AUTOMOTIVE RELAYS Twin Relays EN2/EP2 Series Single Relays EP1/MR301 Series JC–13003D (5th edition) August 1995 M Printed in Japan © 1992 DESCRIPTION The EN2, EP2, EPI and MR301 series power relays can meet the requirements of high quality and reliability in automotive eIectronics applications. The EN2 and EP2 series are the twin relays which have two units in one package and smaller than conventional two relays. These relays are divided into two types for different usage. One is H bridge type and the other is separate type. The EN2 series is suitable for heavy load applications (35 A max.). The EP2 series is designed for medium load applications (25 A max.). The EP1 and MR301 series are the 1C contact form relays. Many of these relays have been used in automotive electronics applications throughout the world. EN2 Series FEATURES ● Twin relay for motor and solenoid reversible control ● 30% Iess relay space than conventional two relays ● Contact switching current of 35 A max. ● High performance and productivity by unique symmetrical structure ● Flux tight housing ● Delivered in stick-tube for automatic insertion machine ● Washable type available PART NUMBERS AND COIL RATINGS Part Numbers H Bridge Type Separate Type Nominal Voltage (Vdc) Coil Resistance (Ω ± 10%) Nominal Current (mA) at 25˚C (77˚F) Must Must Nominal Operate Voltage Release Voltage Operate Power (Vdc max.) (Vdc min.) (W) EN2-1N1S EN2-1N1ST 12 125 96.0 6.5 0.6 1.15 EN2-1N2S EN2-1N2ST 12 125 96.0 7.0 0.6 1.15 EN2-2N3S EN2-2N3ST 12 180 67.0 7.5 0.6 0.8 EN2-2N4S EN2-2N4ST 12 180 67.0 8.0 0.6 0.8 EN2-3N4S EN2-3N4ST 12 250 53.0 8.0 0.9 0.64 EN2-3N5S EN2-3N5ST 12 250 53.0 8.5 0.9 0.64 ■ PART NUMBER SYSTEM EN2-B1N1ST Type 2 Nil : Standard type B : High current type Carrying Current Capacity 1 : 125 Ω ± 10% 2 : 180 Ω ± 10% 3 : 225 Ω ± 10% Coil Resistance (at 25°C) N : Silver oxide complex alloy type I H : Silver oxide complex alloy type II Contact Material Wiring Nil : H bridge type T : Sparate type Enclosure Nil : Unsealed S : Ssaled Operate Voltage (at 25°C) 1: 2: 3: 4: 5: 6.5 V max. 7.0 V max. 7.5 V max. 8.0 V max. 8.5 V max. mm (inch) [H Bridge Type] [Separate (T) Type] 16.0 ± 0.5 (0.63) (0.23) 5.75 (0.42) 10.75 (0.56) 14.1 35 (0.14) 2-1.3 × 1.3 (0.02 × 0.05) 4- φ 0.6 (φ 0.02) 3.1 (0.12) 2.7 (0.11) (bottom view) mm (inch) [H Bridge Type] [Separate (T) Type] 4-φ1.1 +0.1 –0 (φ 0.043) 2-φ1.5 +0.1 –0 (φ 0.059) 2 4-0.5 × 1.1 (0.02 × 0.04) (0.23) 5.75 (0.42) 10.75 (0.56) 14.1 4- φ 0.6 (φ 0.02) 16.0 ± 0.5 (0.63) 0.6(0.02) 6.4 (0.25) (0.56) 14.1 10.75 (0.42) 5.75 (0.23) 2-1.3 × 1.3 (0.02 × 0.05) ■ PCB PAD LAYOUT and SCHEMATICS 4-φ1.1 +0.1 –0 (φ 0.043) 16.0 ± 0.5 (0.63) 16.0 ± 0.5 (0.63) 6.4 (0.25) 3.1 (0.12) 2.7 (0.11) 2.7 (0.11) 5.45 (0.21) 2-0.5 × 1.1 (0.02 × 0.04) 5.45 (0.21) (0.56) 14.1 10.75 (0.42) 5.75 (0.23) 5.45 (0.21) 33.0 ± 0.5 (1.3) 35 (0.14) 0.6(0.02) 33.0 ± 0.5 (1.3) 2.7 (0.11) 3.1 5.45 (0.12) (0.21) 6.4 (0.25) ■ DIMENSIONS 4-φ1.5 +0.1 –0 (φ 