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EA2 Series

Features | Specifications | Dimensions | Pad Layout | Markings | Schematics
Part Number System | Nominal Lineup | Safety Standard and Rating

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EA2/EB2 Series Data

Features

CSAUR

The EA2 series is available in 2 form C (DPDT) contact arrangements for all latch types.

The NEC EA2 series relays are low power consumption, low magnetic interference relays. Their compact lightweight design makes them ideal for use in telecommunications equipment. This series also complies with FCC Part 68 1500V surge voltage requirements.
  • Low power consumption
  • Compact and lightweight
  • 2 form C contact arrangement
  • Low magnetic interference
  • Breakdown voltage: 1000 Vac (surge voltage 1500 V), FCC Part 68 compliant
  • Tube packaging
  • UL recognized (E73266), CSA certified (LR46266)

Specifications

Contact Form
2 form C
Contact Material
Silver alloy with gold alloy overlay
Contact Ratings Maximum switching power
30 W, 62.5 VA
Maximum switching voltage
220 Vdc, 250 Vac
Maximum switching current
1 A
Maximum carrying current
2 A
Minimum Contact Ratings
10 mVdc, 10 µA (resistive)
Initial Contact Resistance
50 mOhm typical
Nominal Operating Power Nonlatch type
Double coil latch type
140 mW (3 to 12 V)
200 mW (24 V)
Single coil latch type
100 mW (3 to 12 V), 150 mW (24V)
Operate Time (Excluding bounce)
Approximately 2 ms without diode
Release Time (Excluding bounce)
Approximately 1 ms without diode
Insulation Resistance
1000 MOhm at 500 Vdc
Breakdown Voltage Between open contacts
1000 Vac (for one minute)
1500 V surge (10 x 160 µs*)
Between adjacent contacts
Between coil to contacts
1000 Vac (for one minute)
1500 V surge (10 x 160 µs*)
Shock Resistance
735 m/s2 (75 G) (misoperating)
980 m/s2 (100G) (destructive failure)
Vibration Resistance
10 to 55 Hz, double amplitude 3 mm (20 G) (misoperating)
10 to 55 Hz, double amplitude 5 mm (30 G) (destructive failure)
Ambient Temperature
-40 to +85°C
Coil Temperature Rise
18 degrees at nominal coil voltage (140mW)
Running Specifications Nonload
1 x 107 operations
Load
50 Vdc, 0.1 A (resistive) 1 x 106 operations at 85°C
10 Vdc, 10 mA (resistive)1 x 106 operations at 85°C
Weight
Approximately 1.5 g
* rise time: 10µs,
fall time: 160µs

Dimensions

mm (inch)


Pad Layout

(bottom view) mm (inch)


Markings


Schematics

(bottom view)


Part Number System

EA2
1
- 5
2
T
3
NJ
4
1 Relay series — through hole type
2 Nominal coil voltage (See nominal lineup)
3 Latch Type
Blank: Non-latch type (standard)
S: Single coil latch type
T: Double coil latch type
4 Identifier
NJ: Trimmed leads, standard (UL recognized, CSA certified type)
NU: Long lead length type (UL recognized, CSA certified type)


Nominal Lineup

Nonlatch Type at 25° C

 Part Number 
(Standard)
Nominal
 Coil Voltage 
(Vdc)
Coil
Resistance
 (Ohm) ±10% 
Must Operate
Voltage
(Vdc)
Must Release
Voltage
(Vdc)
  EA2-3NJ 3 64.3 2.25 0.3
  EA2-4.5NJ  4.5 145 3.38 0.45
  EA2-5NJ 5 178 3.75 0.5
  EA2-6NJ 6 257 4.5 0.6
  EA2-9NJ 9 579 6.75 0.9
  EA2-12NJ 12 1028 9 1.2
  EA2-24NJ 24 2880 18 2.4

Single Coil Latch Type at 25 °C

 Part Number 
(Standard)
Nominal
 Coil Voltage 
(Vdc)
Coil
Resistance
 (Ohm) ±10% 
Must Operate
Voltage
(Vdc)
Must Release
Voltage
(Vdc)
  EA2-3SNJ 3 90 2.25 2.25
  EA2-4.5SNJ  4.5 202.5 3.38 3.38
  EA2-5SNJ 5 250 3.75 3.75
  EA2-6SNJ 6 360 4.5 4.5
  EA2-9SNJ 9 810 6.75 6.75
  EA2-12SNJ 12 1440 9.0 9.0
  EA2-24SNJ 24 3840 18.0 18.0

Double Coil Latch Type at 25 °C

Part Number
(Standard)
Nominal
Coil Voltage
(Vdc)
Coil
Resistance
 (Ohm) ±10% 
Must Operate
Voltage
(Vdc)
 Must Release 
Voltage
(Vdc)
  EA2-3TNJ 3 S 64.3
R 64.3
2.25
-
-
2.25
  EA2-4.5TNJ  4.5 S 145
R 145
3.38
-
-
3.38
  EA2-5TNJ 5 S 178
R 178
3.75
-
-
3.75
  EA2-6TNJ 6 S 257
R 257
4.5
-
-
4.5
  EA2-9TNJ 9 S 579
R 579
6.75
-
-
6.75
  EA2-12TNJ 12 S 1028
R 1028
9.0
-
-
9.0
  EA2-24TNJ 24 S 2880
R 2880
18.0
-
-
18.0
Note S: Set Coil (pin No. 1 and 5)
R: Reset Coil (pin No. 6 and 10)


Safety Standards and Rating

UL Recognized
(UL508)*
File No. E73266
CSA Certified
(CSA C22.2 No. 14)
File No. LR46266
30 Vdc, 1 A (Resistive)
110 Vdc, 0.3 A (Resistive)
125 Vac, 0.5 A (Resistive)

* Spacing: UL114, UL478

EA2/EB2 Series Data

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Last updated: 5-22-02