NEC EP1S-4N4T Automotive relays low sound pressure Datasheet

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
Document No. ER0131EJ1V0DS00
Date Published April 1996 M
Printed in Japan
EP1S SERIES
©
1996
EP2S / EP1S SERIES
SCHEMATIC (BOTTOM VIEW)
EP2S SERIES
2
EP1S SERIES
2
3
1
1
4
4
8
5 6
[Unit A]
2
3 9
1
10
7
[Unit A]
[H Bridge Type]
4
8
5 6
[Unit B]
3
7
5
[Unit B]
[Separate Type]
DIMENSIONS mm (inch)
EP2S SERIES
Separate Type
Separate type
discrimination mark
φ 2(0.079)
(0.14) 3.5
(0.31)
(0.4)
8.0
10.1
11.9 ∗
11.9 ∗
(0.47)
(0.47)
10.1
8.0
4- φ 0.6( φ 0.22)
∗ for reference
5.45 (0.21)
4-0.5×1.1(0.02×0.04)
(0.14) 3.5
(0.31)
(0.4)
8.0
10.1
11.9 ∗
11.9 ∗
(0.47)
(0.47)
8.1∗
8.1∗
(0.32) (0.32)
2.2
(0.09)
3.1
(0.12)
5.45 (0.21)
6.4 (0.25)
3.5
(0.14)
3.1
(0.12)
2.2
(0.09)
(0.21)
6.4
(0.32) (0.32)
8.1∗
8.1∗
2-1.3×1.3(0.05×0.05)
(0.4)
(0.31)
(0.63)
16.2 +
– 0.5
(0.64)
0.5(0.02)
(0.14)
5.45 (0.09)
(0.21)
6.4 (0.25)
2.2
(0.09)
5.45 (0.21)
3.5
(0.14)
23.8 +
– 0.5
(0.94)
2-0.5×1.1(0.02×0.04)
2.2
(0.4)
(0.31)
0G3 24
16.0 +
– 0.5
(0.63)
3.5
0.5(0.02)
16.2 +
– 0.5
(0.64)
3.1 (0.12)
10.1
8.0
Date code
EP2S-3L1T
23.8 +
– 0.5
(0.94)
2
Part number
Date code
0G3 24
(0.14)
Part number
EP2S-3L1
Vent hole
JAPAN
16.0 +
– 0.5
Vent hole
JAPAN
3.5
H Bridge Type
2-1.3×1.3(0.05×0.05)
4- φ 0.6( φ 0.22)
∗ for reference
EP2S / EP1S SERIES
EP1S SERIES
JAPAN
Vent hole
Date code
EP1S-B3G1
Part number
4A 1 22
16.2 +
– 0.5
(0.63)
16.0 +
– 0.5
(0.63)
3.5
(0.14)
0.5(0.02)
14.6 +
– 0.5
(0.58)
2.65∗ (0.1)
10.1(0.4)
8.0(0.31)
3.5
6.4
1.3×1.3
(1.5×1.5)
(0.25)
3.1 (0.12)
(0.14)
(0.21)
2.2
(0.09)
5.45
2- φ 0.6
( φ 0.02)
∗ for reference
2-0.5×1.1
(0.02×0.02)
PCB PAD LAYOUT mm (inch) (BOTTOM VIEW)
EP2S SERIES
4 - φ 1.1 +0.1
– 0 ( φ 0.043)
EP1S SERIES
2 - φ 1.5 +0.1
– 0 ( φ 0.059)
4 - φ 1.1 +0.1
– 0 ( φ 0.043)
2 - φ 1.1 +0.1
–0
( φ 0.043)
2 - φ 1.5 +0.1
–0
( φ 0.059)
4 - 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)
2 - φ 1.9 +0.1
– 0 ( φ 0.075)
[H Bridge Type]
[Separate Type]
3
EP2S / EP1S SERIES
SPECIFICATIONS
at 25 ˚C (77 ˚F)
