AWA0000CE4

“ZNR” Transient/Surge Absorbers (Type E)
“ZNR” Transient/Surge Absorbers
Type :
E
The ZNR Type E is capable of handling larger surge
energy than Type D in applications to protect electronic
equipment or semiconductor devices from switching and
induced lightning surges.
Features
● Very large surge withstanding capability with a compact size
● Direct mounting on boards like a power distribution board available
● Fast response to steep impulse voltage
● Low clamping voltage for better surge protection
● RoHS compliant
Recommended Applications
● Transistor, diode, IC, thyristor or triac semiconductor protection
● Surge protection in industrial power plant operations
● Relay or electromagnetic valve surge absorption
● Surge absorption applications in broadcasting, communications devices, traffic/railroad, agricultural facilities, waterworks
● Surge protection of automatic control devices for power distribution line
Note : Ask our factory for Product Specification before use.
Related Standards
UL/CSA recognized models are available on request]
● UL1449 File No. E321499 (Title: Surge Protective Devices)
● CSA C22.2 No.1 Class 2221 01 File No. LR-92226 (Title: Accessories and Parts for Electronic Products)
● Each type designation is not registered by Part Number.
If you have any question on type designation, please contact and ask our office.
■ As for Handling Precautions and Minimum Quantity / Packing Unit
Please see Related Information
Explanation of Part Numbers
1
2
3
4
E
R
Z
C
Product Code
5
6
Element Size
7
8
E
K
Type
Tolerance
9
10
11
Nominal
Varistor Voltage
12
Design No.
Dimensions in mm (not to scale)
ISO
M4
(Unit : mm)
4.3
24
W
H
L
ERZC20EK□□□□
48±1
42±1
39±1
ERZC32EK□□□□
60±1
55±1
51±1
H
5
L
W
12
Part No.
ZNR
Part No.
Date code
14
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
02
Jan. 2015
“ZNR” Transient/Surge Absorbers (Type E)
20 Series
Ratings and Characteristics(ERZC20EK)
●
●
Operating Temperature Range : –40 to 85 °C
Storage Temperature Range : –40 to 110 °C
Part No.
Varistor
Voltage
Maximum
Allowable
Voltage
V1 mA (V)
ACrms (V) DC (V)
ERZC20EK201 200 (185 to 225)
130
170
ERZC20EK241 240 (216 to 264)
150
200
ERZC20EK271 270 (247 to 303)
175
225
ERZC20EK361 360 (324 to 396)
230
300
ERZC20EK391 390 (351 to 429)
250
320
275
350
ERZC20EK431 430 (387 to 473)
ERZC20EK471 470 (423 to 517)
300
385
ERZC20EK511 510 (459 to 561)
320
415
385
505
ERZC20EK621 620 (558 to 682)
ERZC20EK681 680 (612 to 748)
420
560
ERZC20EK751 750 (675 to 825)
460
615
ERZC20EK781 780 (702 to 858)
485
640
ERZC20EK821 820 (738 to 902)
510
670
ERZC20EK911 910 (819 to 1001)
550
745
ERZC20EK102 1000 (900 to 1100)
625
825
ERZC20EK112 1100 (990 to 1210)
680
895
Maximum
Clamping
Voltage
Rated
Power
Energy
(2 ms)
V100 A (V)
340
395
455
595
650
710
775
845
1025
1120
1240
1290
1355
1500
1650
1815
(W)
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
(J)
80
95
100
120
130
140
150
150
160
175
190
200
215
240
245
250
Maximum
Clamping
Voltage
Rated
Power
Energy
(2 ms)
V200 A (V)
340
395
455
595
650
710
775
845
1025
1120
1240
1290
1355
1500
1650
1815
(W)
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
(J)
210
240
255
325
350
400
405
405
415
450
500
520
545
600
620
640
Maximum
Typical
Peak Current
Capacitance
(8/20 μs)
(Reference)
1 time 2 times
(A)
(A)
at 1kHz (pF)
8000
5000
2300
8000
5000
1500
8000
5000
1400
8000
5000
1300
8000
5000
1200
8000
5000
1000
8000
5000
950
8000
5000
930
8000
5000
900
8000
5000
850
8000
5000
800
8000
5000
800
8000
5000
700
8000
5000
700
8000
5000
400
8000
5000
350
32 Series
Ratings and Characteristics(ERZC32EK)
●
●
Operating Temperature Range : –40 to 85 °C
Storage Temperature Range : –40 to 110 °C
Part No.
