LITTELFUSE V47ZA7

Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
D
V
E
®
The ZA Series of transient voltage surge suppressors are radial-lead
varistors (MOVs) designed for use in the protection of low and mediumvoltage circuits and systems. Typical applications include motor control,
telecom, automotive systems, solenoid, and power supply circuits to
protect circuit board components and maintain data integrity.
These devices are available in five model sizes: 5mm, 7mm, 10mm,
14mm and 20mm, and feature a wide VDC voltage range of 5.5V to 615V.
See ZA Series Device Ratings and Specifications table for part number
and brand information.
2
Features
VARISTOR
PRODUCTS
• Lead-free and RoHS compliant option available. Please see the
device and ratings specifications table for more information.
• Wide Operating Voltage Range VM(AC)RMS . . . . . . . . . .4V to 460V
• DC Voltage Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5V to 615V
• No Derating Up to 85oC Ambient
• 5 Model Sizes Available . . . . . 5, 7, 10, 14, and 20mm
NEW LEAD-FREE AND
RoHS COMPLIANT PARTS
AVAILABLE
• Radial-Lead Package for Hard-Wired or Printed Circuit
Board Designs
• Available in Tape and Reel or Bulk Pack
• Standard Lead Form Options
AGENCY APPROVALS FOR STANDARD PARTS:
Recognized under the components program of Underwriters Laboratories.
CECC and VDE certified.
Agency File Numbers: UL E135010, UL E75961, VDE 116895E, CECC
42201.
AGENCY APPROVALS FOR LEAD-FREE AND RoHS COMPLIANT PARTS:
Selected parts recognized under the components program of Underwriters
Laboratories and other parts pending approval. All parts CECC and VDE certified. See details below.
Agency File Numbers: UL E135010 (pending approval), UL E75961
(selected parts recognized), VDE 116895E, CECC 42201-006.
w w w. l i t t e l f u s e . c o m
67
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
Absolute Maximum Ratings For ratings of individual members of a series, see Device Ratings and Specifications chart.
Continuous:
ZA SERIES
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 460
DC Voltage Range (VM(DC)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 to 615
Transient:
Peak Pulse Current (ITM)
For 8/20µs Current Wave (See Figure 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 to 6500
Single Pulse Energy Range (Note 1)
For 10/1000µs Current Wave (WTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 to 52
Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to85
Storage Temperature Range (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to125
Temperature Coefficient ( V) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500
UNITS
V
V
A
J
C
o
C
%/oC
V
o
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000
MΩ
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device
at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Device Ratings and Specifications
(Note 1)
MAXIMUM RATING (85 oC)
RoHS Pb
LEAD-FREE
AND RoHS
COMPLIANT
MODELS
PART
NUMBER
BRANDING
CONTINUOUS
STANDARD
