Pickering Reed Relays

Reed Relays from Pickering Electronics – The Reed Relay Specialists

Single-In-Line (SIL / SIP) Pickering Reed Relays
  • SoftCenter™ (Soft Inner Encapsulation)
  • Built-In Mu-Metal Magnetic Screening
  • Formerless Coils
  • Highest Grade Reed Switches

Description

Single-In-Line (SIL / SIP) Pickering Reed Relays

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.

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Series 119 SIL Pickering Reed Relay
SERIES 119
High Voltage Instrumentation

Up to 3kV stand-off
Very small board area 0.15 x 0.6 inches (3.8 x 15.2mm)
Sputtered ruthenium switches with 10 watts rating


Dimensions 1A
L=0.595in. (15.1mm.)
W=0.145in. (3.7mm.)
H=0.26in. (6.6mm.)
Series 118 SIL Pickering Reed Relays
SERIES 118
Portable Instrumentation

High coil resistance – 5 volt coil up to 2200 Ohms
Small board area 0.2 x 0.33 inches (5.08 x 8.38mm)
10 watts or 15 watts rating

Dimensions 1A
L=0.33in. (8.38mm.)
W=0.21in. (5.08mm.)
H=0.61in. (15.5mm.)
Series 117 SIL Pickering Reed Relay
SERIES 117
Very High Density Instrumentation & ATE

Smallest board area. 1A version requires 0.15 x 0.27 inches (3.8mm x 6.8mm)
1 or 2 switches with 3 Watts rating
5 Volt coils with optional diode


Dimensions 1A
L=0.26in. (6.6mm.)
W=0.145in. (3.7mm.)
H=0.385in. (9.8mm.)
Series 116 SIL Pickering Reed Relays
SERIES 116
Very High Density Instrumentation & ATE

Smallest board area. 1A version requires 0.15 x 0.27 inches (3.8mm x 6.8mm)
1 or 2 switches with 10 Watts rating
5 or 12 Volt coils with optional diode


Dimensions 1A
L=0.26in. (6.6mm.)
W=0.145in. (3.7mm.)
H=0.49in. (12.45mm.)
Series 115 SIL Pickering Reed Relay
SERIES 115
Very High Density Instrumentation & ATE

Smallest board area. 0.15 x 0.27 inches
(3.8mm x 6.8mm)
Up to 15 Watts, 0.75 Amps rating
5 or 12 Volt coils with optional diode


Dimensions 1A
L=0.26in. (6.6mm.)
W=0.145in. (3.7mm.)
H=0.61in. (15.5mm.)
Series 114 SIL Pickering Reed Relays
SERIES 114
High Power Switching – Up to 40 watts

Will replace mercury wetted relays in some applications
1 Amp switching, 2 Amps carry
AC Mains voltage switch


Dimensions 1A
L=0.95in. (24.1mm.)
W=0.245in. (6.3mm.)
H=0.32in. (8.1mm.)
Series 113 SIL Pickering Reed Relay
SERIES 113
High Density Instrumentation & ATE

Requires a small area of only 0.15 x 0.5 inches
(3.8mm x 12.5mm)
10 Watts Form A or 3 Watts Form C switches
Smallest Form C reed relay


Dimensions 1A 1C
L=0.49in. (12.5mm.)
W=0.145in. (3.7mm.)
H=0.26in. (6.6mm.)
Series 112 SIL Pickering Reed Relays
SERIES 112
High Density Instrumentation & ATE

Requires a broad area of only 0.15 x 0.4 inches (3.8mm x 10.2mm)
Pins on 0.1 inch pitch – Compatible with Pickering Series 110 & 111
10 Watts switch


Dimensions
L=0.39in. (10mm.)
W=0.145in. (3.7mm.)
H=0.43in. (11mm.)
Series 111 & 111P SIL Pickering Reed Relay
SERIES 111 & 111P
High Density Instrumentation & ATE

Requires a board area of only 0.15 x 0.4 inches (3.8mm x 10.2mm)
Pins on 0.1 inch pitch as 110 & 112
3 Watts switch in Mu-metal or Plastic package (not illustrated)


