Varistors (ZNR Surge Absorber) Type E
Varistors (ZNR Surge Absorber)
Type: E
Varistors (ZNR Surge Absorber) 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
●UL and CSA recognized components
●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
Related Standards
Standard No.
Title
UL1449
Surge Protective Devices
Accessories and Parts for Electronic Products
(Varistor for Across-The-Line use as transient
protection on 120 V ac nominal system)
CSA C22.2 No.269.5
●Each type designation is not registered by Part Number.
Note : Ask our factory for Product Specification before use.
■As for Handling Precautions and Minimum Quantity / Packing Unit
Please see Related Information
Explanation of Part Numbers
1
2
3
4
5
6
7
8
9
10
11
12
Ｅ
Ｒ
Ｚ
Ｃ
E
Type
Ｋ
Tolerance
Design No.
General
Product Code
Element Size
Nominal Varistor
Voltage
Y
―
UL/CSA Recognized
Dimensions in mm (not to scale)
24
ISO
M4
4.3
L
W
12
5
Part No.
W
H
L
ERZC20EK□□□(Y) 48±1 42±1 39±1
ERZC32EK□□□(Y) 60±1 55±1 51±1
H
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.
14-Dec-20
Varistors (ZNR Surge Absorber) Type E
Series 20 (UL and CSA Recognized)
Ratings and Characteristics(ERZC20EK)
●Operating Temperature Range : -40 to 85 ℃
●Storage Temperature Range : -40 to 110 ℃
Maximum
Allowable
Voltage
ACrms(Ｖ)
130
150
175
230
250
275
300
320
385
420
460
485
510
550
625
680
DC(Ｖ)
170
200
225
300
320
350
385
415
505
560
615
640
670
745
825
895
Maximum
Clamping
Voltage
V
100 A
(V)
*340
*395
*455
*595
*650
*710
*775
*845
1025
1120
1240
1290
1355
1500
1650
1815
Maximum
Energy
Maximum
Peak
Current
Part No.
（UL/CSA
Recognized）
ERZC20EK201Y
ERZC20EK241Y
ERZC20EK271Y
ERZC20EK361Y
ERZC20EK391Y
ERZC20EK431Y
ERZC20EK471Y
ERZC20EK511Y
ERZC20EK621Y
ERZC20EK681Y
ERZC20EK751Y
ERZC20EK781Y
ERZC20EK821Y
ERZC20EK911Y
ERZC20EK102Y
ERZC20EK112Y
Type
Designation
Varistor
Voltage
Ｖ
1 ½Ａ
(Ｖ)
(2ms)
(J)
80
95
100
120
130
140
150
150
160
175
190
200
215
240
245
250
1 time
(8/20μs)
1 time
（A）
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
Rated
Voltage
(UL/CSA)
ACrms(Ｖ)
118
136
159
209
227
250
272
291
350
381
418
440
463
500
568
600
20EK201U
20EK241U
20EK271U
20EK361U
20EK391U
20EK431U
20EK471U
20EK511U
20EK621U
20EK681U
20EK751U
20EK781U
20EK821U
20EK911U
20EK102U
20EK112U
200 (185 to 225)
240 (216 to 264)
270 (247 to 303)
360 (324 to 396)
390 (351 to 429)
430 (387 to 473)
470 (423 to 517)
510 (459 to 561)
620 (558 to 682)
680 (612 to 748)
750 (675 to 825)
780 (702 to 858)
820 (738 to 902)
910 (819 to 1001)
1000 (900 to 1100)
1100 (990 to 1210)
Series 32 (UL and CSA Recognized)
Ratings and Characteristics(ERZC32EK)
●Operating Temperature Range : -40 to 85 ℃
●Storage Temperature Range : -40 to 110 ℃
Maximum
Allowable
Voltage
ACrms(Ｖ)
130
150
175
230
250
275
300
320
385
420
460
485
510
550
625
680
DC(Ｖ)
170
200
225
300
320
350
385
415
505
560
615
640
670
745
825
895
Maximum
Clamping
Voltage
V
100 A
(V)
*340
*395
*455
*595
*650
*710
*775
*845
1025
1120
1240
1290
1355
1500
1650
1815
Maximum
Energy
Maximum
Peak
Current
Part No.
