MLSM-4 Series - 15.2mm Surface Mount Reed Switch

Series: MLSM-4
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

A sub-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-4). 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:

  • Reed relays
  • Security
  • Limit switching
  • Industrial controls
  • Telecom
  • Office equipment
  • Lamp loads

Access specifications, certifications, check availability and order parts below

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 TypeOperating TemperaturePartner ECAD ModelsStockCompare
MLSM-4B-17-232020012500.117 to 2315.2419.56A:SPST-NO-40° to 125°CMLSM-4B-17-23Check
MLSM-4B-17-282020012500.117 to 2815.2419.56A:SPST-NO-40° to 125°CMLSM-4B-17-28Check
MLSM-4B-22-282020012500.122 to 2815.2419.56A:SPST-NO-40° to 125°CMLSM-4B-22-28Check
MLSM-4B-22-332020012500.122 to 3315.2419.56A:SPST-NO-40° to 125°CMLSM-4B-22-33Check
MLSM-4B-27-332020012500.127 to 3315.2419.56A:SPST-NO-40° to 125°CMLSM-4B-27-33Check
MLSM-4B-27-382020012500.127 to 3815.2419.56A:SPST-NO-40° to 125°CMLSM-4B-27-38Check
MLSM-4B-32-382020012500.132 to 3815.2419.56A:SPST-NO-40° to 125°CMLSM-4B-32-38Check
MLSM-4R-17-232020012500.117 to 2315.2419.56A:SPST-NO-40° to 125°CMLSM-4R-17-23Check
MLSM-4R-17-282020012500.117 to 2815.2419.56A:SPST-NO-40° to 125°CMLSM-4R-17-28Check
MLSM-4R-22-282020012500.122 to 2815.2419.56A:SPST-NO-40° to 125°CMLSM-4R-22-28Check
MLSM-4R-22-332020012500.122 to 3315.2419.56A:SPST-NO-40° to 125°CMLSM-4R-22-33Check
MLSM-4R-27-332020012500.127 to 3315.2419.56A:SPST-NO-40° to 125°CMLSM-4R-27-33Check
MLSM-4R-27-382020012500.127 to 3815.2419.56A:SPST-NO-40° to 125°CMLSM-4R-27-38Check
MLSM-4R-32-382020012500.132 to 3815.2419.56A:SPST-NO-40° to 125°CMLSM-4R-32-38Check
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
MLSM-4B-17-23 MLSM-4B 5484 17-23 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
MLSM-4B-22-28 MLSM-4B 5484 22-28 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
MLSM-4B-27-33 MLSM-4B 5484 27-33 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
MLSM-4B-32-38 MLSM-4B 5484 32-38 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
MLSM-4R-17-23 MLSM-4R 5485 17-23 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
MLSM-4R-22-28 MLSM-4R 5485 22-28 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
MLSM-4R-27-33 MLSM-4R 5485 27-33 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
MLSM-4R-32-38 MLSM-4R 5485 32-38 RoHS No 09/26/2014 PbFree No 09/26/2014 Yes
09/26/2014
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