A reed switch is an electromagnetic switch used to control the flow of electricity in a circuit. Coto has also introduced their new redrock tmr sensors. The simplest magneticfield sensor is a reed switch. In general, applications switching above 250 volts require a reed switch with an internal vacuum or pressurized gas. Sensor, reed switch, direct mount, grommet connection, for cq2ncq2mxncq8 online from elcodis, view and download da93 pdf datasheet. This would mean that various processes such as hand cropping of leads, soldering or welding, encapsulation in custom housings may required. As the magnet is brought into the proximity of the reed sensor switch. Later, reed switch improvements were made in parallel with the development of the telecommunications technology.
Pdf 45anniversary city recognition mayoral recognition. Due to resonant frequency a reed switch may not operate properly if vibration is applied in excess of 2khz even minute acceleration. A dry reed switch is an assembly containing ferromagnetic contact blades, hermetically sealed in a glass envelope and operated by an externallygenerated magnetic field, e. Magnetic reed switches magnetic field ns magnet magnetic field n or smagnet when electrical wires are laid parallel to the switch, a minimum distance of 50 mm must be maintained. Note 4 the auto switches can operate at 12 vdc, but consider the internal voltage drop of the auto switch described in reed auto switch precautions on page 1205. The sensor is a doubleended type and may be actuated with an electromagnet, a permanent magnet or a combination of both. As reed switches are delicate devices, it is recommended to. Oki, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors. Reduces procurement and storing complexity qgenerally ready for shipping ex works in 24 hours held in stock in service centres worldwide more than 2200 product.
Theres a pipe through which liquid flows 1 with a paddle wheel mounted inside it 2. Oki reed switch,alldatasheet, datasheet, datasheet search site for electronic components and. Auto switch reed switch type series da90da93da96 their compatibility for the specific pneumatic system must be based on 2da90vda93vda96v basic safety principles according to en iso 849 3. Load, load circuit parameters and magnetic field are determined by the user. The load should be within the maximum published values. Magnetically operated reed switch, 5240 vdcvac, for use with 2 to 6 inch bores. Therefore, it is recommended not to use the reed switch which has been given such a shock. The reeds are switched on or off by magnetic field of permanent magnet or magnet coil.
Ord324 datasheet pdf 14 page oki electronic componets. It is capable of switching 200vdc at 20w with close differential cd characteristics. Miniature reed switch ord324 for automotive, general purpose, and industrial applications. Function style electrical entry auto switch model no. It consists of a sealed glass envelope where there are two ferrous elastic reeds and is filled with inert gas called rhodium. Ord211 datasheet, ord211 datasheets, ord211 pdf, ord211 circuit. Reed switch ord2 super ultraminiature j2r00123822 general description the ord2 is a small singlecontact reed switch designed for general control of lowlevel loads less than 24 v. Color of housings shall be offwhite, grey or mahogany brown. Coto technology is the leading manufacturer of small signal switching products including. These switches when fitted to the outside of a magnetic cylinder allow position sensing of the piston. Maximum switching voltage is less than the breakdown voltage. In the very frequent occurring arrangement of units next to one another, it must be made certain that sufficient distance is maintained. Showing 1 to 53 of 53 entries datasheet pdf or zip.
Standard packaging for uncut reed switches is a box containing 500 pieces. Auto switch internal circuit dz73 dz80 auto switch specifications weight dimensions grommet dz76 auto switch model 0. Reed relays dil packaged he700 he700 miniature dual inline reed relay description the he700 is a miniature reed relay in a dil package with a choice of normally open, normally open high voltage, normally closed or changeover contacts capable of switching up to 300vdc at 10w. The contacts are sealed within the glass tube with inert gas to maintain contact reliability. Normally open or closed contacts change states when a magnetic field is applied. The sensors act as nonlatching electrical switches. The contact contains a hermetically sealed magnetic reed switch. The reed shall be potted in the contact housing with a polyurethane based compound. We do recommend that you download individual pdfs from the product pages instead of these.
Reed switch ord211 ord211 general purpose ultraminiature lowlevel load 24 v max. Then, as it spins around and presents its opposite pole 5, the. Contact your local coto technology representative with your special packaging needs. Kofu reed switch ord2211 datasheet kofu reed switch ord2210v datasheet kofu reed switch ord2210 datasheet kofu reed switch ord324 datasheet kofu. The mlsm4 reed switch is a miniature, surface mounting, normally open switch with a 15. The reed contacts are sealed within the glass tube within inert gas to maintain contact reliability. In the very frequent occurring arrangement of units next to one another, it must be made certain that sufficient. Meder reed switch,alldatasheet, datasheet, datasheet search site for electronic components.
