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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 ? compact and light weight ? 2 form c contact arrangement ? low power consumption ? reduced mounting space : 15 mm 7.5 mm ? high-breakdown voltage of coil to contacts : 1500 vac, 2500 v (rise time : 2 s, fall time : 10 s) ? capable of high-power switching : 700 vac, 4.2 a, 4 times in case of accident ? 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. er0002ej4v1ds00 (4th edition) date published december 2000 m cp(k) 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. ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
2 ec2 series er0002ej4v1ds00 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. 03) 5 2.54 (0.1) 2 2.54(0.1) 2.54(0.1) 2.54 (0.10) 2.54 (0.10) 8- 0.8 (0.03) 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) ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
3 er0002ej4v1ds00 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 a ? 1 50 m ? 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 ? at 500 vdc 1000 vac (for one minute) 1500 v surge (10 160 s ? 2 ) 1500 vac (for one minute) double coil 1000 vac (for one minute) 2500 v surge, (2 10 s ? 3 ) latch type 1500 v surge (10 160 s ? 2 ) 735 m / s 2 (misoperating) 980 m / s 2 (destructive failure) 10 to 55 hz double amplitude of 3 mm (misoperating) 10 to 55 hz, double amplitude of 5 mm (destructive failure) ?0 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 s, fall time : 160 s ? 3 rise time : 2 s, fall time : 10 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. recommended relay drive conditions drive under conditions. if it is impossible, please inquire to nec. nonlatch type single coil latch type double coil latch type voltage: within 5% at nominal voltage square pulse (rise and fall time is rapidly) pulse height : within 5% at nominal voltage pulse width : more than 10 ms ambient temperature ?0 to +85?c ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
4 ec2 series er0002ej4v1ds00 product lineup non-latch type nominal coil voltage (vdc) 3 4.5 5 6 9 12 24 coil resistance ( ? ) 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 ( ? ) 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 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 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 ( ? ) 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 + + ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
5 er0002ej4v1ds00 ec2 series performance data coil temperature rise temperature is measured by coil resistance. switching capacity this is allowed maximum value. inquiry for nec under maximum value at continuous use. applied voltage vs. timing (sample: ec2-5nu) maximum coil voltage this is maximum value of permissible alteration. inquiry for nec at continuous use. 100 60 40 20 0 200 applied power (mw) coil temperature rise (degree c) coil temperature rise (degree c) 300 400 0 5 60 40 20 0 10 applied time (minute) 15 20 0 100 3 4 2 1 0 200 applied power (mw) 300 400 0 100 3 4 2 1 0 200 applied power (mw) release time (ms) operate time (ms) (without coil diode) 300 400 0 0 50 100 150 200 ambient temperature (degree c) a ratio of nominal coil voltage (%) 40 200 20406080100 applied power 0.4 w applied power 0.2 w applied power 0.14 w 0.1 2.0 1.0 0.5 0.2 contact voltage (v) contact current (a) 250 v.ac 220 v.dc 10 20 50 100 200 dc (resistive) ac (resistive) ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
6 ec2 series er0002ej4v1ds00 operate and release voltage vs. ambient temperature this shows a typical change of operate (release) voltage. maximum value of operate estimated, so it must be applied more than this value for safety operation. in case of hot start operation , please inquiry for nec. running test (nonload) (load: none, driving: 5v.dc, 50 hz, 50% duty, ambient temperature: room temperature, sample: ec2-5nu 20 pieces) running test (load) (load: 50 v.dc 0.1 a resistive, driving: 5v.dc, 5 hz, 50% duty, ambient temperature: 85 degree c, sample: ec2-5nu 10 pieces) 40 20 0 0 20 40 60 80 100 20 ambient temperature (degree c) a ratio of nominal coil voltage (%) 40 60 80 100 0 20 50 100 500 1000 10 10000 1000 100 operations ( 10 4 ) contact resistance (m-ohms) operate voltage (v) release voltage (v) contact resistance (m-ohms) operate voltage (v) release voltage (v) operate voltage (maximum) operate voltage (typical) release voltage (typical) 0 20 50 100 500 1000 0 5 4 3 2 1 operations ( 10 4 ) 0 2 5 10 50 100 10 10000 1000 100 operations ( 10 4 ) operate voltage release voltage 0 2 5 10 50 100 0 5 4 3 2 1 operations ( 10 4 ) operate voltage release voltage ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
7 er0002ej4v1ds00 ec2 series breakdown voltage sample: ec2-5nu 10 pieces alternation of voltage at densely mounting (magnet interference) 0.5 50 100 0 1.0 1.5 breakdown voltage (kv) (a) between open contacts 2.0 0.5 50 100 0 1.0 1.5 breakdown voltage (kv) (b) between adjacent contacts 2.0 1.5 50 100 0 2.0 2.5 breakdown voltage (kv) distribution (%) distribution (%) distribution (%) (c) between coil to contact 3.0 i ii iii iv v vi +40 +30 +20 +10 0 10 20 30 40 mounting layout device under test alternation of operate voltage i ii iii iv v vi +40 +30 +20 +10 0 10 20 30 40 mounting layout a ratio of alternation (%) a ratio of alternation (%) alternation of release voltage on on on on on v on on iii off off iv off off off vi i off off ii 2.54 mm 2.54 mm 2.54 mm ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
8 ec2 series er0002ej4v1ds00 package 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 ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
9 er0002ej4v1ds00 ec2 series notes on correct use 1. notes on contact load make sure that the contact load is within the specified range; otherwise, the lifetime of the contacts will be shortened considerably. note that the running performance shown is an example, and that it varies depending on parameters such as the type of load, switching frequency, driver circuit, and ambient temperature under the actual operating conditions. evaluate the performance by using the actual circuit before using the relay. 