Meder Electronic MK19 Series Reed Sensors in Tall Package for PCB Mounting DESCRIPTION MK19 sensors are magnetically operated Reed proximity switches. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface. Introduction or removal of the magnetic field determines the closing and opening of the Reed Switch. APPLICATIONS • Telecommunications Receiver hook switch • Air conditioning and clean room systems Filter condition detection • Pneumatic and hydraulic cylinders Position detection • Machine industry FEATURES • Tall stand off package for PCB mounting • High power switches available • Three operate sensitivities available • Optional cover available DIMENSIONS All dimensions in mm [inches] PCB LAYOUT MAGNETIC SENSITIVITY SENSITIVITY CLASS PULL IN AT RANGE B 10 - 15 ORDER INFORMATION Part Number Example MK19 - SERIES MAGNETIC SENSITIVITY MK19 - X OPTIONS B, C, D C C is the magnetic sensitivity C 15 - 20 D 20 - 25 www.willow.co.uk Tel. +44 (0) 1342 835234 Fax. +44 (0) 1342 834306 MK19 Series Meder Electronic Reed Sensors in Tall Package for PCB Mounting CONTACT DATA All data at 20 0 C Contact Ratings Contact Form --> Conditions Form A Min. Typ. Max. Units Contact Rating Any DC combination of V & A not to exceed their individual max.'s 10 W Switching Voltage DC or peak AC 200 V Switching Current DC or peak AC 0.5 A Carry Current DC or peak AC 1.25 A Static Contact Resistance w/ 0.5V & 10mA 150 mΩ Dynamic Contact Resistance Measured w/ 0.5V & 50mA 1.5 ms after closure 200 mΩ Insulation Resistance across Contacts 100 Volts applied 109 Ω Breakdown Voltage across Contacts Voltage applied for 60 sec. min. 225 VDC Operate Time, incl. Bounce Measured w/ 50% overdrive 0.7 ms Release Time Measured w/ no coil suppression 0.1 ms Capacitance @ 10kHz across contact 0.2 pF Contact Operation * Must Operate Condition Steady state field 10 25 AT Must Release Condition Steady state field 4 22 AT Environmental Data Shock Resistance 1/2 sine wave duration 11ms 50 g Vibration Resistance From 10 - 2000 Hz 20 g Ambient Temperature 10 0C/ minute max. allowable -20 85 0 Storage Temperature 10 0C/ minute max. allowable -35 85 0 260 0 Soldering Temperature 5 sec. dwell Please note: The indicated electrical data are maximum values and can vary downwards when using a more sensitive switch. * These ranges refer to the uncut / unmodified Reed Switches described in our Reed Switch section. Consult factory if more detail is required. www.willow.co.uk Tel. +44 (0) 1342 835234 Fax. +44 (0) 1342 834306 C C C