DESCRIPTION
The EC2 series has reduced mounting space but sustained high-performance of NEC EA2 series. Furthermore,
it complies with 2500 V surge-voltage requirement of Bellcore specification.
FEATURES
TM Compact and light weight
TM 2 form c contact arrangement
TM Low power consumption
TM Reduced mounting space : 15 mm
7.5 mm
TM High-breakdown voltage of coil to contacts :
1500 Vac, 2500 V (rise time : 2
s, fall time : 10
s)
TM Capable of High-power switching :
700 Vac, 4.2 A, 4 times in case of accident
TM UL recognized (E73266), CAS certified (LR46266)
APPLICATIONS
Electronic switching systems, PBX, terminal equipment, telephone systems.
DATA S H E E T
COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE,
HIGH BREAKDOWN VOLTAGE
EC2 SERIES
MINIATURE SIGNAL RELAY
Document No. ER0002EJ4V0DS00 (4th edition)
Date Published June 1999 M
Printed in Japan
1994(1996)
For Right Use of Miniature Relays
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.
2
EC2 SERIES
DATA SHEET ER0002EJ4V0DS00
OUTLINE DRAWING AND DIMENSIONS
PAD LAYOUT (bottom view)
Unit : mm (inch)
MARKINGS
EC2-5NU
9206
JAPAN
JAPAN
1
4
3
6
5
2
EC2-5
9206
1
4
3
5
2
q Part number
w Manufacturer
e Country of origin
r Date code
t Index mark of relay direction
(pin No. 1, 12)
y UL, CSA Marking
Standard type
UL recognized,
CSA certified type
PIN CONFIGURATIONS (bottom view)
7.5 (0.30) MAX.
9.4(0.37) MAX.
3.2
(0.13)
5.08
0.25
(0.01)
0.5
(0.02)
15.0 (0.59) MAX.
5.08 2.54 2.54 2.54
(0.20)(0.10)(0.10)(0.10)
(0.20)
Note. General tolerance : 0.2 ( 0.008)
Dimensions in show basic size.
NJ type : Leads-2.8 mm (0.11)
+
+
Note. General tolerance : 0.1 ( 0.004)
+
+
4
2.54 (0.1)
2
2.54(0.1)
2.54(0.1)
8 - 0.8 (0.31)
5
2.54 (0.1)
2
2.54(0.1)
2.54(0.1)
2.54
(0.10)
2.54
(0.10)
10- 0.8 (0.31)
Non-latch and Single coil latch
Double coil latch
Index mark of
relay direction
Non-latch type
(not energized position)
Single coil latch type
(reset position)
Double coil latch type
(reset position)
S : Coil polarity of set (operate)
R : Coil polarity of reset (release)
1
3
4
5
6
12
10
9
8
7
1
3
4
5
12
10
9
8
1
3
4
5
12
10
9
S
R
S
R
8
SAFETY STANDARD AND RATING
UL Recognized
(UL508)
File No E73266
CSA Certificated
(CSA C22.2 No 14)
File No LR46266
30 Vdc, 2A
(Resistive)
110 Vdc, 0.3A (Resistive)
125 Vdc, 0.5A (Resistive)
Spacing : UL114, UL478
TUV Certificate
(EN60255 / IEC60255)
Creepage and clearance of
coil to contact is more than 2 mm.
(According EN60950)
Basic insulation class
No. R 9751153
(Nonlatch and Single-coil-latch)
3
DATA SHEET ER0002EJ4V0DS00
EC2 SERIES
PART NUMBER SYSTEM
E C 2 9 S NU
Nil : Standard type
NU : UL recognized, CSA certified type
NJ : Trimed leads type
NP : Silver-palladium alloy contact (with gold alloy overlay)
Latch type
Nil : Non-latch type
S : Single coil latch type
T : Double coil latch type
Nominal coil voltage
3, 4.5, 5, 6, 9, 12, 24 V
EC2 series
UL recognized, CSA certified type
2 Form c
Silver alloy with gold alloy overlay
60 W, 125 VA
220 Vdc, 250 Vac
2 A
2 A
10 mVdc, 10
A
1
50 m
typ. (Initial)
140 mW (3 to 12 V), 200 mW (24 V)
100 mW
140 mW
Approx. 2 ms
Approx. 1 ms without diode
1000 M
at 500 Vdc
1000 Vac (for one minute)
1500 V surge (10
160
s
2
)
1500 Vac (for one minute)
Double Coil 1000 Vac (for one minute)
2500 V surge, (2
10
s
3
)
Latch type 1500 V surge (10
160
s
2
)
735 m / s
2
(75 G) (misoperating)
980 m / s
2
(100 G) (destructive failure)
10 to 55 Hz double amplitude of 3 mm (20 G) (misoperating)
10 to 55 Hz, double amplitude of 5 mm (30 G) (Destructive failure)
40 to 85C
18 degrees at nominal coil voltage (140 mW)
1
10
8
4
operations (Non-latch type) 1
10
7
operations (latch type)
50 Vdc, 0.1 A (resistive) 1
10
6
operations at 85C, 2 Hz
10 Vdc, 10 mA (resistive) 1
10
6
operations at 85C, 2 Hz
Approx. 1.9 g
Contact Form
Contact Material
Maximum Switching Power
Maximum Switching Voltage
Maximum Switching Current
Maximum Carrying Current
Minimum Contact Ratings
Initial Contact Resistance
Non-Latch Type
Nominal Operating Power
Single 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
No-load
Load
Weight
PERFORMANCE CHARACTERISTICS
Running specifications
Contact Ratings
(UL / CSA Rating)
1
This value is reference value in the resistance load.
