description the nec tokin ep2f / ep1f 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. the operate temperature range for ep2f / ep1f series is ?0?c through +125?c. by this high heat resistivity, the contact carrying current of ep2f / ep1f series at 25?c increases 1.3 or 1.4 times compared with that of ep2 / ep1 series. features ? operating ambient temperature up to +125?c (ep2 / ep1 : +85?c) ? suitable for motor and solenoid reversible control ? high performance and productivity by unique structure ? flux tight housing applications ? power window control ? power sunroof ? wiper system ep2f series ep1f series data sheet ep2f/ep1f series automotive relays high heat resistivity document no. 0692emdd03vol02e date published december 2005 n0hp02 printed in japan ? nec tokin corporation 2005
2 ep2f / ep1f series schematic (bottom view) ep2f series ep1f series dimensions mm (inch) ep2f series 2 1 6 4 5 7 8 2 1 6 4 5 7 8 2 1 4 5 3 3 3 9 10 [h bridge type] [unit a] [unit b] [separate type] [unit a] [unit b] japan 16.2 0.5 8.1 ? 4 - 0.6( 0.22) 23.8 0.5 (11.9) (11.9) 10.1 8.1 ? 6.4 5.45 3.1 (0.12) 2.2 (0.31) 3.5 3.5 8.0 10.1 2-0.5 1.1(0.02 0.04) 2.2 5.45 16.0 0.5 0.5(0.02) 3.5 vent hole date code part number japan ep 2f-b3 l2t 0g 3 24 16.2 0.5 8.1 ? 23.8 0.5 (11.9) (11.9) 10.1 8.1 ? 6.4 5.45 3.1 2.2 8.0 ? for reference ? for reference 3.5 8.0 10.1 2.2 5.45 16.0 0.5 0.5(0.02) 3.5 ep 2f-b3 l2 0g3 24 separate type discrimination mark 3.1 6.4 separate type h bridge type (0.94) (0.64) + + vent hole date code part number + 2 -1.3 1.3(0.05 0.05) ? (0.09) (0.21) (0.25) (0.4) 8.0 (0.14) (0.09) (0.21) (0.4) (0.31) (0.14) (0.14) (0.63) 4 -0.5 1.1(0.02 0.04) 2(0.079) (0.94) (0.64) (0.63) (0.14) (0.4) (0.31) (0.14) 2 -1.3 1.3(0.05 0.05) 4 - 0.6( 0.22) ? (0.31) (0.4) 3.5 (0.14) (0.09) (0.12) (0.21) (0.21) (0.09) (0.12) (0.21) (0.25) (0.32) (0.32) (0.32) (0.32) + + +
3 ep2f / ep1f series ep1f series [h bridge type] [separate type] 2 - 1.9 +0.1 e 0 2 - 1.9 +0.1 e 0 1.9 +0.1 e 0 4 - 1.5 +0.1 e 0 2 - 1.1 +0.1 e 0 2 - 1.5 +0.1 e 0 4 - 1.1 +0.1 e 0 2 - 1.5 +0.1 e 0 4 - 1.1 +0.1 e 0 ( 0.075) ( 0.075) ep2f series ep1f series ( 0.043) ( 0.059) ( 0.075) ( 0.043) ( 0.059) ( 0.043) ( 0.059) pcb pad layout mm (inch) (bottom view) japan ep1f-b3g1 22 14.6 0.5 16.2 0.5 16.0 0.5 0.5(0.02) 3.5 3.1 6.4 2.2 5.45 10.1(0.4) 2.65 (0.1) 8.0(0.31) 3.5 1.3 1.3 2-0.5 1.1 2- 0.6 vent hole date code part number 4a 1 + e + e + e (0.050 .05) (0.02 0.04) for reference (0.12) (0.25) (0.14) ( 0.02) (0.21) (0.09) (0.14) (0.63) (0.63) (0.58)
4 ep2f / ep1f series specifications items contact form contact material contact resistance contact switching voltage contact switching current contact carrying current operate time release time normal operate power insulation resistance breakdown voltage shock resistance vibration resistance ambient temperature coil temperature rise life expectancy weight ep2f ep1f 1 form c ? ? ? ?
5 ep2f / ep1f series numbering system tr1 tr2 100 ms min. it is necessary to take more than 100 msec intervals for on / off timing between driving tr1 and tr2. if the interval is less than 100 msec, an excessive current happen to flow to the relay contacts. ep2f e b3 l 1 s t wiring nil : h bridge type t : separate type enclosure nil : unsealed (standard type) t : sealed operate voltage (at 25 ? c) 1 : 6.5 v max. 2 : 7.0 v max. 3 : 7.5 v max. contact material l, n : silver oxide complex alloy, type i g : silver oxide complex alloy, type ii type ep2f ep1f motor tr1 tr2 stop off off forward on off reverse off on typical application (h bridge type) m tr1 tr2 16 v
6 ep2f / ep1f series technical data 0.5 1.0 1.5 0 5 10 release time (ms) applied power (w) 0.5 1.0 1.5 0 5 10 operate time (ms) applied power (w) mean with diode 0.5 1.0 1.5 0 50 100 coil temperature rise ( ? c) applied power (w) 2.0 i c = 0a 10 20 150 coil temperature rise ( ? c) energized time (minutes) 30 0 100 50 v coil = 12 v, i c = 25 a v coil = 12 v, i c = 0 a v coil = 7.5 v, i c = 0 a v coil = 7.5 v, i c = 25 a operate time (ep2f-b3l1) release time (ep2f-b3l1) coil temperature (ep2f-b3l1) mean without diode
7 ep2f / ep1f series
ep2f / ep1f 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 express, 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 component, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, 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. customers must check the quality grade of each device before using it in a particular application. standard: computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots special: transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically de- signed for life support) specific: aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. the quality grade of nec/tokin devices is "standard" unless 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 nec/tokin sales representative in advance. (note) (1) "nec/tokin" as used in this statement means nec/tokin corporation and also includes its majority- owned subsidiaries. (2) "nec/tokin electronic component products" means any electronic component product developed or manu- factured by or for nec/tokin (as defi ned above). de0202
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