AUTOMOTIVE RELAYS
ET1 SERIES
FEATURES
• 50% less relay volume than conventional relay (EP1 Series)
• 75% less relay space than conventional relay (EP1 Series)
• 70% less relay height than conventional relay (EP1 Sereis)
• 50% less relay weight than conventional relay (EP1 Sereis)
• Contact switching current of 25A 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)
ET1-B3M1S
12
Coil
Resistance
(Ω±10%)
225
Nominal
Current
(mA)
53.3
Must Operate
Voltage
(Vdc)
6.5
Must Release
Voltage
(Vdc)
0.9
At 20°C (68°F)
Nominal
Operate Power
(W)
0.64
PART NUMBER SYSTEM
ET1F-B3M1S
Type
Enclosure
NiI : Unsealed
S : Sealed
1 : 6.5 V
NiI : Standard type
F : High heat resistivity type
B : High current type
Heat Resistivity
Must Operate Voltage
(at 20
°C)
Carrying Current Capacity
3 : 225Ω
±
10%
Coil Resistance
(at 20°C)
Conact Material
M : Silver oxide complex alloy
12
AUTOMOTIVE RELAYS
DIMENSIONS
mm (inch)
14.0
±0.5
(0.55)
12.8
±0.5
(0.50)
0.5 (0.02)
*2-0.6
×
1.1
(0.02
×
0.04)
*2-
φ
0.6
(
φ
0.02)
*0.4
×
1.3
(0.016
×
0.05)
1.15 (0.05)
2.05 (0.10)
*3.8
+1.0
–0.5
(0.15)
6.4
(0.25)
10.6
12.0
10.5
±0.5
(0.04) 1.13
(0.15) 3.7
(0.29) 7.4
(0.42)
(0.47)
9.35
* 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)
1
2
3
4
(0.37)
(0.41)
φ
1.6
+0.1
–0
5
(
φ
0.063)
SPECIFICATIONS
Items
ET1
Contact Form
Contact Material
Contact Resistance
Contact Switching Voltage
Contact Switching Current
Contact Carrying Current
1 form c
Silver oxide complex alloy
4 mΩ typical (measured at 7 A) initial
16 Vdc max. 5 Vdc min.
25 A max. (at 16 Vdc)
35 A (2 minutes max. 12 Vdc at 20°C)
30 A (2 minutes max. 12 Vdc at 85°C)
Operate Time
Release Time
Nominal Operate Power
Insulation Resistance
Breakdown Voltage
Shock Resistance
Vibration Resistance
Ambient Temperature
Coil Temperature Rise
Life Expectancy
Weight
2.5 ms typical (at nominal voltage) initial
3.0 ms typical (at nominal voltage. with diode) initial
640 mW
100 MΩ min. at 500 Vdc
Specification
ET1F
At 20°C (68°F)
40 A (2 minutes max. 12 Vdc at 20°C)
35 A (2 minutes max. 12 Vdc at 85°C)
30 A (2 minutes max. 12 Vdc at 125°C)
Mechanical
Electrical
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 (at 14 Vdc, Motor Load 20 A/3 A)
Approx. 7.5 g
13
AUTOMOTIVE RELAYS
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for any errors which may appear in this document.
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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
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/TOKIN Corporation or others.
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"Standard," "Special," and "Specific". The Specific quality grade applies only to devices
developed based on a customer designated "quality assurance program" for a specific
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below. Customers must check the quality grade of each device before using it in a particular
application.
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equipment, audio and visual equipment, home electronic appliances, machine tools,
personal electronic equipment and industrial robots
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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).
DE0202
Embedded System
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