description the ec2 series has reduced mounting space but sustained high-performance of nec ea2 series. furthermore, it complies with 2500 v surge-voltage requirement of bellcore specification. features a compact and light weight a 2 form c contact arrangement a low power consumption a reduced mounting space : 15 mm 7.5 mm a high-breakdown voltage of coil to contacts : 1500 vac, 2500 v (rise time : 2 m s, fall time : 10 m s) a capable of high-power switching : 700 vac, 4.2 a, 4 times in case of accident a ul recognized (e73266), cas certified (lr46266) applications electronic switching systems, pbx, terminal equipment, telephone systems. data sheet compact and lightweight, small mounting size, high breakdown voltage ec2 series miniature signal relay document no. er0002ej4v0ds00 (4th edition) date published june 1999 m printed in japan 1994 ( 1996 ) for right use of miniature relays do not exceed maximum ratings. do not use relays under exceeding conditions such as over ambient temperature, over voltage and over current. incorrect use could result in abnormal heating, damage to related parts or cause burning. read cautions in the selection guide. read the cautions described in nec's "miniature relays" (er0046ej * ) when you choose relays for your application.
2 ec2 series data sheet er0002ej4v0ds00 outline drawing and dimensions pad layout (bottom view) unit : mm (inch) markings ec2-5nu 9206 japan japan 1 4 3 6 5 2 ec2-5 9206 1 4 3 5 2 q part number w manufacturer e country of origin r date code t index mark of relay direction (pin no. 1, 12) y ul, csa marking standard type ul recognized, csa certified type pin configurations (bottom view) 7.5 (0.30) max. 9.4(0.37) max. 3.2 (0.13) 5.08 0.25 (0.01) 0.5 (0.02) 15.0 (0.59) max. 5.08 2.54 2.54 2.54 (0.20) (0.10)(0.10)(0.10) (0.20) note. general tolerance : 0.2 ( 0.008) dimensions in show basic size. nj type : leads-2.8 mm (0.11) + + note. general tolerance : 0.1 ( 0.004) + + 4 2.54 (0.1) 2 2.54(0.1) 2.54(0.1) 8 - 0.8 (0.31) 5 2.54 (0.1) 2 2.54(0.1) 2.54(0.1) 2.54 (0.10) 2.54 (0.10) 10- 0.8 (0.31) ff non-latch and single coil latch double coil latch index mark of relay direction non-latch type (not energized position) single coil latch type (reset position) double coil latch type (reset position) s : coil polarity of set (operate) r : coil polarity of reset (release) 13456 12 10 9 8 7 1345 12 10 9 8 1345 12 10 9 s rsr 8 safety standard and rating ul recognized (ul508) * file no e73266 csa certificated (csa c22.2 no 14) file no lr46266 30 vdc, 2a (resistive) 110 vdc, 0.3a (resistive) 125 vdc, 0.5a (resistive) * spacing : ul114, ul478 tuv certificate (en60255 / iec60255) creepage and clearance of coil to contact is more than 2 mm. (according en60950) basic insulation class no. r 9751153 (nonlatch and single-coil-latch)
3 data sheet er0002ej4v0ds00 ec2 series part number system ec2 9 s nu nil : standard type nu : ul recognized, csa certified type nj : trimed leads type * np : silver-palladium alloy contact (with gold alloy overlay) * latch type nil : non-latch type s : single coil latch type t : double coil latch type nominal coil voltage 3, 4.5, 5, 6, 9, 12, 24 v ec2 series * ul recognized, csa certified type 2 form c silver alloy with gold alloy overlay 60 w, 125 va 220 vdc, 250 vac 2 a 2 a 10 mvdc, 10 m a * 1 50 m w typ. (initial) 140 mw (3 to 12 v), 200 mw (24 v) 100 mw 140 mw approx. 2 ms approx. 1 ms without diode 1000 m w at 500 vdc 1000 vac (for one minute) 1500 v surge (10 160 m s * 2 ) 1500 vac (for one minute) double coil 1000 vac (for one minute) 2500 v surge, (2 10 m s * 3 ) latch type 1500 v surge (10 160 m s * 2 ) 735 m / s 2 (75 g) (misoperating) 980 m / s 2 (100 g) (destructive failure) 10 to 55 hz double amplitude of 3 mm (20 g) (misoperating) 10 to 55 hz, double amplitude of 5 mm (30 g) (destructive failure) C40 to 85?c 18 degrees at nominal coil voltage (140 mw) 1 10 8 * 4 operations (non-latch type) 1 10 7 operations (latch type) 50 vdc, 0.1 a (resistive) 1 10 6 operations at 85?c, 2 hz 10 vdc, 10 ma (resistive) 1 10 6 operations at 85?c, 2 hz approx. 1.9 g contact form contact material maximum switching power maximum switching voltage maximum switching current maximum carrying current minimum contact ratings initial contact resistance non-latch type nominal operating power single coil latch type single coil latch type operate time (excluding bounce) release time (excluding bounce) insulation resistance between open contacts breakdown voltage between adjacent contacts between coil and contact shock resistance vibration resistance ambient temperature coil temperature rise no-load load weight performance characteristics running specifications contact ratings (ul / csa rating) * 1 this value is reference value in the resistance load. minimum capacity changes depending on switching frequency and environment temperatur and the load. * 2 rise time : 10 m s, fall time : 160 m s * 3 rise time : 2 m s, fall time : 10 m s * 4 this shows a number of operation where it can be running by which a fatal defect is not caused, and a number of operation by whicha steady characteristic is maintained is 1 10 7 times.
