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Single-In-Line (SIL/SIP) series 100 - 110

All Pickering reed relays feature the highest quality instrumentation grade reed switches making them suitable for the most demanding applications. Internal mu-metal magnetic screens (optional on Series 103) allow very high packing density. Diodes are optional.

Pickering Series 100

Low Thermal EMF Relays
Direct drive from CMOS

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Thermal EMF about 1 microvolt or less
• Low power consumption, ideal for portable equipment
• Encapsulated in a plastic package with internalmu-metal magnetic screen
• Wide range of switch configurations - 1 Form A,1 Form B, 2 Form A, 1 Form C
• Two pole relay requires the same board area as the single pole type
• Many benefits compared to industry standard relays. Learn more here >.
• Dry and mercury wetted switches are available with the same pin configuration and footprint
• Insulation resistance greater than 10E12 Ohms (1TOhms) for dry Form A devices
• 5, 12 and 24 volt coils are standard, with or without internal diode
• 100% tested for dynamic contact resistance

The Pickering Series 100 is a complete range of Single-in- Line (SIL) reed relays primarily intended for direct drive from 4000B CMOS or NMOS logic or similar low current sources. The mercury wetted relays in the range may be driven directly from TTL logic.

They are also useful for applications where conservation of current is important, for example, battery powered equipment.

The extremely low level of thermal EMF, about 1 microvolt or less, of the dry versions make them ideally suited to applications such as data acquisition or thermocouple switching.

An internal mu-metal magnetic screen is fitted to avoid the effects of magnetic interaction between relays.
If you do not require quite such high coil resistances or if a slightly smaller device is desired, please look also at our Series 101 which may be driven directly by 74HC or 74HCT logic.

Other special parts are also available that may be operated from 3 Volt logic, please contact our Sales Office for further information

Pickering Series 101


CMOS Drive High Voltage SIL Reed Relays

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Board space may be saved by eliminating the need for drivers
• Direct drive from 74HC logic
• Encapsulated in a plastic package with internal mu-metal magnetic screen
• Wide range of switch confi gurations - 1 Form A, 1 Form B, 2 Form A, 1 Form C
• Two pole relay requires the same board area as the single pole type
• Many benefits compared to industry standard relays. Learn more here >.
• Dry and mercury wetted switches are available with the same pin configuration and footprint
• 5, 12 and 24 Volt coils are standard, with or without internal diode
• Insulation resistance greater than 10E12 Ohms (1TOhms) for dry Form A devices
• 100% tested for dynamic contact resistance

The Series 101 have very high coil resistances. 5 Volt dry versions may be driven directly from 74HC or 74HCT logic without the need for additional drivers.

74HC logic will drive up to 4mA at 5 Volts, therefore a coil resistance of 1600 ohms is desirable to avoid running the IC at its maximum rating; 1600 ohms is the coil resistance of the single pole dry Series 101. They may be stacked on 0.3 inches pitch (7.6mm) and as they have an internal mu-metal magnetic screen, there is no risk of magnetic interaction problems

Both dry and mercury wetted switches are available in a range of configurations and coil voltages. The switches in the 2 Form A version are vertically stacked so the relay requires the same board area as the 1 Form A type.

A special 1 Form A, 5 Volt version is available with an even higher coil resistance of 3000 ohms. This is particularly suited to applications such as battery powered portable equipment as it requires a coil current of only 1.7 mA. This part, the 101-1-A-5/17 or 17D has the advantage of a lower level of thermal EMF of  3 microvolts or less.

Other special parts are also available that may be operated from 3 Volt logic.

Pickering Series 102

Subminiature Coaxical RF Reed Relays

SoftCenter ™ construction
• Highest quality instrumentation grade switches
• Form A (energize to make) or Form B (energize to break) configurations
• Up to 20 watts switching capability
• Many benefits compared to industry standard relays. Learn more here >.
• Insulation resistance greater than 10E12 Ohms (1TOhms)
• 5, and 12 Volt coils are standard, with or without internal diode
• 100% tested for dynamic contact resistance

The Series 102 is a range of subminiature coaxial reed relays for high frequency applications up to 3 GHz.

Two package types are available, both displaying outstanding RF performance in terms of low insertion loss, good isolation and excellent VSWR characteristics in 50 ohms systems. These relays have good coil drive levels making them ideal for portable applications or where space is at a premium. If an even smaller RF relay is required, look at the Series 109RF or 111 RF.

