SM-1322 Sub Miniature Reed Switch
This Form A type SM-1322 Sub Miniature Reed Switch is built with a 2.25 mm diameter glass with a higher wall thickness for better glass to metal seals, and is a good solution for general purpose, high volume applications with a little shock and vibration, such as toys. The center contact also makes it suitable for coil applications. The three Release AT ranges available cover a wide range of Release AT specific applications. A specially Sputtered contact for 230 VAC line voltage switching is also available. The cropped version of the SM-1322 Sub Miniature Reed Switch is suitable for smaller plastic housings and can be soldered to cables, the SMD version is suitable for re-flow on PCB, and the vertical and horizontal mount versions are suitable for mounting on through hole PCB.
Features
Release AT Configurable. Ruthenium contact. 14.0 mm Glass length. Normally Open. Inert gas filled. 4 types of Lead Formations.
Benefits
Omni-polar. Does not require power for operation. Sputtered Contact. RoHS Compliant. Not ESD Sensitive.
Cylindrical and Rectangular Magnets
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Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized
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Nov 18, 2020 |
Actuation Distances for SM-1322 Reed Switches
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For easy selection of AT band and Magnet for an application, we offer Actuation distances for the SM-1322 Sub Miniature Reed Switch in
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Nov 25, 2020 |
Electrical
| Contact Form | A | |
| Contact Rating (max) | W/VA | 10.0 |
| Switching Current (max) | A | 0.5 |
| Carry Current (max) | A | 1.50 |
| DC Switching Voltage (max) | VDC | 180 |
| AC Switching Voltage (max) | VAC | 130 |
| Breakdown Voltage (min) | VDC | 200 |
| Contact Resistance (max) | mΩ | 150 |
| Insulation Resistance (min) | Ω | 1011 |
| Capacitance (typ) | pF | 0.2 |
Miscellaneous
| Operate Time (max) | ms | 0.50 |
| Bounce Time (max) | ms | 0.15 |
| Release Time (max) | ms | 0.15 |
| Resonance Frequency (typ) | Hz | >2000 |
| Operating Frequency (max) | Hz | 500 |
| Operating Temperature | °C | -40 to +200 |
| Shock Resistance (½Sin wave for 11ms) | G | 50 |
| Vibration Resistance (10-2000Hz) | G | 20 |
| Test Coil Number | 717 102 002 |
Ordering Code
SM-1322-(Release AT Code)-(Operate Band)-(Formation Code)
| Release AT Code | L | M | H | |
| Operate Band | AT | 10-40 | 10-40 | 10-40 |
| Corresponding Release Band | AT | 4-20 | 6-25 | 7.5-30 |
| Formation Code | Lead Type |
| Full Length Leads | |
| C | Cropped |
| S | SMD |
| H | Horizontal Mount |
| V | Vertical Mount |
Examples: SM-1322-L-15-19 denotes Low Release in 15-19 Operate Band (AT) with Full Length leads. SM-1322-H-10-15-S denotes High Release AT in 10-15 Operate band (AT) with SMD Formed leads.
Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Higher Insulation Resistance, Special Release Limits, Gold plated leads.
Usage Notes
Here are some of the recommended usage notes to ensure maximum durability of this Sub Miniature Reed Switch. The complete usage notes are available here.
Ampere Turn Selection
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For any application, it is important to select the correct Ampere Turn (AT) or magnetic sensitivity of a Reed Switch, Reed Sensor or
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Aug 27, 2020 |
Product Handling
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Reed Switch Handling Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro cracks in the glass
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Aug 31, 2020 |
Manual Soldering
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Soldering of Reed Switches and Reed Sensors requires some care to ensure that these delicate devices are not inadvertently damaged. Damage
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Nov 10, 2020 |
Ferro-magnetic parts
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Reed Switches use an alloy of Nickel and Iron with a few other elements that make the alloy Ferro-magnetic and having a low Remanence.
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Sep 4, 2019 |
Potting and Encapsulation
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Epoxy dispensing Nozzle When potting or encapsulating reed switch assemblies in custom housings, selection of materials are important.
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Sep 4, 2019 |
Reed Contact Protection Circuits
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It is assumed that the ideal reed switch load is a Resistive Load, but it is almost impossible to reduce any load to purely resistive.
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Aug 31, 2020 |
Applications
Although we can never restrict the use of a reed switch to a particular field, the following is a list of some of the applications that the SM-1322 Sub Miniature Reed Switch is known to perform well.
