Axial Lead Reed Switches Low Power > MITI-3V1 MITI-3V1 7mm Ultra-Miniature Reed Switch RoHS Description The MITI-3V1 ultra-miniature reed switch is a normally open switch with a 7.00mm long x 1.80mm diameter (0.276” x 0.071”) glass envelope, which is capable of switching 170Vdc at 10W. It has a high insulation resistance of 10¹² ohms minimum and low contact resistance of less than 150 milliohms. The MITI-3V1 is also available in a surface mount version, that is, MISM-3V1. Features • Ultra-miniature, normally • Available sensitivity range 6-10 AT open switch • Capable of switching 170Vdc or 0.25A at up to 10W Benefits Agency Approvals • Hermetically sealed switch contacts • Zero operating power required for are not affected by and have no contact closure effect on their external environment • Excellent for switching micro- Agency Agency File Number Ampere-Turns Range • Very low space requirement controller logic level loads E47258 6-10 AT E471070 Applications DEMKO 14 ATEX 1393U 6-10 AT • Reed relays • Metering • Security • Mobile phones Dimensions Dimensions in mm Switch Type CL OF OVERLAP 23.00 (.906) REF. Contact Form A (SPST-NO) 1.80 0.38 (.071) MAX. (.015) DIA. REF. Body: Glass Materials Leads: Tin Plated Nickel Iron Note: SPST-NO = Single-pole, single-throw, normally open 7.00 (.276) MAX. 46.00 (1.811) NOM. Electrical Ratings 1 Contact Rating Watt - max. 10 2 Switching Vdc - max. 170 3 Voltage 4 Breakdown Vdc - min. 175 2 Switching A - max. 0.25 3 Current Carry A - max. 0.5 Contact, Initial Ω - max. 0.15 Resistance 12 Insulation Ω - min. 10 Capacitance Contact pF - typ. 0.3 Operating °C -40 to +125 Temperature 5 Storage °C -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. © 2015 Littelfuse littelfuse.com Specifications are subject to change without notice. Axial Lead Reed Switches Low Power > MITI-3V1 MITI-3V1 7mm Ultra-Miniature Reed Switch Product Characteristics Operating Characteristics 1 Operate Time 0.45ms - max. 1 Release Time 0.2ms - max. 2 Shock 11ms 1∕2 sine wave 150G - max. 2 Vibration 50-2000 Hertz 30G - max. Resonant Frequency 18.0kHz - typ. Magnetic Characteristics 3 Pull-In Range Ampere Turns 6-10 4 Rating Sensitivity Ampere Turns 10 Test Coil L4991 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 15 MITI-3V1-6-10 12.5 10 Max. 7.5 Min. 5 Series 2.5 AT Range Example: 6-10 AT 0 02.5 57.5 10 12.5 15 6-10 AT product is Pull-In (AT, L4991 Coil) MITI-3V1-6-10 Note: The chart represents the range of Drop-Out, minimum to maximum for a given Pull-In value. Additional Information Datasheet Samples Resources Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width Bulk Bulk 2000 N/A N/A © 2015 Littelfuse © 2015 Littelfuse littelfuse.com littelfuse.com Specifications are subject to change without notice. Specifications are subject to change without notice. Drop-Out (AT, L4991 Coil)