DATA S H E E T MINIATURE SIGNAL RELAY EA2 SERIES COMPACT AND LIGHTWEIGHT DESCRIPTION The EA2 series has reduced package size and power consumption to other NEC Conventional relays. Furthermore, it complies with 1500 V surge-voltage requirement of FCC part 68 by the unique structure and the efficient magnetic circuit FEATURES TM Low power consumption TM Compact and light weight TM 2 form c contact arrangement TM Low magnetic arrangement TM Breakdown voltage : 1000 Vac (surge voltage 1500 V), FCC Part 68 compliant TM Tube packaging TM UL recognized (E73266), CAS certified (LR46266) APPLICATIONS Electronic switching systems, PBX, key telephone systems, automatic test equipment and other electronic equipment. ATTENTION 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. Document No. ER0001EJ6V1DS00 (6th edition) Date Published December 2000 M Printed in Japan WORLD PRODUCTS INC. Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com (c) 1989 (1996) EA2 SERIES OUTLINE DRAWING AND DIMENSIONS PAD LAYOUT (bottom view) Unit : mm (inch) 0.33 (0.013) 7.62 (0.30) 10- 0.8(0.03) (0.36) 2.54 (0.10) 0.5 (0.02) 0.25 (0.01) 10.16 (0.40) Note. Tolerance + - 0.1 ( + - 0.004) unless othewise specified 7.62 3.5 2.54 2.54 (0.10) 9.2 max. (0.21) (0.56) 5.4 max. 14.2 max. (0.10) (0.30) Note. tolerance + - 0.2 ( + - 0.008) unless otherwise specified Dimensions in show basic size. NJ type : Cover height-6.3 mm (0.248), Leads-2.8 mm (0.11) SAFETY STANDARD AND RATING MARKINGS 1 2 UL Recognized (UL508) File No E73266 EA2-5 30 Vdc, 1 A (Resistive) 110 Vdc, 0.3 A (Resistive) 125 Vdc, 0.5 A (Resistive) q Part number JAPAN 5 9106 CSA Certificated (CSA C22.2 No 14) File No LR46266 Spacing : UL114, UL478 w Manufacturer e Country of origin 3 r Date code 4 t Index mark of relay direction Standard type (pin No. 1, 10.) y UL, CSA Marking 1 2 EA2-5NU JAPAN 3 9106 5 6 4 UL recognized, CSA certified type PIN CONFIGURATIONS S 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 - + + + - + - RS - + - 10 9 8 7 6 10 9 8 7 6 Index mark of relay direction Non-latch type (not energized position) Single coil latch type (reset position) 10 9 8 7 6 R Double coil latch type (reset position) S : Coil polarity of set (operate) R : Coil polarity of reset (release) 2 ER0001EJ6V1DS00 WORLD PRODUCTS INC. Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com EA2 SERIES PART NUMBER SYSTEM EA2 - 3 S NU Nil : Standard type NU : UL recognized, CSA certified type NJ : Trimmed leads type NP : Silver-palladium alloy contact (with gold alloy overlay) UL recognized, CAS certified type Latch type Nil : Non-latch type (standard type) S : Single coil latch type T : Double coil latch type Nominal coil voltage 3, 4.5, 5, 6, 9, 12, 24 Volts EA2 series PERFORMANCE CHARACTERISTICS Contact Form Contact rating 2 form c Maximum switching power 30 W (resistive) 62.5 VA (resistive) Maximum switching voltage 220 Vdc 250 Vac Maximum switching current 1A Maximum carrying current 2A Minimum contact ratings 10 mVdc, 10 A 1 Initial contact resistance 50 m typ. (Initial) Contact material Silver alloy with gold alloy overlay Nominal operating Power Minimum operating Power Non-latch type and double coil latch type 140 mW (3 to 12 V) 200 mW (24 V) Single coil Latch type 100 mW (3 to 12 V) 150 mW (24 V) Non-latch type and double coil latch type 79 mW (3 to 12 V) 113 mW (24 V) Single coil latch type 56 mW (3 to 12 V) 85 mW (24 V) Operate time (excluding bounce) Approximately 2 ms without diode Release time (excluding bounce) Approximately 1 ms without diode Insulation resistance 1000 M at 500 Vdc Between open contacts Breakdown voltage