the information in this document is subject to change without notice. date published august 2002 m printed in japan ? nec tokin corporation 2002 data sheet automotive relays ep2/ep1 series description the nec tokin ep2 / ep1 series are pc-board mount type automotive relays suitable for various motor controls and other applications that require a high level of quality and performance. ep2 series is a twin-relay and divided into two types for different usage. one is an h-bridge type designed for forward and reverse control of the motors, and the other, a separate type containing two separated relays in one package. ep1 series is a 1 form c relay equivalent to ep2 series in performance. features for motor reversible control and solenoid control approx. 50% less relay space than conventional relay high performance and productivity by unique structure flux tight housing applications power window antenna lifter auto-seat positioning electrical door lock passive seat belt control keyless/remote entry system sliding roof control ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
ep2 / ep1 series 2 schematic (bottom view) ep2 series ep1 series dimensions mm (inch) ep2 series ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
ep2/ep1 series 3 ep1 series pcb pad layout mm (inch) (bottom view) ep2 series ep1 series ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
ep2 / ep1 series 4 specifications at 25 c (77 f ) items ep2 ep1 contact form 1 form c 2 (h bridge type and separate type) 1 form c contact material silver oxide comp lex alloy(special type available) contact resistance 50 m ? max. (measured at 7 a) initial contact switching voltage 16 vdc max. contact switching current 25 a max. (at 16 vdc) contact carrying current 20 a max. (1 hour max.), 25 a max. (2 minutes max.) at 12 vdc 25 a max. (1 hour max.), 30 a max. (2 minutes max.) at 12 vdc operate time approx. 5 ms (at 12 vdc) initial release time approx. 2 ms (at 12 vdc) initial. without diode normal operate power 0.48 w / 0.64 w (at 12 vdc) insulation resistance 100 m ? min. (at 500 vdc) initial breakdown voltage 500 vdc min. (for 1 minute) initial shock resistance 98 m / s 2 [10 g] min. (misoperating), 980 m / s 2 [100 g] min. (destructive failure) vibration resistance 10 to 300 hz, 43 m/s 2 [ 4.4 g] min. (misoperating) 10 to 500 hz, 43 m/s 2 , [ 4.4 g] 200 hours (destructive failure) ambient temperature ?40 c to +85 c (?40 f to +185 f) coil temperature 50 c / w (122 f/w)(contact carrying current 0 a) mechanical 1 10 6 operations life expectancy electrical 100 x 10 3 operations (at 14 vdc. motor load 20 a / 3 a) weight approx. 15 gn (0.53oz) approx. 8 gr (0.28 oz) coil rating ep2 series at 25 c (77 f ) part number h bridge type separate type nominal voltage (vdc) coil resistance ( ? 10%) nominal current (ma) must operate voltage (vdc max.) must release voltage (vdc min.) nominal operate power (w) ep2-3l1 ep2-3l2 ep2-3l3 ep2-4l3 ep2-4l4 ep2-4l5 ep2-3l1t ep2-3l2t ep2-3l3t ep2-4l3t ep2-4l4t ep2-4l5t 12 12 12 12 12 12 225 225 225 300 300 300 53.5 53.5 53.5 40.0 40.0 40.0 6.5 7.0 7.5 7.5 8.0 8.5 0.9 0.9 0.9 0.9 0.9 0.9 0.64 0.64 0.64 0.48 0.48 0.48 * high carrying current type available ep1 series part number regular type high carrying current type nominal voltage (vdc) coil resistance ( ? 10%) nominal current (ma) must operate voltage (vdc max.) must release voltage (vdc min.) nominal operate power (w) ep1-3l1 ep1-3l2 ep1-3l3 ep1-4l3 ep1-4l4 EP1-4L5 ep1-b3g1 ep1-b3g2 ep1-b3g3 ep1-b4g3 ep1-b4g4 ep1-b4g5 12 12 12 12 12 12 225 225 225 300 300 300 53.3 53.3 53.3 40.0 40.0 40.0 6.5 7.0 7.5 7.5 8.0 8.5 0.9 0.9 0.9 0.9 0.9 0.9 0.64 0.64 0.64 0.48 0.48 0.48 ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
ep2/ep1 series 5 numbering system typical application (h bridge type) motor tr1 tr2 stop off off forward on off reverse off on it is necessary to take more than 100 ms intervals for on / off timing between driving tr1 and tr2. if the interval is less than 100 ms, an excessive current happen to flow to the relay contacts. ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
ep2 / ep1 series 6 technical data coil temperature rise (ep2-3l1) operate time (ep2-3l1) release time (ep2-3l1) ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
ep2/ep1 series 7 ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
ep2 / ep1 series printed on recycled paper no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec/tokin corporation. nec/tokin corporation assumes no responsibility for any errors which may appear in this document. nec/tokin corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. no license, either expr ess, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec/tokin corporation or others. while nec/tokin corporation has been making continuous effort to enhance the reliability of its electronic components, the possibility of defects cannot be eliminated entirely. to minimize risks of damage or injury to persons or property arising from a defect in an nec/tokin electronic com ponent, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-conta inment, and anti-failure features. nec/tokin devices are classified into the following three quality grades: "standard", "special", and "specific ". the specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. the recommended applications of a device depend on its quality grade, as indicated below. cu stomers must check the quality grade of each device before using it in a pa rticular application. standard: computers, office equipment, communicati ons equipment, test and measurement equipment, audio and visual equipment, home electronic appl iances, machine tools, personal electronic equipment and industrial robots special: transportation equipment (automobiles, trains, ships, etc.), traffic cont rol systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) specific: aircrafts, aerospace equipment, submersibl e repeaters, nuclear reac tor control systems, life support systems or medical equipm ent for life support, etc. the quality grade of nec/tokin devices is "standard" unle ss otherwise specified in nec/tokin's data sheets or data books. if customers intend to use nec/tokin devices for applications other than those specified for standard quality grade, they should contact an ne c/tokin sales representative in advance. (note) (1) "nec/tokin" as used in this statement mean s nec/tokin corporation and also includes its majorityowned subsidiaries. (2) "nec/tokin electronic component products" me ans any electronic component product developed or manufactured by or for nec/tokin (as defined above). de0202 ? " m m t q f d j g j d b u j p o t j o u i j t d b u b m p h b o e q s p e v d u j p o t u b u v t p g q s p e v d u t b s f t v c k f d u u p d i b o h f x j u i p v u o p u j d f 1 s j p s u p u i f q v s d i b t f
q m f b t f d p o u b d u / & $ 5 p l j o g p s v q e b u f e q s p e v d u e b u b ? 1 m f b t f s f r v f t u g p s b t q f d j g j d b u j p o t i f f u g p s e f u b j m f e q s p e v d u e b u b q s j p s u p u i f q v s d i b t f ? # f g p s f v t j o h u i f q s p e v d u j o u i j t d b u b m p h
q m f b t f s f b e 1 s f d b v u j p o t b o e p u i f s t b g f u z q s f d b v u j p o t m j t u f e j o u i f q s j o u f e w f s t j p o d b u b m p h 1 & . % % 7 0 - &
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