MISM-3V1 LITTELFUSE | Alldatasheet

Document overview

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  • PDF pages: 3

Technical content

Features

  • Ultra-miniature surface mount normally open switch
  • Available sensitivity range 6-10 AT
  • Capable of switching 170 Vdc or 0.25A up to 10W Benefits
  • Hermetically sealed switch contacts are not effected by and have no effect on their external environment
  • Zero operating power required for contact closure
  • Excellent for switching microcontroller logic level loads
  • Very low space requirement

Applications

  • Position Sensing
  • Level Sensing
  • Meter Equipment
  • Security
  • Office Equipment Dimensions Dimensions in mm Low Power > MISM-3V1 RoHS Note: SPST-NO = Single-pole, single-throw, normally openNote: Land pattern is Littelfuse recommendation only. User is responsible for proper PCB design. Electrical Ratings Contact Rating 1 W/VA - max. 10 Voltage 3 Switching 2 Breakdown 4 Vdc - max. Vac - max. Vdc - min. 170 120 175 Current 3 Switching 2 Carry Adc - max. Aac - max. Adc - max. 0.25 0.18 0.50 Resistance Contact, Initial Insulation Ω - max. Ω - min. 0.150 1012 Capacitance Contact pF - typ. 0.3 Temperature Operating Storage 5 -40 to +125 -65 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. Ø1.80 MAX (.071) 2x0.84±0.10 (.033±004)

7.00 MAX

(.276)

0.02 MIN

(.001) 9.91±0.25 (.390±010) 13.72±0.25 (.540±010) 8.61 (.339) 2x1.12 (044) 2x3.25 (.128)

2.28 MAX

(.090) RECOMMENDED LAND PATTERN

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 6-10 Rating Sensitivity 4 Ampere Turns 10 Test Coil L4991 Drop-Out vs. Pull In Chart Packaging Packaging Option Packaging Specification Quantity Quantity and Packaging Code Taping Width Tape and Reel EIA-RS-481-1 3000 R 32mm Product Characteristics Operating Characteristics Operate Time 1 0.45ms - max. Release Time 1 0.20ms - max. Shock 2 11ms 1∕2 sine wave 150G - max. Vibration 2 50-2000 Hertz 30G - max. Resonant Frequency 18.0kHz - 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 values are the before modification AT of the MITI-3V1. 4. Rating Sensitivity - The value at which contact ratings and operating characteristics are determined. Derating may be required below this value. MISM-3V1R - 6-10 Series AT Range 6-10 AT Packaging R = Tape and Reel B = Bulk Surface Mount Reed Switches Low Power > MISM-3V1 MISM-3V1 7mm Surface Mount Reed Switch Example: 6-10 AT product is MISM-3V1R-6-10 Note: This AT value is the before-modification value of the bare reed switch. Note: Chart represents the range of Drop-Out, min to max for a given Pull-In value. 2.5 7.5 12.5 02 .5 57 .5 10 12.5 15 Drop-Out (AT, L4991 Coil) Pull-In (AT, L4991 Coil) Max. Min.

littelfuse.com © 2015 Littelfuse Specifications are subject to change without notice. TAPE DIMENSIONS mm (inch) REEL DIMENSIONS mm (inch) MISM-3V1 7mm Surface Mount Reed Switch Surface Mount Reed Switches Low Power > MISM-3V1