0.059) 3 1 2 4 1 8 5 6 2-φ1.9 +0.1 –0 (φ 0.075) (Side A) 10 5 6 7 (Side B) 2-φ1.9 +0.1 –0 (φ 0.075) (Unit A) SPECIFICATIONS Contact Form Contact Material Contact Resistance Contact Switching Voltage Contact Switching Current Contact Carrying Current Standard High Operate Time Release Time Nominal Operate Power Insulation Resistance Breakdown Voltage Shock Resistance Vibration Resistance Ambient Temperature Coil Temperature Rise Weight 8 7 (Unit B) at 25˚C (77˚F) Items Life Expectancy 3 9 4 Mechanical Electrical Specification 1 form C × 2 [H Bridge Type & Separate Type] Silver oxide complex alloy (Special types available) 50 mΩ max. (measured at 7 A) initial 30 Vdc max. 5 Vdc min. 35 A max. (at 16 Vdc) 1 A min. 25 A max. (2 minutes max.) (at 12 Vdc, 85˚C) 35 A max. (2 minutes max.) (at 12 Vdc, 85˚C} Approx. 5 ms max. (at 12 Vdc, excluding bounce) initial Approx. 2 ms max. (at 12 Vdc, excluding bounce) initial, without diode 0.64 W/0.8 W/1.15 W (at 12 Vdc) 100 MΩ min. (at 500 Vdc) initial 500 Vdc min. (for 1 minute) initial 98 m/s2 [Approx. 10 G] min. (misoperating) 10 to 300 Hz, 43 m/s2 [Approx. 4.4 G] min. (misoperating) –40˚C to +85˚C (–40˚F to +185 ˚F) 50˚C/W (contact carrying current 0 A) 1 x 106 operations 1 x 105 operations (at 14 Vdc, Motor Load 25 A/7 A) Approx. 18 gr. 3 EP2 Series FEATURES ● Twin relay for motor and solenoid reversible control ● 50% Iess relay space than conventional two relays ● Contact switching current of 25 A max. ● High performance and productivity by unique symmetrical structure ● Flux tight housing ● Delivered in stick-tube for automatic insertion machine ● Washable type available PART NUMBERS AND COIL RATINGS Part Numbers H Bridge Type Separate Type Nominal Voltage (Vdc) Coil Resistance (Ω ± 10%) Nominal Current (mA) at 25˚C (77˚F) Must Must Nominal Operate Voltage Release Voltage Operate Power (Vdc max.) (Vdc min.) (W) EP2-3N1S EP2-3N1ST 12 225 53.3 6.5 0.9 0.64 EP2-3N2S EP2-3N2ST 12 225 53.3 7.0 0.9 0.64 EP2-3N3S EP2-3N3ST 12 225 53.3 7.5 0.9 0.64 EP2-4N3S EP2-4N3ST 12 300 40.0 7.5 0.9 0.48 EP2-4N4S EP2-4N4ST 12 300 40.0 8.0 0.9 0.48 EP2-4N5S EP2-4N5ST 12 300 40.0 8.5 0.9 0.48 ■ PART NUMBER SYSTEM EP2-B3L1ST Type 4 Nil : Standard type B : High current type Carrying Current Capacity 3 : 225 Ω ± 10% 4 : 300 Ω ± 10% Coil Resistance (at 25°C) L : Silver oxide complex alloy type I N : Silver oxide complex alloy type II G : Silver oxide complex alloy (High current type) Contact Material Wiring Nil : H bridge type T : Sparate type Enclosure Nil : Unsealed S : Ssaled Operate Voltage (at 25°C) 1: 2: 3: 4: 5: 6.5 V max. 7.0 V max. 7.5 V max. 8.0 V max. 8.5 V max. mm (inch) [Separate (T) Type] 16.2 ± 0.5 (0.64) 2-1.3 × 1.3 (0.05 × 0.05) 4- φ 0.6 (φ 0.02) 8.0 10.1 4-0.5 × 1.1 (0.02 × 0.04) (0.14) 3.5 (0.31) (0.4) 5.45 (0.21) 3.1 (0.12) 6.4 (0.25) 5.45 (0.21) 5.45 (0.21) 6.4 (0.25) (0.14) 16.0 ± 0.5 (0.63) 0.5(0.02) 3.5 ■ PCB PAD LAYOUT and SCHEMATICS 2-1.3 × 1.3 (0.05 × 0.05) 4- φ 