# Reed Relay, 112 Series ![Product image](https://novapart.co/image/farnell:4527711/) **URL**: https://novapart.co/products/112-1-A-12/1D/reed-relay-112-series **SKU**: 112-1-A-12/1D **Manufacturer**: PICKERING **Category**: Switches & Relays || Relays || Reed Relays **Price**: €15.3100 **Stock**: 10+ **Lead Time**: 106 days (indicative) ## Specifications | Parameter | Value | |---|---| | Svhc | No SVHC (21-Jan-2025) | | Product Range | 112 Series | ## Datasheet 📄 [Download PDF](https://novapart.co/datasheet/farnell:4527711/) Single-in-Line SIL/SIP Reed Relays Series **112** ## Switching up to **20 W, 1 A** ## **1 Form A** stacks on **0.15 x 0.40 inches** pitch Highest quality, sputtered ruthenium instrumentation grade reed switches **==> picture [82 x 13] intentionally omitted <==** **----- Start of picture text -----**
@ 1 Package Type
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Ideal for high density card based systems and automatic test equipment Plastic package with internal mu-metal magnetic screen e They take up the minimum of board area, conserving board space e Insulation resistance **>10[12 ] Ω** e **3** , **5** or **12 V** coils with or without internal diode ## A Additional build options are available ° Many benefits compared to industry standard relays [Ld (see last page) Suitable for high density card based systems such as VME, VXI, Compact PCI, and PXI. The high quality, sputtered ruthenium switch contacts also makes them ideal for Automatic Test Equipment. The 5 V coil version has a resistance of 500 Ω and may be driven directly from TTL logic. The Series 112 is encapsulated in a plastic package using a very high resistivity resin to achieve an insulation resistance greater than 10[12] Ω. 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%. Relays of this size without magnetic screening would therefore be totally unsuitable for applications where dense packing is required. Pickering Series 112 have a typical interaction figure of 5%. **==> picture [341 x 215] intentionally omitted <==** **----- Start of picture text -----**
Magnetic Interaction
50% Other Manufacturers’ Key:
Unscreened relays
oO Unscreened
40% Other Manufacturers’ Partially screened relays im Partiallyscreened
Internal
30% Pickering WA - Other Unscreened i mu-metal
relays relays screen
Percentage
Interaction Complete
109P
20% 110 a mu-metal
(Change in 111P 116 can
operate voltage) 112 117 115 104
10% 108 113 114 100
109111 119 \ 106 144 105 101 100HV
\ 107 100HC
0.145” 0.19” 0.245” 0.26” 0.29” 0.40”
Po IEE Ed
Relay Package Width (Inches)
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> For more information on magnetic interaction please visit: i pickeringrelay.com/magnetic-interaction Issue 1.5 May 2025 pickeringrelay.com Specification Series **112** ## **Switch Ratings - Dry Switches** 1 Form A (energize to make) 20 W at 200 V 15 W at 200 V 10 W at 200 V ## **Series 112 switch ratings - contact ratings for each switch type** **==> picture [512 x 91] intentionally omitted <==** **----- Start of picture text -----**
Life Operate
Max. Max. Max.
