Ultra Miniature Reed Switch, UM-0018-H

📝Description

This highly sensitive Ultra Miniature reed switch is meticulously engineered for demanding low power, high-speed switching applications, boasting an Operate Time of less than 0.3 milliseconds. Specifically, the 7.0 mm glass variant excels in minimizing Contact Resistance, allowing it to effortlessly handle higher loads up to 10W at 100V, ensuring reliable performance in diverse operating conditions.

The design incorporates flattened leads, facilitating precise orientation during batch assembly processes such as soldering or welding, thereby optimizing sensitivity within groups of switches. For applications requiring compactness, the cropped version of the UM-0018-H ultra miniature reed switch is ideal, fitting seamlessly into smaller plastic housings and offering versatility for direct soldering onto cables.

Furthermore, the SMD version of the switch supports reflow soldering on PCBs, enhancing manufacturing efficiency and reliability in surface-mount technology applications. For traditional through hole PCB setups, both vertical and horizontal mount versions are available, providing flexibility in installation based on specific project requirements.

These features collectively make this ultra-miniature reed switch a preferred choice across various industries, including telecommunications, automotive electronics, and medical devices. Its combination of high sensitivity, rapid switching capabilities, and robust power handling ensures consistent performance in critical applications. Whether integrated into compact consumer electronics or industrial control systems, these reed switches deliver dependable operation and durability, meeting the stringent demands of modern technology.

Magnets for Actuating Reed Switches and Reed Sensors

Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading -> Sep 3, 2024

Actuation Distances for UM-0018-H Reed Switches

For easy selection of AT band and Magnet for an application, we offer Actuation distances for the UM-0018-H Reed Switch in cropped, SMD Continue reading -> Sep 3, 2024

⚡️Electrical

📊Miscellaneous

⚙️Ordering Code

UM-0018-H-(Operate Band)-(Formation Code)

Examples: UM-0018-H-7-12 denotes 7-12 Operate Band (AT) with Full Length leads. UM-0018-H-15-18-H denotes 15-18 Operate Band (AT) with Goal-post SMD formed leads for horizontal mounting.

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 reed switch. The complete usage notes are available here.

Ampere Turn Selection for your Application

Selecting the appropriate Ampere Turn (AT) or magnetic sensitivity for a Reed Switch, Reed Sensor, or Magnet Sensor is crucial in any Continue reading -> Jul 24, 2024

Handling of Reed Switches

Handling of Reed Switches Reed Switches, Reed Sensors, and Magnet Sensors are delicate devices prone to developing micro cracks in Continue reading -> Jun 17, 2024

Soldering of Reed Switches

Soldering Reed Switches and Reed Sensors requires meticulous handling to safeguard these delicate components against inadvertent damage. Continue reading -> Jun 17, 2024

Ferro-magnetic Parts

Reed Switches utilize a nickel-iron alloy, sputter coated with additional Ruthenium to render it ferromagnetic while maintaining low Continue reading -> Jun 17, 2024

Encapsulation and Potting

Encapsulation Nozzle When potting or encapsulating reed switch assemblies in custom housings, the choice of materials plays a critical Continue reading -> Jun 17, 2024

Protection Circuits for Reed Switches

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. Continue reading -> Jun 17, 2024

🧰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 UM-0018-H Miniature Reed Switch is known to perform well.

Drone Charging Positioning Using Reed Sensors

Surveillance drones are increasingly used for monitoring factory campuses overnight, providing real-time security and operational data. Continue reading -> Dec 8, 2024

Distilled Water Level Monitoring in Batteries Using Reed Switches

In the solar power industry, traditional lead-acid batteries that require distilled water are highly regarded for their longevity and Continue reading -> Dec 6, 2024

Smart Cover Sensing on Tablets Using Reed Switches

In the absence of smart covers, users must manually put their tablets and handheld devices to sleep or turn them off by pressing the Continue reading -> Sep 3, 2024

Ignition detection in Keys using Reed Sensors

In ignition detection in automobile, two primary types reign supreme: the traditional manual key and the more modern start button, Continue reading -> Sep 3, 2024

Light Sabers that Use Reed Switch for Special Features

Light Sabers stand as iconic weapons wielded by both Jedi and Sith, serving as symbols of power and prowess in combat across galaxies Continue reading -> Sep 3, 2024

Greeting Cards With circuitry are Triggered with Reed Sensors

Even amidst the ubiquity of smartphones and digital communication, the timeless tradition of exchanging greeting cards persists as a Continue reading -> Sep 3, 2024

Radio Controlled Airplanes and Gliders Use Reed Sensors

Radio controlled airplanes, including gliders and helicopters, are available in a wide range of sizes and complexities, catering to both Continue reading -> Sep 3, 2024

Fluid Level sensing on Ships and Yachts

In maritime vessels like ships and yachts, meticulous fluid level sensing of fuel, sewage, and portable water is paramount for smooth Continue reading -> Sep 3, 2024

Washing machine vibration detection Using Reed Sensors

Reed Switches are used in bi-directional vibration sensors. These sensors are used in a Washing machine to detect vibration going above Continue reading -> Sep 3, 2024

Electric Toothbrushes Use Reed Sensors

Electric toothbrushes are designed to make the brush head and bristles move in rapid motions, either in a back-and-forth motion, or in a Continue reading -> Sep 3, 2024

Dentist Drill Application Uses Reed Sensors for Motor control

A dental drill or hand-piece is a hand-held, mechanical instrument used to perform a variety of common dental procedures, including Continue reading -> Sep 3, 2024

A Spirometer Use Reed Sensors to Assess Lung Function

A Lung function test or Pulmonary Function test, PFT for short, is a system to evaluate the respiration system of a patient. It uses a Continue reading -> Sep 3, 2024