4 ec2 series data sheet er0002ej4v0ds00 product lineup non-latch type nominal coil voltage (vdc) 3 4.5 5 6 9 12 24 coil resistance ( w ) 10 % 64.3 145 178 257 579 1028 2880 must operate voltage (vdc) 2.25 3.38 3.75 4.5 6.75 9 18 must release voltage (vdc) 0.3 0.45 0.5 0.6 0.9 1.2 2.4 single-coil latch type at 20?c at 20?c at 20?c nominal coil voltage (vdc) 3 4.5 5 6 9 12 24 coil resistance ( w ) 10 % s 64.3 r 64.3 s 145 r 145 s 178 r 178 s 257 r 257 s 579 r 579 s 1028 r 1028 s 4114 r 4114 must operate voltage (vdc) 2.25 C 3.38 C 3.75 C 4.5 C 6.75 C 9 C 18 C must release voltage (vdc) C 2.25 C 3.38 C 3.75 C 4.5 C 6.75 C 9 C 18 double-coil latch type ** (can not be driven by revese polarity for reverse operation.) note * test by pulse voltage ** s : set coil (pin no.1... , pin no.5... ) r : reset coil (pin no.10... , pin no.6... ) the latch type relays should be initalized at appointed position before using, and should be enegized to specific polanity by a bone polabity to avoid wrong operation. any special coil requirement, please contact nec for availability. nominal coil voltage (vdc) 3 4.5 5 6 9 12 24 coil resistance ( w ) 10 % 90 202.5 250 360 810 1440 5760 must operate voltage (vdc) 2.25 3.38 3.75 4.5 6.75 9 18 must release voltage (vdc) 2.25 3.38 3.75 4.5 6.75 9 18 + C + C
5 data sheet er0002ej4v0ds00 ec2 series typical performance data 100 0 10 20 30 40 50 200 300 400 3 2 1 0 100 200 300 400 500 applied power (mw) operate time or bounce time at operate (ms) release time or bounce time at release (ms) release time or bounce time at release (ms) applied power (mw) coil temperarure rise (?c) 30 100 200 2 1 0.5 0.4 0.3 0.2 switching voltage (v) switching current (a) operate time bounce time operate 2 1 0 100 200 300 400 500 applied power (mw) bounce time at release release time 3 2 1 0 100 200 300 400 500 applied power (mw) release time bounce time at release 0.273 a 250 v 220 v dc load (resistive) ac load (resistive) switching capacity operate time release time without diode release time with diode coil temperature rise running specifications (noload) 5 4 3 2 1 0 123410 sample : ee2-5 n=10 load : none operate voltage release voltage operate voltage or release voltage(v) number of operations( x 10 6 operations) 1000 500 300 200 100 50 30 20 10 1 0 23 5 10 temperature : 85?c drive : 5 vdc, 10 hz 5% duty make contact break contact contact resistance(m w ) number of operations( x 10 6 operations)
6 ec2 series data sheet er0002ej4v0ds00 +40 +30 +20 +10 0 i ii iii iv v vi 10 20 30 40 +40 +30 +20 +10 0 i ii iii iv v vi 10 20 30 40 2.54 2.54 on on on on on on off off on off off i ii iii iv layout v off off off layout vi mounting layout (mm) layout layout layout layout sample min. max. min. max. layout layout drift of operate voltage (%) drift of release voltage (%) magnetic interference breakdown voltage 0.5 1.0 breakdown voltage (kv) breakdown voltage (kv) breakdown voltage (kv) appearance appearance appearance 10 5 0 1.5 sample : ec2-5 (a) between open contacts (n = 10 pcs) (a) between adjacent contacts (n = 10 pcs) (a) between coil and contacts (n = 25 pcs) 1.5 2.0 10 5 0 2.5 2.0 2.5 10 5 0 3.0
7 data sheet er0002ej4v0ds00 ec2 series package guide to applications 1. when connecting coils, refer to the pin configuration to prevent misoperation or malfunction. 2. the latch type relay should be initialized at the appointed position (set or reset position) when using, and should be energized or deenergized to the specified polarity to avoid wrong operations by reversed contact state. 3. soldering should be done at 250 ?c within 10 sec. 4. ultrasonic cleaning is not recommended to keep reliable contact performance. alcohol based solvents are available as proper solvents. 5. minimum contact load of the relay is 10 mv, 10 m a. this value is a reference value in the resistance load. minimum capacity changes depending on swiching frequency and environment temperature and the load. rubber stopper (red) rubber stopper (green) index mark 543 1 15.5 0.3 (2.4) (4.8) (0.5 t) + 11.9 0.3 + + ( ) reference dimensions of relay tube (unit : mm) 35 pieces / tube material : polyvinyl chloride (auti-static treated) outline of package
ec2 series no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec corporation. nec corporation assumes no responsibility for any errors which may appear in this document. nec corporation does not assume any liability for infringement of patents, copyrights or other intellec- tual 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 corporation or others. while nec 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 electronic component, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti- failure features. nec 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, au- dio and visual equipment, home electronic appliances, machine tools, personal electronic equip- ment 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 devices is "standard" unless otherwise specified in nec's data sheets or data books. if customers intend to use nec devices for applications other than those specified for standard quality grade, they should contact an nec sales representative in advance. anti-radioactive design is not implemented in this product.
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