NEC EA2 User Manual
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DATA SHEET
MINIATURE SIGNAL RELAY
EA2 SERIES
COMPACT AND LIGHTWEIGHT
DESCRIPTION
The EA2 series has reduced package size and power consumption to other NEC Conventional relays.
Furthermore, it complies with 1500 V surge-voltage requirement of FCC part 68 by the unique structure and the
efficient magnetic circuit
FEATURES
™ Low power consumption
™ Compact and light weight
™ 2 form c contact arrangement
™ Low magnetic arrangement
™ Breakdown voltage : 1000 Vac (surge voltage 1500 V), FCC Part 68 compliant
™ Tube packaging
™ UL recognized (E73266), CAS certified (LR46266)
APPLICATIONS
Electronic switching systems, PBX, key telephone systems, automatic test equipment and other electronic equipment.
ATTENTION
DO NOT EXCEED MAXIMUM RATINGS.
Do not use relays under exceeding conditions such as over ambient temperature, over voltage and over
current. Incorrect use could result in abnormal heating, damage to related parts or cause burning.
READ CAUTIONS IN THE SELECTION GUIDE.
Read the cautions described in NEC's "Miniature Relays" (ER0046EJ∗) when you choose relays for
your application.
Document No. ER0001EJ6V0DS00 (6th edition)
Date Published June 1999 M
Printed in Japan
©
1989 (1996)
EA2 SERIES
OUTLINE DRAWING AND DIMENSIONS PAD LAYOUT (bottom view)
Unit : mm (inch)
14.2 max.
(0.56)
0.33 (0.013)
0.5
(0.02)
2.54
(0.10)
+
Note. tolerance 0.2 ( 0.008) unless otherwise specified
Dimensions in show basic size.
+
–
–
NJ type : Cover height-6.3 mm (0.248), Leads-2.8 mm (0.11)
(0.21)
5.4 max.
3.5
9.2 max.
(0.36)
0.25
(0.01)
7.62
(0.30)
MARKINGS
1
2
5
EA2-5
JAPAN
Standard type
9106
w Manufacturer
e Country of origin
q Part number
43
r Date code
t Index mark of relay direction
(pin No. 1, 10.)
1
y UL, CSA Marking
φ
10- 0.8(0.03)
7.62
(0.30)
2.54
(0.10)
10.16
2.54
(0.10)
(0.40)
+
Note. Tolerance 0.1 ( 0.004) unless othewise specified
+
–
–
SAFETY STANDARD AND RATING
UL Recognized
∗
(UL508)
File No E73266
30 Vdc, 1 A (Resistive)
110 Vdc, 0.3 A (Resistive)
125 Vdc, 0.5 A (Resistive)
∗
Spacing : UL114, UL478
CSA Certificated
(CSA C22.2 No 14)
File No LR46266
EA2-5NU
JAPAN
5
9106
UL recognized,
CSA certified type
PIN CONFIGURATIONS
12345
+
–
Index mark of
relay direction
10 9 8 7 6
(not energized position)
2
3
46
Non-latch type
12345
–
+
R S
–
+
10 9 8
Single coil latch type
(reset position)
76
S
123
+
+
45
–
–
10 9 8 7 6
R
Double coil latch type
(reset position)
S : Coil polarity of set (operate)
R : Coil polarity of reset (release)
2
DATA SHEET ER0001EJ6V0DS00
EA2 SERIES
PART NUMBER SYSTEM
EA2 – 3 S NU
Nil : Standard type
NU : UL recognized, CSA certified type
NJ : Trimmed leads type
NP : Silver-palladium alloy contact (with gold alloy overlay) ∗
∗
UL recognized, CAS certified type
Latch type
Nil : Non-latch type (standard type)
S : Single coil latch type
T : Double coil latch type
Nominal coil voltage
3, 4.5, 5, 6, 9, 12, 24 Volts
EA2 series
∗
PERFORMANCE CHARACTERISTICS
Contact Form
Maximum switching power
Contact rating
Maximum switching voltage
Maximum switching current
Maximum carrying current
Minimum contact ratings
Initial contact resistance
Contact material
Nominal operating Power
Non-latch type and double coil latch type
Single coil Latch type
Minimum operating Power
Non-latch type and double coil latch type
Single coil latch type
Operate time (excluding bounce)
Release time (excluding bounce)
Insulation resistance
Between open contacts
Breakdown voltage Between adjacent contacts
Between coil and contact
Shock resistance
Vibration resistance
Ambient temperature
Coil temperature rise
Noload
Running specifications
Load
Weight
∗1
This value is a reference value in the resistance load.
Minimum capacity changes depending on seitching frequency and environment temperature and the load.
∗2
Rise time : 10 µs, fall time : 160 µs
∗3
This shows a number of operation where it can be running by which a fatal defect is not caused, and a number of
operation by which a steady characteristic is maintained is 1 × 107 times.
2 form c
30 W (resistive) 62.5 VA (resistive)
220 Vdc 250 Vac
1 A
2 A
10 mVdc, 10 µA
∗1
50 mΩ typ. (Initial)
Silver alloy with gold alloy overlay
140 mW (3 to 12 V)
200 mW (24 V)
100 mW (3 to 12 V)
150 mW (24 V)
79 mW (3 to 12 V)
113 mW (24 V)
56 mW (3 to 12 V)
85 mW (24 V)
Approximately 2 ms without diode
Approximately 1 ms without diode
1000 MΩ at 500 Vdc
1000 Vac (for one minute)
1500 V surge (10 × 160 µs ∗2)
735 m / s2 (75 G) (misoperating)
980 m / s2 (100 G) (destructive failure)
10 to 55 Hz at double amplitude of 3 mm (20 G)
(misoperating)
10 to 55 Hz, at double amplitude of 5 mm (30 G)
(destructive failure)
–40°C to 85°C
18 degrees at nominal coil voltage
1 × 108 operations (Non-latch type)
1 × 107 operations (latch type)
50 Vdc 0.1 A (resistive), 1 × 106 operations at 85˚C, 2 Hz
10 Vdc 10 mA (resistive), 1 × 106 operations at 85˚C, 2 Hz
Approximately 1.5 grams
∗3
3DATA SHEET ER0001EJ6V0DS00
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