Document
DATA S HE E T
AUTOMOTIVE RELAYS
EP2S/EP1S SERIES
LOW SOUND PRESSURE
DESCRIPTION
The NEC EP2S / EP1S 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 sound pressure level of EP2S / EP1S series is 57 dBA nominal when the relay operates, and 49 dBA nominal when the relay releases.
FEATURES
™ Less sound pressure (–10 dB at “operate” and –3 dB at “release” compared with EP2 / EP1) ™ For motor and solenoid reversible control ™ High performance and productivity by unique structure ™ Flux tight housing
APPLICATION
™ Power window control ™ Electrical door lock ™ Wiper system
EP2S SERIES
EP1S SERIES
Document No. ER0131EJ1V0DS00 Date Published April 1996 M Printed in Japan
©
1996
EP2S / EP1S SERIES
SCHEMATIC (BOTTOM VIEW) EP2S SERIES
2 4 1 3 9 4 1
EP1S SERIES
2 3 4
2 1
3
8 5 6 7
10 5 6 7
8 5
[Unit A]
[Unit B]
[Unit A]
[Unit B]
[H Bridge Type]
[Separate Type]
DIMENSIONS mm (inch) EP2S SERIES
H Bridge Type
Vent hole
JAPAN
Separate Type
Separate type discrimination mark Vent hole
JAPAN
φ 2(0.079)
Date code Part number
Part number
EP2S-3L1
0G3 24
Date code
EP2S-3L1T
0G3 24
23.8 + – 0.5 (0.94) 0.5(0.02) 16.0 + – 0.5 (0.63)
16.2 + – 0.5 (0.64)
23.8 + – 0.5 (0.94) 0.5(0.02) 16.0 + – 0.5
16.2 + – 0.5 (0.64)
3.5
(0.14)
3.5 10.1 8.0 5.45 (0.21) (0.21) (0.4) (0.31) 3.5 (0.14) (0.32) (0.32)
10.1 8.0 5.45 (0.21)
(0.4) (0.31) 3.5 (0.14)
2-0.5×1.1(0.02×0.04) 3.1 (0.12)
4-0.5×1.1(0.02×0.04)
2.2 (0.09) 3.1 (0.12) 5.45 (0.21) 6.4 (0.25)
5.45 (0.09) (0.21) 6.4 (0.25)
(0.14)
(0.63)
2.2 (0.09)
3.1 (0.12) 2.2 (0.09)
(0.14) 3.5 (0.31) (0.4) 11.9 ∗ (0.47)
8.0 10.1 11.9 ∗ (0.47)
2-1.3 ×1.3(0.05× 0.05) 4- φ 0.6( φ 0.22) ∗ for reference
(0.14) 3.5 (0.31) (0.4) 11.9 ∗ (0.47)
8.0 10.1 11.9 ∗ (0.47)
2-1.3 ×1.3(0.05× 0.05) 4- φ 0.6( φ 0.22) ∗ for reference
2
(0.32) (0.32)
8.1∗
8.1∗
8.1∗
8.1∗
2.2
6.4
EP2S / EP1S SERIES
EP1S SERIES
JAPAN
Vent hole
Date code Part number
EP1S-B3G1
4A 1 22
14.6 + – 0.5 (0.58)
16.2 + – 0.5 (0.63)
16.0 + – 0.5 3.5
0.5(0.02) 10.1(0.4) 8.0(0.31) 2- φ 0.6 ( φ 0.02) 3.5 (0.14) 3.1 (0.12) (0.21) 2.2 (0.09) 5.45 (0.25) 6.4
2.65∗ (0.1)
(0.14)
(0.63)
1.3×1.3 (1.5×1.5) 2-0.5×1.1 (0.02×0.02)
∗ for reference
PCB PAD LAYOUT mm (inch) (BOTTOM VIEW)
EP2S SERIES
4 - φ 1.1 +0.1 – 0 ( φ 0.043) 2 - φ 1.5 +0.1 – 0 ( φ 0.059) 4 - φ 1.1 +0.1 – 0 ( φ 0.043) 4 - φ 1.5 +0.1 – 0 ( φ 0.059)
EP1S SERIES
2 - φ 1.1 +0.1 –0 ( φ 0.043) 2 - φ 1.5 +0.1 –0 ( φ 0.059)
φ 1.9 +0.1 –0 ( φ 0.075)
2 - φ 1.9 +0.1 – 0 ( φ 0.075) [H Bridge Type] [Separate Type] 2 - φ 1.9 +0.1 – 0 ( φ 0.075)
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EP2S / EP1S SERIES
SPECIFICATIONS
Items Contact Form Contact Material Contact Resistance Contact Switching Voltage Contact Switching Current EP2S 1 form C× 2 (H bridge type and separate type) 1 form C Silver oxide complex alloy 50 mΩ max. (measured at 7 A) initial 16 Vdc max. 25 A max. 20 A / regular type (2 minutes max. 12 Vdc at 85˚C) 25 A / high carrying current type (2 minutes max. 12 Vdc at 85˚C) 25 A / regular type (2 minutes max. 12 Vdc at 85˚C) 30 A / high carrying current type (2 minutes max. 12 Vdc at 85˚C) EP1S
at 25 ˚C (77 ˚F)
Contact Carrying Current
Operate Time Release Time Normal Operate Power Insulation Resistance Breakdown Voltage Shock Resistance Vibration Resistance Ambient Temperature Coil Temperature Rise Mechanical
Approx. 5 ms (at 12 Vdc excluding bounce) initial Approx. 2 ms (at 12 Vdc excluding bounce) initial 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 (without contact carrying current) 1×10 6 operations Contact 1×10 5 operations (at 14 Vdc, Motor Load 25 A / 7 A) G Electrical Contact 1×10 5 operations (at 14 Vdc, Motor Load 20 A / 3 A) L or N Approx. 15 gr Approx. 8 gr
Life Expectancy
Weight
SOUND PRESSURE LEVEL (for reference)
Sound Pressure level Fast (F) ∗ Operate (at 12 Vdc drive with diode) Relese (at 12 Vdc drive with diode) 57 dBA nominal 49 dBA nominal
∗ Refer to the measuring condition in the figure of sound pressure level distribution on page 7.
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EP2S / EP1S SERIES
COIL RATING
EP2S SERIES
Part Number H Bridge Type EP2S-3L1 EP2S-3L2 EP2S-3L3 EP2S-4L3 EP2S-4L4 EP2S-4L5 Separate Type EP2S-3L1T EP2S-3L2T EP2S-3L3T EP2S-4L3T EP2S-4L4T EP2S-4L5T Nominal Voltage (Vdc) 12 12 12 12 12 12 Coil Resistance ( Ω ±10 %) 225 225 225 300 300 300 Must Operate Voltage (Vdc max.) 6.5 7.0 7.5 7.5 8.0 8.5 Must Release Voltage (Vdc min.) 0.9 0.9 0.9 0.9 0.9 0.9 at 25 ˚C (77 ˚F) Nominal Operate Power (W) 0.64 0.64 0.64 0.48 0.48 0.48
∗ High carrying current type available
EP1S SERIES
Part Number Regular Type EP1S-3L1 EP1S-3L2 EP1S-3L3 EP1S-4L3 EP1S-4L4 EP1S-4L5 High Carrying Current Type EP1S-B3G1 EP1S-B3G2 EP1S-B3G3 EP1S-B4G3 EP1S-B4G4 EP1S-B4G5 Nominal Voltage (Vdc) 1.