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

RM-1318 Reduced Miniature Reed Switch Drawing
RM-1318 Cropped reed switch RM-1318 SMD reed switch RM-1318 Welded reed switch RM-1318 Goal-post formed reed switch

Click thumbnails to view actuating distances.


♦ Release AT configurable from 40% to 90% of Operate AT ♦ Glass sealed on round portion of wire for high seal strength ♦ Flattened leads oriented to contact ♦ Sputtered Ruthenium contact Capable of switching 230VAC ♦ RoHS Compliant and Lead-free ♦ Not Sensitive to ESD ♦ 10-40 Operate AT band


This reed switch is designed for applications where a size restriction is present, but a higher Contact Rating and Carry Current capability is required. The blades have a good flexibility, for fast operation and good contact 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 Differential ranges available, cover a wide range of Release AT specific applications. This reed switch can be supplied molded with a 0.25 mm wall around the glass capsule for use in hazardous industrial environments to withstand higher shock and vibration. This reed switch is completely Lead-free and conforms to the RoHS directive.


This reed switch is suitable for use in the following applications and in many others: radio transmitters, instant water heaters, defective lamp detection, inclination sensors, pressure gauges, lake current measurement, fuel pumps, electric fishing reels, LEGO sensors, portable air conditioners


Differential Code L M H
Operate Range AT 10 – 40 10 – 40 10 – 40
Release Range AT 4 – 20 6 – 25 7.5 – 30
Contact Rating (max) W/VA 10.0 10.0 10.0
Switching Current (max) A 0.5 0.5 0.5
Carry Current (max) A 1.5 1.5 1.5
DC Switching Voltage (max) VDC 180 180 180
AC Switching Voltage (max) VAC 130 130 130
Breakdown Voltage (min) VDC 200 200 200
Contact Resistance (max) 100 120 150
Insulation Resistance (min) Ω 1011 1011 1011
Capacitance (min) pF 0.2 0.2 0.2


Operate Time (max) ms 0.5
Bounce Time (max) ms 0.15
Release Time (max) ms 0.15
Resonance Frequency Hz >2000
Operating Frequency Hz 500
Operating Temperature °C -40 to +200
Shock Resistance (½Sin wave for 11ms) G 30
Vibration Resistance (10-2000Hz) G 20
Test Coil Code 717 102 002

Ordering Code

RM-1318-(Differential Code)-(Start Operate AT)-(Finish Operate AT)-(Lead Formation code)
Please check our AT band FAQ for help on release AT codes

Cropped SMD Verical Mount Horizontal Mount

The cropped version 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. Please click on the thumbnails to view the relevant actuating distances for various Operate AT bands. Information on tolerances for these lead formations can be found here.
RM-1318-L-10-15 denotes 10-15 Operate AT with unmodified leads
RM-1318-H-10-15-S denotes low differential in 10-15 Operate AT band with SMD formed leads

Other Special Configurations Available

Lower Static Contact Resistance
Dynamic Contact Resistance Limit
Higher Insulation Resistance
Special Release Limits
Gold plated leads

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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