AUTOMOTIVE RELAYS
EQ1 SERIES
FEATURES
• Same pin-layout as conventional relay (MR301 Series)
• 70% less relay volume than conventional relay (MR301 Series)
• 80% less relay space than conventional relay (MR301 Series)
• 90% less relay height than conventional relay (MR301 Sereis)
• 60% less relay weight than conventional relay (MR301 Sereis)
• Contact switching current of 30A max.
• Flux tight housing
• Delivered in stick-tube for automatic insertion machine
• Washable type available
PART NUMBERS AND COIL RATINGS
Part Number
Nominal
Voltage
(Vdc)
EQ1-31000S
EQ1-11040S
EQ1-22111S
EQ1-11111S
12
12
12
12
Coil
Resistance
(Ω±10%)
225
144
180
144
Nominal
Current
(mA)
53.3
83.3
66.7
83.3
Must Operate
Voltage
(Vdc)
6.5
6.5
7.2
6.5
Must Release
Voltage
(Vdc)
0.9
0.6
0.7
0.6
At 20°C (68°F)
Nominal
Operate Power
(W)
0.64
1.00
0.80
1.00
PART NUMBER SYSTEM
EQ1-31000S
Type
1: 144Ω±10%
2: 180Ω±10%
3: 225Ω±10%
1: 6.5 Vdc
2: 7.2 Vdc
Coil Resistance
(at 20°C)
Must Operate Voltage
(at 20°C)
Enclosure
NiI : Unsealed
S : Sealed
000 ~ 999
Specific Code
16
AUTOMOTIVE RELAYS
DIMENSIONS
mm (inch)
21.3
±0.5
(0.84)
14.5
±0.5
(0.57)
(
φ
0.028)
*0.5
±0.1
×
1.3
±0.1
(0.02
×
0.04)
1.5
(0.06)
2.0
(0.08)
±0.3
12.2
(0.48)
±0.3
12.0
±0.3
(0.47)
*2-0.5
±0.1
×
1.1
±0.1
(0.02
×
0.04)
* After soldering
PCB PAD LAYOUT and SCHEMATICS
(bottom view) mm (inch)
2-
φ
1.1
+0.1/–0
(
φ
0.043)
2-
φ
1.5
+0.1/–0
(
φ
0.059)
(0.236)
6.0
2
1
*3.8
+1.0
–0.5
(0.15)
*2-
φ
0.7
±0.1
14.9
±0.5
(0.59)
0.5 (0.02)
4
2
1
4
2.0
(0.078)
12.2
(0.48)
(0.236)
φ
1.6
+0.1/–0
(
φ
0.063)
6.0
3
1 Form c
5
3
1 Form a
5
SPECIFICATIONS
Items
Contact Form
Contact Material
Contact Resistance
Contact Switching Voltage
Contact Switching Current
Contact Carrying Current
(2 minutes max.)
Operate Time
Release Time
Nominal Operate Power
Insulation Resistance
Breakdown Voltage
Shock Resistance
Vibration Resistance
Ambient Temperature
Coil Temperature
Life Expectancy
EQ1-31000S
1 form c
Specification
EQ1-11040S
EQ1-11111S
1 form a
At 20°C (68°F)
EQ1-22111S
Silver oxide complex alloy
5 mΩ typical (measured at 1 A) initial
16 Vdc max. 5 Vdc min.
30 A max. (at 16 Vdc)
40 A (12 Vdc at 25°C) 35 A (12 Vdc at 25°C)
35 A (12 Vdc at 85°C) 30 A (12 Vdc at 85°C)
3 ms typical (at nominal voltage) initial
4 ms typical (at nominal voltage. with diode) initial
640 mW
1000 mW
100 MΩ at 500 Vdc
500 Vac min. for 1 minute
98 m/s
2
min. [misoperating]
10 to 300 Hz, 43 m/s
2
min. [misoperating]
–40°C to +85°C (–40°F to +185°F)
–40°C to +125°C (–40°F to +257°F)
70°C/W (contact carrying current 0 A)
1
×
10
6
operations
1
×
10
5
operations
1
×
10
5
operations
(at 14 Vdc, motor load 20 A/3 A)
(at 14 Vdc. Lamp load 120 W)
Approx. 9 g
800 mW
Mechanical
Electrical
Weight
17
AUTOMOTIVE RELAYS
No part of this document may be copied or reproduced in any form or by any means without the
prior written consent of NEC/TOKIN Corporation. NEC/TOKIN Corporation assumes no resposibility
for any errors which may appear in this document.
NEC/TOKIN 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
/TOKIN Corporation or others.
While NEC/TOKIN Corporation has been making continuous effort to enhance the reliability of its
e l e c t r o n i c 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/TOKIN electronic component,
customers must incorporate sufficient safety measures in its design, such as redundancy,fire-
containment, and anti-failure features. NEC/TOKIN 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
a p p l i c a t i o n . T h e r e c o m m e n d e d 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
e q u i p m e n t ( n o t specifically designed for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control
s y s t e m s , l i f e support systems or medical equipment for life support, etc.
The quality grade of NEC/TOKIN devices is "Standard" unless otherwise specified in NEC/TOKIN’s
Data Sheets or Data Books. If customers intend to use NEC/TOKIN devices for applications other
than those specified for Standard quality grade, they should contact an NEC/TOKIN sales representative
in advance.
(Note)
(1) "NEC/TOKIN" as used in this statement means NEC/TOKIN Corporation and also includes
its majority-owned subsidiaries.
( 2 ) "NEC/TOKIN electronic component products" means any electronic component product developed
or manufactured by or for NEC/TOKIN (as defined above).
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