0.6 (φ 0.02) 8.0 10.1 (bottom view) mm (inch) [H Bridge Type] 4-φ1.1 +0.1 –0 (φ 0.043) (0.4) (0.31) 35 (0.14) 16.0 ± 0.5 (0.63) 2.2 (0.09) 5.45 (0.21) (0.14) 2.2(0.09) 3.5 (0.14) 3.5 (0.31) (0.4) 10.1 8.0 2-0.5 × 1.1 (0.02 × 0.04) 2.2 (0.09) 3.1(0.12) (0.4) (0.31) 3.1(0.12) 10.1 8.0 16.2 ± 0.5 (0.64) 23.8 ± 0.5 (0.94) 35 (0.14) 0.5(0.02) 23.8 ± 0.5 (0.94) [Separate (T) Type] 4-φ1.1 +0.1 –0 (φ 0.043) 2-φ1.5 +0.1 –0 (φ 0.059) 2 1 4-φ1.5 +0.1 –0 (φ 0.059) 2 3 4 3 9 1 4 10 6 6 8 2-φ1.9 +0.1 –0 (φ 0.075) 56 (Side A) 7 (Side B) 2-φ1.9 +0.1 –0 (φ 0.075) (Unit A) SPECIFICATIONS Contact Form Contact Material Contact Resistance Contact Switching Voltage Contact Switching Current Contact Carrying Current Standard High Operate Time Release Time Nominal Operate Power Insulation Resistance Breakdown Voltage Shock Resistance Vibration Resistance Ambient Temperature Coil Temperature Rise Weight 8 7 (Unit B) at 25˚C (77˚F) Items Life Expectancy 6.4 (0.25) [H Bridge Type] 2.2 (0.09) ■ DIMENSIONS Mechanical Electrical Specification 1 form C × 2 [H Bridge Type & Separate Type] Silver oxide complex alloy (Special types available) 50 mΩ max. (measured at 7 A) initial 30 Vdc max. 5 Vdc min. 25 A max. (at 16 Vdc) 1 A min. 20 A max. (2 minutes max.) (at 12 Vdc, 85˚C) 25 A max. (2 minutes max.) (at 12 Vdc, 85˚C) Approx. 5 ms max. (at 12 Vdc, excluding bounce) initial Approx. 2 ms max. (at 12 Vdc, excluding bounce) initial, without diode 0.48 W/0.64 W (at 12 Vdc) 100 MΩ min. (at 500 Vdc) initial 500 Vdc min. (for 1 minute) initial 98 m/s2 [Approx. 10 G] min. (misoperating) 10 to 300 Hz, 43 m/s2 [Approx. 4.4 G] min. (misoperating) –40˚C to +85˚C (–40˚ F to +185˚F) 50˚C/ W (contact carrying current 0 A) 1 x 106 operations 1 x 105 operations (at 14 Vdc, Motor Load 20 A/3 A) Approx. 15 gr. 5 EP1 Series FEATURES ● 33% Iess relay space than conventional relays (MR301 Series) ● High performance & productivity by unique structure ● Flux tight housing ● Delivered in stick-tube for automatic insertion machine ● Washable type available PART NUMBERS AND COIL RATINGS Part Numbers at 25˚C (77˚F) Standard Type High Current Type Nominal Voltage (Vdc) Coil Resistance (Ω ± 10%) Nominal Current (mA) Must Must Nominal Operate Voltage Release Voltage Operate Power (Vdc max.) (Vdc min.) (W) EP1-3L1 EP1-B3G1 12 225 53.3 6.5 0.9 0.64 EP1-3L2 EP1-B3G2 12 225 53.3 7.0 0.9 0.64 EP1-3L3 EP1-B3G3 12 225 53.3 7.5 0.9 0.64 EP1-4L3 EP1-B4G3 12 300 40.0 7.5 0.9 0.48 EP1-4L4 EP1-B4G4 12 300 40.0 8.0 0.9 0.48 EP1-4L5 EP1-B4G5 12 300 40.0 8.5 0.9 0.48 ■ PART NUMBER SYSTEM EP1-B3L1S Type Enclosure Null : Unsealed S : Sealed Nulll : Standard B : High current Load Current Capability Operate Voltage (at 25°C) 1: 2: 3: 4: 5: 3 : 225 Ω ± 10% 4 : 300 Ω ± 10% Coil Resistance (at 25°C) Contact Material L : Silver oxide complex alloy (for Standard) 6.5 V max. 7.0 V max. 7.5 V max. 8.0 V max. 8.5 V max. G : Silver oxide complex alloy (for High current) 6 ■ DIMENSIONS mm (inch) (0.63) 