MODELS
PART
NUMBER
MODEL
SIZE
DISC
BRANDING DIA. (mm)
SPECIFICATIONS (25 oC)
TRANSIENT
VRMS
VDC
ENERGY 10
x 1000µs
PEAK
CURRENT
8 x 20µs
VM(AC)
VM(DC)
WTM
ITM
(V)
(V)
(J)
(A)
VARISTOR VOLTAGE AT 1mA DC
TEST CURRENT
VNOM
MAX
VNOM
MIN
(V)
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
TYPICAL
CAPACITANCE
f = 1MHz
VC
IPK
C
(V)
(A)
(pF)
V8ZA05P
PZ08
V8ZA05
Z08
5
4
5.5
0.1
50
6
11
30
1
1400
V8ZA1P
P08Z1
V8ZA1
08Z1
7
4
5.5
0.4
100
6
11
22
2.5
3000
V8ZA2P
P08Z2
V8ZA2
08Z2
10
4
5.5
0.8
250
6
11
20
5
7500
V12ZA05P
PZ12
V12ZA05
Z12
5
6
8
0.14
50
9
16
37
1
1200
V12ZA1P
P12Z1
V12ZA1
12Z1
7
6
8
0.6
100
9
16
34
2.5
2500
V12ZA2P
P12Z2
V12ZA2
12Z2
10
6
8
1.2
250
9
16
30
5
6000
V18ZA05P
PZ18
V18ZA05
Z18
5
10
14
0.17
100
14.4
21.6
36
1
1000
V18ZA1P
P18Z1
V18ZA1
18Z1
7
10
14
0.8
250
14.4
21.6
36
2.5
2000
V18ZA2P
P18Z2
V18ZA2
18Z2
10
10
14
1.5
500
14.4
21.6
36
5
5000
V18ZA3P
P18Z3
V18ZA3
18Z3
14
10
14
3.5
1000
14.4
21.6
36
10
11000
V18ZA40P
P18Z40
V18ZA40
18Z40
20
10
14
80 (Note 2)
2000
14.4
(Note 3)
21.6
37
20
22000
V22ZA05P
PZ22
V22ZA05
Z22
5
14
18
0.2
100
18.7
26
43
1
800
V22ZA1P
P22Z1
V22ZA1
22Z1
7
14
18
0.9
250
18.7
26
43
2.5
1600
V22ZA2P
P22Z2
V22ZA2
22Z2
10
14
18
2
500
18.7
26
43
5
4000
V22ZA3P
P22Z3
V22ZA3
22Z3
14
14
18
4
1000
18.7
26
43
10
9000
V24ZA50P
P24Z50
V24ZA50
24Z50
20
14
18
(Note 4)
100 (Note 2)
2000
19.2
(Note 3)
26
43
20
18000
V27ZA05P
PZ27
V27ZA05
Z27
5
17
22
0.25
100
23
31.1
53
1
600
V27ZA1P
P27Z1
V27ZA1
27Z1
7
17
22
1
250
23
31.1
53
2.5
1300
V27ZA2P
P27Z2
V27ZA2
27Z2
10
17
22
2.5
500
23
31.1
53
5
3000
V27ZA4P
P27Z4
V27ZA4
27Z4
14
17
22
5
1000
23
31.1
53
10
7000
V27ZA60P
P27Z60
V27ZA60
27Z60
20
17
22
120 (Note 2)
2000
23
(Note 3)
31.1
50
20
13000
See Page 70 for NOTES
68
w w w. l i t t e l f u s e . c o m
Varistor Products
Low to Medum Voltage, Radial Lead
Pb
ZA Varistor Series
Device Ratings and Specifications
RoHS Pb
LEAD-FREE
AND RoHS
COMPLIANT
MODELS
PART
NUMBER
BRANDING
(Note 1) (Continued)
MAXIMUM RATING (85 oC)
CONTINUOUS
STANDARD
MODELS
PART
NUMBER
MODEL
SIZE
DISC
BRANDING DIA. (mm)
5
VARISTOR VOLTAGE AT 1mA DC
TEST CURRENT
VRMS
VDC
ENERGY 10
x 1000µs
PEAK
CURRENT
8 x 20µs
VM(AC)
VM(DC)
WTM
ITM
(V)
(V)
(J)
(A)
20
26
0.3
100
29.5
VNOM
MIN
VNOM
MAX
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
TYPICAL
CAPACITANCE
f = 1MHz
VC
IPK
C
(V)
(A)
(pF)
38
65
1
500
1100
(V)
PZ33
V33ZA05
V33ZA1P
P33Z1
V33ZA1
33Z1
7
20
26
1.2
250
29.5
36.5
65
2.5
V33ZA2P
P33Z2
V33ZA2
33Z2
10
20
26
3
500
29.5
36.5
65
5
2700
V33ZA5P
P33Z5
V33ZA5
33Z5
14
20
26
6
1000
29.5
36.5
65
10
6000
V33ZA70P
P33Z70
V33ZA70
33Z70
20
21
27
150 (Note 2)
2000
29.5
(Note 3)
36.5
58
20
13000
V36ZA80P
P36Z80
V36ZA80
36Z80
20
23
31
160 (Note 2)
2000
32
(Note 3)
40
63
20
12000
V39ZA05P
PZ39
V39ZA05
Z39
5
25
31
0.3
100
35
46
79
1
500
V39ZA1P
P39Z1
V39ZA1
39Z1
7
25
31
1.2
250
35
43
79
2.5
1100
V39ZA3P
P39Z3
V39ZA3
39Z3
10
25
31
3
500
35
43
76
5
2700
V39ZA6P
P39Z6
V39ZA6
39Z6
14
25
31
6
1000
35
43
76
10
6000
V39ZA20P
P39Z20
V39ZA20
39Z20
20
25
31
20
2000
35
43
76
20
12000
