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

MS-105 Miniature PCB Mountable Reed Sensor



10W Contact Rating. 12.7 mm PCB Pitch. Normally Open contact. Two sensitivity bands. Two Lead Formations.



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


This micro miniature PCB mountable reed sensor is designed for switching 10W.  The internal blades always parallel to the top surface of the sensor. The sensors are tested 100% for operate and release AT, Contact Resistance and Variable Contact Resistance before packing. Being an omnipolar device, this sensor can be actuated with either a north pole or a south pole or both. Choosing the right AT band, magnet strength, and operating axis, will restrict the number of operates and releases to one.

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 MS-105 Reed Sensors

RRE MS-105 magnet actuation Operate and release distances for the MS-105 reed sensor in the three standard AT...Continue reading ->


Contact FormA
Contact Rating (max)W/VA10.0
Switching Current (max)A0.5
Carry Current (max)A0.75
DC Switching Voltage (max)VDC100
Breakdown Voltage (min)VDC150
Contact Resistance (max)150
Insulation Resistance (min)Ω109
Capacitance (typ)pF0.2


Operate Time (max)ms0.35
Bounce Time (max)ms0.30
Release Time (max)ms0.10
Resonance Frequency (typ)Hz<2000
Operating Frequency (max)Hz500
Operating Temperature Range°C-40 to +140
Shock Resistance (½Sin wave for 11ms)G30
Vibration Resistance (10-2000 Hz)G20

Ordering Code

MS-105-(Operate Band Code)

Operate Band Code

Example: MS-105-2 denotes MS-105 Reed Sensor in 15-20 Operate Band (AT).

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

Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this product. 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 ->

Reflow Soldering

Drawing of SMD reflow soldering curve Reflow Soldering is the process of automatically soldering multiple devices to a PCB. Continue...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 ->

Reed Contact Protection Circuits

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


Although we can never restrict the use of a reed sensor to a particular field, the following is a list of some of the applications that the MS-105 Reed Sensor is known to perform well.

Reed Sensors for Early Brake Sensing

Brake pedal When the brake pedal is pressed, the magnet is the first to move away...Continue reading ->

Reed Sensors in Automobile Power windows

Car power window The motor which drives the glass up or down has a multi-pole ring magnet...Continue reading ->

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 Model Train Tracks

Reed switches in signal moduling in model train track Reed Switches are placed under train tracks near a junction and each train is...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 ->

Reed switches and Reed sensors in Pressure Gauges

Reed switches in bourdon tube pressure gauge Bourdon tube pressure gauges are fitted with a magnet on the Bourdon tube itself...Continue reading ->

Reed switches in Coolant flow sensing

Reed switches in coolant flow sensing A simple, cost effective reed switch based flow sensor can be connected in the...Continue reading ->

Magnet sensors in Low fluid level monitoring

Reed switches in low fluid level monitoring Wind screen viper fluid, brake oil, power steering oil, and radiator coolant tanks can...Continue reading ->

Reed sensors in Central Locking of Cars with Remote Keys

Reed switches in door sensors In newer cars with electronic keys, the key code is compared with onboard computer...Continue reading ->

Reed sensors in Accurate fuel level sensing

Reed switches in fuel level sensing Special reed sensors with an integrated resistor can be mounted on PCBs to give...Continue reading ->

Reed switches and Reed sensors in Sewing machine pedals

Reed switches in sweing machine pedals Reed Sensors inSewing Machine's controls the speed of switching. These are far superior to...Continue reading ->

Reed sensors in Electric Toothbrushes

Reed switches in electric toothbrush Electric toothbrushes use Reed Sensors to sense change in direction when switching from the...Continue reading ->

Magnet sensors for Dish Washer spray arm jam detection

Reed switches in dish washer spray arm jam detection Reed Sensors are used in dish washers for spray arm jam detection and door...Continue reading ->

Reed switches in Domestic Coffee Machines

Reed switches in Domestic coffee machine Domestic coffee machines use a solenoid to fill up the water reservoir whenever needed....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 ->
MS-105 Miniature PCB Mountable Reed Sensor
Miniature PCB Mountable reed Sensors: 10W, omnipolar, epoxy encapsulated, 12.7 mm pitch complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: MS-105
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