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Coto Technology
Coto Technology's reed relay & reed switch manufacturing facility is located in Mexicali, Mexico. Coto Technology, Inc. originated in Rhode Island, USA in 1917 as Coto Coil Incorporated. During the mid-1960's, Coto expanded its product line by introducing the reed relay. By 1970, Coto emerged as a leading manufacturer of reed relays with the development of the first patented Low-Thermal EMF reed relay. Coto went on to produce the first ever surface mounted reed relays in 1983, the world's smallest SMD reed relay in 1994, and the first patented reed relay with >8 GHz performance in 2001.
In 2010, Coto relocated its relay design labs and corporate offices to scenic North Kingstown, RI along the shores of Narragansett Bay. The new, high-efficiency facilities allow Coto engineers to focus on developing solutions for tomorrow's small signal switching applications. Whether it's high-speed serial data communication, signal integrity analysis, or the increasing demands for greater bandwidth and higher frequency, Coto is prepared and committed to solving the applications concerns of our customers now and in the years to come.
Today, Coto is a worldwide market leader of small signal switching products sold into the Automatic Test Equipment, Data Acquisition, Instrumentation, Process Control, Telecommunications, Medical and Security markets. Coto specializes in the manufacture of relay and switch products.
Non-standard package sizes and pinouts, custom coil and shielding designs, and multi-pole configurations are common variables. Coto relays are capable of carrying up to six amps, and can provide switching currents up to four amps along with 10-15 KV switching. Coto relays are qualified to the highest electrical test specifications in the reed relay industry. To improve efficiency, enhance responsiveness and increase capacity, Coto has renovated its manufacturing facility in Mexico by investing in additional manufacturing automation technology. Manufacturing processes utilizing ergonomic workstations, coupled with fully automated winding, wire termination, molding and laser marking increase efficiency while ensuring high levels of quality.
Coto Technology Uutiset
(7.6.13) Coto Technology introduces New Lower-Cost, RoHS-Compliant CT10 Molded Switch
Coto Technology's popular CT10 is now available in a lower-cost, RoHS-compliant version designed for use in manufacturing process temperatures up to 260° C. Offering superior performance, even in extreme conditions, the CT10-G2 is a rugged, high-reliability proximity sensor with a life of 1 billion operations.
Coto Technology, Inc. has announced the release of the new CT10-G2, a lower-cost, RoHS compliant style of CT10 Molded switch that can withstand process temperatures of up to 260 °C, yet continue to provide superior performance under extreme environmental conditions where a glass-only reed switch might crack. The CT10 is an encapsulated dry-reed switch that is activated by the presence of a magnetic field and designed for SMD mounting.
CT10 molded switches are ideal for use as proximity sensors; electric, water, and gas meters; flow sensors; pulse counters; and level sensors.
At the heart of the CT10 Series, is a single-pole, single-throw (SPST) reed switch having normally open ruthenium contacts. The sensor is a double-ended type and may be actuated with an electromagnet, a permanent magnet or a combination of both.
The surface mount CT10 switch receives a 100% final parametric test to ensure low and stable contact resistance (< 200 mohms) and accurate AT ( Ampere Turn) measurements, which ensures long operational life - even at power ratings as high as 10W. The long life is attributed to an exceptionally rugged ruthenium contact layer that ensures lifetimes up to 1 billion operations and is especially suited for severe environmental applications.
(30.5.13) Coto Technology introduces RedRock™ industry's smallest MEMS-based magnetic reed switch
Novel MEMS Technology Enables High Performance in an Ultraminiature Package
Coto Technology Inc., the leader in the design and development of small signal switching solutions to the worldwide electronics industry for over 90 years, has announced here at the Design West Conference the availability of its RedRockT RS-A-2515 Microelectromechanical Systems (MEMS)-based magnetic reed switch. Based on its unique high aspect ratio MEMS design and manufacturing processes, the switch provides all of the advantages of conventional magnetic reed switch technology, including zero power operation and high-power hot switching. Coto has married these features to the inherent benefits of MEMS-based design and manufacture, including item-to-item uniformity, robustness and small size by using wafer level packaging (WLP). The resulting solution meets the demanding requirements of applications in the medical, military, and industrial markets. The switch has a footprint of less than 2.1 mm2 (1.01 x 2.08 mm), is 0.94 mm high and is the smallest MEMS-based reed switch available on the market today.
The Coto Technology RS-A-2515 MEMS-based magnetic switch, the first of a new Coto Technology switch family, exhibits all of the high performance characteristics inherent in classical reed switches. These include closure sensitivity ranges from 5 to 25 millitesla, permitting operation up to 20mm using a small NdFeB magnet. This provides it with the ability to address a wide range of applications. The switch has a release sensitivity greater than 15 millitesla (5mT), minimizing the risk of sticking when the magnetic field is removed. The RS-A-2515 has a maximum switching voltage of 100 VDC with a switching current of 50mA DC or 35mA AC, RMS. The zero operating power is a critical advantage in power sensitive applications, particularly those operating with battery power. Marrying these major performance advantages with the inherent benefits of batch processed MEMS technology including wafer level hermetic packaging, low-cost manufacturability, and item-to-item reproducibility provide a truly unique advantage for its selection in demanding applications.