102M (Mu-metal) Package.
This device, constructed in the popular Single-In-Line format, features a mu-metal case allowing dense packaging without magnetic interaction problems. It has six pins for conventional PCB mounting. With careful printed circuit board layout this configuration will perform well up to 1.5 GHz, it is easy to use and will meet most requirements.

102F (Flatpack) package.
The 102F package dispenses with the leadframe connections to the switch and screen. These terminations are instead brought out axially from the ends of the device where they are soldered directly to the stripline. This
technique allows very accurate matching to the 50 ohms line and gives an excellent VSWR right up to 3 GHz.

Mounting method:
A small rectangular hole is punched into the printed circuit board or notched into the board edge to accommodate the package. The switch leads are then soldered directly to the 50 ohms stripline, the tin plated copper foil from the screen is soldered directly to the ground plane on the reverse side of the P.C.B. The coil connections are soldered directly to their tracks in the same way.

 

 

Pickering Series 103

Low Capacitance SIL Reed Relays
For stacking on 0.2 inches pitch

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Inter-terminal capacitances are a fraction of that for standard SIL relays
• Pin compatible with standard 0.2 inch SIL relays
• Optional internal mu-metal magnetic screen
• Optional internal coaxial electrostatic screen
• Many benefits compared to industry standard relays. Learn more here >.
• Insulation resistance greater than 10E12 Ohms (1TOhms)
• 100% tested for dynamic contact resistance

The Pickering Series 103 is a range of Single-in-Line reed relays intended for such applications as wide bandwidth A.T.E. switching matrices, attenuator switching or any other applications where exceptionally low levels of inter-terminal capacitances are required, for example, when carrying fast rise time pulse. A version with an internal co-axial electrostatic screen is available which is ideal for applications where capacitively coupled noise from switch to coil connections is undesirable. The co-axial device has a characteristic
impedance of 50 ohms and is also suitable for RF applications, HF performance is similar to the Series 102M.

The range consists of two basic types, the first achieves ultra low capacitance levels of typically 0.1pf from each switch connection to the coil and typically 0.08pf across the open switch contacts, by virtue of an internal coaxial electrostatic screen or guard connection. Where it is not possible to drive a guard, the second type has inherently low capacitance figures of typically 0.4pf from each switch connection to the coil and typically 0.1pf across the open switch contacts. These figures for the unguarded version are around one
quarter of those for standard SIL devices. An internal mu-metal magnetic screen is an option in both of these types.

The Series 103 may be stacked on 0.2 inches pitch and is pin compatible with all other 0.2 inch SIL relays. They are encapsulated in a plastic package using a very high resistivity resins.

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 very low level or “cold” switching applications.

Pickering Series 104

High Voltage SIL Reed Relays
For up to 3 kilovolts

SoftCenterconstruction
Highest quality instrumentation grade switches
Small size
• Internal mu-metal magnetic screen
• One or two switches in a single package
Form A (energize to make) or Form B (energize to break) configurations
• Many benefits compared to industry standard relays. Learn more here >.
Dry and mercury wetted switches available
5, 12 and 24 Volt coils are standard, with or without internal diode
100% tested for dynamic contact resistance

The Series 104 is a range of Single-In-Line reed relays intended for voltages that are beyond the capabilities of conventional SIL reed relays.

They are ideal for such applications as transformer or cable testing or any other automatic test equipment where high voltages are involved.

Where mains voltages are switched, for example to control and isolate S.C.R. or triac gates, they are an ideal choice.

One or two Form A (energize to make) or one Form B (energize to break) configurations are available.

The range features an internal mu-metal screen to eliminate problems that would otherwise be experienced due to magnetic interaction when they are closely stacked.

Three types of dry switches are available, capable of standing-off 1, 1.5 or 3kV d.c. The 3kV version has an increased clearance between the switch and coil pins to accommodate the higher voltage. Even higher voltage ratings are available to special order, please contact our sales office for further information.

Mercury wetted devices are also available for applications where bounce free switching is required. These are rated at 1500 volts d.c. minimum stand-off, 500 volts d.c. switching at up to 50 watts.

