NTE NTE2V075 Metal oxide varistors (mov) Datasheet

NTE1V010 thru NTE1V300
NTE2V010 thru NTEV480
NTE524V13 thru NTE524V48
Metal Oxide Varistors (MOV)
Description:
The NTE Metal Oxide Varistors feature a barrier layer that gives the user fast response time. These devices have a high
transient current handling capability when high voltage is applied. Static resistance is, however, very high under low voltage conditions, permitting low standby drain currents.
The NTE 1V Series Varistors have a non−linear voltage/current characteristic as expressed by the relationship:
I
Where I
V
K
n
=
=
=
=
=
KVn
The current in amperes
The voltage
A constant
A constant which shows the dependence of
the voltage V upon the current I. It is called
the voltage−dependant index
Features:
D High Transient Current Capability − up to 6500A
D Fast Response Time − less than 35ns
D Excellent Voltage Clamping Characteristics
D Very Low Temperature Coefficient
D Low Standby Current
D
D
D
D
D
High Energy Capability
The Value for “n” is Greater
Very Low Leakage Current
Low Capacitance
Low Overshoot Characteristics
Electrical Ratings:
Varistor Voltage
The voltage across the varistor at a DC current of 1.0mA.
Energy
The maximum electrical energy which can be dissipated within the varistor by a single impulse of 10 x 1000s current
waveform with continuous voltage applied. Energy ratings are based on a shift of varistor voltage of less than 10% of the
initial value. The unit is expressed in joules.
Peak Current
The maximum current allowable for a single pulse of 8 x 20s exponential waveform.
Operating Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 to +85C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 to +125C
Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 35ns
Voltage Temperature Coefficient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 0.05%/C
Non−Linear Exponent
NTE1V010 to NTE1V075, NTE2V010 to NTE2V075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 to 50
NTE1V095 to NTE1V300, NTE2V095 to NTE2V480, NTE524V13 to NTE542V48 . . . . . . . . . . greater than 40
Maximum Leakage Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10A
Rev. 4−13
Electrical Characteristics:
Maximum Ratings (TA = 25C)
Continuous
Characteristics
Transient
Peak Current
(8/20s)
(Amps)
Nominal
Varistor
Voltage
@ 1mA DC
Test Current
(Volts)
Maximum
Clamping
Voltage, VC
@ Test Current
(8/20s)
(Volts)
Transient
Power
Dissipation
(Watts)
RMS
Voltage
(Volts)
DC
Voltage
(Volts)
Energy
(10/1000s)
(Joules)
Vm (AC)
Vm (DC)
WTM
ITM
VNOM
VCL
PD
10
12
0.8
250
18
45
0.25
16mm
10
12
3.5
1000
18
45
0.60
8.5mm
14
18
1.2
250
22
55
0.25
16mm
14
18
4.0
1000
22
55
0.60
8.5mm
15
20
1.0
250
24
52
0.25
16mm
15
20
4.5
1000
24
48
0.60
8.5mm
17
22
1.3
250
27
60
0.25
16mm
17
22
5.0
1000
27
60
0.60
8.5mm
20
26
1.5
250
33
70
0.25
16mm
20
26
6.0
1000
33
70
0.60
8.5mm
25
31
1.7
250
39
80
0.25
16mm
25
31
7.0
1000
39
80
0.60
8.5mm