Switch Switch expectancy time inc Release Special
Power rating switch carry switching
No form ops typical bounce time features
current current volts
(see Note [1] ) (max)
20 W (*15 W
1 A 1 A 1 A 200 10 [8] 0.5 ms 0.2 ms General purpose
for 3 V coils)
2 A 10 W 0.5 A 0.5 A 200 10 [8] 0.5 ms 0.2 ms Low level
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Switch no.2 is particularly good for switching low currents and/or voltages. It is the ideal switch for A.T.E. systems where cold switching techniques are often used. Where higher power levels are involved, switch no.1 is more suitable. ## Note[1] : Life Expectancy Relay life depends upon switch load and end of life criteria. For an end of life contact resistance specification of 1 Ω, switching low loads (10 V at 10 mA resistive) or when ‘cold’ switching, typical life is approx 1 x 10[9] ops. At the maximum load (resistive), typical life is 1 x 10[6] ops. IIn abusive conditions (e.g. high capacitive inrush current) this figure reduces considerably. Pickering can perform life testing with any load conditions. ## **Operating Voltages** |Coil voltage - nominal|Must operate voltage - maximum at 25 °C|Must release voltage - minimum at 25 °C| |---|---|---| |3 V|2.25 V|0.3 V| |5 V|3.75 V|0.5 V| |12 V|9 V|1.2 V| ## **Environmental Specification/Mechanical Characteristics** In the table below, the upper temperature limit can be extended to +125 °C if the coil drive voltage is increased to accommodate the resistance/temperature coefficient of the copper coil winding. This is approximately 0.4% per °C. This means that at 125 °C the coil drive voltage will need to be increased by approximately 40 x 0.4 =16% to maintain the required magnetic drive level. Please contact sales@pickeringrelay.com for assistance. **==> picture [366 x 97] intentionally omitted <==** **----- Start of picture text -----**
Operating Temperature Range -20 ºC to +85 ºC
Storage Temperature Range -35 ºC to +100 ºC
Shock Resistance 50 g
Vibration Resistance (10 - 2000 Hz) 20 g
Soldering Temperature (max) (10 s max) 270 ºC
Washability (Proper drying process is recommended) Fully Sealed
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## **Washing Guidelines** Pickering do not make any specific recommendations on washing reed relays, due to the large number of factors in cleaning processes, however we do have suggestions on best practices. Click here for more information. pickeringrelay.com Page 2 Specification Series **112** ## **Dry Relay: Series 112 Coil data and type numbers** **==> picture [512 x 150] intentionally omitted <==** **----- Start of picture text -----**
Insulation resistance Capacitance
Max. (minimum at 25 °C) (typical)
Coil Coil contact (see Note [3] ) (see Note [2] )
Device Type Type Number
(V) resistance resistance Closed Across
(initial) Switch Across switch open
to coil switch
to coil switch
1 Form A, Switch No. 1 112-1-A-3/1D * 3 250 Ω
Package Type 1 112-1-A-5/1D 5 500 Ω 0.12 Ω 10 [12] Ω 10 [12] Ω 1.5 pF 0.15 pF
(* 15 W for 3 V coils) 112-1-A-12/1D 12 750 Ω
1 Form A, 112-1-A-3/2D 3 250 Ω
Switch No. 2 112-1-A-5/2D 5 500 Ω 0.12 Ω 10 [12] Ω 10 [12] Ω 1.5 pF 0.15 pF
Package Type 1 112-1-A-12/2D 12 750 Ω
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When an internal diode is required, the suffix D is added to the part number as shown in the table. ## Note[2] : Capacitance across open switch The capacitance across the open switch was measured with other connections guarded. ## Note[3] : Insulation resistance Insulation resistance will reduce at higher temperatures. For more information on temperature effects click here, or contact Pickering for more in depth guidance. ## **Pin Configuration, Weights and Dimensional Data** (dimensions in inches, millimeters in brackets) **==> picture [486 x 222] intentionally omitted <==** **----- Start of picture text -----**
0.39 (10)
Package Type 1 PICKERING
Package Type 1 ENGLAND
Weight: Typical 0.64 g 0.145 (3.7)
Weight: Typical 0.64 g
0.43
(11.0) 0.02 1 Form A
(0.5) +
0.125
1 2 3 4
(3.2)
0.02 0.01
Pin 1
(0.5) (0.25)
0.1 (2.54)
Pin spacing
