1150 pages

PICKERING SERIES 115
Single-in-Line reed relays
10 or 15 Watts switching - Very high packing density
Stacks on 0.15 x 0.27 inches pitch
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3 V sion
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FEATURES
SoftCenter™ construction (see opposite)
Plastic package with internal mu-metal
magnetic screen
They take up the minimum of board area,
conserving board space
0.145 nominal (3.70)
0.15 maximum (3.81)
0.26 nominal (6.60)
0.27 maximum (6.86)
Insulation resistance greater than 1012 Ω
0.61 maximum (15.5)
3, 5 or 12 Volt coils with optional internal
diode
100% tested for dynamic contact resistance
for guaranteed performance
The reed switch/coil assemblies used in this series are the
same as used in the long established and well proven, Series
109 and 109P.
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.
Pickering SoftCenter™ Construction
TYPICAL PICKERING CONSTRUCTION
Encapsulation
Shell
PICKERING
They are pin compatible with the Pickering Series 116 and 117
but have a slightly higher profile.
Dimensions in Inches
(Millimetres in brackets)
Internal mu-metal magnetic screen
permitting high packing density without
magnetic interaction
Actual size
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. Relays of this
size without magnetic screening would be totally unsuitable
for applications where dense packing is required.
Former-less
operating coil
Delicate
glass/metal
reed switch seal.
Must be
protected
Diode
Switch type number 2 should be chosen for low level or
'cold' switching applications.
The relays 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 increase
the functionality of existing designs without increasing the
size of printed circuit boards.
115-1-A-5/2D
The Pickering Series 115 is a range of Single-in-Line relays
intended for very high density applications such as A.T.E.
switching matrices or multiplexers.
Pin 1
Instrumentation
grade
reed switch
TYPICAL COMPETITOR’S CONSTRUCTION
www.pickeringrelay.com
Highest quality instrumentation grade
switches
No mu-metal
magnetic screen
Internal
mu-metal
magnetic
screen
Encapsulation Soft inner
Shell
encapsulation
material
to protect
reed switch
Bobbinless
self
supporting
coil to
maximise
magnetic drive
3 volt, 5 volt or 12 volt coils are available. An internal Back
E.M.F suppression diode is available as an option.
pickering
www.pickeringrelay.com
Very hard
moulding material
High magnetic
interaction
with adjacent
relays
Reed switch
Diode
Coil winding
Hard outer
encapsulation
material
Coil supporting
bobbin,
wastes space
and reduces
magnetic drive
pickering
115/06/09