30
38
2.3
250
47
95
0.25
16mm
30
38
8.5
1000
47
95
0.60
8.5mm
35
45
2.7
250
56
110
0.25
16mm
35
45
10.0
1000
56
110
0.60
8.5mm
40
55
3.2
250
68
135
0.25
16mm
40
55
13.0
1000
68
135
0.60
1V050
8.5mm
50
66
4.0
250
82
150
0.25
2V050
16mm
50
66
14.0
1000
82
150
0.60
1V060
8.5mm
60
80
6.0
1200
100
175
0.25
2V060
16mm
60
80
18.0
4500
100
175
0.60
1V075
8.5mm
75
95
5.0
1200
120
205
0.25
2V075
16mm
75
95
21.0
4500
120
205
0.60
1V095
8.5mm
95
125
7.0
1200
150
250
0.25
2V095
16mm
95
125
29.0
4500
150
250
0.60
1V115
8.5mm
115
150
10.0
1200
171
295
0.25
2V115
16mm
115
150
35.0
4500
171
300
0.60
1V130
8.5mm
135
180
10.0
1200
216
355
0.25
2V130
16mm
135
180
39.0
4500
216
355
0.60
524V13
23mm
135
180
72.0
6500
216
355
1.00
1V150
8.5mm
135
210
10.0
1200
240
410
0.25
NTE Type
Number
Case Diameter
1V010
8.5mm
2V010
1V014
2V014
1V015
2V015
1V017
2V017
1V020
2V020
1V025
2V025
1V030
2V030
1V035
2V035
1V040
2V040
2V150
16mm
160
210
40.0
4500
240
410
0.60
524V15
23mm
160
210
80.0
6500
240
410
1.00
1V175
8.5mm
170
225
12.0
1200
270
450
.025
524V17
23mm
170
225
90.0
6500
270
450
1.00
1V250
8.5mm
250
320
20.0
1200
390
630
0.25
2V250
16mm
250
320
70.0
4500
390
630
0.60
524V25
23mm
250
320
129.0
6500
390
630
1.00
1V275
8.5mm
275
330
20.0
1200
430
685
0.25
2V275
16mm
275
330
72.0
4500
430
685
0.60
524V27
23mm
275
330
135.0
6500
430
685
1.00
Electrical Characteristics (Cont’d):
Maximum Ratings (TA = 25C)
Continuous
NTE Type
Number
Case Diameter
1V300
8.5mm
Characteristics
Transient
RMS
Voltage
(Volts)
DC
Voltage
(Volts)
Vm (AC)
Vm (DC)
300
370
Peak Current
(8/20s)
(Amps)
Nominal
Varistor
Voltage
@ 1mA DC
Test Current
(Volts)
WTM
ITM
VNOM
VCL
PD
22.0
1200
470
740
0.25
Energy
(10/1000s)
(Joules)
Maximum
Clamping
Voltage, VC
@ Test Current
(8/20s)
(Volts)
Transient
Power
Dissipation
(Watts)
2V300
16mm
300
370
79.0
4500
470
740
0.60
524V30
23mm
300
370
149.0
6500
470
740
1.00
2V420
16mm
420
560
90.0
4500
680
1110
0.60
524V42
23mm
420
560
160.0
6500
680
1110
1.00
2V480
16mm
480
640
105.0
4500
750
1240
0.60
524V48
23mm
480
640
180.0
6500
750
1240
1.00
Cautions:
NTE varistors short−circuit when subjected to surges beyond their peak current and energy ratings.
NTE varistors short−circuit when operated at steady−state voltages well beyond their voltage ratings, which may eventually result in open−circuiting leaving the circuit without protection.
The following precautions should be taken to minimize this potential hazard:
D
D
D
Fusing the varistor to limit high fault currents.
Protecting the surrounding circuitry by physical shielding.
Locating the varistor away from other components.
Typical Power Supply Circuit
100H
D
+
0.1F
150F
−
D
LS
LL
L
LD
H
D
H
1V Series
.345
(9.0)
.235
(6.0)
2V Series
.699 .275
(17.8) (7.0)
524V Series .945 .291
(24.0) (7.4)
L
LL
LS
LD
.475 1.000 .200 .024
(12.0) (25.4) (5.08) (0.6)
.787 1.000 .315
(20.0) (25.4) (8.0)
.031
(0.8)
1.230 1.063 .394 .039
(31.0) (27.0) (10.0) (1.0)