2.65 (0.1) 4.5 3.5 3.1 6.4 1.3 × 1.3 (0.05 × 0.05) (0.25) (0.12) (0.18) (0.14) 2.2 (0.21) (0.09) 5.45 (0.14) 0.5 (0.02) 10.1 (0.4) 2- φ 0.6 ( φ 0.02) 16.0 ± 0.5 16.2 ± 0.5 (0.64) 3.5 14.6 ± 0.5 (0.59) 2-0.5 × 1.1 (0.02 × 0.04) ■ PCB PAD LAYOUT and SCHEMATICS 2-φ1.1 +0.1 –0 (φ 0.043) 2-φ1.5 +0.1 –0 (φ 0.059) 2 1 (bottom view) mm (inch) 3 4 φ 1.9 +0.1 –0 (φ 0.075) 5 SPECIFICATIONS at 25˚C (77˚F) Items Contact Form Contact Material Contact Resistance Contact Switching Voltage Contact Switching Current Standard High Operate Time (Excluding bounce) Release Time (Excluding bounce) Nominal Operate Power Insulation Resistance Breakdown Voltage Shock Resistance Vibration Resistance Coil Temperature Rise Ambient Temperature Mechanical Life Expectancy Electrical Weight Contact Carrying Current Specification 1 form C Silver oxide complex alloy 50 MΩ max. (measured at 7 A) initial 30 Vdc max. 5 Vdc min. 25 A max. (at 16 Vdc) 1 A min. 25 A max. (2 minutes max.) (at 12 Vdc, 85˚C) 30 A max. (2 minutes max.) (at 12 Vdc, 85˚C) Approx. 5 ms max. (at 12 Vdc) initial Approx. 2 ms max. (at 12 Vdc) initial, without diode 0.48 W/0.64 W (at 12 Vdc) 100 MΩ min. (at 500 Vdc) initial 500 Vdc min. (for 1 minute) initial 98 m/s2 [Approx. 10 G] min. (misoperating) 10 to 300 Hz, 43 m/s2 [Approx. 4.4 G] min. (misoperating) 50˚C/ W (Contact Carrying Current: 0 A) –40 to +85˚C (–40 to +185˚F) 106 operations 105 operations (at 14 Vdc, Motor Load 20 A/3 A) Approx. 8 g 7 MR301 Series FEATURES ● Medium load applications such as interval wipers and stereo ● Delivered in stick-tube for automatic insertion machine ● Flux tight housing ● Washable type available ● High standoff type (0.8 mm) available (“L” suffix) PART NUMBERS AND COIL RATINGS 10 A Type 15 A Type Nominal Voltage (Vdc) MR301-6HSL MR301-6ESL 6 Part Numbers 5 A Type MR301-6SL at 25˚C (77˚F) Must Must Nominal Operate Voltage Release Voltage Operate Power (Vdc max.) (Vdc min.) (W) Coil Resistance (Ω ± 10%) Nominal Current (mA) 100 60 4.2 0.6 0.36 MR301-9SL MR301-9HSL MR301-9ESL 9 225 40 6.3 0.9 0.36 MR301-N39L MR301-N40L MR301-N40EL 12 320 38 8.0 1.2 0.45 MR301-12SL MR301-12HSL MR301-12ESL 12 400 30 8.4 1.2 0.36 DIMENSIONS mm (inch) 2.3 (0.09) PCB PAD LAYOUT mm (inch) (BOTTOM VIEW) 3 12 (0.47) 5 0.3 (0.01) 'L:0.8" 'L:17.0Max." 3.5 (0.14) 'L:3.0" 16.7(0.66)Max. 12.2 2 (0.48) (0.08) SCHEMATIC (BOTTOM VIEW) 16.5 (0.65) Max. 22.5 (0.89) Max. 1 4 2 φ 1.8 (φ 0.07) 2.3 (0.09) 12 (0.47) 12.2 (0.08) 2 (0.08) φ 1.6 (φ 0.06) ■ NUMBERING SYSTEM 1. MR301-6HUSL Type 6 : 6 V, DC 9 : 9 V, DC 12 : 12 V, DC Nil : 16.7 mm max. height (including 0.3 mm stand off) Color – Black L : 17.0 mm max. height (including 0.8 mm stand off) Color – Gray Enclosure Nil : Unsealed S : Sealed Recognition Nil : Standard type U : UL, CSA recognized type Nominal Coil voltage (at 25°C) Contacts Hil : 5 A type H : 10 A type E : 15 A type (E type is not recognized by UL and CSA) 2. Type Custom code 8 Cover MR301-N ∗ E L