Magnet Sensors for Two Wheeler and E-Bike Side Stand Sensing
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Side stand Motorcycles, Scooters and other motorized E-bikes have a side stand and a main stand under the chassis. A quick and easy
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Feb 17, 2022 |
Reed switches and Reed Sensors in Barcode Scanners
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Barcode scanners in supermarkets can be clicked on to a docking system that is integrated with the check-out conveyor belt. This helps
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Nov 6, 2020 |
Reed Sensors for Early Brake Sensing
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Automobile Brake Pedal The Brake pedal of an automobile is a very important aspect of the vehicle which is used to give an indication
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Nov 7, 2020 |
Reed Sensors in Automobile Power windows
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Automobile Power Window These days, most automobile windows can be raised or lowered using buttons near the seats or on the inside of
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Nov 7, 2020 |
Reed switches in Petrol and Diesel Pumps
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Fuel Nozzle Petrol and diesel pumping stations are explosive environments where a minor mistake could cause a great big fire. Reed
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Nov 7, 2020 |
Reed switches in Gear speed and direction sensing
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Gears Mechanical machinery always have a set of manual controls that not only direct the machinery between a forward and reverse
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Nov 7, 2020 |
Reed switches in Ferrous part detection
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Pick and Place Robot For a cost effective solution to be used in heave machine automation where magnets cannot be used due to the sheer
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Nov 7, 2020 |
Reed switches in Electronics and Science Kits
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Science Kit Reed Switches are used in many electronics and science kits for experimenting on various circuits and scientific phenomena.
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Nov 7, 2020 |
Reed switches and Float switches in Water tank control
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Water tank control Water is a scarcity in most of the major cities of the world, and in residences and apartments where an overhead
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Nov 6, 2020 |
Reed switches in Blowers
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Blower Blowers or centrifugal fans are used in various fields to move air or other gases from one area to another, either to vacuum or
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Nov 7, 2020 |
Reed sensors in Power switches for explosive areas
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Explosive Areas Explosion proof enclosures come in different grades and house components like switches, plug, controls, knobs, and
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Nov 7, 2020 |
Magnet Sensors for Door and window Security
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Door/Window Security Home and Workspace security is paramount and most newly constructed spaces integrate security products during
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Nov 6, 2020 |
Reed sensors in Wind Vanes
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Wind Vane A weather vane is an instrument used to show the direction of the wind. A regular weather vane usually consists of a pointer
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Nov 7, 2020 |
Reed switches and Reed sensors in Pressure Gauges
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Pressure Gauge A pressure gauge is an instrument used to display the pressure of a fluid. The most widely used type of pressure gauge
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Nov 7, 2020 |
Magnet Sensors in Anemometers
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Anemometer An Anemometer is an instrument used to measure wind speed. Spinning cup anemometers are measure wind speeds and are part of
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Nov 6, 2020 |
Flow Meters for checking Lake currents
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Lake Current Meter Underwater currents in lakes and other water bodies are caused by various factors such as pressure gradients due to
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Nov 7, 2020 |
Magnet sensors in Anti-lock braking system (ABS)
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Anti-lock Braking Anti-lock braking system or ABS for short, is a safety system used on aircraft and on vehicles, such as cars,
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Nov 7, 2020 |
Reed switches in Coolant flow sensing
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Radiator Coolant A coolant is a fluid, that is used to reduce or regulate the temperature of a system, like an engine through a
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Nov 7, 2020 |
Magnet sensors in Low fluid level monitoring
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Fluid Low Level Automobiles these days need to provide a wide range of information on the various liquid levels ranging from wind
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Nov 7, 2020 |
Magnet sensors for Dish Washer spray arm jam detection
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Dishwasher Dish Washers are appliances used to automatically wash dishes and cutlery, by spraying high pressure hot water and
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Nov 6, 2020 |
Level Sensing in Washing Machines and Dish Washers
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Washing Machine Water Level Washing machines and Dish Washers have smaller reservoirs to hold various fluids that help the user in
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Nov 6, 2020 |
Reed sensors in Telephone Handsets
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Telephone Handset Even though the telephone was ubiquitous in the 80s and 90s even every home or office, it has been replaced with
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Nov 20, 2020 |
Magnet sensors for Tension Monitoring in Coil Winders
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Coil Winder Coil Winders help wind bobbins with Copper wire and these bobbins are used in various applications such as in reed relay
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Nov 6, 2020 |
Reed switches in Reed Relays for Fax Machines
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Fax Machine A Facsimile Machine or Fax Machine enables the transmission of documents over telephone lines. Although these machines
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Nov 6, 2020 |
Magnet Sensors in Fluid Metering
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Fluid Meter In most large cities, utility companies or closed communities run piped Water and Liquefied Petroleum Gas, LPG, to all
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Nov 7, 2020 |