MDSR-7 Series - 12.7mm Reed Switch

DataSheet:Littelfuse Reed Switches MDSR-7 datasheet

A sub-miniature, normally open switch with a 12.70mm long x 1.80mm diameter (0.500" x 0.071") glass envelope. Capable of switching 200Vdc at 10W. Available sensitivity range of 10-25 AT. High insulation resistance of 1012 ohms minimum and low contact resistance of less than 120 milliohms. Ideally suited for reed relay applications, security, metering, limit sensing and telephone off-hook applications.

Features:

  • Normally open switch capable of switching 200Vdc or 0.5A at up to 10 Watts
  • Available sensitivity range of 10-25 AT

Benefits:

  • Hermetically sealed switch contacts are not affected by and have no effect on their external environment
  • Zero operating power required for contact closure
  • Excellent for switching micro-controller logic level loads

Applications:

  • Reed relays
  • Security
  • Limit switching
  • Industrial controls
  • Telecom
Ordering Information
Catalog #Switching Power (W)Switching Voltage (V DC)Switching Current (A DC)Breakdown Voltage (V DC)Max Contact Resistance (Ω)Magnetic Sensitivity (AT)Body Length (mm)Overall Length (mm)Switch Type
MDSR-7-10-15102000.52500.110 to 1512.740.38A:SPST-NO
MDSR-7-10-25102000.52500.110 to 2512.740.38A:SPST-NO
MDSR-7-15-20102000.52500.115 to 2012.740.38A:SPST-NO
MDSR-7-20-25102000.52500.120 to 2512.740.38A:SPST-NO
Resources
Littelfuse Reed Switches MDSR-7 datasheet mdsr-7
Flow Sensing in Tankless Water Heaters Application Note h-625
Magnetic Sensing in Washing Machines Application Note h-625
Rice Cooker Lid Lock Application Note h-625
Sensors Products Catalog h-625