Pickering Series 105

SIL Reed Relays

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Encapsulated in a plastic package with internal mu-metal magnetic screen
• Wide range of switch confi gurations -
Form A, 1 Form B, 2 Form A, 1 Form C
• Two pole relay requires the same board area as the single pole type
• Dry and mercury wetted switches are available with the same pin configuration and footprint.
• Many benefits compared to industry standard relays. Learn more here >.
Insulation resistance greater than 10E12 Ohms (1TOhms) for dry Form A devices
5, 12 and 24 Volt coils are standard, with or without internal diode
100% tested for dynamic contact resistance

The Series 105 is a range of Single-in Line reed relays, available with a wide variety of switching configurations and switch types, including mercury wetted versions.

They feature internal mu-metal magnetic screens which allow high packing density without the risk of magnetic interaction problems.

The Pickering Series 100, 101, 103, 106, 107 and 108 all have the same pin locations as the Series 105. If a reduced coil power is desired, please consider our Series 100 and 101 which may be driven directly from CMOS logic. If a higher packing density is required, smaller devices are available in other Pickering SIL
ranges.

In addition to the relays shown on this brochure, many other special types are manufactured to meet customers specific requirements. Please contact our technical sales department for further information
or samples.

A useful tip
If there is a chance that you might want to use mercury wetted relays instead of dry relays at a later date, for example to increase switch ratings, lay out the PCB initially as though for the mercury wetted type with pin 1 uppermost. This allows uprating later without PCB changes. The mercury versions in the Series 105 have identical pin configurations to the dry types.

Pickering Series 106

Single-In-Line Reed Relays
For stacking on 0.2 x 0.8 inches pitch

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Internal mu-metal screen
• Insulation resistance greater than 10E12 Ohms (1TOhms) for Form A devices
• Dry switches available in both 1 Form A and 1 Form C configurations
• Many benefits compared to industry standard relays. Learn more here >.
• 5, and 12 Volt coils are standard, with or without internal diode
• 5 Volt coils are 500 ohms and may be driven directly from TTL logic
• 100% tested for dynamic contact resistance

The Series 106 is a range of Single-In-Line reed relays intended for stacking on 0.2 inches pitch. Their small size, superb contact resistance stability and ultra high insulation resistance, make these relays an ideal choice for Automatic Test Equipment.

They have an internal mu-metal screen to eliminate problems that would otherwise be experienced due to magnetic interaction. While the screening is not quite as efficient as the complete mu-metal can of the Series
107, 108 or 109, it is more than adequate for most applications (see explanation below).

If even greater packing density is required, smaller devices are available in other Pickering SIL ranges.

Magnetic Interaction - An explanation
Magnetic interaction between relays is normally expressed as a percentage increase in the voltage required to operate the relay, due to the extraneous fields from adjacent relay coils.

An unscreened SIL relay of this size would have an interaction figure of around 30 percent, i.e. the voltage required to operate it will increase by this amount when relays alongside are operated also. It may prove impossible to use such a relay at its nominal coil voltage in high density applications.

A Pickering Series 106 reed relay has an interaction figure of approximately 5 percent.

Pickering Series 107

Mini-SIL Reed Relays
For stacking on 0.2 inches pitch

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Encapsulated in patented mu-metal can
• Insulation resistance greater than 10E12 Ohms (1TOhms) for Form A devices
• Dry and mercury wetted switches available
• Many benefits compared to industry standard relays. Learn more here >.
• Wide range of switch confi gurations - 1 Form A, 1 Form B, 2 Form A, 1 Form C, and 2 Form C, see adjacent column
• For R.F. or high speed digital applications, 50 ohms coaxial devices are available in the same package style, see Series 102M
• 5, 12 and 24 Volt coils are standard, with or without internal diode
• 100% tested for dynamic contact resistance

The Series 107 Mini-SIL range of reed relays are intended for stacking on 0.2 inches (5.08mm) pitch.

Their small size, superb contact resistance stability and ultra high insulation resistance, make these relays an ideal choice for high quality instrumentation.

The mu-metal case ensures virtually total magnetic screening, see explanation below.

Both dry and mercury wetted switches are available in a wide range of configurations.

If even greater packing density is required, smaller devices are available in other Pickering SIL ranges (except for two pole changeover types)

Magnetic Interaction - An explanation
Magnetic interaction between relays is normally expressed as a percentage increase in the voltage required to operate the relay, due to the extraneous fields from adjacent relay coils.

