Pickering Electronics Series 116 116-1-A-5/2D

The Pickering Series 116 is a range of Single-in-Line relays intended for very high density ap pli ca tions such as A.T.E. switching matrices or multiplexers. They have a switch rating of 10 Watts, 0.5 A and are pin compatible with the Pickering Series 117 which have a lower power rating of 3 Watts and a lower profi le height of 0.38 inches (9.65 mm). Switches have sputtered ruthenium contacts making them ideal for low level or cold switch ing applications. 1 or 2 pole, Form A (energize to make) versions are available. The single pole version uses the same switch and coil assembly as the Pickering Series 112. Single switch versions require a board area of only 0.15 inches x 0.27 inches. This is one quarter of the board area of the industry standard 0.2 x 0.8 inches Single-in-Line packge. The very small size of these relays often makes it possible to in crease the functionality of existing designs without increasing the size of printed circuit boards. The relays feature an internal mu-metal magnetic screen. Mu-metal has the advantage of a high permeability and low magnetic remanence and eliminates problems that would otherwise occur due to magnetic interaction. Interaction is usually meas ured as a per cent age in crease in the voltage re quired to operate a relay when additional relays, stacked each side, are them selves operated. An unscreened device mounted on this pitch would have an interaction figure of around 40 percent. Relays of this size without magnetic screening would there fore be totally unsuitable for applications where dense packing is required. 3 volt, 5 volt or 12 volt coils are available. An internal Back E.M.F suppression diode is available as an option.