Dimensions all types
L=0.39in. (10mm.)
W=0.145in. (3.7mm.)
H=0.26in. (6.6mm.)
Series 110 SIL Pickering Reed Relays
SERIES 110 
High Density Instrumentation & ATE

Requires a board area of only 0.15 x 0.4 inches (3.8mm x 10.2mm)
Pins on 0.1 inch pitch – Compatible with Pickering Series 111 & 112
10 Watts switch


L=0.39in. (10.mm.)
W=0.145in. (3.7mm.)
H=0.6in. (15.0mm.)
Series 109 & 109P Pickering Reed Relay
SERIES 109 & 109P
High Density Instrumentation & ATE

Requires a board area of only 0.15 x 0.6 inches (3.8mm x 15.2mm)
10 Watts switches in Mu-metal or Plastic package


Dimensions 1A 1C Coax
L=0.595in. (15.1.mm.)
W=0.145in. (3.7mm.)
H=0.26in. (6.6mm.)
Series 108 SIL Pickering Reed Relays
SERIES 108
Instrumentation & ATE

Requires a board area of 0.15 x 0.8 inches (3.8mm x 20.3mm)
10 Watts Form A or 3 Watts Form C switches in Mu-metal package


Dimensions 1A 1C
L=0.79in. (20.1mm.)
W=0.145in. (3.7mm.)
H=0.26in. (6.6mm.)
Series 107 SIL Pickering Reed Relay
SERIES 107
Instrumentation & ATE

Requires a board area of 0.2 x 0.8 inches (5.1mm x 20.3mm)
Dry or Mercury Wetted switches in patented Mu-metal package
Unique 2 Form C SIL relay


Dimensions 1A 1C
L=0.75in. (19.1mm.)
W=0.19in. (4.8mm.)
H=0.30in. (7.6mm.)
Series 106 SIL Pickering Reed Relays
SERIES 106
Instrumentation & ATE

Requires a board area of 0.2 x 0.8 inches (5.1mm x 20.3mm)
10 Watts Form A or 3 Watts Form C switches


Dimensions all types
L=0.75in. (19.1mm.)
W=0.19in. (4.8mm.)
H=0.32in. (8.1mm.)
Series 105 SIL Pickering Reed Relay
SERIES 105
Instrumentation & ATE

Requires a board area of 0.27 x 0.8 inches (6.8mm x 20.3mm)
Dry or Mercury Wetted switches


Dimensions 1A 1C
L=0.75in. (19.1mm.)
W=0.26in. (6.6mm.)
H=0.32in. (8.1mm.)
Series 104 SIL Pickering Reed Relays
SERIES 104
High Voltage – Up to 3kV

Requires a board area of 0.25 x 1.0 inches (6.4mm x 25.4mm)
Ideal for Cable Test ATE
Dry or Mercury Wetted switches


Dimensions 1A
L=0.95in. (24.1mm.)
W=0.246in. (6.3mm.)
H=0.32in. (8.1mm.)
Series 103 SIL Pickering Reed Relay
SERIES 103 
Low Capacitance

Requires a board area of 0.25 x 1.0 inches (6.4mm x 25.4mm)
Form A with one fifth the usual switch to coil capacitance
Coaxial guarded version


Dimensions all types
L=0.75in. (19.1mm.)
W=0.19in. (4.8mm.)
H=0.32in. (8.1mm.)
Series 102 SIL Pickering Reed Relays
SERIES 102
RF Switching

50 Ohms Independence – Mu-metal SIL package or plastic flatpack
SIL – Up to 1.5 GHz
Flatpack – Up to 3 GHz


Dimensions 1ACoax
L=0.75in. (19,1.mm.)
W=0.19in. (4.8mm.)
H=0.30in. (7.6mm.)
Series 101 SIL Pickering Reed Relay
SERIES 101
Direct Drive From 74 HC or HCT Logic

5 Volt coil for 1A dry version is 1600 0r 3000 Ohms
Dry or Mercury Wetted switches


Dimensions 1A 1C
L=0.79in. (20.1mm.)
W=0.29in. (7.4mm.)
H=0.37in. (9.4mm.)
Series 100 SIL Pickering Reed Relays
SERIES 100
Low Thermal EMF

Ideal for data acquisition – Typical Thermal EMF of 1 microvolt or less
5 Volt coil for 1A or 1C dry version is 3300 Ohms (2700 Ohms for 2A)
Dry or Mercury Wetted switches


Dimensions 1A 1C
L=0.95in. (24.1mm.)
W=0.4in. (10.2mm.)
H=0.5in. (12.7mm.)

