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
q
q
q
q
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
q
q
q
PART NUMBERS AND COIL RATINGS
Part Numbers
H Bridge Type Separate Type
EN2-1N1S
EN2-1N2S
EN2-2N3S
EN2-2N4S
EN2-3N4S
EN2-3N5S
EN2-1N1ST
EN2-1N2ST
EN2-2N3ST
EN2-2N4ST
EN2-3N4ST
EN2-3N5ST
Nominal
Voltage
(Vdc)
12
12
12
12
12
12
Coil
Resistance
(Ω
±
10%)
125
125
180
180
250
250
Nominal
Current
(mA)
96.0
96.0
67.0
67.0
53.0
53.0
at 25˚C (77˚F)
Must
Must
Nominal
Operate Voltage Release Voltage Operate Power
(Vdc max.)
(Vdc min.)
(W)
6.5
7.0
7.5
8.0
8.0
8.5
0.6
0.6
0.6
0.6
0.9
0.9
1.15
1.15
0.8
0.8
0.64
0.64
s
PART NUMBER SYSTEM
EN2-B1N1ST
Type
Nil : Standard type
B : High current type
1 : 125
Ω ±
10%
2 : 180
Ω ±
10%
3 : 225
Ω ±
10%
N : Silver oxide complex alloy type I
H : Silver oxide complex alloy type II
Carrying Current Capacity
Coil Resistance
(at 25°C)
Contact Material
Wiring
Enclosure
Operate Voltage
(at 25°C)
Nil : H bridge type
T : Sparate type
Nil : Unsealed
S : Ssaled
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.
2
s
DIMENSIONS
mm (inch)
[H Bridge Type]
[Separate (T) Type]
33.0
±
0.5
(1.3)
16.0
±
0.5
(0.63)
33.0
±
0.5
(1.3)
0.6(0.02)
16.0
±
0.5
(0.63)
16.0
±
0.5
(0.63)
0.6(0.02)
35
(0.14)
16.0
±
0.5
(0.63)
5.45 (0.21)
2.7
(0.11)
5.45
(0.21)
5.45 (0.21)
6.4 (0.25)
(0.56)
14.1
10.75 (0.42)
5.75 (0.23)
2-0.5
×
1.1
(0.02
×
0.04)
(0.56)
14.1
10.75 (0.42)
5.75 (0.23)
4-0.5
×
1.1 (0.02
×
0.04)
2.7
(0.11)
3.1
5.45 (0.12)
(0.21)
6.4 (0.25)
3.1
(0.12)
2.7
(0.11)
6.4 (0.25)
(0.23) 5.75
(0.42) 10.75
(0.56)
14.1
2-1.3
×
1.3 (0.02
×
0.05)
4-
φ
0.6 (
φ
0.02)
3.1
(0.12)
2.7
(0.11)
(0.23) 5.75
(0.42) 10.75
(0.56)
14.1
2-1.3
×
1.3 (0.02
×
0.05)
4-
φ
0.6 (
φ
0.02)
s
PCB PAD LAYOUT and SCHEMATICS
[H Bridge Type]
4-
φ
1.1
+0.1
(
φ
0.043)
–0
2-
φ
1.5
+0.1
(
φ
0.059)
–0
2
1
3
4
(bottom view) mm (inch)
[Separate (T) Type]
4-
φ
1.1
+0.1
(
φ
0.043)
–0
4-
φ
1.5
+0.1
(
φ
0.059)
–0
2
1
8
5 6
7
(Side B)
35
(0.14)
3 9
4
10
5 6
8
7
(Unit A)
2-
φ
1.9
+0.1
–0
(
φ
0.075)
(Side A)
2-
φ
1.9
+0.1
–0
(
φ
0.075)
(Unit B)
SPECIFICATIONS
Items
Contact Form
Contact Material
Contact Resistance
Contact Switching Voltage
Contact Switching Current
Contact Carrying Current
Operate Time
Release Time
Nominal Operate Power
Insulation Resistance
Breakdown Voltage
Shock Resistance
Vibration Resistance
Ambient Temperature
Coil Temperature Rise
Life Expectancy
Weight
Mechanical
Electrical
Standard
High
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/s
2
[Approx. 10 G] min. (misoperating)
10 to 300 Hz, 43 m/s
2
[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 10
6
operations
1 x 10
5
operations (at 14 Vdc, Motor Load 25 A/7 A)
Approx. 18 gr.
