MLSM-3 Series - 15.2mm Surface Mount Reed Switch

DataSheet:Littelfuse Reed Switches MLSM-3 datasheet

A miniature, surface mount, normally open switch with a 15.24mm long x 2.54mm diameter (0.600" x 0.100") glass envelope. Capable of switching 200Vdc at 20W with close-differential characteristics. Available sensitivity range of 17-38 AT. High insulation resistance of 1010 ohms minimum and contact resistance of less than 100 milliohms. Available in axial-leaded version (MLRR-3). Ideally suited for reed relays, security, metering, limit sensing, telecom and office equipment applications. Will handle lamp loads up to 2W @ 14V with no suppression circuitry.

Features:

  • Low close/open hysteresis (close differential)
  • Surface mount, normally open switch capable of switching 200Vdc or 1.0A at up to 20 Watts
  • Available sensitivity range of 17-38 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

Applications:

  • Security
  • Limit switching
  • Industrial controls
  • Telecom
  • Office equipment
  • Light inductive loads
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
MLSM-3B-17-232020012500.117 to 2315.2419.56A: SPST-NO
MLSM-3B-17-282020012500.117 to 2815.2419.56A: SPST-NO
MLSM-3B-22-282020012500.122 to 2815.2419.56A: SPST-NO
MLSM-3B-22-332020012500.122 to 3315.2419.56A: SPST-NO
MLSM-3B-27-332020012500.127 to 3315.2419.56A: SPST-NO
MLSM-3B-27-382020012500.127 to 3815.2419.56A: SPST-NO
MLSM-3B-32-382020012500.132 to 3815.2419.56A: SPST-NO
MLSM-3R-17-232020012500.117 to 2315.2419.56A: SPST-NO
MLSM-3R-17-282020012500.117 to 2815.2419.56A: SPST-NO
MLSM-3R-22-282020012500.122 to 2815.2419.56A: SPST-NO
MLSM-3R-22-332020012500.122 to 3315.2419.56A: SPST-NO
MLSM-3R-27-332020012500.127 to 3315.2419.56A: SPST-NO
MLSM-3R-27-382020012500.127 to 3815.2419.56A: SPST-NO
MLSM-3R-32-382020012500.132 to 3815.2419.56A: SPST-NO
Resources
Littelfuse Reed Switches MLSM-3 datasheet mlsm-3
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