V47ZA05P
PZ47
V47ZA05
Z47
5
30
38
0.4
100
42
55
93
1
400
V47ZA1P
P47Z1
V47ZA1
47Z1
7
30
38
1.8
250
42
52
93
2.5
800
V47ZA3P
P47Z3
V47ZA3
47Z3
10
30
38
4.5
500
42
52
93
5
2000
V47ZA7P
P47Z7
V47ZA7
47Z7
14
30
38
8.8
1000
42
52
93
10
4500
V47ZA20P
P47Z20
V47ZA20
47Z20
20
30
38
23
2000
42
52
93
20
11000
V56ZA05P
PZ56
V56ZA05
Z56
5
35
45
0.5
100
50
66
110
1
360
V56ZA2P
P56Z2
V56ZA2
56Z2
7
35
45
2.3
250
50
62
110
2.5
700
V56ZA3P
P56Z3
V56ZA3
56Z3
10
35
45
5.5
500
50
62
110
5
1800
V56ZA8P
P56Z8
V56ZA8
56Z8
14
35
45
10
1000
50
62
110
10
3900
V56ZA20P
P56Z20
V56ZA20
56Z20
20
35
45
30
2000
50
62
110
20
10000
V68ZA05P
PZ68
V68ZA05
Z68
5
40
56
0.6
100
61
80
135
1
300
V68ZA2P
P68Z2
V68ZA2
68Z2
7
40
56
3
250
61
75
135
2.5
600
V68ZA3P
P68Z3
V68ZA3
68Z3
10
40
56
6.5
500
61
75
135
5
1500
V68ZA10P
P68Z10
V68ZA10
68Z10
14
40
56
13
1000
61
75
135
10
3300
V68ZA20P
P68Z20
V68ZA20
68Z20
20
40
56
33
2000
61
75
135
20
10000
V82ZA05P
PZ82
V82ZA05
Z82
5
50
68
2
400
73
97
135
5
240
V82ZA2P
P82Z2
V82ZA2
82Z2
7
50
68
4
1200
73
91
135
10
500
V82ZA4P
P82Z4
V82ZA4
82Z4
10
50
68
8
2500
73
91
135
25
1100
V82ZA12P
P82Z12
V82ZA12
82Z12
14
50
68
15
4500
73
91
145
50
2500
V100ZA05P
PZ100
V100ZA05
Z100
5
60
81
2.5
400
90
117
165
5
180
V100ZA3P
P100Z
V100ZA3
100Z
7
60
81
5
1200
90
110
165
10
400
V100ZA4P
P100Z4
V100ZA4
100Z4
10
60
81
10
2500
90
110
165
25
900
V100ZA15P
P100Z15
V100ZA15
100Z15
14
60
81
20
4500
90
110
175
50
2000
V33ZA05P
Z33
SPECIFICATIONS (25 oC)
TRANSIENT
See Page 70 for NOTES
w w w. l i t t e l f u s e . c o m
69
2
VARISTOR
PRODUCTS
RoHS
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
Device Ratings and Specifications
RoHS Pb
LEAD-FREE
AND RoHS
COMPLIANT
MODELS
PART
NUMBER
BRANDING
(Note1) (Continued)
MAXIMUM RATING (85 oC)
CONTINUOUS
STANDARD
MODELS
PART
NUMBER
MODEL
SIZE
DISC
BRANDING DIA. (mm)
SPECIFICATIONS (25 oC)
TRANSIENT
VRMS
VDC
ENERGY 10
x 1000µs
PEAK
CURRENT
8 x 20µs
VM(AC)
VM(DC)
WTM
ITM
(V)
(V)
(J)
(A)
MAXIMUM
CLAMPING
VOLTAGE
8 x 20µs
VARISTOR VOLTAGE AT 1mA DC
TEST CURRENT
VNOM
MIN
VNOM
MAX
(V)
TYPICAL
CAPACITANCE
f = 1MHz
VC
IPK
C
(V)
(A)
(pF)
V120ZA05P
PZ120
V120ZA05
Z120
5
75
102
3
400
108
138
205
5
140
V120ZA1P
P120Z
V120ZA1
120Z
7
75
102
6
1200
108
132
205
10
300
V120ZA4P
P120Z4
V120ZA4
120Z4
10
75
102
12
2500
108
132
200
25
750
V120ZA6P
P120Z6
V120ZA6
120Z6
14
75
102
22
4500
108
132
210
50
1700
V120ZA20P
P120Z20
V120ZA20
120Z20
20
75
102
33
6500
108
132
210
100
1500
V150ZA05P
PZ150
V150ZA05
Z150
5
92
127
4
400
135
173
250
5
120
V150ZA1P
PZ051
V150ZA1
Z051
7
95
127
8
1200
135
165
250
10
250
V150ZA4P
P150Z4
V150ZA4
150Z4
10
95
127
15
2500
135
165
250
25
600
† V150ZA8P
P150Z8
V150ZA8
150Z8
14
95
127
20
4500
135
165
250
50
1400
V150ZA20P
P150Z20
V150ZA20
150Z20
20
95
127
45
6500
135
165
250
100
1000
V180ZA05P
PZ180
V180ZA05
Z180
5
110
153
5
400
162
207
295
5
100
V180ZA1P
P180Z
V180ZA1
180Z
7
115
153
10
1200
162
198
300
10
200
V180ZA5P
P180Z5
V180ZA5
180Z5
10
115
153
18
2500
162
198
300
25
500
V180ZA10P
P180Z10
V180ZA10
180Z10
14
115
153
35