Features

The Advantages of Pickering Reed Relays

Soft Centres - Pickering reed relays

Soft Centres (SoftCenter ™)
Pickering reed relays are encapsulated using a soft inner material to greatly reduce physical stresses on the glass/metal seal of the reed switch capsule. Different materials have different expansion characteristics and the very hard compounds used by most manufacturers can cause stresses that can damage seals or distort the reed switch thereby changing switch blade alignment. This will degrade contact resistance stability and life expectation.
Built in, Mu-Metal Magnetic Screening

Reed switches are operated by the magnetic field from a coil which is wound around the reed switch capsule. Without a magnetic screen, this field will spread some way outside the confines of the relay package and will de-sensitize other reed relays mounted alongside. As an example, an unscreened relay mounted on 0.2 inches (5.08mm) pitch, will require a coil voltage about 25 percent higher to operate it, when other relays alongside are also in an operated state.
This falls to between 1 and 5 percent, according to type, if magnetically screened. Smaller Pickering relays on 0.15 inches (3.81mm) pitch, would have an interaction fi gure as high as 40 percent if unscreened. The effect of magnetic interaction is compounded when temperature is also considered.
The operating coil is wound using copper wire which has a co-efficient of resistance of approximately 0.4 percent per degree Centigrade. This means that a temperature increase of 50 degrees Centigrade will increase the coil resistance by a further 20 percent. The coil current and therefore the level of magnetic field, will fall by this same amount. A corresponding increase in drive voltage will therefore be required to generate the necessary magnetic fi eld to operate the reed switch. MAGNETIC SCREENING IS ABSOLUTELY ESSENTIAL FOR SMALL REED RELAYS.

Formerless Coils
Relay operating coils are commonly wound on bobbins. The great majority of Pickering relays are manufactured with self supporting coils, thus avoiding the space required for these bobbins. In the case of the smaller relays types, this gives around 50 percent more room for the coil winding, allowing the use of less sensitive reed switches with their inherent advantages of higher operating and restoring forces. In some ranges, this technique allows Pickering to achieve extremely high coil resistance figures.

Highest Grade Reed Switches

Pickering relays feature the very highest quality ‘instrumentation grade’ reed switches to meet the exacting demands and long life required of today’s equipment manufacturers. Pickering relays are 100 percent tested for all operating parameters including, operate and release voltages, operate, release and contact bounce times, contact resistance, contact resistance stability and insulation resistance.

How To Get The Best From Reed Relays
If used correctly a reed relay is a superbly reliable device. The switch contacts are hermetically sealed and do not suffer from oxidization in the same way as an open electro-mechanical relay. If you follow the tips below, it will help you to achieve a reliable design with a long life.

Life Expectancy
In typical applications, for example, switching 10 volts at 10 mA, the life of dry reed relays will be in excess of 100 million operations. We can help you to choose the best relay for your application.
Calculate how many operations you require from the relay. If it is operated once a second, 24 hours a day, it is worth noting that there are about 31.5 million seconds in a year. The most common reliability problems are caused by abusive loads. – Read On!

Capacitive Loads
When capacitive loads are switched, there is a danger that the initial surge current will exceed the rating of the switch, thereby shortening the life of the relay. To prevent this, a surge limiting device, the most simple being a resistor, should be used. Long cable runs should also be considered, they can sometimes have a surprisingly high capacitance.

Inductive Loads
Arcing can occur when a reed switch is used to break a current to an inductive load. The back EMF can cause contact damage and should be eliminated by the use of an RC snubber, varistor or in the case of a DC load, a diode. Contact our technical department for further details.