（UL/CSA
Recognized）
ERZC32EK201Y
ERZC32EK241Y
ERZC32EK271Y
ERZC32EK361Y
ERZC32EK391Y
ERZC32EK431Y
ERZC32EK471Y
ERZC32EK511Y
ERZC32EK621Y
ERZC32EK681Y
ERZC32EK751Y
ERZC32EK781Y
ERZC32EK821Y
ERZC32EK911Y
ERZC32EK102Y
ERZC32EK112Y
Type
Designation
Varistor
Voltage
Ｖ
1 ½Ａ
(Ｖ)
(2ms)
(J)
210
240
255
325
350
400
405
405
415
450
500
520
545
600
620
640
1 Time
(8/20μs)
1 Time
（A）
25000
25000
25000
25000
25000
25000
25000
25000
25000
25000
25000
25000
25000
25000
25000
25000
Rated
Voltage
(UL/CSA)
ACrms(Ｖ)
118
136
159
209
227
250
272
291
350
381
418
440
463
500
568
600
32EK201U
32EK241U
32EK271U
32EK361U
32EK391U
32EK431U
32EK471U
32EK511U
32EK621U
32EK681U
32EK751U
32EK781U
32EK821U
32EK911U
32EK102U
32EK112U
200 (185 to 225)
240 (216 to 264)
270 (247 to 303)
360 (324 to 396)
390 (351 to 429)
430 (387 to 473)
470 (423 to 517)
510 (459 to 561)
620 (558 to 682)
680 (612 to 748)
750 (675 to 825)
780 (702 to 858)
820 (738 to 902)
910 (819 to 1001)
1000 (900 to 1100)
1100 (990 to 1210)
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.
14-Dec-20
Varistors (ZNR Surge Absorber) Type E
Series 20
Ratings and Characteristics(ERZC20EK)
●Operating Temperature Range : -40 to 85 ℃
●Storage Temperature Range : -40 to 110 ℃
Maximum
Allowable
Voltage
ACrms(Ｖ)
130
150
175
230
250
275
300
320
385
420
460
485
510
550
625
680
DC(Ｖ)
170
200
225
300
320
350
385
415
505
560
615
640
670
745
825
895
Maximum
Clamping
Voltage
V
100 A
(V)
*340
*395
*455
*595
*650
*710
*775
*845
1025
1120
1240
1290
1355
1500
1650
1815
Maximum
Energy
Part No.
Varistor
Voltage
Ｖ
1 ½Ａ
(Ｖ)
Rated
Power
(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
(2ms)
(J)
80
95
100
120
130
140
150
150
160
175
190
200
215
240
245
250
Maximum
Peak Current
(8/20 μs)
1 time 2 times
（A）
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
8000
（A）
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
Typical
Capacitance
(Reference)
at 1 kHz (pF)
2300*
1500*
1400*
1300*
1200*
1000*
950
930
900
850
800
800
700
700
400
350
ERZC20EK201
ERZC20EK241
ERZC20EK271
ERZC20EK361
ERZC20EK391
ERZC20EK431
ERZC20EK471
ERZC20EK511
ERZC20EK621
ERZC20EK681
ERZC20EK751
ERZC20EK781
ERZC20EK821
ERZC20EK911
ERZC20EK102
ERZC20EK112
200 (185 to 225)
240 (216 to 264)
270 (247 to 303)
360 (324 to 396)
390 (351 to 429)
430 (387 to 473)
470 (423 to 517)
510 (459 to 561)
620 (558 to 682)
680 (612 to 748)
750 (675 to 825)
780 (702 to 858)
820 (738 to 902)
910 (819 to 1001)
1000 (900 to 1100)
1100 (990 to 1210)
Series 32
Ratings and Characteristics(ERZC32EK)
●Operating Temperature Range : -40 to 85 ℃
●Storage Temperature Range : -40 to 110 ℃
Maximum
Allowable
Voltage
ACrms(Ｖ)
130
150
175
230
250
275
300
320
385
420
460
485
510
550
625
680
DC(Ｖ)
170
200
225
300
320
350
385
415
505
560
615
640
670
745
825
895
Maximum
Clamping
Voltage
V
100 A
(V)
*340
*395
*455
*595
*650
*710
*775
*845
1025
1120
1240
1290
1355
1500
1650
1815
Maximum
Energy
Part No.
Varistor
Voltage
Ｖ
1 ½Ａ
(Ｖ)
Rated
Power
(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
(2ms)
(J)
210
240
255
325
350
400
405
405
415
450
500
520
545
600
620
640
Maximum
Peak Current
(8/20 μs)
1 time 2 times
（A）
（A）
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
25000 20000
Typical
Capacitance
(Reference)
at 1 kHz (pF)
5500
5000
4200
3500
3000
2500
2500
2400
2200
2100
2000
1900
1800
1700
1000
*800
ERZC32EK201
ERZC32EK241
ERZC32EK271
ERZC32EK361
ERZC32EK391
ERZC32EK431
ERZC32EK471
ERZC32EK511
ERZC32EK621
ERZC32EK681
ERZC32EK751
ERZC32EK781
ERZC32EK821
ERZC32EK911
ERZC32EK102
ERZC32EK112
200 (185 to 225)
240 (216 to 264)
270 (247 to 303)
360 (324 to 396)
390 (351 to 429)
430 (387 to 473)
470 (423 to 517)
510 (459 to 561)
620 (558 to 682)
680 (612 to 748)
750 (675 to 825)
780 (702 to 858)
820 (738 to 902)
910 (819 to 1001)
1000 (900 to 1100)
1100 (990 to 1210)
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.
