Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971
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Ultra Miniature Reed Switch, UM-0018-M

  • Drawing of UM-0018-M Ultra Miniature Reed Switch with Full Length Leads
  • Drawing of UM-0018-M Reed Switch with cropped leads
  • Drawing of UM-0018-M with SMD Formed Leads
  • Drawing of UM-0018-M with Formed Leads for Horizontal Mounting
  • Drawing of UM-0018-M with Formed Leads for Vertical Mounting
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Features

5.0 mm Glass length. Ruthenium contact. Normally Open. Inert gas filled. 4 types of Lead Formations.

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Benefits

Omni-polar. Does not require power for operation. Sputtered Contact. RoHS Compliant. Not ESD Sensitive.

πŸ“Description

The UM-0018-M Ultra Miniature Reed Switch is engineered specifically for high-speed signal load switching, boasting an impressive Operate Time of less than 0.3 milliseconds. This rapid response time makes it ideal for applications requiring swift and reliable operation. Capable of handling loads up to 5W at 100V, it ensures robust performance even under demanding conditions.

The flattened leads facilitate efficient orientation during batch assembly, enhancing sensitivity and ease of integration. For compact applications, variants with cropped leads are available, enabling seamless integration into smaller plastic housings or direct soldering onto cables. Additionally, they are compatible with SMT PCBs, featuring slots for versatile mounting options.

In manufacturing processes, the SMD version of the UM-0018-M supports reflow soldering, ensuring secure and efficient attachment to SMT PCBs. Meanwhile, vertical and horizontal mount versions cater to through hole PCB applications, offering flexibility in installation methods based on project requirements.

These features collectively make the ultra-miniature UM-0018-M an excellent choice for applications across various industries, including telecommunications, automotive electronics, and consumer electronics. Its combination of high-speed switching capability, robust power handling, and versatile mounting options positions it as a reliable solution for demanding signal switching needs. Whether for compact consumer devices or industrial automation systems, this ultra miniature reed switch delivers consistent performance and durability.

Magnets for Actuating Reed Switches and Reed Sensors

Standard magnets-RRE Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading ->

Sep 3, 2024

Actuation Distances for UM-0018-M Reed Switches

UM-0018-M reed switch actuation distance For easy selection of AT band and Magnet for an application, we offer Actuation distances for the UM-0018-M Reed Switch in, Cropped, SMD, Continue reading ->

Apr 9, 2025

⚑️Electrical

Contact FormA
Contact Rating (max)W/VA5.0
Switching Current (max)A0.35
Carry Current (max)A0.5
DC Switching Voltage (max)VDC100
Breakdown Voltage (min)VDC150
Contact Resistance (max)mΞ©200
Insulation Resistance (min)Ξ©109
Capacitance (typ)pF0.2

πŸ“ŠMiscellaneous

Operate Time (max)ms0.35
Bounce Time (max)ms0.3
Release Time (max)ms0.1
Resonance Frequency (typ)Hz>2000
Operating Frequency (max)Hz500
Operating TemperatureΒ°C-40 to +120
Shock Resistance (Β½Sin wave for 11ms)G30
Vibration Resistance (10-2000Hz)G20
Test Coil Number717 102 003

βš™οΈOrdering Code

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

Operate BandAT7-20
Corresponding Release BandAT3-18
Formation CodeLead Type
Full Length Leads
CCropped
SSMD
HHorizontal Mount
VVertical Mount

Examples: UM-0018-M-7-12 denotes 7-12 Operate Band (AT) with Full Length leads. UM-0018-M-15-18-S denotes 15-18 Operate Band (AT) with SMDΒ formed leads.

Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Higher Insulation Resistance, Special Release Limits, Gold plated leads.

πŸ› οΈUsage Notes

Here are some of the recommended usage notes to ensure maximum durability of this reed swtch. The complete usage notes are available here.

Ampere Turn Selection for your Application

Ampere Turn Selection 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

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Jun 17, 2024

Soldering of Reed Switches

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Jun 17, 2024

Ferro-magnetic Parts

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

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Jun 17, 2024

Protection Circuits for Reed Switches

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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-M Ultra Miniature Reed Switch is known to perform well.

Drone Charging Positioning Using Reed Sensors

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Dec 8, 2024

Multiport Valves in Swimming Pools Use Reed Switches

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Nov 23, 2024

Reed Switches in Pneumatic Pick and Place Robots

Pneumatic gripper application In modern manufacturing, pick-and-place robots equipped with pneumatic grippers are essential for feeding parts from vibratory bowl Continue reading ->

Nov 9, 2024

Smart Cover Sensing on Tablets Using Reed Switches

Handheld tablet with Smart Cover 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

Capsule Endoscopy Camera Activation using Reed Switches

capsule endoscopy For most people, an endoscopy is extremely intrusive and uncomfortable. But, before a Gastroenterologist can fully diagnose a patient's Continue reading ->

Sep 3, 2024

Defibrillators Use Reed switches to Switch High Voltages

Defibrillator Defibrillators are equipments that deliver an electric current to the heart, when cardio-pulmonary resuscitation, or CPR is required. Continue reading ->

Sep 3, 2024

Ignition detection in Keys using Reed Sensors

key ignition 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

Feeding tubes are Used with a Reed Sensor for Position Sensing

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Sep 11, 2024

Electric Vehicle Chargers use Reed Sensors

E-car charger Electric vehicles (EVs) are engineered to deliver an impressive range of 300-450 kilo-meters on a single charge, offering drivers a Continue reading ->

Sep 3, 2024

Light Sabers that Use Reed Switch for Special Features

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Sep 3, 2024

Canal Hearing Aids Use Reed Sensors for Volume Level Cycling

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Sep 3, 2024

Greeting Cards With circuitry are Triggered with Reed Sensors

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Sep 3, 2024

Notebook Computer Sleep Mode using Reed Sensors

Notebook computer Notebook computers and Netbooks are part of personal life. Screen time on these devices is anywhere between 2 and 6 hours and this too Continue reading ->

Sep 3, 2024

Pacemakers Use Reed sensors for Mode Changing

pacemaker Artificial pacemakers are implantable devices that generate electrical impulses to the heart, to contract the muscles and regulate the Continue reading ->

Sep 3, 2024

Vagus Nerve Stimulators Use Reed Sensors for Activation

Vagus Nerve stimulator The Vagus nerve, located in the neck, serves as a crucial conduit of communication with the brain. For individuals coping with epilepsy, Continue reading ->

Sep 3, 2024

A Spirometer Use Reed Sensors to Assess Lung Function

Spirometer 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

UM-0018-M 5W Ultra Miniature Reed Switches
5.0 mm x ΓΈ1.80 mm, Flattened leads, complete data sheet and technical specifications. Customers can safely use UM-1018-M in place of RI-80, RD-75AA or HSR-0035R
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: UM-0018-M
4.2 based on 16 reviews