United Kingdom
Pickering Relay
United Kingdom

Micro-SIL Reed Relays

Pickering Series 109

109 Relay

UP TO 20W + RF MAGNETICALLY SCREENED REED RELAYS

Micro-SIL Reed Relays - Including coaxial types up to 2GHz. The relays stack on 0.15 x 0.6 inches pitch giving superb packing density.

  • SoftCenter™ construction
  • Highest quality instrumentation grade switches
  • Many benefits compared to industry standard relays. Learn more here >.
  • 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)
  • Insulation resistance greater than 10E12 Ohms (1TOhms)
  • 3, 5 and12 Volt coils are standard, with or without internal diode

Download Data Sheet PDF 

The mu-metal packaged Series 109 and 109RF, and the plastic packaged Series 109P, 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 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.

Download Data Sheet PDF 

Download the Series 109 Datasheet

All our data sheets have been recently updated to include additional environmental specifications, mechanical characteristics and relay weights, RF plots for coaxial relays (showing VSWR, isolation and insertion loss), interactive links to further useful information, comparison tables to similar relay ranges and much more.

Download the Series 109 3D Models

The download is a zip file containing 3D models in STEP, IGS and SLDPRT formats (free viewers are available for these formats).

  • Free Sample Service - determining which components to design in can be challenging. Fortunately, here at Pickering Electronics, we provide free working samples to help you evaluate our high-quality Reed Relays.
  • Reed Relay Selector Tool - this tool will help you narrow down our large offering to get you the correct reed relay for your application. Once you narrow your selections down you can download a relay datasheet for more information, purchase in stock items or request a quote to find out lead times of made to order (MTO) relays.
  • Concise Tech Guide - this guide will help you to maximise the reliability of your design.
  • Quality Assurance - learn more about the various accreditations and certifications that Pickering holds.
  • Custom Designed Reed Relays - With over a thousand catalog parts there is plenty of choice when choosing the right Reed Relay for your product, but if you cannot find one suitable for your needs Pickering can customize our standard reed relay parts to suit your specific requirements and applications.

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.

The below table will help you narrow down our offering to get you the correct reed relay for your application.

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(Amps)
Switching Power
(Watts)
PEL Diode
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to GO
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(DC/AC peak)
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Part Number
Contact Configuration
Switching Current (Amps)
Switching Power (Watts)
Switching Voltage (DC or AC peak)
Stand-off Voltage (DC or AC peak)
Coil Voltage
Coil Resistance (Ω)
Switch Type
Diode
Depth (mm)
Width (mm)
Height (mm)
View Datasheet
Stock
Price
Add to Bag
1 Form A - SPST N.O.
0.5
Amps
10
200
240
5V
500 Ω
Low Level Dry Reed
No
3.7
15.1
6.6
5
$8.15
Max: 5
Min: 1
Step: 1
Add
1 Form A - SPST N.O.
0.5
Amps
10
200
240
5V
375 Ω
Low Level Dry Reed
No
3.7
15.1
6.6
0 - MTO
$11.61
2 Form A - DPST N.O.
0.5
Amps
10
200
240
3V
200 Ω
Low Level Dry Reed
Yes
3.7
15.1
8.9
25
$11.55
Max: 25
Min: 1
Step: 1
Add
1 Form A - SPST N.O.
0.5
Amps
10
200
240
5V
500 Ω
Low Level Dry Reed
Yes
3.7
15.1
6.6
0 - MTO
$8.37
1 Form A - SPST N.O.
0.5
Amps
10
200
240
3V
200 Ω
Low Level Dry Reed
No
3.7
15.1
6.6
0 - MTO
$11.18
1 Form A - SPST N.O.
0.5
Amps
10
200
240
5V
1000 Ω
Low Level Dry Reed
Yes
3.7
15.1
6.6
0 - MTO
$8.74
1 Form A - SPST N.O.
0.5
Amps
10
200
240
12V
600 Ω
Low Level Dry Reed
Yes
3.7
15.1
6.6
0 - MTO
$11.72
2 Form A - DPST N.O.
0.5
Amps
10
200
240
3V
200 Ω
Low Level Dry Reed
No
3.7
15.1
8.9
0 - MTO
$11.14
1 Form A - SPST N.O.
0.5
Amps
10
200
240
5V
500 Ω
Low Level Dry Reed
No
3.7
15.1
6.6
0 - MTO
$7.95
1 Form A - SPST N.O.
0.5
Amps
20
200
240
5V
500 Ω
General Dry Reed
Yes
3.7
15.1
6.6
1487
$8.68
Max: 1487
Min: 1
Step: 1
Add
126
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