ENGINEERING DATA SHEET SERIES FD470 RAILWAY RELAY 2 PDT-DB-DM, 3 AMP / 72VDC APPLICATION NOTES: 001 004 007 APPLICABLE SOCKET: SFD400CE40E SF400-1F Polarized, non latching, hermetically sealed relay Contact arrangement 2 PDT-DB-DM Coil supply Direct current PRINCIPLE TECHNICAL CHARACTERISTICS Contact rating 72 Vdc / 3 Amps Weight < 80 grams Dimensions of can without hardware 26mm x 25.7mm x 26mm max Balanced-force design. Tin plated, hermetically sealed metal can. Non-overlapping contact arrangement, see note 5 page 4. CONTACT ELECTRICAL CHARACTERISTICS Nominal contact voltage (Vdc) Contact rating in Amps Level Minimum operating cycles resistive load inductive load (L/R=30ms) 72 V 15 £ U £ 35 V 35 < U £ 90 V 90 < U £ 140 V 3 - - - 1.2 10 mA to 2.50 Amps 10 mA to 1.00 Amps 10 mA to 0.70 Amps High level High level High level High level 1,000,000 cycles 2,000,000 cycles 2,000,000 cycles 2,000,000 cycles Life expectancy for DC loads other than 72Vdc: See application note n°004.

www.leachintl.com North America 6900 Orangethorpe Ave. P.O. Box 5032 Buena Park, CA 90622 USA Tel: (01) 714-736-7599 Fax: (01) 714-670-1145 Europe, SA 2 Rue Goethe 57430 Sarralbe France Tel: (33) 3 87 97 98 97 Fax: (33) 3 87 97 84 04 Asia-Pacific Ltd. 20/F Shing Hing Commercial Bldg. 21-27 Wing Kut Street Central, Hong Kong Tel: (852) 2 191 2886 Fax: (852) 2 389 5803 Data sheets are for initial product selection and comparison. Contact Leach International prior to choosing a component. Date of issue: 4/06 - 42 - Page 1 of 4