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**Important:** Where the optional internal diode is fitted the correct coil polarity must be observed, as shown by the + symbol on the schematics. The technical information shown in this data sheet could contain inaccuracies or typographical errors. This information may be periodically changed or updated and these changes will be included in future versions of this data sheet. For different values, latest specifications and product details, please contact your local Pickering sales office. **For FREE evaluation samples go to: pickeringrelay.com/samples** pickeringrelay.com Page 3 Specification Series **112** ## **Similar Relays Comparison** If the Series 112 is unsuitable for your application, Pickering also manufactures three other series of reed relays with similar characteristics, but in different package sizes. |Series Name|Series Name|111P-1-A|112-1-A|112-1-A|116-1-A|116-1-A|116-2-A|116-2-A|110-1-A|110-1-A| |---|---|---|---|---|---|---|---|---|---|---| |Physical Outline|||ie _||il||||ae ad
eo
eee|| |Depth|mm
(inches)|3.7 (0.145)|3.7 (0.145)||3.7 (0.145)||3.7 (0.145)||3.7 (0.145)|| |Width||10.0 (0.39)|10.0 (0.39)||6.60 (0.26)||9.90 (0.39)||10.0 (0.39)|| |Height||6.6 (0.26)|11.0 (0.43)||12.45 (0.49)||12.45 (0.49)||15.0 (0.60)|| |Package Volume
(mm3)||245|407
**1**||304||456||555|| |Typical Weights (g)||0.44|0.64||0.53||0.76||1.08|| |Contact
Configuration||1-A
(SPST)|1-A
(SPST)||1-A
(SPST)||2-A
(DPST)||1-A
(SPST)|| |Reed Switch Type||Dry|Dry||Dry||Dry||Dry|Dry| |Switching Voltage
(V)||170|200|200|200|200|200|200|200|200| |Switching Current
(A)||0.5|1.0|0.5|1.0|0.5|1.0|0.5|1.0|0.5| |Carry Current
(A)||0.5|1.0|0.5|1.0|0.5|1.0|0.5|1.2|1.2| |Switch Power
(W)||10|20 (15)|10|20 (15)|10|20 (15)|10|20|10| ## **Reed Relay Selection Tool** Pickering has created the Reed Relay Selector to assist you in selecting the correct high quality reed relay for your application from our extensive range. To try the tool today go to: pickeringrelay.com/reed-relay-selector-tool pickeringrelay.com Page 4 Ordering Information Series **112** ## **Standard Build Options** The Series 112 Reed Relays are available with a number of standard build options to tailor them to your specific application. These options are detailed in the table below. If you decide to go ahead and specify one, or more, of these options you will be allocated a unique part number suffix. |Mechanical Build Options|Electrical Build Options| |---|---| |Special pin configurations or pin lengths|Different coil resistance| |Special print with customer’s own part number or logo|Operate or de-operate time| |Custom packaging possibility|Pulse capability| |Equivalents to competitors discontinued parts|Enhanced specifications| ||Equivalents to competitors discontinued parts| ||Non-standard coil voltages and resistance figures| ||Special Life testing under customer’s specific load
conditions| ||Specific environmental requirements| ||Controlled thermal EMF possibility| ## **Customization** If your specific requirements are not met by standard relay, or any of the standard build options, please speak to us to discuss producing a customized reed relay to service your specific application: Po pickeringrelay.com/contact ## **3D Models** Interactive 3D models of the complete range of Pickering relay products in STEP, IGS and SLDPRT formats can be downloaded from the website: PO] pickeringrelay.com/3d-models **==> picture [496 x 155] intentionally omitted <==** **----- Start of picture text -----**
Part Number Description: 112 - 1 - A - 5 / 2 D - xxx
Series
Number of reeds
Switch form
Coil voltage
Switch number (see table on page 2 )
Diode if fitted (omit if not required)
==)
Unique suffix (if standard build option selected)
Help
If you need any technical advice or other help, please do not hesitate to contact our Technical Sales Department. We are
happy to discuss any enquires with you. email: Pp techsales@pickeringrelay.com