2. driving relays - if the internal connection diagram of a relay shows + and - symbols on the coil, apply the rated voltage to the relay in the specified direction. if a rippled dc current source is used, abnormalities such as beat at the coil may occur. - the maximum voltage that can be applied to the coil of the relay varies depending on the ambient temperature. generally, the higher the voltage applied to the coil, the shorter the operating time. note, however, that a high voltage also increases the bounce of the contacts and the contact opening and closing frequency, which may shorten the lifetime of the contacts. - if the driving voltage waveform of the relay coil rises and falls gradually, the inherent performance of the relay may not be fully realized. make sure that the voltage waveform instantaneously rises and falls as a pulse. - for a latching relay, apply a voltage to the coil according to the polarity specified in the internal connection diagram of the relay. - if a current is applied to the coil over a long period of time, the coil temperature rises, promoting generation of organic gas inside the relay, which may result in faulty contacts. in this case, use of a latching relay is recommended. - the operating time and release time indicate the time required for each contact to close after the voltage has been applied to or removed from the coil. however, because the relay has a mechanical structure, a bounce state exists at the end of the operating and release times. furthermore, because additional time is required until the contact stabilizes after being in a high-resistance state, care must be taken when using the relay at high speeds. 3. operating environment - make sure that the relay mounted in the application set is used within the specified temperature range. use of a relay at a temperature outside this range may adversely affect insulation or contact performance. - if the relay is used for a long period of time in highly humid (rh 85% or higher) environment, moisture may be absorbed into the relay. this moisture may react with the nox and sox generated by glow discharges that occur when the contacts are opened or closed, producing nitric or sulfuric acid. if this happens, the acid produced may corrode the metallic parts of the relay, causing operational malfunction. - because the operating temperature range varies depending on the humidity, use the relay in the temperature range illustrated in the figure below. prevent the relay from being frozen and avoid the generation of condensation. - the relay maintains constant sealability under normal atmospheric pressure (810 to 1,200 hpa). its sealability may be degraded or the relay may be deformed and malfunction if it is used under barometric conditions exceeding the specified range. - the same applies when the relay is stored or transported. keep the upper-limit value of the temperature to which the relay is exposed after it is removed from the carton box to within 50 ? c. - if excessive vibration or shock is applied to the relay, it may malfunction and the contacts remain closed. vibration or shock applied to the relay during operation may cause considerable damage to or wearing of the contacts. note that operation of a snap switch mounted close to the relay or shock due to the operation of magnetic solenoid may also cause malfunctioning. 4. notes on mounting relays - when mounting a relay onto a pc board using an automatic chip mounter, if excessive force is applied to the cover of the relay when the relay is chucked or inserted, the cover may be damaged or the characteristics of the relay degraded. keep the force applied to the relay to within 1 kg. - avoid bending the pins to temporarily secure the relay to the pc board. bending the pins may degrade sealability or adversely affect the internal mechanism. - it is recommended to solder the relay onto a pc board under the following conditions: <1> reflow soldering refer to the recommended soldering temperature profile. <2> flow soldering solder temperature: 250 ? c max., time: 5 to 10 seconds, preheating: 100 ? c max./1 minute max. <3> manual soldering solder temperature: 350 ? c, time: 2 to 3 seconds - ventilation immediately after soldering is recommended. avoid immersing the relay in cleaning solvent immediately after soldering due to the danger of thermal shock being applied to the relay. - use an alcohol-based or water-based cleaning solvent. never use thinner and benzene because they may damage the relay housing. - do not use ultrasonic cleaning because the vibration energy generated by the ultrasonic waves may cause the contacts to remain closed. 5. handling - relays are packaged in magazine cases for shipment. if a space is created in the case after some relays have been removed, be sure to insert a stopper to secure the remaining relays in the case. if relays are not well secured, vibration during transportation may cause malfunctioning of the contacts. - exercise care in handling the relay so as to avoid dropping it or allowing it to fall. do not use a relay that has been dropped. if a relay drops from a workbench to the floor, a shock of 9,800 m/s2 (1,000 g) or more is applied to the relay, possibly damaging its functions. even if a light shock has been applied to the relay, thoroughly evaluate its operation before using it. - latching relays are factory-set to the reset state for shipment. a latching relay may be set, however, by vibration or shock applied while being transported. be sure to forcibly reset the relay before using it in the application set. also note that the relay may be set by unexpected vibration or shock when it is used in a portable set. - the sealability of a surface-mount relay may be lost if the relay absorbs moisture and is then heated during soldering. when storing relays, therefore, observe the following points: <1> the storage humidity must be no more than 70% rh. the recommended storage period is 3 months maximum. <2> to store the relay for 3 months or longer, keep the storage humidity to within 50% rh. do not store the relay for more than 6 months. 1 ms max. coil rated voltage 0 1 ms max. 60 40 20 0 20 temperature ( ? c) humidity (%rh) 20 5 40 60 80 85 40 60 80 100 ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com world products inc.
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, 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 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. (note) (1) "nec" as used in this statement means nec corporation and also includes its majority-owned subsidiaries. (2) "nec electronic component products" means any electronic component product developed or manufac- tured by or for nec (as defined above). de0202 3/01 world products inc. 19654 eighth street east, po box 517 sonoma, ca 95476-0517 usa ph (707) 996-5201 fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com
mouser electronics authorized distributor click to view pricing, inventory, delivery & lifecycle information: nec: ? ec2-3tnj? ec2-4.5snj? ec2-12nu? ec2-5snj? ec2-4.5nj? ec2-24nj? ec2-5tnj? ec2-5nj? ec2-24snj? ec2- 3snj? ec2-12nj? ec2-12snj? ED2-3NJ? ec2-4.5nu? ec2-3nj? ec2-3nu

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