Cover The same to item No.1 Contacts Nil : 5 A or 10 A type E : 15 A type SPECIFICATIONS at 25˚C (77˚F) Items 5 A Type 10/15 A Type Contact Form 1 form C Contact Material Silver nickel alloy Silver oxide complex alloy Contact Resistance 100 mΩ max. (measured at 0.5 A) initial 100 mΩ max. (measured at 2 A) initial Contact Switching Voltage 30 Vdc max. 5 Vdc min. Contact Switching Current 5 A max. (at 16 Vdc) 0.1 A min. Contact Carrying Current 20 A max. (at 12 Vdc) Operate Time Approx. 5 ms max. (at I 2 Vdc, excluding bounce) initial Release Time Approx. 2 ms max. (at I 2 Vdc, excluding bounce) initial, without diode Nominal Operate Power 0.36 W/0.45 W (Nominal Voltage) Insulation Resistance 100 MΩ min. (at 500 Vdc) initial Breakdown Voltage 500 Vdc min. (for 1 minute) initial Shock Resistance 98 m/s2 [Approx. 10 G] min. (misoperating) Vibration Resistance 10 to 300 Hz, 43 m/s2 [Approx. 4.4 G] min. (misoperating) Ambient Temperature –40˚C to +85˚C (–40˚F to +185˚F) Coil Temperature Rise 50˚C/ W (contact carrying current 0 A) Life Expectancy Weight 15/20 A max. (at 16 vdc) Mechanical 1 x 106 operations Electrical 1 x 105 operations (at 14 Vdc, Motor Load 20 A/3 A) (E-Contact) 1 A min. Approx. 13 gr 9 ■ NOTICE (1) Capacitive load If the load is capacitive, an inrush current to charge the load with poses a problem. In this case, a current-limiting resistor or surge suppressor coil is connected in series to the contacts to suppress the peak current. (2) Clinching terminals To secure the relay temporarily to a printed circuit board for soldering, particular terminals are allowed to be clinched within a particular angle. other terminals, never clinched. The terminal numbers and the angle for clinching of each series are as follows. 1) No.4 and no.5 terminals to 45° maximum for H bridge type of EN2 and EP2 2) No.5 and no.9 terminals to 45° maximum for separate type of EN2 and EP2 3) No.4 and no.5 terminals to 45° maximum for EP1 4) No.1, 4 and no.5 terminals to 45° maximum for MR301 (3) Drive circuit Since the coil of a relay has an inductive impedance, a counter electromotive force is generated when the circuit is opened. This voltage may damage the relay driver IC. Therefore, a diode is connected in parallel with the coil, as shown in figure 1. Figure 1 (4) Typical application for EN2/EP2 relays (H bridge type) MOTOR STOP FORWARD REVERSE M Tr1 Tr2 100 ms min. 10 Tr1 off on off Tr2 off off on na lift er Anten id pro tectio n con trol Car b ody h eight contro l Car sk ter Wind ow lif al wip er Autodoor m irror Autom otive teleph one Interv Centr al Auto- door interlo seat p ositio ck ning Passiv e sea t belt contro l Slidin g roo f cont rol Trans missio n con trol Car Air co stereo nditio ner Autospeed contro l drive APPLICATIONS 11 No part of this document may be copied in any form or by any means without the prior written consent of NEC Corporation. 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 of others.