Axial Lead Reed Switches Ultra-Miniature > MITI-7 MITI-7 7mm Ultra-Miniature Reed Switch RoHS Description The MITI-7 ultra-miniature reed switch is a normally open switch with a 7mm x 1.8mm (0.276 x 0.071) glass envelope, which is capable of switching 170Vdc at 10W. It has a sensitivity range of 6-20 AT. It has a high insulation resistance of 12 10 ohms minimum and low contact resistance of less than 150 milliohms. The MITI-7 is also available in a surface mount version, that is, MISM-7. Features Ultra-miniature, normally Available sensitivity range 6-20 AT open switch Capable of switching 170Vdc or 0.25A at up to 10W Benefits Hermetically sealed switch contacts Zero operating power required for are not affected by and have no contact closure Agency Approvals effect on their external environment Excellent for switching micro- Very low space requirement controller logic level loads Agency Agency File Number Ampere-Turns Range E47258 6-20 AT Applications E471070 Position Sensing Industrial Controls DEMKO 14 ATEX 1393U 6-20 AT Security Office Equipment Meter Equipment Telecoms Note: Contact Littelfuse for specific agency approval ratings. Dimensions Switch Type Dimensions in mm CL OF OVERLAP Contact Form A (SPST-NO) 20.19 REF. (.795) 1.80 MAX. Body: Glass 0.38 DIA. REF. Materials (.071) Leads: Tin Plated Nickel Iron (.015) Note: SPST-NO = Single-pole, single-throw, normally open 15.20 MIN. (.598) 7.00 MAX. (.276) 40.38 NOM. (1.590) Electrical Ratings 1 Contact Rating Watt - max. 10 2 Switching Vdc - max. 170 3 Voltage Vac - max. 120 4 Breakdown Vdc - min. 175 2 Switching Adc - max. 0.25 3 Current Aac - max. 0.18 Carry Adc - max. 0.50 Contact, Initial - max. 0.15 Resistance 12 Insulation - 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. 2018 Littelfuse Revised: 12/26/18 littelfuse.com Specifications are subject to change without notice.Axial Lead Reed Switches Ultra-Miniature > MITI-7 MITI-7 7mm Ultra-Miniature Reed Switch Product Characteristics Operating Characteristics 1 Operate Time 0.45ms - max. 1 Release Time 0.2ms - max. 2 Shock 11ms 12 sine wave 150G - max. 2 Vibration 50-2000 Hertz 30G - max. Resonant Frequency 14kHz - typ. Magnetic Characteristics 3 Pull-In Range Ampere Turns 6-20 4 Rating Sensitivity Ampere Turns 12 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 22.5 MITI-7-6-10 Max. 20 Min. 17.5 15 12.5 Series 10 AT Range 7.5 Example: 6-10 AT 6-10 AT product is 5 10-15 AT MITI-7-6-10 15-20 AT 2.5 0 02.5 57.5 10 12.5 15 17.5 20 22.5 Pull-In (AT, L4991 Coil) Note: The chart represents the range of Drop-Out, minimum to maximum for a given Pull-In value. Packaging Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width Bulk Bulk 2000 N/A N/A Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics 2018 Littelfuse Revised: 12/26/18 littelfuse.com Specifications are subject to change without notice. Drop-Out (AT, L4991 Coil)