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 We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading ->

Actuation Distances for RM-1318 Reduced Miniature Reed Switches

RM-1318 reed switch actuation distances On/Off distances for the 13.0 mm RM-1318 reed switch having cropped, SMD, Horizontal Mount...Continue reading ->


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...Continue reading ->

Product Handling

Dropping Reed switch Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading ->

Manual Soldering

Soldered Reed switch Manual Soldering of reed switch leads may be required when using custom plastic housing...Continue reading ->

Ferro-magnetic parts

Ferromagnetic parts Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading ->

Potting and Encapsulation

Dispensing unit As some potting compounds cure over 24 hours, the glass seals should be protected....Continue reading ->

Reed Contact Protection Circuits

Inductive Load Protection Circuit When a reed switch is to be connected to an inductive load or a...Continue reading ->

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 beds come with a adjustment buttons that either raise the upper portion...Continue reading ->

Reed switches in Petrol and Diesel Pumps

Reed switches in petrol and disel pumps Petrol and diesel pumps use reed switches to sense if the nozzle has been...Continue reading ->

Reed switches in Gear speed and direction sensing

Reed switches in gear speed and direction sensing Miniature ferrous part detection sensors can be positioned near gears to sense the speed...Continue reading ->

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 tracks usually count the number of laps by having a small...Continue reading ->

Reed switches in LEGO Sensors

Reed switches in LEGO sensor Reed Switches can be built into LEGO bricks to sense position and rotation. Position...Continue reading ->

Magnet sensors in Bicycle Speedometers

Reed switches in bicycle speedometer A magnet can be attached to one of the spokes in the wheels, and...Continue reading ->

Reed switches in Blowers

Reed switches in blowers In blowers and vacuum ducts, a vane with a tiny light magnet is fitted...Continue reading ->

Reed sensors in Emergency lamp holders

Reed switches in emergency lamp When emergency lamps are taken off their holders, a buzzer should sound. The lamp...Continue reading ->

Reed sensors used in Fuel cap position sensing

Automobile Fuel cap Driver information. Instrument panel dashboards need to show more and more information for the...Continue reading ->

Reed switches as Impact sensors for triggering airbags

Accidental Airbag Prevention Statistics say almost 80% of automobiles use reed switch based crash sensors for triggering...Continue reading ->

Reed sensors in weather proof electronics

Water proof reed switch In weather smart phones tablets, hermetically sealed reed sensors within the IP67 enclosure can...Continue reading ->

Reed sensors in Notebook computers and PC desktops

Notebook computer In notebook computers the screen is closed to put the system into sleep mode....Continue reading ->

Reed switches and Reed sensors in Wireless Microphones

Reed switches in on/off switches in microphones In wireless microphones and radio transmitters, unnecessary speaker crackle can be avoided at the...Continue reading ->
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
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