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## **Contact Us** UK Headquarters - email: sales@pickeringrelay.com | Tel. +44 1255 428141 USA - email: ussales@pickeringrelay.com | Tel. +1 781 897 1710 Fc Lorl Germany - email: desales@pickeringtest.com | Tel. +49 89 125 953 160 France - email: frsales@pickeringtest.com | Tel. +33 9 72 58 77 00 Nordic - email: +} ndsales@pickeringtest.com | Tel. +46 340 69 06 69 Czech Republic: czsales@pickeringtest.com | Tel. +420 558-987-613 China - email: _——t chinasales@pickeringtest.com | Tel. +86 4008 799 765 Malaysia - email: aseansales@pickeringrelay.com | Tel.+60 12 833 7980 For a full list of agents, distributors and representatives visit: Pe —— pickeringrelay.com/agents pickeringrelay.com Page 5 **10 Key Benef its** of Pickering Reed Relays Series **112** |**Key Benef it**|**Pickering Reed Relays**|**Typical Industry Reed Relays**|| |---|---|---|---| |1
Instrumentation Grade
Reed Switches|Instrumentation Grade Reed Switches
with vacuum sputtered Ruthenium plating
to ensure stable, long life up to 5x10E9
operations.|Often low grade Reed Switches with
electroplated Rhodium plating resulting in
higher, less stable contact resistance.|| |2
Formerless Coil
Construction|Formerless coil construction increases the
coil winding volume, maximizing magnetic
effi ciency, allowing the use of less sensitive
reed switches resulting in optimal switching
action and extended lifetime at operational
extremes.|Use of bobbins decreases the coil winding
volume, resulting in having less magnetic
drive and a need to use more sensitive reed
switches which are inherently less stable
with greatly reduced restoring forces.|Pickeringformer-less coil
Typical industrycoil
wound on bobbin:| |3
Magnetic
Screening|Mu-metal magnetic screening (either external
or internal), enables ultra-high PCB side-by-
side packing densities with minimal magnetic
interaction, saving signifi cant cost and space.
Pickering Mu-Metal magnetic screen -
interaction approx. 5%|Lower cost reed relays have minimal or no
magnetic screening, resulting in magnetic
interaction issues causing changes in
operating and release voltages, timing and
contact resistance, causing switches to not
operate at their nominal voltages.Typical
industry screen - interaction approx. 30%|X-Ray of Pickering
mu-metal
magnetic screen
X-Ray of typical
industry
magnetic screen| |4
**SoftCenter**™
Technology|**SoftCenter**™technology, provides maximum
cushioned protection of the reed switch,
minimising internal lifetime stresses and
extending the working life and contact
stability.|Transfer moulded reed relays (produced
using high temperature/pressure), result
in signifi cant stresses to the glass reed
switch which can cause the switch blades to
defl ect or misalign leading to changes in the
operating characteristics, contact resistance
stability and operating lifetime.|Pickering
Typical industry
soft center
thermo-setting
protectionof = hard mouldedprotection
the reed switch
of thereed switch| |5
100% Dynamic
Testing|100% testing for all operating parameters
including dynamic contact wave-shape
analysis with full data scrutiny to maintain
consistency.|Simple DC testing or just batch testing which
may result in non-operational devices being
supplied.|Coil Voltage
Contact Resistance
Dynamic Contact Resistance Test
Operate
Release| |6
100% Inspection
at Every Stage of
Manufacturing|Inspection at every stage of manufacturing
maintaining high levels of quality.|Often limited batch inspection.|| |7
100% Thermal
Cycling|Stress testing of the manufacturing processes,
from -20 °C to +85 °C to -20 °C, repeated 3
times.|Rarely included resulting in fi eld failures.|+85°C
-20°C| |8
Flexible Manufacturing
Process|Flexible manufacturing processes allow quick-
turn manufacturing of small batches.|Mass production: Usually large batch sizes
and with no quick-turn manufacturing.|Ga)
ination
3| |9
Custom Reed Relays|Our reed relays can be customized easily,
e.g. special pin confi gurations, enhanced
specifi cations, non-standard coil or resistance
fi gures, special life testing, low capacitance,
and more.|Limited ability to customize.|| |10
Product Longevity|Pickering are committed to product longevity;
our reed relays are manufactured and
supported for more than 25 years from
introduction, typically much longer.|Most other manufacturers discontinue parts
when they reach a low sales threshold;
costing purchasing and R&D a great deal of
unnecessary time and money to redesign
and maintain supply.|900
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