It has insulation resistance of 109 ohms minimum, and contact resistance less than 100 milliohms. Reed switch and reed sensor activation although a reed switch can be activated by placing it inside an electrical coil, many reed switches and reed sensors are used for proximity sensing and are activated by a magnet. Reed switch, ord324 datasheet, ord324 circuit, ord324 data sheet. As the liquid flows, the paddle spins and makes a magnet rotate 3. Do not service machineryequipment or attempt to remove the intended use of the auto switch is to detect a position of a magnet. Product catalogs for historical reasons, we also list the older versions of our reed switch, reed sensor, proximity sensor, reed switch and sensor applications, and help and theory catalogs. They are made from two or more ferrous reeds encased within a small glass tubelike envelope, which become magnetised and move together or separate when a magnetic field is moved towards the switch. The contact layer and the blade characteristics are determined by the manufacturer. The crocus magnetic switch is a suitable replacement for the reed switch in many applications. Reed switch companys core specialty is providing standard reed switch and reed switch actuator products, as well as developing new product lines, as technology evolved.
The crocus magnetic switch offers the same electrical functionality as the reed switch with additional advantages. Structure of reed switch reed switch is contact switch comprised of a pair of feni alloy reeds encased in glass tube with inactive gas. Contact and magnet housing shall snaplock into a 34 or 1 dia. Coto classic ct10 series molded reed switch 1 description the ct10 is an overmolded dry reed switch. Reed switch direct mounting style dz73dz76dz80 24 v or lessac dc 100 v ac 48 v dc dc contact protection box cdp11 cdp12 contact protection box cdp11 cdp12 reverse current prevention diode most sensitive position most sensitive position for details about certified products. To minimize contact arcing, it is imperative to select a reed switch with the appropriate features including vacuum, inert gas or pressurized inert gas. Da73 da72 da73 da80 reed switch rail mounting components datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic, semiconductors and other electronic components such as resistors, capacitors, transistors and diodes. Ord2211 datasheet, ord2211 datasheets, ord2211 pdf, ord2211 circuit. A typical reed switch flow meter works something like this.
How reed switches work magnetically operated switches. The ampere turn value at which normallyopen contacts close. Sensor, reed switch, direct mount, grommet connection, for cq2ncq2mxncq8 online from elcodis, view and download da93 pdf datasheet, miscellaneous specifications. Reed switch standard normally open contacts product data sheet specification contact form a normally open contact material rhodium switching capacity max. Page mounting method general purpose auto switch reed switch band rail tierod direct grommet connector terminal conduit din terminal grommet connector grommet terminal conduit din terminal grommet dc73c76c80 db53b54b64 dc73cc80c da33a34 da33aa34a da44 da44a da72a73a80 d. Long lifetime, high environmental resistance because of protected contact by glass encasing. It is singlepole, single throw spst type, having normally open ruthenium contacts. It has normally open contact and capable of switching up to 200vdc at 10w. Housings shall be molded of flame retardant abs plastic. Reed switch working principle instrumentation tools.
Ord324 datasheet pdf 7 page oki electronic componets. General description the ord211 is a small singlecontact reed switch designed for general control of lowlevel loads less than 24 v. It contains two ferromagnetic nickel and iron reed elements in an evacuated, hermetically sealed glass tube to minimize contact arcing. When an axially aligned magnet approaches the switch. Ksk1a04 reed switch overall a global leader in the design, development, and manufacture of sensor and magnetic components series datasheet ksk1a04 reed switches. Easily the casing of the reed switch body is typically made of glass and is very fragile. Recent listings manufacturer directory get instant insight into any electronic component.
As the magnet is brought into the proximity of the reed sensor switch, the device activates. Ord324 datasheet, ord324 datasheets, ord324 pdf, ord324 circuit. If shock in excess of 294ms2 is applied to a reed switch the pullin value is subject to change from standard specifications. It has high insulation resistance of 1010 ohms minimum and contact resistance less than 100 milliohms. The first application was made during 1938 when the reed switch was used as a selector switch in coaxial carrier equipment. Coto relays are available in thru hole and surface mount lead configurations with form a and form c switch options. Reed switch datasheets reed switch actuator products. Life test data load increase reduces life expectancy of reed switches environmental data unit shock resistance max. Normally the reed is open no connection between the two wires. When an axially aligned magnet approaches the switch, its magnetic force closes the reeds. Solid state auto switch direct mounting style dm9ndm9p. Magnetic proximity sensors reed mp2018 sensors reed based magnetic proximity sensor in plastic flangemount package description the mp2 series sensors are reed position sensors.
Rf, high temperature, high voltage, and high isolation versions are also available. What is a reed switch, and which magnets operate them. Our core range of actuator position switch is the m50 range, available as a reed switch or a solid state switch in both pnp or npn options and our new io link version. Reed switch is a kind of passive electronic switching component with contacts with a simple structure, small size and easy to control. Auto switch reed switch type series da73da80 their compatibility for the specific pneumatic system must be based on 2da73hda76hda80h basic safety principles according to en iso 849 the intended use of the auto switch is to detect a position of a magnet in a pneumatic cylinder.
Proximity sensors smtsme 8, for tslot qw festo core product range covers 80% of your automation tasks worldwide. Unlike a push button switch though, a reed switch works via magnetic field. The reed switches may need to be mounted suitably on various different types of pcbs, both smt and on through hole types, and at times, even in custom plastic housings that need to be encapsulated. Normally, the two reeds are separated in the envelope. Long lifetime, high environmental resistance because.
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