ERZC32EK201
ERZC32EK241
ERZC32EK271
ERZC32EK361
ERZC32EK391
ERZC32EK431
ERZC32EK471
ERZC32EK511
ERZC32EK621
ERZC32EK681
ERZC32EK751
ERZC32EK781
ERZC32EK821
ERZC32EK911
ERZC32EK102
ERZC32EK112
Varistor
Voltage
Maximum
Allowable
Voltage
V1 mA (V)
ACrms (V) DC (V)
200 (185 to 225)
130
170
240 (216 to 264)
150
200
270 (247 to 303)
175
225
360 (324 to 396)
230
300
390 (351 to 429)
250
320
430 (387 to 473)
275
350
470 (423 to 517)
300
385
510 (459 to 561)
320
415
620 (558 to 682)
385
505
680 (612 to 748)
420
560
750 (675 to 825)
460
615
780 (702 to 858)
485
640
820 (738 to 902)
510
670
910 (819 to 1001)
550
745
1000 (900 to 1100)
625
825
1100 (990 to 1210)
680
895
Maximum
Typical
Peak Current
Capacitance
(8/20 μs)
(Reference)
1 time 2 times
(A)
(A)
at 1kHz (pF)
25000 20000
5500
25000 20000
5000
25000 20000
4200
25000 20000
3500
25000 20000
3000
25000 20000
2500
25000 20000
2500
25000 20000
2400
25000 20000
2200
25000 20000
2100
25000 20000
2000
25000 20000
1900
25000 20000
1800
25000 20000
1700
25000 20000
1000
25000 20000
800
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
02
Jan. 2015
“ZNR” Transient/Surge Absorbers (Type E)
Typical Characteristics(Type E)
Voltage vs. Current
(ERZC20EK201 to ERZC20EK511)
Max. Leakage Current
Max. Clamping Voltage
2000
1000
900
800
700
600
91
EK3
C20
431
ERZ
K
E
C20
71
ERZ
EK4
C20
ERZ
511
0EK
ZC2
ER
500
Voltage (V)
ERZC20EK511
ERZC20EK471
ERZC20EK431
ERZC20EK391
ERZC20EK361
ERZC20EK271
ERZC20EK241
400
300
ERZC20EK201
1
271
K36 20EK
20EERZC
ZC
ER
200
41
EK2
C20
01
ERZ 20EK2
ZC
ER
100
90
80
70
60
Test Current Waveform
10-6 to 10-3 A: Direct Current
10-1 to 104 A: 8/20 μs
50
40
30
10-6
(ERZC20EK621 to ERZC20EK112)
10-5
10-4
10-3
10-2
10-1
100
Current (A)
Max. Leakage Current
101
102
103
104
105
Max. Clamping Voltage
4000
ERZC20EK112
ERZC20EK102
ERZC20EK911
ERZC20EK821
ERZC20EK781
ERZC20EK751
ERZC20EK681
3000
Voltage (V)
2000
ERZC20EK621
1
K82
20E 81
ZC
7
K
ER
20E 51
ZC
K7
ER
20E
ZC
681
ER
EK
0
2
ZC
ER
112
K
20E 102
ZC
EK
ER
20
ZC
11
R
K9
E
20E
ZC
ER
1000
900
800
700
600
500
21
K6
400
20E
ZC
ER
300
Test Current Waveform
10-6 to 10-3 A: Direct Current
10-1 to 104 A: 8/20 μs
200
10-6
10-5
10-4
10-3
10-2
10-1
100
Current (A)
101
102
103
104
105
Impulse Derating Curve (Relation between impulse width and surge, repetitively)
20 Series
20 Series
10000
8000
6000
2000
2000
1000
800
600
400
1000
800
600
400
200
100
80
60
40
20
1
Ti
m
2
e
Ti
m
10 es
T
10 2ime
s
Ti
m
10 3 es
Ti
10 4 mes
Tim
es
10 5
T
10 6 imes
Tim
es
200
100
80
60
40
20
(ERZC20EK751 to ERZC20EK112)
10000
8000
6000
2 times : 5 minutes
to 10 times : 2 minutes
6
to 10 times : 10 seconds
4000
Impulse Current (A)
Impulse Current (A)
10000
8000
6000
2 times : 5 minutes
to 10 times : 2 minutes
6
to 10 times : 10 seconds
4000
20 Series
(ERZC20EK361 to ERZC20EK681)
1
2000
Ti
m
10
2
Ti
Ti
e
m
m
es
es
10 2
Ti
m
10 3 es
Ti
m
es
10 4
Tim
es
10 5
Ti
10 6 mes
Tim
es
1000
800
600
400
200
100
80
60
40
20
10
8
6
4
10
8
6
4
2
2
2
1
1
10
8
6
4
20
100
1000
Impulse Width (μs)
10000
20
2 times : 5 minutes
to 10 times : 2 minutes
6
to 10 times : 10 seconds
