DATA S H E E T
MINIATURE SIGNAL RELAY
EC2 SERIES
COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE,
HIGH BREAKDOWN VOLTAGE
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
™
Compact and light weight
™
2 form c contact arrangement
™
Low power consumption
™
Reduced mounting space : 15 mm
×
7.5 mm
™
High-breakdown voltage of coil to contacts :
1500 Vac, 2500 V (rise time : 2
µ
s, fall time : 10
µ
s)
™
Capable of High-power switching :
700 Vac, 4.2 A, 4 times in case of accident
™
UL recognized (E73266), CAS certified (LR46266)
APPLICATIONS
Electronic switching systems, PBX, terminal equipment, telephone systems.
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.
Document No. ER0002EJ4V1DS00 (4th edition)
Date Published December 2000 M CP(K)
Printed in Japan
WORLD PRODUCTS INC.
Ph (707) 996-5201 Fx (707) 996-3380
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e-mail: corpsales@worldproducts.com
©
1994 (1996)
EC2 SERIES
OUTLINE DRAWING AND DIMENSIONS
Unit : mm (inch)
PAD LAYOUT
(bottom view)
Non-latch and Single coil latch
2
×
2.54(0.1)
2.54(0.1)
Double coil latch
2
×
2.54(0.1)
2.54(0.1)
15.0 (0.59) MAX.
9.4(0.37) MAX.
7.5 (0.30) MAX.
8-
φ
0.8 (0.03)
8-
φ
0.8 (0.03)
3.2
(0.13)
0.5
(0.02)
5.08 2.54 2.54 2.54
(0.20)(0.10)(0.10)(0.10)
0.25
(0.01)
5.08
(0.20)
2.54
(0.10)
4
×
2.54 (0.1)
2.54
(0.10)
5
×
2.54 (0.1)
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)
–
–
MARKINGS
Standard type
1
2
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)
EC2-5
∗
Spacing : UL114, UL478
5
JAPAN
3
9206
q
Part number
4
w
Manufacturer
e
Country of origin
r
Date code
t
Index mark of relay direction
1
(pin No. 1, 12)
y
UL, CSA Marking
UL recognized,
CSA certified type
TUV Certificate
(EN60255 / IEC60255)
No. R 9751153
(Nonlatch and Single-coil-latch)
Creepage and clearance of
coil to contact is more than 2 mm.
(According EN60950)
Basic insulation class
2
EC2-5NU
5
JAPAN
3
9206
4
6
PIN CONFIGURATIONS
(bottom view)
1
3
4
5
R S
Index mark of
relay direction
12
10
9
8
12
10
9
8
1
3
4
5
S
12
10
9
8
7
1
3
4
5
6
R
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)
WORLD PRODUCTS INC.
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2
ER0002EJ4V1DS00
EC2 SERIES
PART NUMBER SYSTEM
EC2 – 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)
∗
∗
UL recognized, CSA certified type
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
PERFORMANCE CHARACTERISTICS
Contact Form
Contact Material
Contact Ratings
(UL / CSA Rating)
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
2 Form c
Silver alloy with gold alloy overlay
60 W, 125 VA
220 Vdc, 250 Vac
2A
2A
10 mVdc, 10
µ
A
∗
1
50 mΩ 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 MΩ at 500 Vdc
1000 Vac (for one minute)
1500 V surge (10
×
160
µ
s
∗
2
)
1500 Vac (for one minute)
2500 V surge, (2
×
10
µ
s
∗
3
)
Double Coil 1000 Vac (for one minute)
Latch type 1500 V surge (10
×
160
µ
s
∗
2
)
Shock Resistance
735 m / s
2
(misoperating)
980 m / s
2
(destructive failure)
10 to 55 Hz double amplitude of 3 mm (misoperating)
10 to 55 Hz, double amplitude of 5 mm (Destructive failure)
–40 to 85˚C
18 degrees at nominal coil voltage (140 mW)
No-load
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 85˚C, 2 Hz
10 Vdc, 10 mA (resistive) 1
×
10
6
operations at 85˚C, 2 Hz
Approx. 1.9 g
Vibration Resistance
Ambient Temperature
Coil Temperature Rise
Running specifications
Load
Weight
∗
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
µ
s, fall time : 160
µ
s
∗
3
rise time : 2
µ
s, fall time : 10
µ
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.
Recommended relay drive conditions
Drive under conditions. If it is impossible, please inquire to NEC.
Nonlatch type
Single coil latch type
Double coil latch type
Voltage: within
±5%
at nominal voltage
Square pulse (rise and fall time is rapidly)
Pulse height : within
±5%
at nominal voltage
Pulse width : More than 10 ms
Ambient temperature
–40 to +85˚C
WORLD PRODUCTS INC.
ER0002EJ4V1DS00
Ph (707) 996-5201 Fx (707) 996-3380
www.worldproducts.com
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3
EC2 SERIES
PRODUCT LINEUP
Non-latch Type
Nominal Coil
Voltage
(Vdc)
3
4.5
5
6
9
12
24
Coil
Resistance
(Ω)
±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
at 20˚C
Single-Coil Latch Type
Nominal Coil
Voltage
(Vdc)
3
4.5
5
6
9
12
24
Coil
Resistance
(Ω)
±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
at 20˚C
Double-Coil Latch Type
∗∗
(Can not be driven by revese polarity for reverse operation.)
Nominal Coil
Voltage
(Vdc)
3
S
R
S
R
S
R
S
R
S
R
S
R
S
R
Coil
Resistance
(Ω)
±10
%
64.3
64.3
145
145
178
178
257
257
579
579
1028
1028
4114
4114
18
–
18
9
–
9
–
Must Operate
Voltage
(Vdc)
2.25
–
3.38
–
3.75
–
4.5
–
6.75
–
Must Release
Voltage
(Vdc)
–
2.25
–
3.38
–
3.75
–
4.5
–
6.75
–
at 20˚C
4.5
5
6
9
12
24
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.
WORLD PRODUCTS INC.
4
ER0002EJ4V1DS00
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EC2 SERIES
PERFORMANCE DATA
sCOIL
TEMPERATURE RISE
Temperature is measured by coil resistance.
Coil temperature Rise (degree C)
Coil temperature Rise (degree C)
60
40
20
0
0
100
200
300
400
Applied Power (mW)
60
40
20
Applied power 0.4 W
Applied power 0.2 W
Applied power 0.14 W
0
0
5
10
15
20
Applied Time (minute)
sSWITCHING
CAPACITY
This is allowed maximum value.
Inquiry for NEC under maximum value at continuous use.
A ratio of nominal coil voltage (%)
sMAXIMUM
COIL VOLTAGE
This is maximum value of permissible alteration.
Inquiry for NEC at continuous use.
2.0
Contact current (A)
DC (Resistive)
AC (Resistive)
200
150
100
50
0
–40
1.0
0.5
0.2
0.1
10
20
50
100
200
Contact voltage (V)
–20
0
20
40
60
80
100
250 V.AC
220 V.DC
Ambient temperature (degree C)
sAPPLIED
VOLTAGE VS. TIMING
(Sample: EC2-5NU)
(Without coil diode)
4
Operate time (ms)
4
Release time (ms)
3
2
1
0
0
100
200
300
400
Applied power (mW)
3
2
1
0
0
100
200
300
400
Applied power (mW)
WORLD PRODUCTS INC.
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ER0002EJ4V1DS00
5
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