Lamp Loads
A tungsten fi lament lamp may have an inrush of up to 10 times its steady state current. Surge current should be limited to the rating of the relay with a resistor. This will also increase the life of the lamp.

Coil Data
The standard must ‘operate’ and & ‘must release’ voltages of Pickering relays at 25 degrees Centigrade are 75 percent and 10 percent of the nominal coil voltage, that is 3.75 volts and 0.5 volts for a 5 volt relay.
The copper coil wire has a positive temperature coeffi cient of approximately 0.4 percent per degree Centigrade. If the temperature increases by 50 degrees Centigrade, the voltage required to operate the relay will increase by around 20 percent.

The operate voltage is also effected by the extraneous magnetic fi elds from adjacent relays. Most Pickering relays feature an internal mu-metal magnetic screen to eliminate this problem.

Operate Times
The typical operate time of a dry reed relay is between 250 microseconds and 1 millisecond, depending on switch type. The Form A (energize to make) types in the small Single-in-Line relays are the fastest, typically 250 microseconds. The release time is typically one half of the operate time. For more specifi c information, please contact our technical department.

 

 

 

Downloads

Single in Line (SIL / SIP)Series 119 – High Voltage Micro SIL Reed Relays
Series 118 – High Coil Resistance 

Series 117 – SIL Reed Relays
Series 116 – SIL Reed Relays
Series 115 – SIL Reed Relays
Series 114 – High Power Dry Reed Relays
Series 113 – SIL Reed Relays
Series 112 – SIL Reed Relays
Series 111 – Pico SIL Reed Relays
Series 110 – V-SIL Reed Relays
Series 109 – Micro SIL Reed Relays
Series 108 – Micro SIL Reed Realys
Series 107 – Mini SIL Reed Relays
Series 106 – SIL Reed Relays
Series 105 – Mini SIL Reed Relays
Series 104 – High Voltage SIL Reed Relays
Series 103 – Low Capacitance SIL Reed Relays
Series 102 – Subminiature Coaxical RF Reed Relays
Series 101 – CMOS Drive SIL Reed Relays
Series 100 – Low Thermal EMF Reed Relays
Dual in Line (DIL / DIP)

Series 98 – CMOS drive DIL Reed Relays
Series 97 – Dual-in-Line Reed Relays

High Voltage

Series 104 – High Voltage SIL Reed Relays
Series 62 & 63 – High Voltage Dry Reed Relays
Series 60 & 65 – High Voltage Dry Reed Relays
Series 67 & 68 – High Voltage Dry Reed Relays
Surface Mount

Series 200 – Surface Mount Reed Relays
Older Style Relays

Series 80, 85, 88 & 89 – General Purpose Reed Relays
Series 86 & 87 – High Sensitivity Reed Relays

Specification

High Density and ATE Instrumentation

An internal mu-metal magnetic screen permits side-by-side packing without the risk of problems due to magnetic interaction between relays. All dry Form A types feature the very highest grade, sputtered ruthenium contacts making them ideal for low level or ‘cold’ switching.

