pickering pickering electronics limited stephenson road clacton-on-sea co15 4nl england telephone (uk) 01255 428141 (international) +44 1255 428141 fax. (uk) 01255 475058 (international) +44 1255 475058 micro-sil ? reed relays for stacking on 0.15 x 0.6 inches pitch giving superb packing density including coaxial types series 109 pickering series 109 the mu-metal packaged series 109 and 109rf and the plastic packaged series 109p and series 109ph, are magnetically screened single-in-line reed relays that stack on 0.15 inches x 0.6 inches pitch. the adjacent column gives further details of the device types available. these relays require little more than half the board area of the more usual 0.2 x 0.8 inch devices, this allows around 80 percent more relays onto your board. these are the ideal choice for high density applications such as a.t.e. switching matrices or where very little board area is available. mu-metal, due to its high permeability and low magnetic remanance is used to provide magnetic screening. this eliminates problems that would otherwise occur due to magnetic interaction. interaction is usually measured as a percentage increase in the voltage required to operate a relay when two additional relays, stacked one each side, are themselves 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 therefore be totally unsuitable for applications where dense packing is required. pickering series 109 and 109rf have a typical interaction figure of 1 percent. series 109p and 109ph have a typical figure of 3 percent. two types of form a (energize to make) switches are available, a general purpose switch (switch no.1) and a vacuum sputtered ruthenium switch (switch no.2) which is ideal for low level or cold switching applications. 5 volt coils normally have a resistance of 500 ohms and 12 volt coils are 1000 ohms. a sensitive single pole 5 volt device with a 1000 ohms coil is also available. internal back e.m.f. clamping diodes are an option for all types. the small size of these relays often makes it possible to increase the functionality of existing designs without increasing the size of printed circuit boards. top (left to right): 109p, 109-1-a, 109-2-a bottom: 109-1-b, 109rf coaxial, 109ph insulation resistance greater than 10 12 ohms. 5 and 12 volt coils are standard, with or without internal diode. description of device types see reverse side of data sheet for dimensional details. series 109 1 form a, 2 form a, 1 form b. similar in construction to the pickering series 107 and series 108. these patented devices are encapsulated in mu-metal cans using very high resistivity resins. series 109rf coaxial 1 form a. coaxial relays in mu-metal cans. they are available with a characteristic impedance of either 50 or 75 ohms. for r.f. up to 2ghz, telecoms, video or high speed digital switching up to 500 mbits/sec. contact technical sales office for further data. series 109p 1 form a. the electrical specification and dimensions are identical to the 1 form a series 109. they are encapsulated using the same resins within a plastic package which features an internal mu- metal magnetic screen. series 109ph 1 form a. the electrical specification is again identical but the mu-metal screened plastic package is slightly different having an increased stand-off from the printed circuit board. small feet on each corner of this relay lift the underside of the component 0.05 inches (1.25mm) from the board surface rather than the more usual 0.02 inches (0.5mm). these components are often used in large blocks with little or no clearance between them, for example in an ate matrix. flux residues can degrade insulation resistance values, the increased clearance is useful to facilitate easier cleaning after flow soldering. the move away from cfc cleaning solvents makes this feature particularly attractive when using less aggressive solvents or aqueous washing. configurations available 1 form a (energise to make) 2 form a (energise to make) 1 form b (energise to break) 1 form a coaxial 50 ohms impedance (energise to make) 1 form a coaxial 75 ohms impedance (energise to make) 109/p15
