Owner manual

© 2014 Littelfuse, Inc.
143
Revised: February 13, 2014
Varistor Products
ZA Varistor Series
Radial Lead Varistors > ZA Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za.html for current information.
ZA Series
Maximum Clamping Voltage for 20mm Parts
V18ZA20(P) - V36ZA80(P)
Repetitive Surge Capability for 5mm Parts
V39ZA20(P) - V180ZA20(P)
V8ZA05(P)
V12ZA05(P) - V68ZA05(P)
V82ZA05(P) - V750ZA05(P)
FIGURE 11. CLAMPING VOLTAGE FOR V82ZA12(P) - V180ZA10(P) FIGURE 12. CLAMPING VOLTAGE FOR V18ZA40(P) - V36ZA80(P)
FIGURE 13. CLAMPING VOLTAGE FOR V39ZA20(P) - V180ZA20(P)
Transient V-I Characteristic Curves (Continued)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 14mm
82 TO 180V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
V180ZA10(P)
V150ZA8(P)
V120ZA6(P)
V100ZA15(P)
V82ZA12(P)
300
200
100
90
80
70
60
50
40
30
20
MAXIMUM PEAK VOLTS (V) MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
10
4
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
18 TO 36V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
V36ZA20(P) V36ZA80(P)
V33ZA20(P) V33ZA70(P)
V27ZA60(P) V27ZA60(P)
V24ZA50(P) V24ZA50(P)
V18ZA40P(P) V18ZA40P(P)
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
4
10
3
1,000
500
300
200
30
PEAK AMPERES (A)
MAXIMUM PEAK VOLTS (V)
V56ZA20(P)
V47ZA20(P)
V39ZA20(P)
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
T
A
= -55
o
C TO 85
o
C
39 TO 180V
M(AC )
RATING
V180ZA20(P)
V150ZA20(P)
V120ZA20(P)
100
50
V68ZA20(P)
Pulse Rating Curves
FIGURE 14. SURGE CURRENT RATING CURVES FOR V8ZA05 (P) FIGURE 15. SURGE CURRENT RATING CURVES FOR
V12ZA05(P) - V68ZA05(P)
50
20
10
5
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
IMPULSE DURATION (μs)
1
10
10
2
2
10
3
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V8ZA05(P)
100
50
20
10
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V12ZA05(P) - V68ZA05(P)
1
10
10
2
2
10
3
IMPULSE DURATION (μs)
FIGURE 11. CLAMPING VOLTAGE FOR V82ZA12(P) - V180ZA10(P) FIGURE 12. CLAMPING VOLTAGE FOR V18ZA40(P) - V36ZA80(P)
FIGURE 13. CLAMPING VOLTAGE FOR V39ZA20(P) - V180ZA20(P)
Transient V-I Characteristic Curves (Continued)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 14mm
82 TO 180V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
V180ZA10(P)
V150ZA8(P)
V120ZA6(P)
V100ZA15(P)
V82ZA12(P)
300
200
100
90
80
70
60
50
40
30
20
MAXIMUM PEAK VOLTS (V) MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
10
4
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
18 TO 36V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
V36ZA20(P) V36ZA80(P)
V33ZA20(P) V33ZA70(P)
V27ZA60(P) V27ZA60(P)
V24ZA50(P) V24ZA50(P)
V18ZA40P(P) V18ZA40P(P)
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
4
10
3
1,000
500
300
200
30
PEAK AMPERES (A)
MAXIMUM PEAK VOLTS (V)
V56ZA20(P)
V47ZA20(P)
V39ZA20(P)
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
T
A
= -55
o
C TO 85
o
C
39 TO 180V
M(AC )
RATING
V180ZA20(P)
V150ZA20(P)
V120ZA20(P)
100
50
V68ZA20(P)
Pulse Rating Curves
FIGURE 14. SURGE CURRENT RATING CURVES FOR V8ZA05 (P) FIGURE 15. SURGE CURRENT RATING CURVES FOR
V12ZA05(P) - V68ZA05(P)
50
20
10
5
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
IMPULSE DURATION (μs)
1
10
10
2
2
10
3
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V8ZA05(P)
100
50
20
10
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V12ZA05(P) - V68ZA05(P)
1
10
10
2
2
10
3
IMPULSE DURATION (μs)
FIGURE 11. CLAMPING VOLTAGE FOR V82ZA12(P) - V180ZA10(P) FIGURE 12. CLAMPING VOLTAGE FOR V18ZA40(P) - V36ZA80(P)
FIGURE 13. CLAMPING VOLTAGE FOR V39ZA20(P) - V180ZA20(P)
Transient V-I Characteristic Curves (Continued)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 14mm
82 TO 180V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
V180ZA10(P)
V150ZA8(P)
V120ZA6(P)
V100ZA15(P)
V82ZA12(P)
300
200
100
90
80
70
60
50
40
30
20
MAXIMUM PEAK VOLTS (V) MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
10
4
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
