MK33 STANDEX | Alldatasheet
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standexelectronics.comSeries Datasheet Version 01 May 2024 Page S. Knoblauch1 MK33 Series Reed Sensors Features: compact profile and surface mount, long life expectancy, improved stability for assembly process*, packed in tape and reel for easy pick and place Applications: air conditioning, metering, ladders for fluid level sensors, window and door sensors for security systems, smoke detectors, water flow gauge & others Markets: Automotive, Telecommunication, Safety & Security, Test & Measurement, Household, Medical & Others Part Description: MK 33 - 00 - X Switch Model Magnetic Sensitivity Lead Design 87, 66 B, C, D, E, F, G compact Customer Options Switch Model Unit Contact Data 87 (10 mm Glass) 66 (14 mm Glass) Rated Power (max.) Any DC combination of V&A not to exceed their individual max.’s 10 10 W Switching Voltage (max.) DC or peak AC 200 200 V Switching Current (max.) DC or peak AC 0.4 0.5 A Carry Current (max.) DC or peak AC 0.5 1.0 A Contact Resistance (max.) @ 0.5V & 50mA 150 150 mOhm Breakdown Voltage (min.) According to EN60255-5 250 250 VDC Operating Time (max.) Incl. Bounce; Measured with w/ Nominal Voltage 0.7 0.7 Ms Release Time (max.) Measured with no Coil Excitation 0.05 0.05 Ms Insulation Resistance (typ.) Rh<45%, 100V Test Voltage 1010 1010 Ohm Capacitance (typ.) @ 10kHz across open Switch 0.2 0.3 pF * In comparison with our MK23 series
standexelectronics.comSeries Datasheet Version 01 May 2024 Page S. Knoblauch2 MK33 Series Reed Sensors MK33 Reed SensorDimensions (mm) and Lead Specifications Overall Length 13 - 17.95 Lead Dia. 0.90 - 0.95 Glass Length 10 - 14 Lead Design compact Glass Dia. 2 - 2.2 Layout Top View 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 product datasheet, available upon request. This series datasheet could contain technical inaccuracies or typographical errors. Changes are periodically made to the information herein. These change will be incorporated in future revisions. For deviating values, most current specifications and products please contact your nearest sales office. Glossary Magnetic Sensitivity Sensitivity A B C D E F G AT 05-10 10-15 15-20 20-25 25-30 30-35 35-40 Environmental Data Unit Shock Resistance (max.) 1/2 sine, duration 11ms, in 3 axis 50 g Vibration Resistance (max.) 20 g Operating Temperature -40 to 130 °C Storage Temperature -55 to 130 °C Soldering Temperature (max.) 5 sec. max. 260 °C Handling & Assembly Instructions Use proper lead clamping or heat sinking techniques to prevent mechanical and/or heat stress during, soldering, and welding Mechanical shock as the result of dropping the reed sensor typically from greater than 12” may change its magnetic sensitivity and/or destroy the sensor Reflow Soldering Conditions according to JEDEC norm J-STD- 020D.1 Glossary Contact Form Form A NO = Normally Open Contacts SPST = Single Pole Single Throw Form B NC = Normally Closed Contacts SPST = Single Pole Single Throw Form C Changeover SPDT = Single Pole Double Throw Life Test Data *Load increase reduces life expectancy of Reed Switches Typical Number of Operations KSK-1A87 100V/10mA 20V/500mA 10V/100mA 10V/4mA <5V/10mA Life Test Data *Load increase reduces life expectancy of Reed Switches Load Typical Number of Operations KSK-1A66 100V/10mA 20V/500mA 10V/100mA 10V/4mA <5V/10mA