pickering pickering electronics limited, stephenson road, clacton-on-sea, co15 4nl. england. tel. +44 (0)1255 428141 fax. +44 (0)1255 475058 web: www.pickering.co.uk email: sales@pickering.co.uk switch ratings the contact ratings for each switch type are shown below. special high sensitivity 5 volt model standard 5 volt coils have a resistance of 500 ohms. a special model is available featuring a 1000 ohms, 5 volt coil. this type is identified by a letter "l" in the part number, signifying low coil power, (see table below). series number of reeds switch form coil voltage (+l for low coil power version) switch number diode if fitted (omit if not required.) 109 - 1 - a - 5 / 2 d order code the following example indicates data required to process your order:- pin configuration and dimensional data dimensions in inches (millimetres in brackets). drawings are actual size. switch no.1 is intended for general pupose use. switch no.2 is intended for switching low levels. it is the ideal switch for a.t.e. systems where cold switching techniques are often used. when an internal diode is required, the suffix d is added to the part number as shown in the table. if a diode is not required, the d suffix should be omitted. relay data and type numbers. 1 2 max. carry current 1.2 amp. 1.2 amp. max. switch volts 200 200 max. switch current 0.5 amp. 0.5 amp. power rating 10 watts 10 watts switch no package style 1 mu-metal package 109-1-a-? pin 1 0.595 (15.1) p i c k e r i n g micro - sil relay 0.26 (6.6) 0.01 (0.25) 0.02 (0.5) 0.145 (3.7) 0.125 (3.3) pins 0.15 (3.8) pitch 0.02 (0.5) 1 2 3 4 1 form a energize to make 1 form b energize to break package style 2 mu-metal package 109-1-b-? 0.01 (0.25) 0.02 (0.5) 0.125 (3.3) 0.02 (0.5) pin 1 p i c k e r i n g micro - sil relay 0.35 (8.9) 0.145 (3.7) 0.595 (15.1) pins 0.15 (3.8) pitch 1 2 3 4 package style 3 mu-metal package 109-2-a-? 0.01 (0.25) 0.02 (0.5) 0.125 (3.3) 0.02 (0.5) pin 1 p i c k e r i n g micro - sil relay 0.35 (8.9) pins 0.1 (2.54) pitch 0.145 (3.7) 0.595 (15.1) 1 2 3 4 5 6 2 form a energize to make coaxial energize to make package style 4 mu-metal package 109rf50-1-a-? 109rf75-1-a-? for performance data of coaxial versions, please contact pickering technical department 0.595 (15.1) p i c k e r i n g micro - sil relay pin 1 0.26 (6.6) 0.01 (0.25) 0.02 (0.5) 0.125 (3.3) pins 0.1 (2.54) pitch 1 2 3 4 5 6 0.02 (0.5) 0.145 (3.7) 0.595 (15.1) standard plastic package (internal mu-metal screen) 109P-1-A-? pin 1 0.26 (6.6) 0.01 (0.25) 0.02 (0.5) 0.125 (3.3) pins 0.15 (3.8) pitch 0.02 (0.5) p i c k e r i n g 109P-1-A-5/2d package style 5 1 2 3 4 1 form a energize to make 0.145 (3.7) 1 2 3 4 1 form a energize to make high stand-off plastic package (internal mu-metal screen) 109ph-1-a-? pin 1 0.595 (15.1) 0.27 (6.85) 0.01 (0.25) 0.02 (0.5) 0.125 (3.3) pins 0.15 (3.8) pitch p i c k e r i n g 0.05 (1.25) 109ph-1-a-5/2d package style 6 0.145 (3.7) alternative pin configurations alternative pin configurations are available, for example, 1 form a relays with pins on 0.1 inches (2.54mm) pitch to enable insertion into standard sil sockets. please contact our technical sales office for further information. type number 5 5 12 5 5 12 5 12 5 12 5 12 5 12 5 12 5 5 12 5 5 12 5 5 12 5 5 12 coil volts 0.12 ohms 5 device type max. contact resistance (initial) 0.15 ohms 0.15 ohms 0.15 ohms 0.12 ohms 0.12 ohms 0.12 ohms 0.14 ohms 0.14 ohms 0.15 ohms 0.15 ohms 0.12 ohms 0.12 ohms 0.15 ohms 0.15 ohms 0.12 ohms 0.12 ohms 0.15 ohms 0.15 ohms 0.15 ohms 0.12 ohms 0.12 ohms 0.12 ohms 0.15 ohms 0.15 ohms 0.15 ohms 0.12 ohms 0.12 ohms 0.12 ohms 500 1000 1000 500 1000 1000 375 750 375 600 375 600 375 600 375 600 500 1000 1000 500 1000 1000 500 1000 1000 500 1000 1000 750 coil resistance (ohms) 1 form a switch no. 1 1 form a switch no. 2 1 form a switch no. 1 1 form a switch no. 2 1 form a switch no. 1 1 form a switch no. 2 1 form b switch no. 2 2 form a switch no. 2 50 ohms coaxial switch no. 1 50 ohms coaxial switch no. 2 75 ohms coaxial switch no. 1 75 ohms coaxial switch no. 2 109-1-a-5/1d 109-1-a-5l/1d 109-1-a-12/1d 109-1-a-5/2d 109-1-a-5l/2d 109-1-a-12/2d 109-2-a-5/2d 109-2-a-12/2d 109rf50-1-a-5/1d 109rf50-1-a-12/1d 109rf50-1-a-5/2d 109rf50-1-a-12/2d 109rf75-1-a-5/1d 109rf75-1-a-12/1d 109rf75-1-a-5/2d 109rf75-1-a-12/2d 109P-1-A-5/1d 109P-1-A-5l/1d 109P-1-A-12/1d 109P-1-A-5/2d 109P-1-A-5l/2d 109P-1-A-12/2d 109ph-1-a-5/1d 109ph-1-a-5l/1d 109ph-1-a-12/1d 109ph-1-a-5/2d 109ph-1-a-5l/2d 109ph-1-a-12/2d 109-1-b-5/2d package style 1 1 2 3 4 4 4 4 5 5 6 6 example of packing density the following actual size example illustrates the relative packing densities of standard 0.2 x 0.8 inch sil relays compared wit h pickering series 109 reed relays when packed into an area of 1.2 x 2.4 inches. important: unscreened relays are unsuitable for dense packing in this way. using pickering series 109 relays series 109 relays series 109 relays series 109 relays series 109 relays in this pcb area you can fit 32 relays 32 relays 32 relays 32 relays 32 relays using standard 0.2 x 0.8 inch relays 0.2 x 0.8 inch relays 0.2 x 0.8 inch relays 0.2 x 0.8 inch relays 0.2 x 0.8 inch relays in this pcb area you can fit 18 relays 18 relays 18 relays 18 relays 18 relays 32 series 109 relays 18 standard relays
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