Items
EP2S
EP1S
Contact Form
1 form C×2 (H bridge type and separate type) 1 form C
Contact Material
Silver oxide complex alloy
Contact Resistance
50 mΩ max. (measured at 7 A) initial
Contact Switching Voltage
16 Vdc max.
Contact Switching Current
25 A max.
Contact Carrying Current
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)
Operate Time
Approx. 5 ms (at 12 Vdc excluding bounce) initial
Release Time
Approx. 2 ms (at 12 Vdc excluding bounce) initial
Normal Operate Power
0.64 W (at 12 Vdc)
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 (without contact carrying current)
Mechanical
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)
1×10 6 operations
Contact 1×10 5 operations (at 14 Vdc, Motor Load 25 A / 7 A)
G
Life Expectancy
Electrical
Contact 1×10 5 operations (at 14 Vdc, Motor Load 20 A / 3 A)
L or N
Weight
Approx. 15 gr
Approx. 8 gr
SOUND PRESSURE LEVEL (for reference)
Sound Pressure level Fast (F) ∗
Operate (at 12 Vdc drive with diode)
57 dBA nominal
Relese (at 12 Vdc drive with diode)
49 dBA nominal
∗ Refer to the measuring condition in the figure of
sound pressure level distribution on page 7.
4
EP2S / EP1S SERIES
COIL RATING
EP2S SERIES
at 25 ˚C (77 ˚F)
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)
Coil
Resistance
(Ω ±10 %)
Must
Operate Voltage
(Vdc max.)
Must
Release Voltage
(Vdc min.)
Nominal
Operate Power
(W)
12
12
12
12
12
12
225
225
225
300
300
300
6.5
7.0
7.5
7.5
8.0
8.5
0.9
0.9
0.9
0.9
0.9
0.9
0.64
0.64
0.64
0.48
0.48
0.48
Nominal
Voltage
(Vdc)
Coil
Resistance
(Ω ±10 %)
Must
Operate Voltage
(Vdc max.)
Must
Release Voltage
(Vdc min.)
Nominal
Operate Power
(W)
12
12
12
12
12
12
225
225
225
300
300
300
6.5
7.0
7.5
7.5
8.0
8.5
0.9
0.9
0.9
0.9
0.9
0.9
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
5
EP2S / EP1S SERIES
NUMBERING SYSTEM
EP2S
–
B
3
L
1
S
T
Nil : H Bridge Type
Wiring
T : Separate Type
Enclosure
Nil : Unsealed (Standard type)
T : Sealed
1 : 6.5 V max.
2 : 7.0 V max.
Operate Voltage
3 : 7.5 V max.
(at 25˚C)
4 : 8.0 V max.
5 : 8.5 V max.
L : Silver oxide complex alloy, Type I
Contact Material
N : Silver oxide complex alloy, Type II
G : Silver oxide complex alloy, Type III
Coil Resistance
Carrying Current
3 : 225 Ω ±10%
4 : 300 Ω ±10%
Nil : Regular type
B : high carrying current type
EP2S
Type
EP1S
TYPICAL APPLICATION (H Bridge Type)
MOTOR
M
16 V
Tr1
STOP
Tr1
Tr2
off
off
FORWARD
on
off
REVERSE
off
on
Tr2
Tr1
Tr2
100 ms min.
It is necessary to take more than 100 msec intervals for on / off timing between driving Tr1 and Tr2. If the interval
is less than 100 msec, an excessive current happen to flow to the relay contacts.
6
EP2S / EP1S SERIES
TECHNICAL DATA
Coil Temperature (EP2S-3L1)
Coil Temperature Rise (˚C)
Coil Temperature Rise (˚C)
150
Vcoil = 12 V, IC = 25 A
Vcoil = 7.5 V, IC = 25 A
100
50
Vcoil = 12 V, IC = 0 A
100
50
I C = 0A
Vcoil = 7.5 V, IC = 0 A
10
0
20
0
30
0.5
Energized Time (minutes)
1.5
2.0
Applied Power (W)
Operate Time (EP2S-3L1)
Release time (EP2S-3L1)
10
Release Time (ms)
10
Operate Time (ms)
1.0
Mean
5
With Diode
5
Mean
Without Diode
0
0.5
1.0
0
1.5
0.5
Applied Power (W)
1.0
1.5
Applied Power (W)
Distribution of Sound Pressure Level (for reference)
50
50
EP2S – 3L1
n = 80
40
Frequency (%)
Frequency (%)
40
30
20
10
0
EP2–3L1
n = 80
30
20
Release
Operate
10
40
50
60
Sound Pressure Level (dBA)
70
0
40
50
60
70
Sound Pressure Level (dBA)
Measuring Condition
Measuring Equipment : Precision Sound Meter
Detector-indicator Characteristic : Fast (F) specified in IEC 651
Relay Drive : 12 Vdc (Diode clamped)
Distance between Microphone and Sample : 50 mm
Background Noise : less than 35 dB (A)
(A) : Frequency Weighting Characteristic specified in IEC 651
7
EP2S / EP1S SERIES
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 others.
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