MDRR-DT-25-30-U Littelfuse

www.hamlin.com MDRR-DT Features and Benefits Features Benefits Applications Miniature changeover switch Hermetically sealed switch contacts Reed relays with 14.73mm x 2.54mm (0.580 are not effected by and have no effect Limit switching x 0.100) glass envelope on their external environment Telecoms applications Capable of switching 175Vdc at Can be used as changeover or Office equipment up to 5 Watts normally closed contact Automotive applications Minimum voltage breakdown 200 Low, stable contact resistance Vdc Low space requirement 9 10 Ohms insulation resistance Zero operating power required for Available sensitivity range 15-30 AT contact closure Fit and forget durability 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 Vdc - max. 175 Breakdown Vdc - min. 200 Current Switching A - max. 0.25 Carry A - max. 1.5 Resistance Contact, Initial - max. 0.100 9 Insulation - min. 10 Capacitance Contact pF - typ. 1.0 Temperature Operating C -40 to +125 Storage (6) C -65 to +125 OPERATING CHARACTERISTICS Operate Time (3) ms - max. 0.7 Release Time (3) ms - max. 1.0 1 Shock 11ms 2 sine wave G - max. 50 Vibration 50-2000 Hertz G - max. 30 Resonant Frequency Hz - typ. 11000 MAGNETIC CHARACTERISTICS Pull-In Range (4) Ampere Turns 15-30 Rating Sensitivity (5) Ampere Turns 20 Test Coil L4989 Notes 1) For details on electrical specifications, contact Hamlin. 4) Pull in Range-Contact Hamlin for tolerances available within this range. 2) Contact rating-Product of the switching voltage and current should never exceed the 5) Rating Sensitivity-The value at which contact ratings and operating characteristics are wattage rating. determined. Derating may be required below this value. Contact Hamlin for additional load/life information. 6) Storage Temperature-Long time exposure at elevated temperature may degrade 3) Operate (inc. bounce) /Release Time-per EIA/NARM RS421A, diode suppressed coil. solderability of the leads. Hamlin USA Tel: +1 920 648 3000 Fax: +1 920 648 3001 Email: sales.us hamlin.com Hamlin UK Tel: +44 (0)1379 649700 Fax: +44 (0)1379 649702 Email: sales.uk hamlin.com Hamlin Germany Tel: +49 (0) 6142 923920 Fax: +49 (0) 6142 923921 Email: sales.de hamlin.com Hamectrol France Tel: +33 (0) 1 6047 3000 Fax: +33 (0) 1 6015 9136 Email: sales.fr hamlin.com 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 purchasers reliance upon the information contained on this data sheet without further consultation with authorised representatives of HAMLIN. ISSUE No: 4 DATE: 1/5/3