SERIES 200 Board area = 0.16 x 0.7 inches (Dry 1 Form A)
Surface Mount relays in a wide range of configurations. One or two Form A dry, one Form A coaxial for up to 6GHz, one Form C dry or mercury wetted, one Form A mercury wetted.
SERIES 117 Board area = 0.15 x 0.27 inches (1 Form A)
One or two pole, Form A Single-in-Line relays with 3 Watts rating.
SERIES 115 Board area = 0.15 x 0.27 inches (1 Form A)
One or two pole, Form A Single-in-Line relays with up to 15 Watts rating.
SERIES 116 Board area = 0.15 x 0.27 inches (1 Form A)
Identical configuration to the Series 117 but with 10 Watts rating
SERIES 113 Board area = 0.15 x 0.5 inches
Single-in-Line relays. One or two pole Form A with 10 Watts contact rating or one pole Form C with 3 Watts rating.
SERIES 112 Board area = 0.15 x 0.4 inches
Single pole Form A Single-in-Line relays with 10 Watts contact rating.
SERIES 111 & 111P Board area = 0.15 x 0.4 inches
Single pole 3 Watts Single-in-Line relays. Mu-metal or plastic package. Co-axial version also available in Series 111.
SERIES 110 Board area = 0.15 x 0.4 inches
Single pole Single-in-Line relays with 10 Watts contact rating. Option of low level or more robust general purpose switches.
SERIES 109 & 109P Board area = 0.15 x 0.6 inches
One or two pole Single-in-Line relays with 10 Watts contact rating. Mu-metal or plastic package 50 or 75 ohms co-axial versions also available in the Series 109.
SERIES 108 Board area = 0.15 x 0.8 inches
Single-in-Line relays. One or two pole Form A with 10 Watts contact rating or one pole Form C with 3 Watts rating.
Portable Instrumentation
High coil resistance relays for applications where low power consumption is required.
SERIES 118 Board area = 0.2 x 0.33 inches
Single-in-Line relays with a 5 volt coil of up to 2200 ohms.
SERIES 100 Board area = 0.4 x 1.0 inches
Single-in-Line relays with a 5 volt coil of 3300 ohms.
SERIES 101 Board area = 0.3 x 0.8 inches
Single-in-Line relays with a 5 volt coil up to 3000 ohms
General Instrumentation
For applications where board area is not so critical. Relays feature the highest grade switches and have mu-metal magnetic screens.
SERIES 107 Board area = 0.2 x 0.8 inches
Single-in-Line relays in plated mu-metal package. Industry standard package dimension (0.2 inch wide). One or two pole Form A or one pole Form B with 10 Watts contact rating. One or two pole Form C with 3 Watts rating, the only two pole changeover SIL relay available. Mercury wetted switches also available.
SERIES 106 Board area = 0.2 x 0.8 inches
Single-in-Line relays in plastic package. Industry standard package dimension (0.2 inch wide). One pole Form A with 10 Watts contact rating or one pole Form C with 3 Watts rating.
SERIES 105 Board area = 0.27 x 0.8 inches
The original Pickering Single-in-Line relay. Plastic package with a wide range of configurations. One or two pole Form A or one pole. Form B with 10 Watts contact rating. One pole Form C with 3 Watts rating. Mercury wetted switches also available.
SERIES 114 Board area = 0.25 x 1.0 inches (1 Form A)
Single-in-Line relays in a plastic package. 40 watts switch rating. One or two Form A switches or one Form B switch. May be used to replace mercury relays in some applications. Unusually for high power relays, this range features sputtered ruthenium switches which makes them usable at low levels also. Most high power reed relays have electroplated tungsten or rhodium switches which have a poorer low level performance.
SERIES 119 - The smallest currently available. Board area = 0.15 x 0.6 inches
(1 Form A, 1kV and 2kV). 0.15 x 0.8 (1 Form A, 3kV and 2 Form A, 1kV)
Up to 3 Kilovolts. Sputtered ruthenium, vacuum switches in a Single-in-Line plastic package. Three voltage ratings.
1kV stand-off, 1kV volts switching at 10 Watts (1 or 2 Form A)
2kV stand-off, 1kV switching at 10 Watts (1 Form A)
3kV stand-off, 1kV switching at 10 Watts (1 Form A)
SERIES 104 Board area = 0.25 x 1.0 inches (1 Form A)
Up to 3 Kilovolts. Rhodium plated, vacuum switches in a Single-in-Line plastic package. Three voltage ratings are available.