Mr. Bill Gotschewski, Coto Technology's Vice President of Sales and Marketing said, "Our newly introduced RedRock MEMS-based switch further demonstrates the leadership position of Coto in the small signal switching business. This time we have taken a gigantic leap in adopting a unique technology -- high aspect ratio MEMS -- as the platform for migration of traditional magnetic reed switch solutions. We believe that the combination of our traditional magnetic reed switch technology with a MEMS platform will be an enabling vehicle for many high performance applications that require extremely small switch size. I am gratified that we have been able to create a number of design wins with our RedRock switch to date and we are looking forward to collaborating with many other OEMs to enable them to create truly differentiated and successful applications for their products."
MEMS-based Magnetic Reed Switch Technologies
Smallest, Mass-Produced Form “C” SMD Reed Relay Available
Coto Technology’s 9852 Form “C” SMD, ultra-miniature reed relay features longer life and optimized performance for ATE, Process Instrumentation and Telecommunications applications. Expected life is 200 million cycles (N/O contact), and 100 million (N/C) at 1V 10mA load. RF bandpass (-3dB) is 4GHz (N/O) or 3GHz (N/C). Isolation and return losses at 1 GHz are –10dB and –20dB respectively. An external magnetic shield reduces electromagnetic interaction between closely spaced relays. And, with a footprint of 0.078 sq. in., the 9852 is the smallest Form “C” SMD reed relay available in high-volume mass production. The 9852’s combination of small size, long life and good RF bandpass is unattainable by electromechanical or micromachined relays. Gull-wing, “J”-lead or axial surface-mount styles are available in tubes or tape-and-reel spools.
Coto Develops a Dual-Switch, Miniature SIP Reed Relay
Coto Technology has introduced the 9092 Miniature SIP reed relay - a taller version of its popular 9091 miniature SIP reed relay. The 9092 (which measures .600"x.150"x.350") provides designers a small SIP relay with 2 Form A switching capability in a package with the same footprint as the standard 9091. Raising the height of the relay allows for the additional switch, while a 6 pin layout on a 0.1" pitch grid provides electrical connections. A standard external magnetic shield reduces interaction of relays that may be mounted in close proximity; high dielectric strength materials and molded thermo-set body provide a robust design. The 9092 utilizes Coto's 10W switch technology, making these SIP relays ideal for use in ATE applications and other high reliability test, measurement and telecommunications applications where high board density and long life are key requirements. The 9092 Miniature SIP relay is available in 5V and 12V coils with an optional diode.
Coto Expands Economy SIP Series
Coto Technology has expanded its 9081 Spartan SIP Reed Relay Series by adding two new Form C versions into this popular SIP package. The 9081C has a .2"x.4"x.1"x.1" footprint while the 9081C1 has a .2"x.2"x.2"x.2" footprint. By offering both pin configurations, Coto is able to match any competitor offering similar products. The 9081C reed relays contain Coto's popular RI-90 Form C reed switch – one that is known for its high reliability. The SIP relays are sturdy and well suited for a wide variety of applications in Security, Instrumentation, and Process Control. Parts are available in the standard plastic molded version or with an optional external magnetic shield to reduce interaction of relays mounted closely.
Coto Introduces Ground-Breaking BGA Relay
Coto Technology has introduced the first four independent channel, form-A, planar BGA Reed Relay. The B41 series is the latest offering in Coto's growing line of RF capable, reed relay products. Unlike Coto's B10, B40 and other high-performance RF reed relay products, no slot or hole in the PC board is required to mount the device – a feature which simplifies the design of multi-layer boards. Coto's new, patented technology also allows for shorter RF paths in a controlled 50 ohm environment to minimize signal attenuation. Each channel has an RF insertion loss (–3dB roll-off point) of >8 GHz. A combination of coaxial and magnetic shielding reduces adjacent closed inter-channel RF crosstalk to –40dB at 1 GHz test signal and magnetic interaction between channels is reduced to <16%. Applications include Mixed Signal & IC Testers where the B41's high package density and excellent RF performance are particularly important. BGA packaging, with JEDEC standard dimensions, allows B41 relays to be easily installed on PC boards designed for surface mount processing using either manual or automated pick-and-place techniques.
New BGA Reed Relays Provide Superior RF Performance
Coto Technology, of Warwick, RI, has announced the release of two patented ball-grid-array (BGA) Reed Relays. The B10 and B40 BGA relays utilize breakthrough patented technology to provide leadless relay designs with enhanced RF performance. The signal path in the BGA between input and output is designed as an RF transmission line, with an RF impedance close to 50 ohms throughout the relay. With either B10 or B40 BGA relays, the designer is able to switch or pass signals with wider bandwidth and faster rise time than alternate technologies. This is particularly important for Mixed Signal IC testers. BGA packaging allows relays to be easily integrated on boards designed for surface mount processing. The B10 is a single channel Form A BGA that uses a minimum board space of only 0.1 sq in. 3.3V or 5V coils are standard and the RF insertion loss (–3dB roll-off point) is >10 GHz. Single channel simplicity makes B10 an economical choice for RF switching, with prices < $10.00 at 1K. Delivery: stock to six weeks. The B40 is a BGA with four independent form A channels in one quad package requiring only 0.215 square inches of board space. Both 3.3V and 5V coils are available and the RF insertion loss (–3dB roll-off point) is >11 GHz. Interchannel RF crosstalk is minimized by a combination of coaxial and magnetic shielding