4000
Impulse Current (A)
(ERZC20EK201 to ERZC20EK271)
2
1
Ti
Ti
m
m
10
es
Ti
e
m
es
10 2
10 3 Tim
e
s
T
10 4 ime
Tim s
10 5
es
10 6
Tim
e
Tim s
es
1
100
1000
Impulse Width (μs)
10000
20
100
1000
Impulse Width (μs)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
02
10000
Jan. 2015
“ZNR” Transient/Surge Absorbers (Type E)
Typical Characteristics(Type E)
Voltage vs. Current
(ERZC32EK201 to ERZC32EK511)
Max. Leakage Current
Max. Clamping Voltage
ERZC32EK511
ERZC32EK471
ERZC32EK431
ERZC32EK391
ERZC32EK361
2000
Voltage (V)
1000
900
800
700
600
ERZC32EK271
ERZC32EK241
ERZC32EK201
71
K4
32E 31
4
ZC
ER 32EK 1
39
ZC
ER 32EK
ZC
ER
11
K5
32E
ZC
ER
500
400
300
1
36
EK
32 71
ZC K2
ER C32E
Z
41
ER
K2
2E
C3 K201
Z
ER 32E
ZC
ER
200
100
90
80
70
60
50
Test Current Waveform
10-6 to 10-3 A: Direct Current
10-1 to 104 A: 8/20 μs
40
30
10-6
(ERZC32EK621 to ERZC32EK112)
10-5
10-4
10-3
10-2
10-1
100
Current (A)
Max. Leakage Current
4000
101
102
103
104
ERZC32EK112
ERZC32EK102
ERZC32EK911
ERZC32EK821
ERZC32EK781
ERZC32EK751
ERZC32EK681
ERZC32EK621
Max. Clamping Voltage
3000
Voltage (V)
2000
105
2
11
EK 2
32 10
ZC 2EK 11
R
E C3 K9
Z
E
ER C32
Z
ER
81
K7
2E 51
C3 EK7 1
Z
ER C32 K68
Z
E
ER C32
Z
21
ER
K8
2E
C3
Z
ER
1000
900
800
700
600
500
1
62
EK
400
32
C
RZ
E
300
Test Current Waveform
10-6 to 10-3 A: Direct Current
10-1 to 104 A: 8/20 μs
200
10-6
10-5
10-4
10-3
10-2
10-1
100
Current (A)
101
103
102
104
105
Impulse Derating Curve (Relation between impulse width and surge, repetitively)
(ERZC32EK201 to ERZC32EK271)
10000
8000
6000
e
10 s
2000
Ti
m
20
es
10 2
Tim
10 3
es
Tim
es
10 4
10 5
10 6
2
Ti
1
m
e
Impulse Current (A)
Impulse Current (A)
m
Tim
es
Tim
1000
800
600
400
200
100
80
60
es
40
es
20
es
4000
Ti
2
m
10
e
2000
m
1000
800
600
Ti
es
10 2
Tim
10 3
es
Tim
es
10 4
10 5
10 6
Tim
10000
8000
6000
Tim
Tim
es
400
Tim
10
8
6
4
4
4
2
2
10000
20
m
Ti
es
m
es
10 4
10
8
6
100
1000
Impulse Width (μs)
1
10 2 0 T
i
10 3
10
8
6
20
es
100
80
60
20
es
m
200
40
es
Ti
e
40
4000
Ti
m
200
100
80
60
10000
8000
6000
2 times : 5 minutes
to 10 times : 2 minutes
6
to 10 times : 10 seconds
20000
m
400
Ti
20000
(ERZC32EK751 to ERZC32EK112)
Ti
1000
800
600
1
2
2 times : 5 minutes
to 10 times : 2 minutes
6
to 10 times : 10 seconds
32 Series
1
2000
(ERZC32EK361 to ERZC32EK681)
2 times : 5 minutes
to 10 times : 2 minutes
6
to 10 times : 10 seconds
20000
4000
32 Series
Impulse Current (A)
32 Series
Tim
10 5
10 6
es
Tim
es
es
Tim
Tim
es
2
100
1000
Impulse Width (μs)
10000
20
100
1000
Impulse Width (μs)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
02
10000
Jan. 2015
“ZNR” Transient/Surge Absorbers (Type E)
Performance Characteristicsv (Type E)
Electrical
Characteristics
Test Methods/Description
Specifications
Standard Test
Condition
Electrical characteristics shall be measured at following conditions
(Temperature: 5 to 35 °C,Humidity: Max. 85 %)
———
Varistor Voltage
The voltage between two terminals with the specified measuring
current CmA DC applied is called Vc or VCmA. The measurement shall
be made as fast as possible to avoid heat affection.
