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StandexMeder Electronics GmbH
MK21 SERIES REED SENSOR

MK21 SERIES REED SENSOR

Product catalog summary

MK21 Series Reed Sensors Overview
The MK21 Series Reed Sensors are designed for applications such as door and window contacts, water level detection with magnetic floats, and position sensing. They are suitable for markets including automotive, appliance, industrial, and security sectors.

Key Features

Screw mount design
Withstands temperatures greater than 150°C (M-Version)
Available with various cable terminations and lengths

Technical Specifications

Rated Power: Up to 100 W depending on the model
Switching Voltage: Up to 1000 V
Switching Current: Up to 1.0 A
Carry Current: Up to 2.5 A
Contact Resistance: Maximum 150 mOhm
Breakdown Voltage: Minimum 0.2 kVDC
Operating and Release Times: Maximum 1.1 ms and 1.5 ms respectively
Insulation Resistance: Typically 10^9 to 10^10 Ohm
Capacitance: Typically 0.3 to 1.5 pF

Housing and Environmental Specifications

Housing Material: Epoxy Resin
Case Color: Black
Cable Material: Radox
Shock Resistance: Maximum 50 g
Vibration Resistance: Maximum 20 g
Operating Temperature: -40 to 150 °C
Storage Temperature: -40 to 150 °C

Handling and Assembly Instructions

Maximum screw torque is 1Nm
Cable bending-radius should be diameter x 15
Minimum bending distance to housing is 5mm
Avoid using magnetically inductive screws
Series resistor recommended for cable lengths over 5m

Life Test Data
The life expectancy of Reed Switches decreases with increased load. Typical number of operations varies based on load conditions, with higher loads reducing the number of operations.

Additional Notes
All specifications refer to the standard product range and are subject to change. For the most current specifications and product details, contact the nearest sales office.

Catalog excerpts

PARTNER | SOLVE | DELIVER' M" Standex W . Electronics Series Datasheet MK21 Series Reed Sensors > Features: Screw Mount, Withstands Temp. >150°C (M-Version), Cable Termination & Lengths available > Applications: Door & Window Contacts, With Magnetic Floats for Water Level Detection, Position Sensing > Markets: Automotive, Appliance, Industrial, Security & Others Part Description: MK21/X-0X00X-000X Thread Customer Options

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PARTNER | SOLVE | DELIVER' M" Standex W . Electronics Series Datasheet MK21 Series Reed Sensors Housing and Lead Specifications

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Series Datasheet MK21 Series Reed Sensors Life Test Data Life Test Data *Load increase reduces life expectancy of Reed Switches *Load increase reduces life expectancy of Reed Switches Typical Number of Operations Typical Number of Operations Life Test Data *Load increase reduces life expectancy of Reed Switches Load (DC) Typical Number of Operations Please note: All technical specifications on this series datasheet refer to the standard product range. Modifications in the sense of technical progress are reserved. For general information only. For more specific information, please consult the...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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