Garden Grove 92841, CA Alternatively relays may be warmed prior to soldering. Coto Technology, Inc. originated in Providence, Rhode Island, USA in 1917 as Coto Coil Incorporated – a company specializing in the design and manufacture of coil windings. Ferromagnetic screening can be used to contain this magnetic field, so allowing closer placement of reed relays on a PCB. Reed relays have also found numerous applications in RF and microwaveswitching applications. Tungsten contacts are used exclusively for our high voltage 'D' series range, where they are offered as high voltage switching contact able to switch voltages up to 10kV DC or AC peak at very low current. MERCURY WETTED CONTACT: A form of reed switch in which the reeds and contacts are wetted by a film of Mercury obtained by a capillary action from a Mercury pool encapsulated within the reed switch. Coil Temperature Compensation Coil resistance, as well as 'Must Operate' & 'Must Release' voltages, is quoted at 20°C, unless otherwise stated. Application Notes - Reed Relays High Voltage Reed Relays The principal function of a high voltage reed relay is to isolate as high a voltage as possible, Cynergy3 achieve this through the use of evacuated reed switches. Figure 4 shows a suitable arrangement for 'D' & 'S' type high voltage relays. Also the internal construction of the relay, including complete epoxy encapsulation, results in reed relays with insulation resistances of 1x10E+12 Ohm or greater, between mutually isolated terminals. Cynergy3 Components Ltd It has a biasing magnet so in the closed position, the relay coil draws no power. Relays are also available with different pin configurations like three pin, four pin and five pin relays. In general breakdown across the contacts occurs at a higher RF peak voltage than DC. The standard performance measure of an RF reed relay, adopted by Cynergy3, is Effective Series Resistance (ESR); this is because these relays are very often used in high “Q” circuits, which experience high currents throughout the frequency range, as found in certain ATU circuits. The 9006 Series is a general-purpose economy potted version of the 9001 for applications with less stringent requirements. RRE Home » Reed Switch and Reed Sensor Applications » Types of Applications » Electromagnetic or Relay Type Reed Relay in Food Processor Application When it is necessary to control a circuit load by using a separate low-power signal, or where the states of several circuits must be controlled by a single signal, such types of Reed Switch applications can be classified are Relay Applications. It should be noted that all data is presented, throughout, at an assumed ambient temperature of 20°C, unless otherwise stated. Pickering's relay division has had considerable experience in picking the right reed to use to construct a relay. Cynergy3's reed relays are high performance products and the materials and methods of construction are significant factors in achieving performance specifications. Der Reedschalter sitzt in der Mitte der Spule. These relays are intended for use in DC or AC (50Hz to 60Hz) applications. Application Notes - Reed Relays High Voltage Reed Relays The principal function of a high voltage reed relay is to isolate as high a voltage as possible, Cynergy3 achieve this through the use of evacuated reed switches. Relay Applications. Many of the RF reed relay designs are of open frame construction to achieve optimum RF performance, these designs need to be handled with due care to avoid damaging the exposed coil, contact and screen connections. Cynergy3 propose that either low residue fluxes are used in the soldering process (to eliminate the need for cleaning), or that the reed relays are fitted onto the PCB after the cleaning process has taken place. Please contact sales for any particular requirements. Various types of relays are used in various applications based on different criteria such as rating of contacts, number & type of contacts, the voltage rating of contacts, operating lifetime, coil voltage & current, package, and so on. Reed Relay Market Size by Applications: Security Systems Telecom Equipment Process Control Systems Automatic Test Equipment Electronic Instrumentation . A magnetic field is produced, when power is applied to the coil of a reed relay. FRD12000/13000 Series: Electrical connections to the relay contacts on the FRD12000/13000 Series relays are made directly onto the reed switch leadout. Alternatively, for manual soldering iron operations: 350oC ±10oC, application time 3 seconds. All reed relay applications wholesalers & reed relay applications manufacturers come from members. Â$‡Ä†Ûìz§ož©^'ùÖac óÆeéC|÷Ïb~KEÎþÝàèapbUÎg ¯ñz€ cczø endstream endobj 39 0 obj<>/Metadata 36 0 R/Pages 35 0 R/Type/Catalog/PageLabels 33 0 R>> endobj 40 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>>/Type/Page>> endobj 41 0 obj<> endobj 42 0 obj<> endobj 43 0 obj<> endobj 44 0 obj<> endobj 45 0 obj<> endobj 46 0 obj<> endobj 47 0 obj<>stream Partially screened relays will offer extended current carry capability at elevated temperatures and frequencies up to 30MHz, over unscreened variants, due to lower ESR. Conversely, breakdown outside the switch (i.e. Because the contacts in a Reed Relay are hermetically sealed, the contacts can switch low level signals as low as femtoamps and nanovolts. High voltage breakdown mechanisms at RF differ from those at DC. The input signal may be heat, light, electricity and magnetism. Cynergy3 recommend the following wave flow soldering profile: 250oC ±10oC, immersion time 3 seconds. These are available with Tungsten or Rhodium contacts, depending on the switching requirements of the applications. It should be noted that these parameters will change at a rate of 0.4% per °C change in temperature. Surface contamination may result in poor conductivity for low-current signals. Cynergy3's range of RF reed relays are carefully designed to provide minimal RF signal loss and low contact resistance. By definition, Electrical Relay is a switching device that can be used to open or close the contacts electrically. Used to simulate the outer conductor of a coaxial cable for high frequency transmission . Reeds that are chosen in this way for the best performance are usually referred to as Instrument Grade reeds. to two pins within the relay on each side of the switch . Operate and release times for the relays are quoted with coil suppression fitted (unless otherwise stated). The coil field moves the blade to the normally open contact blade which … These relays are well suited for applications in Security, Instrumentation and Modems. Note that the 'D' Series has magnetic screening fitted as standard. Care must be taken when hand soldering to the contact terminals, as physical and thermal shocks can damage the glass to metal seals. For such applications we have relays built with high insulation resistance reed switches. Portable Defibrillators - Reed Relay application describes how our reed relay series meet high voltage demands of portable defibrillators with low power consumption The switching power, when quoted, will be for a resistive load. Normally closed (Form B) reed relays. The broad range of special reed relays ensures signal level, high current and high voltage applications can be handled extremely safely and precisely. switch to coil or screen), caused by surface tracking, can occur more readily at high frequency than at DC. Tungsten is a good general purpose switching contact material but the higher contact resistance means it is not well suited for RF applications. is connected to the coil, a residual voltage is retained at the relay coil which may cause incomplete restoration and faulty operation. Cynergy3's range of RF reed relays are carefully designed to provide minimal RF signal loss and low contact resistance. It should be noted that many of the RF relays do not employ magnetic screening, as this can adversely affect the ESR; in this case refer to figure 3, for a suitable layout for RF relays without magnetic screening. These are available with Tungsten or Rhodium contacts, depending on the switching requirements of the applications. It is an automatic switch when excited with an input signal changes the output circuit quickly. Reed arrays passed out of use in the mid-1990s, being unnecessary in digital telephone systems such as DMS-100 and 5ESS switch. We offer a wide array of reliable and cost-effective products from standard solutions to custom designs. A reed relay is a type of relay that uses an electromagnet to act directly on reed-like contact of a reed switch contained within a glass envelope, typically bringing the reeds together to make contact when the electromagnet is energised. 2MHz. Rhodium offers superior low contact resistance, which, coupled with Cynergy3's copper plated reed switch technology, enables Cynergy3 to produce very low loss RF reed relays, with exceptional current carry performance. Browse: Portable Equipment. to minimize magnetic coupling between the relay and external magnetic fields. Experience has shown, for example, that ruthenium contacts offer much better performance than alternative contact materials except in higher current applications. Very sensitive reed relays with high coil resistance. A rigorous reliability testing program is therefore a vital tool for providing our customers with technical support, and also for continuously improving the quality of Coto’s products . 