112 PICKERING | Alldatasheet
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ISSUE 1.4 MAY 2024 (see last page) Single-in-Line SIL/SIP Reed Relays Series 112 pickeringrelay.com 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 Ideal for high density card based systems and automatic test equipment Plastic package with internal mu-metal magnetic screen They take up the minimum of board area, conserving board space Insulation resistance >1012 Ω 3, 5 or 12 V coils with or without internal diode Additional build options are available Many benefits compared to industry standard relays 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 1012 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%. Magnetic Interaction Unscreened 100 100HV 100HC 30% 10% 101 20% Pickering relays 106 107 0.40.30.20.1 Relay Package Width (Inches) 108 109 111 Percentage Interaction (Change in operate voltage) Other Unscreened relays 109P 110 111P 112 113 105 Internal mu-metal screen Complete mu-metal can Key: 104 114 144 117 115 116 119 40% 50% Other Manufacturers’ Unscreened relays Other Manufacturers’ Partially screened relays Partially screened Magnetic Interaction Package Width (Inches) For more information on magnetic interaction please visit: pickeringrelay.com/magnetic-interaction
1 Package Type
Single-in-Line SIL/SIP Reed Relays – Series 112 pickeringrelay.com Specification 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 Switch No Switch form Power rating Max. switch current Max. carry current Max. switching volts Life expectancy ops typical (see Note1) Operate time inc bounce (max) Release time Special
features
1 A 20 W (*15 W
for 3 V coils) 1 A 1 A 200 108 0.5 ms 0.2 ms General purpose 2 A 10 W 0.5 A 0.5 A 200 108 0.5 ms 0.2 ms Low level Note1: Life Expectancy The life of a reed relay depends upon the switch load and end of life criteria. For example, 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 109 ops. At the maximum load (resistive), typical life is 1 x 106 ops. In the event of abusive conditions, e.g. high currents due to capacitive inrushes, this figure reduces considerably. Pickering will be pleased to perform life testing with any particular load condition. 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 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. 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 cold switching techniques are often used. Where higher power levels are involved, switch no.1 is more suitable. 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.
Single-in-Line SIL/SIP Reed Relays – Series 112 pickeringrelay.com Specification Dry Relay: Series 112 Coil data and type numbers Device Type Type Number Coil (V) Coil resistance Max. contact resistance (initial) Insulation resistance (minimum at 25 °C) (see Note3) Capacitance (typical) (see Note2) Switch to coil Across switch Closed switch to coil Across open switch 1 Form A, Switch No. 1 Package Type 1 (* 15 W for 3 V coils) 112-1-A-3/1D * 3 250 Ω 0.12 Ω 1012 Ω 1012 Ω 1.5 pF 0.15 pF112-1-A-5/1D 5 500 Ω 112-1-A-12/1D 12 750 Ω
1 Form A,
Switch No. 2 Package Type 1 112-1-A-3/2D 3 250 Ω 0.12 Ω 1012 Ω 1012 Ω 1.5 pF 0.15 pF112-1-A-5/2D 5 500 Ω 112-1-A-12/2D 12 750 Ω 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 When an internal diode is required, the suffix D is added to the part number as shown in the table. Note2: Capacitance across open switch The capacitance across the open switch was measured with other connections guarded. Note3: 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.
1 Form A
0.145 (3.7) Pin 1 0.125 (3.2) 0.43 (11.0) 0.39 (10) 0.1 (2.54) Pin spacing 0.02 (0.5) 0.02 (0.5) 0.01 (0.25) 1 2 3 4 PICKERING ENGLAND1Package Type Weight: Typical 0.64 g Pin Configuration, Weights and Dimensional Data (dimensions in inches, millimeters in brackets) Important: Where the optional internal diode is fitted the correct coil polarity must be observed, as shown by the + symbol on the schematics. Package Type Weight: Typical 0.64 g
Single-in-Line SIL/SIP Reed Relays – Series 112 pickeringrelay.com Specification 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. Similar Relays Comparison Reed Relay Selection Tool Because Pickering offer the largest range of high-quality reed relays, sometimes it can be difficult to find the right reed relay you require. That is why we created the Reed Relay Selector, this tool will help you narrow down our offering to get you the correct reed relay for your application. To try the tool today go to: pickeringrelay.com/reed-relay-selector-tool Series Name 111P-1-A 112-1-A 116-1-A 116-2-A 110-1-A Physical Outline Depth mm (inches) Package Volume (mm3) 245 407 304 456 555 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 Carry Current Switch Power (W) 10 20 (15) 10 20 (15) 10 20 (15) 10 20 10
If you need any technical advice or other help, please do not hesitate to contact our Technical Sales Department. We will always be pleased to discuss Pickering relays with you. email: techsales@pickeringrelay.com Contact Us UK Headquarters - email: sales@pickeringrelay.com | Tel. +44 1255 428141 USA - email: ussales@pickeringrelay.com | Tel. +1 781 897 1710 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: chinasales@pickeringtest.com | Tel. +86 4008 799 765 For a full list of agents, distributors and representatives visit: pickeringrelay.com/agents 100% Tested Longevity Longevity Single-in-Line SIL/SIP Reed Relays – Series 112 pickeringrelay.com
Ordering Information
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. 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: 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: pickeringrelay.com/3d-models 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) 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
Single-in-Line SIL/SIP Reed Relays – Series 112 pickeringrelay.com
10 Key Benef its of Pickering Reed Relays
Key Benef it Pickering Reed Relays Typical Industry Reed Relays 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. Formerless Coil Construction Formerless coil construction increases the coil winding volume, maximizing magnetic efficiency, 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. Magnetic Screening Mu-metal magnetic screening (either external or internal), enables ultra-high PCB side-by-side packing densities with minimal magnetic interaction, saving significant 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% 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 significant stresses to the glass reed switch which can cause the switch blades to deflect or misalign leading to changes in the operating characteristics, contact resistance stability and operating lifetime. 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. 100% Inspection at Every Stage of Manufacturing Inspection at every stage of manufacturing maintaining high levels of quality. Often limited batch inspection. 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 field failures. 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. Custom Reed Relays Our reed relays can be customized easily, e.g. special pin configurations, enhanced specifications, non-standard coil or resistance figures, special life testing, low capacitance, and more. Limited ability to customize. 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. X-Ray of Pickering mu-metal magnetic screen X-Ray of typical industry magnetic screen Coil Voltage Contact Resistance Dynamic Contact Resistance Test Operate Release +85°C -20°C Longevity Longevity ProductProduct LongevityLongevity 25+Years25+Years For more information go to: pickeringrelay.com/10-key-benefits © Copyright (2024) Pickering Electronics. All Rights Reserved Pickering Electronics maintains a commitment to continuous product development, consequently we reserve the right to vary from the description given in this data sheet.