18 TO 36V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
V36ZA20(P) V36ZA80(P)
V33ZA20(P) V33ZA70(P)
V27ZA60(P) V27ZA60(P)
V24ZA50(P) V24ZA50(P)
V18ZA40P(P) V18ZA40P(P)
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
4
10
3
1,000
500
300
200
30
PEAK AMPERES (A)
MAXIMUM PEAK VOLTS (V)
V56ZA20(P)
V47ZA20(P)
V39ZA20(P)
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
T
A
= -55
o
C TO 85
o
C
39 TO 180V
M(AC )
RATING
V180ZA20(P)
V150ZA20(P)
V120ZA20(P)
100
50
V68ZA20(P)
Pulse Rating Curves
FIGURE 14. SURGE CURRENT RATING CURVES FOR V8ZA05 (P) FIGURE 15. SURGE CURRENT RATING CURVES FOR
V12ZA05(P) - V68ZA05(P)
50
20
10
5
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
IMPULSE DURATION (μs)
1
10
10
2
2
10
3
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V8ZA05(P)
100
50
20
10
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V12ZA05(P) - V68ZA05(P)
1
10
10
2
2
10
3
IMPULSE DURATION (μs)
FIGURE 11. CLAMPING VOLTAGE FOR V82ZA12(P) - V180ZA10(P) FIGURE 12. CLAMPING VOLTAGE FOR V18ZA40(P) - V36ZA80(P)
FIGURE 13. CLAMPING VOLTAGE FOR V39ZA20(P) - V180ZA20(P)
Transient V-I Characteristic Curves (Continued)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 14mm
82 TO 180V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
V180ZA10(P)
V150ZA8(P)
V120ZA6(P)
V100ZA15(P)
V82ZA12(P)
300
200
100
90
80
70
60
50
40
30
20
MAXIMUM PEAK VOLTS (V) MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
10
4
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
18 TO 36V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
V36ZA20(P) V36ZA80(P)
V33ZA20(P) V33ZA70(P)
V27ZA60(P) V27ZA60(P)
V24ZA50(P) V24ZA50(P)
V18ZA40P(P) V18ZA40P(P)
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
4
10
3
1,000
500
300
200
30
PEAK AMPERES (A)
MAXIMUM PEAK VOLTS (V)
V56ZA20(P)
V47ZA20(P)
V39ZA20(P)
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
T
A
= -55
o
C TO 85
o
C
39 TO 180V
M(AC )
RATING
V180ZA20(P)
V150ZA20(P)
V120ZA20(P)
100
50
V68ZA20(P)
Pulse Rating Curves
FIGURE 14. SURGE CURRENT RATING CURVES FOR V8ZA05 (P) FIGURE 15. SURGE CURRENT RATING CURVES FOR
V12ZA05(P) - V68ZA05(P)
50
20
10
5
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
IMPULSE DURATION (μs)
1
10
10
2
2
10
3
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V8ZA05(P)
100
50
20
10
2
1
0.5
0.2
0.1
SURGE CURRENT (A)
20 100 1,000 10,000
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V12ZA05(P) - V68ZA05(P)
1
10
10
2
2
10
3
IMPULSE DURATION (μs)
FIGURE 16. SURGE CURRENT RATING CURVES FOR
V82ZA05(P) - V750ZA05(P)
FIGURE 17. SURGE CURRENT RATING CURVES FOR
V8ZA1(P) - V12ZA1(P)
FIGURE 18. SURGE CURRENT RATING CURVES FOR
V18ZA1(P) - V68ZA2(P)
FIGURE 19. SURGE CURRENT RATING CURVES FOR
V82ZA2(P) - V180ZA1(P)
FIGURE 20. SURGE CURRENT RATING CURVES FOR
V8ZA2(P) - V127ZA2(P)
FIGURE 21. SURGE CURRENT RATING CURVES FOR
V18ZA2(P) - V68ZA3(P)
50
20
10
5
2
1
0.5
0.2
SURGE CURRENT (A)
20 100 1,000 10,000
IMPULSE DURATION ( µs)
1
10
10
2
2
10
3
INDEFINITE
10
4
10
5
10
6
MODEL SIZE 5mm
V82ZA05(P) - V750ZA05(P)
500
200
100
20 100 1,000 10,000
IMPULSE DURATION ( µs)
SURGE CURRENT (A)
1
10
10
2
2
10
3
INDEFINITE
10
4
10
5
10
6
200
100
50
20
10
5
2
1
0.5
0.2
MODEL SIZE 7mm
V8ZA1(P) - V12ZA1(P)
20 100 1,000 10,000
IMPULSE DURATION ( µs)
SURGE CURRENT (A)
1
10
10
2
2
10
3
INDEFINITE
500
200
100
50
20
10
2
1
0.5
0.2
10
4
10
5
10
6
5
MODEL SIZE 7mm
V18ZA1(P) - V68ZA2(P)
2,000
1,000
200
100
50
20
10
5
1
2
500
20 100 1,000 10,000
IMPULSE DURATION ( µs)
SURGE CURRENT (A)
1
2
10
10
2
10
4
10
5
10
6
10
3
INDEFINITE
MODEL SIZE 7mm
V82ZA2(P) - V180ZA1(P)
20 100 1,000 10,000
IMPULSE DURATION ( µs)
SURGE CURRENT (A)
1
10
10
2
2
10
3
INDEFINITE
500
200
100
50
20
10
2
1
0.5
0.2
10
4
10
5
10
6
5
MODEL SIZE 10mm
V8ZA2(P) - V12ZA2(P)
1,000
500
100
50
20
10
5
1
2
200
20
SURGE CURRENT (A)
1
2
10
5
10
6
10
4
INDEFINITE
MODEL SIZE 10mm
V18ZA2(P) - V68ZA3(P)
100 1,000 10,000
IMPULSE DURATION ( µs)
10
2
10
3
Figure 11 Figure 12
Figure 13 Figure 14
Figure 15