MARR-5 LITTELFUSE | Alldatasheet

Document overview

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Technical content

Features

  • Miniature normally open switch
  • Capable of switching 1000Vdc at 1mA or 0.5A up to 10W
  • Minimum voltage breakdown

2000 Vdc

  • Available sensitivity range 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 (particularly suitable for high voltage breakdown applications)
  • Security
  • Limit switching
  • Telecoms line switching
  • Office equipment Dimensions Dimensions in mm (inch) High Power > MARR-5 RoHS Note: SPST-NO = Single-pole, single-throw, normally open CL OF OVERLAP (2.235)N OM. (.775) MAX. 56.77 19.6917.39 (.685)M IN. (1.117)R EF. 28.37 (.105)M AX. (.022)D IA.R EF. 0.55 2.66 Electrical Ratings Contact Rating 1 W/VA - max. 10 Voltage 3 Switching 2 Breakdown 4 Vdc - max. Vdc - min. 1000 2000 Current 3 Switching 2 Carry Adc - max. Adc - max. 0.50 1.30 Resistance Contact, Initial Insulation Ω - max. Ω - min. 0.100 1012 Capacitance Contact pF - typ. 0.2 Temperature Operating Storage 5 -75 to +125 -75 to +125 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 17-38 Rating Sensitivity 4 Ampere Turns 35 Test Coil L4989 Drop-Out vs. Pull-In Chart Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width Bulk Bulk 1000 N/A N/A Product Characteristics Operating Characteristics Operate Time 1 0.75ms - max. Release Time 1 0.30ms - max. Shock 2 11ms 1∕2 sine wave 100G - max. Vibration 2 50-2000 Hertz 30G - max. Resonant Frequency 3.2kHz - 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. 4. Rating Sensitivity - The value at which contact ratings and operating characteristics are determined. Derating may be required below this value. 5. Custom modifications of forming and/or cutting of reed switches are available. Please contact Littelfuse. Surface Mount Reed Switches High Power > MASM-14 MARR-5 14mm Reed Switch MARR-5-22-28 Series AT Range 17-23 AT 17-28 AT 22-28 AT 22-33 AT 27-33 AT 27-38 AT 32-38 AT Example: 22-28 AT product is MARR-5-22-28 Note: Chart represents the range of Drop Out, min to max for a given Pull-In value. Additional Information Datasheet SamplesResources Pull-In (AT, L4989 Coil) Drop-Out (AT, L4989 Coil) 10 15 20 25 30 35 40 Max. Min. Note: These AT values are the before-modification values of the bare reed switch.