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

RM-1318 Reduced Miniature Reed Switch

The RM-1318 Reduced Miniature reed switches are designed for applications where a size restriction is present, but a higher Contact Rating and Carry Current capability is required. The Reed blades of this reed switch have good flexibility for contact closure force, and can carry up to 1.5 A. The flattened leads are useful for orienting the internal blades to face one way while soldering, welding etc., for maximum in-group sensitivity. The three different Release AT ranges, cover a wide range of Release AT specific applications. The cropped version of this Reduced Miniature Reed Switch is suitable for smaller plastic housings and can be soldered to cables, the SMD version is suitable for reflow on PCBs, and the vertical and horizontal mount versions are suitable for mounting on through hole PCBs.

  • Drawing of RM-1318 Reed Switch with Full Length Leads
  • Drawing of Cropped Leads
  • Drawing of SMD Formed Leads
  • Drawing of Leads formed for Horizontal mounting
  • Drawing of Leads formed for vertical mounting


Release AT Configurable. Ruthenium contact. 13.0 mm Glass length. Normally Open. Inert gas filled. 4 types of Lead Formations



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

Cylindrical and Rectangular Magnets

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

Nov 18, 2020

Actuation Distances for RM-1318 Reduced Miniature Reed Switches

RM-1318 reed switch actuation distances For easy selection of AT band and Magnet for an application, we offer Actuation distances for the RM-1318 Reduced Miniature Reed Switch in Continue reading ->

Nov 25, 2020


Contact FormA
Contact Rating (max)W/VA10.0
Switching Current (max)A0.5
Carry Current (max)A1.50
DC Switching Voltage (max)VDC180
AC Switching Voltage (max)VAC130
Breakdown Voltage (min)VDC200
Contact Resistance (max)150
Insulation Resistance (min)Ω1011
Capacitance (typ)pF0.2


Operate Time (max)ms0.35
Bounce Time (max)ms0.15
Release Time (max)ms0.15
Resonance Frequency (typ)Hz>2000
Operating Frequency (max)Hz500
Operating Temperature°C-40 to +120
Shock Resistance (½Sin wave for 11ms)G30
Vibration Resistance (10-2000Hz)G20
Test Coil Number717 102 002

Ordering Code

RM-1318-(Release AT Code)-(Operate Band)-(Formation Code)

Release AT CodeLMH
Operate BandAT10-4010-4010-40
Corresponding Release BandAT4-206-257.5-30
Formation CodeLead Type
Full Length Leads
HHorizontal Mount
VVertical Mount

Examples: RM-1318-L-10-15 denotes Low Release in 10-15 Operate Band (AT) with Full Length leads. RM-1318-H-10-15-S denotes High Release in 10-15 Operate Band (AT) with SMD formed leads.

Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this Reduced Miniature size Reed Switch. The complete usage notes are available here.

Ampere Turn Selection

Reed Sensor Manufacturer Cross Reference For any application, it is important to select the correct Ampere Turn (AT) or magnetic sensitivity of a Reed Switch, Reed Sensor or Continue reading ->

Aug 27, 2020

Product Handling

Dropping Reed switch Reed Switch Handling Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro cracks in the glass Continue reading ->

Aug 31, 2020

Manual Soldering

Soldered Reed switch Soldering of Reed Switches and Reed Sensors requires some care to ensure that these delicate devices are not inadvertently damaged. Damage Continue reading ->

Nov 10, 2020

Ferro-magnetic parts

Ferromagnetic parts Reed Switches use an alloy of Nickel and Iron with a few other elements that make the alloy Ferro-magnetic and having a low Remanence. Continue reading ->

Sep 4, 2019

Potting and Encapsulation

Dispensing unit Epoxy dispensing Nozzle When potting or encapsulating reed switch assemblies in custom housings, selection of materials are important. Continue reading ->

Sep 4, 2019

Reed Contact Protection Circuits

Inductive Load Protection Circuit 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 ->

Aug 31, 2020

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


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 RM-1318 Reduced Miniature Reed Switch is known to perform well.

Magnet sensors in Hospital Electric Beds

Magnet sensors in end position detection Hospital Electric Bed Lets face it, no one likes to get into an accident or fall sick and get admitted in a hospital! But there are Continue reading ->

Nov 6, 2020

Reed switches in Petrol and Diesel Pumps

Reed switches in petrol and disel pumps Fuel Nozzle Petrol and diesel pumping stations are explosive environments where a minor mistake could cause a great big fire. Reed Continue reading ->

Nov 7, 2020

Reed switches in Gear speed and direction sensing

Reed switches in gear speed and direction sensing Gears Mechanical machinery always have a set of manual controls that not only direct the machinery between a forward and reverse Continue reading ->

Nov 7, 2020

Reed switches and Reed sensors in Lap counter in slot car racing tracks

Reed switches in lap counter in slot car racing Slot Car Racing Slot car racing (also called slot racing) is a competitive hobby of racing with powered miniature autos which are Continue reading ->

Nov 7, 2020

Reed switches in LEGO Sensors

Reed switches in LEGO sensor Lego Mindstorms Lego Mindstorms is a hobby kit developed and manufactured by Lego for building programmable robots that use a Continue reading ->

Nov 7, 2020

Magnet sensors in Bicycle and E-bike Speedometers

Reed switches in bicycle speedometer Bicycle Speedometer Fitness is always in, and people who exercise always need feedback on how many calories they have burnt, or how Continue reading ->

Feb 17, 2022

Reed switches in Blowers

Reed switches in blowers Blower Blowers or centrifugal fans are used in various fields to move air or other gases from one area to another, either to vacuum or Continue reading ->

Nov 7, 2020

Reed sensors in Emergency lamp holders

Reed switches in emergency lamp Emergency Lamps Emergency lamps are rechargeable battery powered lamp that automatically turn on when there is a mains power outage. Continue reading ->

Nov 7, 2020

Reed sensors used in Fuel cap position sensing

Automobile Fuel cap Automobile fuel cap open A dashboard or an instrument panel located in front of the automobile driver and displays instrumentation and Continue reading ->

Nov 7, 2020

Reed switches as Impact sensors for triggering airbags

Accidental Airbag Prevention Airbags Statistics say almost 80% of automobiles use reed switch based crash sensors for triggering airbags. A ring magnet is mounted Continue reading ->

Nov 7, 2020

Reed sensors in weather proof electronics

Water proof reed switch IP67 certified Smart phone The IP67 Code or the International Protection Marking states standards for weather proof electrical and Continue reading ->

Nov 6, 2020

Reed sensors in Notebook computers and PC desktops

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

Nov 6, 2020

Reed switches and Reed sensors in Wireless Microphones

Reed switches in on/off switches in microphones Wireless Microphone Wireless Microphones convert sound into electrical signal that can then be used by other sound equipment for Continue reading ->

Nov 6, 2020

RM-1318 10W Reduced Miniature Reed Switches
13.5mm x ø1.80mm, Complete data sheet and technical specifications. This Reed Switch supersedes TRA 2029 and THA 2029 and can be considered a direct equivalent. Customers can safely use RM-1318 in place of MDSR-7 or ORD 219.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: RM-1318
3.8 based on 7 reviews