www.hamlin.com MDRR-DT Features and Benefits Features Benefits Applications • Miniature changeover switch with 14.73mm x 2.54mm (0.580” x 0.100”) glass envelope • Capable of switching 175Vdc at up to 5 Watts • Minimum voltage breakdown 200 Vdc • 109 Ohms insulation resistance • Available sensitivity range 15-30 AT • Hermetically sealed switch contacts are not effected by and have no effect on their external environment • Can be used as changeover or normally closed contact • Low, stable contact resistance • Low space requirement • Zero operating power required for contact closure • Fit and forget durability • • • • • Reed relays Limit switching Telecoms applications Office equipment Automotive applications DIMENSIONS (in) mm Switch Type MDRR-DT Contact Form C Underwriters Laboratories Recognised, File E47258 (see note 1) ELECTRICAL RATINGS Contact Rating (2) Watt - max. 5 Voltage Switching Breakdown Vdc - max. Vdc - min. 175 200 Current Switching Carry A - max. A - max. 0.25 1.5 Resistance Contact, Initial Insulation Ω - max. Ω - min. 0.100 109 Capacitance Contact pF - typ. Temperature Operating Storage (6) °C °C 1.0 -40 to +125 -65 to +125 OPERATING CHARACTERISTICS Operate Time (3) ms - max. 0.7 Release Time (3) ms - max. 1.0 50 Shock 11ms 1⁄2 sine wave G - max. Vibration 50-2000 Hertz G - max. 30 Hz - typ. 11000 Pull-In Range (4) Ampere Turns 15-30 Rating Sensitivity (5) Ampere Turns Resonant Frequency MAGNETIC CHARACTERISTICS 20 Test Coil Notes 1) 2) 3) L4989 For details on electrical specifications, contact Hamlin. Contact rating-Product of the switching voltage and current should never exceed the wattage rating. Contact Hamlin for additional load/life information. Operate (inc. bounce) /Release Time-per EIA/NARM RS421A, diode suppressed coil. Hamlin USA Hamlin UK Hamlin Germany Hamectrol France Tel: Tel: Tel: Tel: 4) Pull in Range-Contact Hamlin for tolerances available within this range. 5) Rating Sensitivity-The value at which contact ratings and operating characteristics are determined. Derating may be required below this value. 6) Storage Temperature-Long time exposure at elevated temperature may degrade solderability of the leads. +1 920 648 3000 • Fax: +1 920 648 3001 • Email: [email protected] +44 (0)1379 649700 • Fax: +44 (0)1379 649702 • Email: [email protected] +49 (0) 6142 923920 • Fax: +49 (0) 6142 923921 • Email: [email protected] +33 (0) 1 6047 3000 • Fax: +33 (0) 1 6015 9136 • Email: [email protected] INFORMATION PROVIDED ON THIS DATA SHEET IS PROVIDED FOR INFORMATION PURPOSES ONLY AND SHOULD NOT BE RELIED UPON AS BEING ACCURATE FOR ANY PARTICULAR PURPOSE. Product performance may be affected by the application to which the product is applied. Upon request, HAMLIN will assist purchasers by providing information specific to any particular application. HAMLIN disclaims any and all liability whatsoever for any purchaser’s reliance upon the information contained on this data sheet without further consultation with authorised representatives of HAMLIN. ISSUE No: 4 DATE: 1/5/3