MASM-14 LITTELFUSE | Alldatasheet

Document overview

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Technical content

Features

  • Surface mount normally open switch
  • Capable of switching 200Vdc or 0.5A at up to 10W
  • Low close/open hysteresis (close differential) 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

  • Position Sensing
  • Level Sensing
  • Security
  • Industrial Controls
  • Office Equipment
  • Home Appliances Dimensions Dimensions in mm (inch) Low Power > MASM-14 RoHS Note: SPST-NO = Single-pole, single-throw, normally open Note: Land pattern is Littelfuse recommendation only. User is responsible for proper PCB design. Ø2.28 MAX (.090) 2x1.14±0.10 (.045±.004) 17.52±0.25 (.690±.010) 19.30±0.25 (.760±.010) 2x0.00 MIN 2x3.05 (.120) 2x1.65 (.065) (.000) 14.60 (.575)

2.84 MAX

(.112)

14.00 MAX

(.551) RECOMMENDED LAND PATTERN Notes: 1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information. 2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and AN107 for details. 3. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load. 4. Breakdown Voltage - per MIL-STD-202, Method 301. 5. Storage Temperature - Long time exposure at elevated temperature may degrade solderability of the leads.

littelfuse.com © 2015 Littelfuse Specifications are subject to change without notice. littelfuse.com © 2015 Littelfuse Specifications are subject to change without notice. Magnetic Characteristics Pull-In Range 3 Ampere Turns 10-15, 15-20, 20-25, 25-30 Rating Sensitivity 4 Ampere Turns 20 Test Coil L4989 Drop-Out vs. Pull-In Chart Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width Tape and Reel EIA-RS-481-1 3000 R 32mm Product Characteristics Operating Characteristics Operate Time 1 0.6ms - max. Release Time 1 0.2ms - max. Shock 2 11ms 1∕2 sine wave 100G - max. Vibration 2 50-2000 Hertz 30G - max. Resonant Frequency 5.3kHz typ Part Numbering System Notes: 1. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A,diode suppressed coil (Coil II). 2. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202. 3. Pull-In Range - Contact Littelfuse for narrower AT ranges available. These AT ranges are the before modification AT of the MACD-14. 4. Rating Sensitivity - The value at which contact ratings and operating characteristics are determined. Derating may be required below this value. MASM-14 R - 10-15 Series AT Range 10-15 AT 15-20 AT 20-25 AT 25-30 AT Packaging R = Tape and Reel Surface Mount Reed Switches Low Power > MASM-14 MASM-14 14mm Close-Differential Reed Switch Note: Chart represents the range of Drop Out, min to max for a given Pull-In value of the MACD-14 prior to modification into the MASM-14. Additional Information Datasheet SamplesResources Pull-In (AT, L4989 Coil) Drop-Out (AT, L4989 Coil) 10 15 20 25 30 35 Max. Min.

littelfuse.com © 2015 Littelfuse Specifications are subject to change without notice. TAPE DIMENSIONS mm (inch) REEL DIMENSIONS mm (inch) MASM-14 14mm Close-Differential Reed Switch Surface Mount Reed Switches Low Power > MASM-14