7 Cobham Road If after the soldering process the customer wishes to clean the PCB's containing Cynergy3 relays then the use of post operative cleaners such as IPA or HCFC based solvents with low pressure brush applicators is recommended. Alternatively Cynergy3 can arrange product testing to other MIL, DEFSTAN or IEC standards with various third party test houses for specific applications. Reed Relay applications continue grow every year de- spite severe competition from other small switching de- vices such as semiconductors and electromechanical armature style relays. The isolation voltages quoted in the data are for DC or AC peak. Reed Relay; Reed Relays consist a set of magnetic strips which is closed within a glass tube. In switching applications where a semiconductor (transistor, UJT, etc.) The RF reed relays offered by Cynergy3 have various screening options: Unscreened relays maybe used in RF circuits where the highest currents occur at the lower frequency bands e.g. When the coil is energized, the two reeds are drawn together such that their contacts complete a path through the … In reed relays, current applied to this winding generates a magnetic field which operates the reed switch . RF Reed Relays. The principal function of a high voltage reed relay is to isolate as high a voltage as possible, Cynergy3 achieve this through the use of evacuated reed switches. A mercury-wetted reed relay is a form of reed relay that employs a mercury switch, in which the contacts are wetted with mercury. Coto Technology’s reed relay & reed switch manufacturing facility is located in Mexicali, Mexico. This reed operates as both an armature and a contact blade.The magnetic field applied to the coil is folded around this tube that makes these reeds motion so that switching work is acts. Mercury reduces the contact resistance and mitigates the associated voltage drop. Search our portfolio of Axicom Reed Relay V23100 -V4 products for for Low-temperature Applications and select your specifications. It should be noted that relays, used in a power switching application, will experience reduced operating life; it is recommended that sales be contacted for advice on specific applications. 50 or 60Hz). Reed switch also called reed relay, is a low current magnetic switch with a concealed pair of contacts that close and open in response to magnetic field near it. —}²ªrù¯ôî:Å»{Ø´Ã1. It is recommended that all relay coils be suppressed, by fitting a reverse biased diode across the relay coil; this is essential for latching relay types. The following are some general guidelines, which should be considered when working and designing with Cynergy3's range of reed relays. Aleph Reed Relay Application Notes Handling Shock forces (e.g., drop from a height of 30cm or more) or application of high pull or twist forces to external terminals may result in permanent damage to relays. H‰\“Ëjã@E÷úŠ^&‹ [ª®r@;/æÁxæd©íbI´å…ÿ~úꆌÀÖR×=UtçÛýnßw“ËÆ¡9„ɝº¾á:ÜbÜ1œ»>[®íšéóiþo.õ˜¥µ‡ûu They are ideal for such applications as transformer or cable testing or any other automatic test equipment where high voltages are involved. We doesn't provide reed relay applications products or service, please contact them directly and verify their companies info carefully. With Sanyu Electric, Nucletron represents the technology leader in the reed relay market. By using DC coils, there may be a reduction in; the danger of incomplete restoration, the contact pressure, and the vibration resistance. Please contact sales for further information on the suitability of various cleaning solutions. Numerous applications demand switch contacts that are closed for long periods, only opening when a fault condition arises. Ferndown Industrial Estate reed relay applications. United States, © 2019 Sensata Technologies, Inc. All Rights Reserved. The following guidelines should therefore be followed when adopting assembly, soldering and cleaning processes. The contacts are concealed inside a glass tube and its ends terminated out of the glass tube for external connection. The reed relays’s mechanical lifetime is also much higher than an electromechanical relay. Reed relay specifications are different to those of other components normally found in electronic circuits. 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