Maximum Allowable
Voltage
The maximum sinusoidal wave voltage (rms) or the maximum DC
voltage that can be applied continuously.
Clamping Voltage
The maximum voltage between two terminals with the specified
standard impulse current (8/20 μs).
Rated Power
The maximum power that can be applied within the specified To meet the
ambient temperature.
specified value.
Energy
The maximum energy within the varistor voltage change of ±10 %
when one impulse of 2 ms is applied.
Maximum
Peak Current
The maximum current within the varistor voltage change of ±10 %
2 times with the standard impulse current (8/20 μs) applied two times with
an interval of 5 minutes.
1 time
Temperature Coefficient
of Varistor Voltage
Impulse Life
The maximum current within the varistor voltage change of ±10 %
with the standard impulse current (8/20 μs) applied one time.
VC at 70 °C – VC at 20 °C
1
×
× 100 (%/°C)
50
VC at 20 °C
0 to –0.05 %/°C max.
The change of Vc shall be measured after the impulse listed
below is applied 10000 times continuously with the interval of ten
seconds at room temperature.
ΔV1 mA /V1 mA < ±10 %
20 Series
32 Series
200 A (8/20 μs)
300 A (8/20 μs)
Mechanical
Withstanding Voltage The commercial frequency voltage of AC 2.5 kV shall be applied No remarkable
between terminals and the bottom of the unit for one minute.
damage
(Body Insulation)
Robustness of
Terminations
(Tensile)
After gradually applying the load of 49 N (5 kgf) and keeping the
unit fixed for 10 seconds in an axial direction, the terminal shall
be visually examined for any damage.
Vibration
After repeadly applying a single harmonic vibration (amplitude: No remarkable
0.75 mm): double amplitude: 1.5 mm with 1 minute vibration damage
frequency cycles (10 Hz to 55 Hz to 10 Hz) to each of three
perpendicular directions for 2 hours. Thereafter, the damage of
the terminals is visually examined.
Environmental
Dry Heat/ High
Temperature
Storage
The specimen shall be subjected to 110±3 °C for 500 hours
in a thermostatic bath without load and then stored at room
temperature and humidity for one to two hours. Thereafter, the
change of Vc shall be measured.
Step
1
2
3
4
Temperature (°C)
–25 –30
Room Temp.
85+30
Room Temp.
Period (minutes)
30+30
3 max.
30+30
3 max.
ΔV1 mA /V1 mA < ±5 %
Temperature Cycle
The temperature cycle shown below shall be repeated five No remarkable
times and then stored at room temperature and humidity for damage
one to two hours. The change of Vc and mechanical damage ΔV1 mA 1 mA
/V
< ±5 %
shall be examined.
Dry Heat Load/
High Temperature
Load
After being continuously applied the Maximum Allowable Voltage
at 85±5 °C for 500 hours, the specimen shall be stored at room ΔV1 mA /V1 mA ±10 %
<
temperature and humidity for one to two hours. Thereafter, the
change of Vc shall be measured.
The specimen shall be subjected to 40±2 °C, 90 to 95 %RH for
Damp Heat/Humidity 1000 hours without load and then stored at room temperature ΔV1 mA /V1 mA ±5 %
<
(Steady State)
and humidity for one to two hours. Thereafter, the change of Vc
shall be measured.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
02
Jan. 2015
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