at 25˚C (77˚F)
3
EP2 Series
FEATURES
q
q
q
q
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
q
q
q
PART NUMBERS AND COIL RATINGS
Part Numbers
H Bridge Type Separate Type
EP2-3N1S
EP2-3N2S
EP2-3N3S
EP2-4N3S
EP2-4N4S
EP2-4N5S
EP2-3N1ST
EP2-3N2ST
EP2-3N3ST
EP2-4N3ST
EP2-4N4ST
EP2-4N5ST
Nominal
Voltage
(Vdc)
12
12
12
12
12
12
Coil
Resistance
(Ω
±
10%)
225
225
225
300
300
300
Nominal
Current
(mA)
53.3
53.3
53.3
40.0
40.0
40.0
at 25˚C (77˚F)
Must
Must
Nominal
Operate Voltage Release Voltage Operate Power
(Vdc max.)
(Vdc min.)
(W)
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
s
PART NUMBER SYSTEM
EP2-B3L1ST
Type
Nil : Standard type
B : High current type
3 : 225
Ω ±
10%
4 : 300
Ω ±
10%
L : Silver oxide complex alloy type I
N : Silver oxide complex alloy type II
G : Silver oxide complex alloy
(High current type)
Carrying Current Capacity
Coil Resistance
(at 25°C)
Contact Material
Wiring
Enclosure
Operate Voltage
(at 25°C)
Nil : H bridge type
T : Sparate type
Nil : Unsealed
S : Ssaled
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.
4
s
DIMENSIONS
mm (inch)
[H Bridge Type]
23.8
±
0.5
(0.94)
16.2
±
0.5
(0.64)
[Separate (T) Type]
23.8
±
0.5
(0.94)
0.5(0.02)
16.0
±
0.5
(0.63)
35
(0.14)
2
1
16.2
±
0.5
(0.64)
0.5(0.02)
35
(0.14)
16.0
±
0.5
(0.63)
10.1
8.0
(0.4)
(0.31)
(0.14)
2-0.5
×
1.1 (0.02
×
0.04)
10.1
8.0
(0.4)
(0.31)
(0.14)
4-0.5
×
1.1 (0.02
×
0.04)
2.2
(0.09)
3.1(0.12)
3.1(0.12)
2.2(0.09)
3.5
3.5
5.45 (0.21)
3.1
(0.12)
2.2
(0.09)
2.2
(0.09)
(0.14) 3.5
(0.31)
(0.4)
8.0
10.1
2-1.3
×
1.3
(0.05
×
0.05)
4-
φ
0.6
(
φ
0.02)
(0.14) 3.5
(0.31)
(0.4)
8.0
10.1
2-1.3
×
1.3
(0.05
×
0.05)
4-
φ
0.6
(
φ
0.02)
s
PCB PAD LAYOUT and SCHEMATICS
[H Bridge Type]
(bottom view) mm (inch)
[Separate (T) Type]
4-
φ
1.1
+0.1
–0
(
φ
0.043)
2
1
3
4
8
4-
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)
3 9
4
10
6 6
(Unit A)
8
7
2-
φ
1.9
(
φ
0.075)
+0.1
–0
56
(Side A)
7
(Side B)
2-
φ
1.9
+0.1
–0
(
φ
0.075)
6.4 (0.25)
(Unit B)
5.45 (0.21)
6.4 (0.25)
SPECIFICATIONS
Items
Contact Form
Contact Material
Contact Resistance
Contact Switching Voltage
Contact Switching Current
Contact Carrying Current
Operate Time
Release Time
Nominal Operate Power
Insulation Resistance
Breakdown Voltage
Shock Resistance
Vibration Resistance
Ambient Temperature
Coil Temperature Rise
Life Expectancy
Weight
Mechanical
Electrical
Standard
High
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/s
2
[Approx. 10 G] min. (misoperating)
10 to 300 Hz, 43 m/s
2
[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 10
6
operations
1 x 10
5
operations (at 14 Vdc, Motor Load 20 A/3 A)
Approx. 15 gr.
5.45
(0.21)
6.4
(0.25)
5.45
(0.21)
at 25˚C (77˚F)
5
Microcontroller MCU
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