Between adjacent contacts 1000 Vac (for one minute) 1500 V surge (10 x 160 s 2) Between coil and contact 735 m / s 2 (misoperating) 980 m / s 2 (destructive failure) Shock resistance 10 to 55 Hz at double amplitude of 3 mm (misoperating) Vibration resistance 10 to 55 Hz, at double amplitude of 5 mm (destructive failure) Ambient temperature -40C to 85C Coil temperature rise 18 degrees at nominal coil voltage 1 x 108 operations (Non-latch type) 3 Noload 1 x 107 operations (latch type) Running specifications 50 Vdc 0.1 A (resistive), 1 x 106 operations at 85C, 2 Hz Load 10 Vdc 10 mA (resistive), 1 x 106 operations at 85C, 2 Hz Weight Approximately 1.5 grams 1 This value is a reference value in the resistance load. Minimum capacity changes depending on seitching frequency and environment temperature and the load. 2 Rise time : 10 s, fall time : 160 s 3 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 which a steady characteristic is maintained is 1 x 107 times. WORLD PRODUCTS INC. Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com ER0001EJ6V1DS00 3 EA2 SERIES Recommended relay drive conditions Drive under conditions. If it is impossible, please inquire to NEC. 4 Nonlatch type Voltage: within 5% at nominal voltage Single coil latch type Double coil latch type Square pulse (rise and fall time is rapidly) Pulse height : within 5% at nominal voltage Pulse width : More than 10 ms ER0001EJ6V1DS00 Ambient temperature -40 to +85C WORLD PRODUCTS INC. Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com EA2 SERIES PRODUCT LINEUP Non-latch Type at 20C Coil Resistance () 10 % Nominal Coil Voltage (Vdc) 3 Must Operate Voltage (Vdc) 64.3 Must Release Voltage (Vdc) 2.25 0.3 4.5 145 3.38 0.45 5 178 3.75 0.5 6 257 4.5 0.6 9 579 6.75 0.9 12 1028 9 1.2 24 2880 18 2.4 Single-Coil Latch Type at 20C Nominal Coil Voltage (Vdc) 3 Coil Resistance () 10 % Must Operate Voltage (Vdc) Must Release Voltage (Vdc) 90 2.25 2.25 4.5 202.5 3.38 3.38 5 250 3.75 3.75 6 360 4.5 4.5 9 810 6.75 6.75 12 1440 9 9 24 3840 18 18 Double-Coil Latch Type (Can not be driven by revese polarity for reverse operation.) Voltage (Vdc) 3 4.5 5 6 9 12 24 Note Must Operate Voltage (Vdc) Coil Resistance () 10 % Nominal Coil Must Release Voltage (Vdc) S 64.3 2.25 - R 64.3 - 2.25 S 145 3.38 - R 145 - 3.38 S 178 3.75 - R 178 - 3.75 S 257 4.5 - R 257 - 4.5 S 579 6.75 - - 6.75 - 9 R 579 S 1028 R 1028 S 2880 R 2880 at 20C 9 - 18 - - 18 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. WORLD PRODUCTS INC. Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com ER0001EJ6V1DS00 5 EA2 SERIES PERFORMANCE DATA COIL TEMPERATURE RISE Coil temperature Rise (degree C) Coil temperature Rise (degree C) Temperature is measured by coil resistance. 60 40 20 0 0 100 200 300 400 60 Applied power 0.4 W 40 Applied power 0.2 W 20 Applied power 0.14 W 0 0 5 Applied Power (mW) 1.0 0.5 0.2 0.1 50 100 This is maximum value of permissible alteration. Inquiry for NEC at continuous use. A ratio of nominal coil voltage (%) DC (Resistive) AC (Resistive) 2.0 Contact current (A) 20 MAXIMUM COIL VOLTAGE This is allowed maximum value. Inquiry for NEC under maximum value at continuous use. 20 15 Applied Time (minute) SWITCHING CAPACITY 10 10 200 150 100 50 0 -40 200 -20 250 V.AC Contact voltage (V) 0 20 40 60 80 100 Ambient temperature (degree C) 220 V.DC APPLIED VOLTAGE VS. TIMING (Sample: EA2-5NU) (Without coil diode) 4 Release time (ms) Operate time (ms) 4 3 2 1 0 3 2 1 0 0 100 200 300 0 400 Applied power (mW) 100 200 300 400 Applied power (mW) WORLD PRODUCTS INC. 6 ER0001EJ6V1DS00 Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com EA2 SERIES OPERATE AND RELEASE VOLTAGE VS. AMBIENT TEMPERATURE A ratio of nominal coil voltage (%) 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. 