Minimum capacity changes depending on switching frequency and environment temperatur and the load.
2
rise time : 10
s, fall time : 160
s
3
rise time : 2
s, fall time : 10
s
4
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 whicha steady characteristic is maintained is 1
10
7
times.
4
EC2 SERIES
DATA SHEET ER0002EJ4V0DS00
PRODUCT LINEUP
Non-latch Type
Nominal Coil
Voltage
(Vdc)
3
4.5
5
6
9
12
24
Coil
Resistance
(
)
10 %
64.3
145
178
257
579
1028
2880
Must Operate
Voltage
(Vdc)
2.25
3.38
3.75
4.5
6.75
9
18
Must Release
Voltage
(Vdc)
0.3
0.45
0.5
0.6
0.9
1.2
2.4
Single-Coil Latch Type
at 20C
at 20C
at 20C
Nominal Coil
Voltage
(Vdc)
3
4.5
5
6
9
12
24
Coil
Resistance
(
)
10 %
S
64.3
R
64.3
S
145
R
145
S
178
R
178
S
257
R
257
S
579
R
579
S
1028
R
1028
S
4114
R
4114
Must Operate
Voltage
(Vdc)
2.25
3.38
3.75
4.5
6.75
9
18
Must Release
Voltage
(Vdc)
2.25
3.38
3.75
4.5
6.75
9
18
Double-Coil Latch Type
(Can not be driven by revese polarity for reverse operation.)
Note
Test by pulse voltage
S : Set coil (pin No.1... , pin No.5... ) R : Reset coil (pin No.10... , pin No.6... )
The latch type relays should be initalized at appointed position before using, and should be enegized to specific
polanity by a bone polabity to avoid wrong operation.
Any special coil requirement, please contact NEC for availability.
Nominal Coil
Voltage
(Vdc)
3
4.5
5
6
9
12
24
Coil
Resistance
(
)
10 %
90
202.5
250
360
810
1440
5760
Must Operate
Voltage
(Vdc)
2.25
3.38
3.75
4.5
6.75
9
18
Must Release
Voltage
(Vdc)
2.25
3.38
3.75
4.5
6.75
9
18
+
+
5
DATA SHEET ER0002EJ4V0DS00
EC2 SERIES
TYPICAL PERFORMANCE DATA
100
0
10
20
30
40
50
200
300
400
3
2
1
0
100
200
300
400
500
Applied Power (mW)
Operate Time or
Bounce Time at Operate (ms)
Release Time or
Bounce Time at Release (ms)
Release Time or
Bounce Time at Release (ms)
Applied Power (mW)
Coil Temperarure Rise (C)
30
100
200
2
1
0.5
0.4
0.3
0.2
Switching Voltage (V)
Switching Current (A)
Operate Time
Bounce Time Operate
2
1
0
100
200
300
400
500
Applied Power (mW)
Bounce Time at Release
Release Time
3
2
1
0
100
200
300
400
500
Applied Power (mW)
Release Time
Bounce Time at Release
0.273 A
250 V
220 V
DC Load (resistive)
AC Load (resistive)
SWITCHING CAPACITY
OPERATE TIME
RELEASE TIME WITHOUT DIODE
RELEASE TIME WITH DIODE
COIL TEMPERATURE RISE
RUNNING SPECIFICATIONS (Noload)
5
4
3
2
1
0
1
2
3
4
10
Sample : EE2-5 n=10
Load : None
Operate Voltage
Release Voltage
Operate Voltage or
Release Voltage(V)
Number of Operations(x10
6
operations)
1000
500
300
200
100
50
30
20
10
1
0
2
3
5
10
Temperature : 85C
Drive : 5 Vdc, 10 Hz 5% duty
Make contact
Break contact
Contact Resistance(m
)
Number of Operations(x10
6
operations)
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