Axial Lead Reed Switches High Power > MARR-5 MARR-5 14mm Reed Switch RoHS 07/17/2017 N/A MVSR-20 Description The MARR-5 reed switch is a miniature, normally open switch with a 19.69mm long x 2.66mm diameter (0.775 x 0.105) glass envelope, capable of high voltage switching of up to 1kVdc at 1mA. It has high insulation resistance of 10 ohms minimum and contact resistance less than 100 milli-ohms. Features Miniature normally open switch Minimum voltage breakdown Capable of switching 1000Vdc at 2000 Vdc 1mA or 0.5A up to 10W Available sensitivity range 17-38 AT Benefits Agency Approvals Zero operating power required Hermetically sealed switch for contact closure contacts are not affected by and Agency Agency File Number Ampere-Turns Range have no effect on their external environment E47258 17-38 AT E471070 Applications DEMKO 14 ATEX 1393U 17-38 AT Limit switching Reed relays (particularly suitable Telecoms line switching for high voltage breakdown Note: Contact Littelfuse for specific agency approval ratings. Office equipment applications) Security Dimensions Switch Type Dimensions in mm (inch) CLOFOVERLAP Contact Form A (SPST-NO) (1.117)REF. 28.37 (.105)MAX. Body: Glass (.022)DIA.REF. Materials 2.66 Leads: Tin-plated Ni-Fe wire 0.55 Note: SPST-NO = Single-pole, single-throw, normally open (.685)MIN. (.775)MAX. 17.39 19.69 (2.235)NOM. 56.77 Electrical Ratings 1 Contact Rating W/VA - max. 10 2 Switching Vdc - max. 1000 3 Voltage 4 Breakdown Vdc - min. 2000 2 Switching Adc - max. 0.50 3 Current Carry Adc - max. 1.30 Contact, Initial - max. 0.100 Resistance 12 Insulation - min. 10 Capacitance Contact pF - typ. 0.2 Operating C -75 to +125 Temperature 5 Storage C -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. 2018 Littelfuse Revised: 01/11/18 littelfuse.com Specifications are subject to change without notice.Surface Mount Reed Switches High Power > MARR-5 MARR-5 14mm Reed Switch 07/17/2017 N/A MVSR-20 Product Characteristics Operating Characteristics 1 Operate Time 0.75ms - max. 1 Release Time 0.30ms - max. 2 Shock 11ms 12 sine wave 100G - max. 2 Vibration 50-2000 Hertz 30G - max. Resonant Frequency 3.2kHz - typ. Magnetic Characteristics 3 Pull-In Range Ampere Turns 17-38 4 Rating Sensitivity Ampere Turns 35 Test Coil L4989 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. Drop-Out vs. Pull-In Chart Part Numbering System 30 Max. MARR-5-22-28 25 20 Series Min. AT Range 15 17-23 AT Example: 17-28 AT 22-28 AT product is 10 22-28 AT MARR-5-22-28 22-33 AT 27-33 AT 5 27-38 AT 32-38 AT Note: These AT values are the before-modification values of the bare reed switch. 0 0 5 10 15 20 25 30 35 40 Pull-In (AT, L4989 Coil) Note: Chart represents the range of Drop Out, min to max for a given Pull-In value. Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width Bulk Bulk 1000 N/A N/A 2018 Littelfuse Revised: 01/11/18 littelfuse.com Specifications are subject to change without notice. Drop-Out (AT, L4989 Coil)