 Amp switching at 20 Watts. Double pole (2 Form A) versions are also available in Series 116 and 117.
One benefit of the very small size of these relays is that it often makes it possible to increase the functionality of existing designs without increasing the size of the printed circuit boards.
All feature instrumentation grade reed switches with sputtered ruthenium contacts, making them an ideal choice for low level or ‘cold’ switching applications.
They have the option of an internal diode across the coil connections for Back EMF suppression and feature Pickering’s unique SoftCenter® construction as well as an internal mu-metal magnetic screen. Mu-metal has the advantage of high permeability and low magnetic remanence and eliminates problems that would otherwise occur due to magnetic interaction. Relays of this size without magnetic screening would be totally unsuitable for applications where dense packing is required.
You can view the original article here.
Philip Stoten interviews Graham Dale, Technical Director of Pickering Electronics at their booth at SemiconWest 2016.
Pickering Electronics’ newly released Series 67 and 68 reed-relay range are available for up to 10-kV stand-off, 7.5-kV switching, with an option of either PCB or flying-lead switch connections.
Similar in specification to the long established Pickering Series 60/65, these new relays are manufactured in a single-in-line (SIL) format using former-less coils, which dispense with the more usual coil supporting bobbin, allowing a smaller package than similar rated devices.
The unusual package design does present some interesting packing possibilities for high-density applications such as multiplexers and matrices in instrumentation and test systems. See the nearby image of Pickering Series 67 relays mounted on a 3U PXI 12-way high-voltage multiplexer module that illustrates these possibilities.
Available as standard are 5-, 12-, and 24-V coils, and other voltages can be supplied to special order, as can variations in the lead length of the Series 68 range. The relays are suitable for high-voltage transformer and cable tests and some electro-medical applications such as defibrillators.
Pickering Electronics is a worldwide manufacturer and distributor of high-quality reed relays for ATE, low thermal EMF, RF switching, and other specialist applications, available in surface mount, single-in-line (SIL), dual-in-line (DIL), and many other popular package styles.
Learn more about Pickering Electronics and its reed-relay ranges at SEMICON West in July 12-14 in San Francisco.
The original article can be seen here.
Pickering Electronics has expanded its high voltage Single-in-line (SIL) Reed Relay range to include three new series, that all offer higher packing density. The Series 67 and 68 dry Reed Relay range for up to 10kV, and the Series 119 Micro-SIL range for up to 3kV, will all be showcased this January at Semicon Korea on stand 2509.
The recently released Series 67 and 68 Reed Relay range are available for up to 10kV stand-off, 7.5kV switching, with an option of either PCB or flying lead switch connections. These new relays are manufactured in a SIL format using former-less coils which dispense with the more usual coil supporting bobbin allowing a smaller package than similar rated devices.
The unusual package design presents some interesting packing possibilities for high density applications such as multiplexers and matrices in instrumentation and test systems. 5, 12 and 24 volt coils are available as standard, and other voltages can be supplied to special order, as can variations in the lead length of the Series 68 range. The relays are suitable for high voltage transformer and cable test and some electro-medical applications such as defibrillators.
The new Series 119 is the industry’s smallest high voltage SIL Reed Relay for up to 3kV stand-off. These can be stacked side-by-side for maximum packing density (all Pickering SIL Relays have full magnetic screening allowing side by side operation).
This new relay is intended for voltages considerably higher than standard small SIL relays, ideal for Cable and Backplane Testers and Mixed signal ATE. Pickering also offer other Single-in-Line High Voltage dry Reed Relays with the Series 104 for use up to 3kV stand-off, 25 Watts switching.
To find out more about the new Reed Relays visit Pickering on stand 2509 at Semicon Korea 2016, or alternatively go to the website.
The original article can be seen here.
Reed relays contain a reed switch, a coil for creating a magnetic field, an optional diode for handling back EMF from the coil, and an encapsulating package with connection terminals. In many ways, a reed relay, if used correctly, is a near perfect device with a low-resistance metallic switch path and inherent isolation between the control voltage operating the coil and the signal being switched.
The Reed Switch Explained
The reed switch has two shaped metal blades made of a ferromagnetic material (roughly 50:50 nickel iron) and a glass envelope that holds the metal blades in place and provides a hermetic seal that prevents any contaminants from entering the critical contact area inside the glass envelope. Most (but not all) reed switches have open contacts in their normal state.