1kV stand-off, 500 volts switching at 10 Watts (One or two Form A or one Form B).
1.5kV stand-off, 1kV switching at 10 Watts (One or two Form A or one Form B).
3kV stand-off, 1kV switching at up to 20 Watts (One Form A only).
SERIES 60 Board area = 0.65 x 2.3 inches
Up to 15 Kilovolts. Tungsten plated, vacuum switches in a chassis mounting package with solder tag connections . Three voltage ratings are available.
5kV stand-off, 3.5kV switching at 50 Watts (One Form A or one Form B).
10kV stand-off, 7.5kV switching at 50 Watts (One Form A or one Form B). 15kV stand-off, 12.5kV switching at up to 50 Watts (One Form A only).
SERIES 65 Board area = 0.65 x 2.3 inches
Up to 10 Kilovolts. Tungsten plated, vacuum switches in a PCB mounting package. Two voltage ratings are available.
5kV stand-off, 3.5kV switching at 50 Watts (One Form A or one Form B). 10kV stand-off, 7.5kV switching at 50 Watts (One Form A or one Form B).
SERIES 62 Board area = 0.8 x 2.55 inches
Up to 10 Kilovolts. Tungsten plated, vacuum switches in a chassis mounting package with push-on connections. Two voltage ratings are available.
5kV stand-off, 3.5kV switching at 50 Watts (One Form A or one Form B). 10kV stand-off, 7.5kV switching at 50 Watts (One Form A or one Form B).
SERIES 63 Board area = 0.8 x 2.55 inches
Up to 15 Kilovolts. Tungsten plated, vacuum switches. Coil connections are by PCB pins and the high voltage connections are by push-on terminals on the top face. Three voltage ratings are available.
5kV stand-off, 3.5kV switching at 50 Watts (One Form A or one Form B).
10kV stand-off, 7.5kV switching at 50 Watts (One Form A or one Form B). 15kV stand-off, 12.5kV switching at up to 50 Watts (One Form A only).
SERIES 67 Board Area = 0.5 x 2.3 inches
Form A relays, For up to 10 Kilovolts. Tungsten plated, vacuum switches in PCB mounting package. Two voltage ratings are available.
5kV stand-off, 3.5kV switching at 50 Watts and 10kV stand-off, 7.5kV switching at 50 Watts.
SERIES 68 Board area = 0.5 x 2.3 inches
Form A relays, For up to 10 Kilovolts.. Tungsten plated, vacuum switches. Coil connections are by PCB pins and the high voltage connections are by flying leads on the top face. Two voltage ratings are available.
5kV stand-off, 3.5kV switching at 50 Watts and 10kV stand-off, 7.5kV switching at 50 Watts.
SERIES 100 Board area = 0.4 x 1.0 inches
Thermal EMF of 1 microvolt or less. 3300 ohm, 5 volt coil may be driven directly from 4000B CMOS. Wide range including some mercury wetted types.
SERIES 101 Board area = 0.3 x 0.8 inches
Direct drive from 74HC or HCT CMOS. Standard 5 volt coil is 1600 ohms, special single pole type with 3000 ohms coil also available. Good compromise between size, sensitivity and thermal EMF.
SERIES 103 Board area = 0.2 x 0.8 inches
Inherently low levels of capacitance between the switch and coil of around 1pF.
SERIES 103G Board area = 0.2 x 0.8 inches
Effectively low levels of coupling capacitance between the switch and coil by virtue of the coaxial guard screen.
A mu-metal magnetic screen is optional on these relays, which then become 103M and 103GM.
SERIES 102M Board area = 0.2 x 0.8 inches
Single-in-Line coaxial relay with 50 ohms impedance. Useful to about 1.5GHz RF.
SERIES 102F Board area = 0.35 x 0.55 inches
Axial construction connects directly onto microstrip. Useful to around 3GHz RF.
SERIES 103G Board area = 0.2 x 0.8 inches
Same internal construction as 102M but in plastic package – similar performance.
SERIES 109RF Board area = 0.15 x 0.6 inches
Single-in-Line coaxial relay with 50 ohms impedance. Useful to about 1.5GHz RF. 75 ohms version also available.
SERIES 111RF Board area = 0.15 x 0.4 inches
Very small Single-in-Line coaxial relay. Useful to about 1.5GHz RF.
SERIES 200RF Board area = 0.16 x 0.7 inches
Surface mount coaxial relay useful to around 5GHz. 75 ohms version also available.
SERIES 99 Board area = 0.3 x 1.1 inches
Non coaxial relay for HF switching, featuring copper plated switches for low insertion loss. Very low levels of capacitance, suitable for filter switching in frequency agile transceivers.
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