14-Dec-20
Varistors (ZNR Surge Absorber) Type E
Typical Characteristics(Type E)
(ERZC20EK201(Y) to ERZC20EK511(Y))
Voltage vs. Current
2000
Max.Leakage
Current
Max.Clamping Voltage
ERZC20EK511(Y)
ERZC20EK471(Y)
ERZC20EK431(Y)
ERZC20EK391(Y)
ERZC20EK361(Y)
ERZC20EK271(Y)
ERZC20EK241(Y)
ERZC20EK201(Y)
1000
900
800
700
600
500
Voltage（V)
400
300
200
100
90
80
70
60
50
40
30
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
Test current waveform
10
–6
to 10
–3
A: Direct current
10
–1
to 10
4
A: 8/20 μs
10
1
10
2
10
3
10
4
10
5
Current（A)
(ERZC20EK621(Y) to ERZC20EK112(Y))
4000
3000
Max.Leakage
Current
Max.Clamping Voltage
ERZC20EK112(Y)
ERZC20EK102(Y)
ERZC20EK911(Y)
ERZC20EK821(Y)
ERZC20EK781(Y)
ERZC20EK751(Y)
ERZC20EK681(Y)
ERZC20EK621(Y)
2000
Voltage（V)
1000
900
800
700
600
500
400
300
200
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
10
5
Test current waveform
10
–6
to 10
–3
A: Direct current
10
–1
to 10
4
A: 8/20 μs
Current（A)
Impulse Derating Curve (Relation be tween impulse width and surge, repetitively)
Series 20
10000
8000
6000
4000
2000
1000
800
600
Impulse Current（A)
Impulse Current（A)
400
200
100
80
60
40
20
10
8
6
4
2
1
20
100
1000
10000
Series 20
2 times：5 min. interval
up to 10 times：2 min. interval
up to 10
6
times : 10 sec. interval
Series 20
2 times：5 min. interval
up to 10 times：2 min. interval
up to 10
6
times : 10 sec. interval
(ERZC20EK201(Y) to ERZC20EK271(Y))
10000
8000
6000
4000
2000
1000
800
600
400
200
100
80
60
40
20
10
8
6
4
2
1
20
(ERZC20EK361(Y) to ERZC20EK681(Y))
10000
8000
6000
4000
2000
1000
800
600
400
200
100
80
60
40
20
10
8
6
4
2
(ERZC20EK751(Y) to ERZC20EK112(Y))
2 times：5 min. interval
up to 10 times：2 min. interval
up to 10
6
times : 10 sec. interval
Impulse Current（A)
100
1000
10000
1
20
100
1000
Impulse Width（μs）
10000
Impulse Width（μs）
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.
14-Dec-20
Varistors (ZNR Surge Absorber) Type E
Typical Characteristics(Type E)
(ERZC32EK201(Y) to ERZC32EK511(Y))
Voltage vs. Current
2000
Max.Leakage
Current
Max.Clamping Voltage
ERZC32EK511(Y)
ERZC32EK471(Y)
ERZC32EK431(Y)
ERZC32EK391(Y)
ERZC32EK361(Y)
ERZC32EK271(Y)
ERZC32EK241(Y)
ERZC32EK201(Y)
1000
900
800
700
600
Voltage（V)
500
400
300
200
100
90
80
70
60
50
40
30
10
-6
Test current waveform
10
–6
to 10
–3
A: Direct current
10
–1
to 10
4
A: 8/20 μs
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
10
5
Current（A)
(ERZC32EK621(Y) to ERZC32EK112(Y))
4000
3000
Max.Leakage
Current
Max.Clamping Voltage
2000
ERZC32EK112(Y)
ERZC32EK102(Y)
ERZC32EK911(Y)
ERZC32EK821(Y)
ERZC32EK781(Y)
ERZC32EK751(Y)
ERZC32EK681(Y)
ERZC32EK621(Y)
Voltage（V)
1000
900
800
700
600
500
400
300
200
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
10
4
10
5
Test current waveform
10
–6
to 10
–3
A: Direct current
10
–1
to 10
4
A: 8/20 μs
Current（A)
Impulse Derating Curve (Relation be tween impulse width and surge, repetitively)
Series 32
(ERZC32EK201(Y) to ERZC32EK271(Y))
20000
10000
8000
6000
4000
2000
1000
800
600
400
200
100
80
60
40
20
10
8
6
4
2
20
100
1000
10000
2 times：5 min. interval
up to 10 times：2 min. interval
up to 10
6
times : 10 sec. interval
20000
10000
8000
6000
4000
2000
1000
800
600
400
200
100
80
60
40
20
10
8
6
4
2
20
100
1000
10000
Series 32
(ERZC32EK361(Y) to ERZC32EK681(Y))
2 times：5 min. interval
up to 10 times：2 min. interval
up to 10
6
times : 10 sec. interval
20000
10000
8000
6000
4000
2000
1000
800
600
400
200
100
80
60
40
20
10
8
6
4
2
Series 32
(ERZC32EK751(Y) to ERZC32EK112(Y))
2 times：5 min. interval
up to 10 times：2 min. interval
up to 10
6
times : 10 sec. interval
Impulse Current
Impulse Current
Impulse Current
20
100
1000
10000
Impulse Width（μs）
Impulse Width（μs）
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.
14-Dec-20
模拟与混合信号
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