An unscreened SIL relay of this size would have an interaction figure of around 30 percent, i.e. the voltage required to operate it will increase by this amount when relays alongside are operated also. It may prove impossible to use such a relay at its nominal coil voltage in high density applications.

Pickering Series 108

Micro SIL Reed Relays
For stacking on 0.15 x 0.8 inches pitch

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Encapsulated in a mu-metal can
• Internal mu-metal magnetic screen
• Insulation resistance greater than 10E12 Ohms (1TOhms) for Form A devices
• Dry switches available in 1 Form A, 2 Form A and 1 Form C configurations. 2 Form A types require the same board    area as 1 Form A
• Many benefits compared to industry standard relays. Learn more here >.
• 5 Volt coils are 500 ohms and may be driven directly from TTL logice
• 5, 12 and 24 Volt coils are standard, with or without internal diode
• 100% tested for dynamic contact resistance

The Pickering Series 108 is a range of magnetically screened single-in-line reed relays that stack on 0.15 inches (3.8mm) pitch, resulting in a 25 percent saving in board space over 0.2 inch (5.08mm) wide relays.

This means that it is possible to pack 33 percent more relays into the same board area.

Their small size, superb contact resistance stability and ultra high insulation resistance, greater than 1012 ohms for Form A devices, make these relays a popular choice for high quality instrumentation.

The device is encapsulated in a mu-metal can using a very high resistivity resin. Mu-metal is used rather than steel because of both its very high permeability and its low magnetic remanence. This construction totally eliminates the risk of magnetic interaction problems. Magnetic 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, it would therefore be totally unsuitable for applications where relays are to be packed densely. Pickering Series 108 have a typical interaction figure of only 1 percent.

Dry switches are available in 1 or 2 Form A (energize to make) and 1 Form C (change-over) configurations. 3, 5 and 12 Volt coils are available, 5 Volt coils have a resistance of 500 Ohms and may therefore be driven directly from TTL logic.

Pickering Series 109

Micro-SIL Reed Relays - Including coaxial types for stacking on 0.15 x 0.6 inches pitch giving SUPERB PACKING DENSITY

SoftCenter™ construction
• Highest quality instrumentation grade switches
• 1 Form A (energise to make)
• 2 Form A (energise to make)
• 1 Form C (change over)
• 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)
• Many benefits compared to industry standard relays. Learn more here >.
• Insulation resistance greater than 10E12 Ohms (1TOhms)
• 5 and12 Volt coils are standard, with or without internal diode

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 themore 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 remanence 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.

Pickering Series 110

V-SIL Reed Relays
For stacking on 0.15 x 0.4 inches pitch giving SUPERB PACKING DENSITY

SoftCenter™ construction
• Highest quality instrumentation grade switches
• Plastic package with internal mu-metal magnetic screen
• They take up the minimum of board area, conserving
   board space
• Insulation resistance greater than 10E12 Ohms (1TOhms)
• Many benefits compared to industry standard relays. Learn more here >.
• 5 and 12 Volt coils are standard, with or without internal diode
• 5 Volt coils of 500 ohms may be driven directly from TTL logice
• 100% tested for dynamic contact resistance

The Pickering Series 110 V-SIL (vertical single-in-line) is a range of magnetically screened single-in-line reed relays that stack on 0.15 inches by 0.4 inches pitch. The switches in this range are mounted vertically within the package, this allows the use of the same switch types as would normally be found in relays requiring a very much larger board area. Two types of Form A (energize to make) switches are available, a general purpose version and a type suitable for low level or “cold” switching applications

These relays require around one third the board area of the more usual 0.2 x 0.8 inch devices. These are your ideal choice for high density applications such as A.T.E. switching matrices or where very little board area is available. If a lower profile device is required, look at the Series 111 & 112.

The Series 110 is encapsulated in a plastic package using a very high resistivity resin. The relay has an internal mu-metal screen which totally eliminates the risk of magnetic interaction problems. 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 110 have a typical interaction figure of 5 percent.

3, 5 and 12 Volt coils are standard, with the option of an internal diode. 5 Volt coils have a resistance of 500 ohms and may be driven directly from TTL logic.

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