100 Operate voltage (maximum) 80 Operate voltage (typical) 60 Release voltage (typical) 40 20 0 -40 -20 0 20 40 60 80 100 Ambient temperature (degree C) RUNNING TEST (Nonload) (Load: None, Driving: 5V.DC, 50 Hz, 50% duty, Ambient temperature: Room temperature, Sample: EA2-5NU 20 pieces) 5 Operate voltage (V) Release voltage (V) Contact resistance (m-ohms) 10000 1000 100 10 4 Operate Voltage 3 Release Voltage 2 1 0 0 20 50 100 500 1000 0 20 50 100 500 1000 Operations ( x104) Operations (x104) RUNNING TEST (Load) (Load: 50 V.DC 0.1 A resistive, Driving: 5V.DC, 5 Hz, 50% duty, Ambient temperature: 85 degree C, Sample: EA2-5NU 10 pieces) 5 Operate voltage (V) Release voltage (V) Contact resistance (m-ohms) 10000 1000 100 10 Operate Voltage 4 3 Release Voltage 2 1 0 0 2 5 10 50 100 0 2 5 10 50 100 Operations ( x104) Operations (x104) WORLD PRODUCTS INC. Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com ER0001EJ6V1DS00 7 EA2 SERIES BREAKDOWN VOLTAGE Sample: EA2-5NU 10 pieces (a) Between open contacts (b) Between adjacent contacts Distribution (%) Distribution (%) 100 50 0 100 50 0 0.5 2.0 1.0 1.5 Breakdown voltage (kV) 0.5 2.0 1.0 1.5 Breakdown voltage (kV) Distribution (%) (c) Between coil to contact 100 50 0 0.5 2.0 1.0 1.5 Breakdown voltage (kV) ALTERNATION OF VOLTAGE AT DENSELY MOUNTING (Magnet interference) Alternation of operate voltage Alternation of release voltage A ratio of alternation (%) A ratio of alternation (%) +40 +30 +20 +10 0 -10 -20 -30 -40 I II III IV V VI +40 +30 +20 +10 0 -10 -20 -30 -40 I Device under test ON ON OFF ON OFF ON OFF OFF III II III IV V VI 2.54 mm IV 2.54 mm I II Mounting layout 2.54 mm Mounting layout ON OFF ON OFF ON OFF V VI WORLD PRODUCTS INC. 8 ER0001EJ6V1DS00 Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com EA2 SERIES PACKAGE Dimensions of Relay Tube (Unit : mm) 40 pieces / Tube Material : Polyvinyl chloride (auti-static treated) 586 + -1 12.0 + - 0.3 (4.6) (0.5 t) (6.2) (2.5) 13.7 + - 0.3 ( ) Reference (4.5) Outline of Package Rubber stopper (Red) Rubber stopper (Green) Index Mark WORLD PRODUCTS INC. Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com ER0001EJ6V1DS00 9 EA2 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. Coil Rated voltage 0 1 ms max. 1 ms max. - 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. - Pins 5 and 6 of the non-latching and single-coil latching types of the EA2 relay are not used. However, do not connect an external circuit to these pins. 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 Humidity (%RH) 85 80 60 40 20 5 -60 - 40 -20 0 20 40 Temperature (C) 60 80 100 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 50C. - 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: 250C max., Time: 5 to 10 seconds, Preheating: 100C max./1 minute max. <3> Manual soldering Solder temperature: 350C, 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. WORLD PRODUCTS INC. 10 ER0001EJ6V1DS00 Ph (707) 996-5201 Fx (707) 996-3380 www.worldproducts.com e-mail: corpsales@worldproducts.com EA2 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 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 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 antifailure 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 designed 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 manufactured by or for NEC (as defined above). DE0202 WORLD PRODUCTS INC. 3/01 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