4500
162
198
300
50
1100
V180ZA20P
P180Z20
V180ZA20
180Z20
20
115
153
52
6500
162
198
300
100
2400
V205ZA05P
PZ205
V205ZA05
Z205
5
130
170
5.5
400
184
226
340
5
100
V220ZA05P
PZ220
V220ZA05
Z220
5
140
180
6
400
198
253
360
5
90
V240ZA05P
PZ240
V240ZA05
Z240
5
150
200
7
400
216
264
395
5
80
V270ZA05P
PZ270
V270ZA05
Z270
5
175
225
7.5
400
243
311
455
5
70
V330ZA05P
PZ330
V330ZA05
Z330
5
210
275
9
400
297
380
540
5
60
V360ZA05P
PZ360
V360ZA05
Z360
5
230
300
9.5
400
324
396
595
5
55
†
†
†
†
†
†
†
†
†
V390ZA05P
PZ390
V390ZA05
Z390
5
250
330
10
400
351
449
650
5
50
V430ZA05P
PZ430
V430ZA05
Z430
5
275
369
11
400
387
495
710
5
45
V470ZA05P
PZ470
V470ZA05
Z470
5
300
385
12
400
420
517
775
5
35
V620ZA05P
PZ620
V620ZA05
Z620
5
385
505
13
400
558
682
1025
5
33
† V680ZA05P PZ680
V680ZA05
Z680
5
420
560
14
400
610
748
1120
5
32
V715ZA05P
PZ715
V715ZA05
Z715
5
440
585
15.5
400
643
787
1180
5
31
V750ZA05P
PZ750
V750ZA05
Z750
5
460
615
17
400
675
825
1240
5
30
NOTES:
1. Average power dissipation of transients not to exceed 0.2W, 0.25W, 0.4W, 0.6W or 1W for model sizes 5mm, 7mm, 10mm, 14mm and 20mm,
respectively.
2. Energy rating for impulse duration of 30ms minimum to one half of peak current (auto load dump).
3. 10mA DC test current.
4. Also rated to withstand 24V for 5 minutes.
5. Higher voltages available, contact Littelfuse.
† Recognized to UL1449, “Transient Voltage Surge Suppressors” File #E75961.
70
w w w. l i t t e l f u s e . c o m
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
ZA Varistor Series
Pb
Power Dissipation Ratings
100
90
PERCENT OF RATED VALUE
Should transients occur in rapid succession, the average power dissipation
required is simply the energy (watt-seconds) per pulse times the number
of pulses per second. The power so developed must be within the
specifications shown on the Device Ratings and Specifications table for
the specific device. Furthermore, the operating values need to be derated
at high temperatures as shown in Figure 1. Because varistors can only
dissipate a relatively small amount of average power they are, therefore,
not suitable for repetitive applications that involve substantial amounts of
average power dissipation.
80
70
60
50
40
30
2
20
0
-55
50
60
70
80
90
100
110
120
130
140
VARISTOR
PRODUCTS
10
150
AMBIENT TEMPERATURE ( oC)
PERCENT OF PEAK VALUE
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
O1 = Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T1 = Virtual Front time = 1.25 • t
T2 = Virtual Time to Half Value (Impulse Duration)
Example: For an 8/20µs Current Waveform:
8µs = T1 = Virtual Front Time
20µs = T2 = Virtual Time to Half Value
90
50
10
O1
T
TIME
T1
T2
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
Transient V-I Characteristics Curves
2000
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
8 TO 68VN(DC) RATING
TA = -55oC TO 85oC
MAXIMUM PEAK VOLTS (V)
MAXIMUM PEAK VOLTS (V)
600
500
400
300
200
100
90
80
70
60
50
40
V68ZA05(P)
V56ZA05(P)
V47ZA05(P)
V39ZA05(P)
V33ZA05(P)
V27ZA05(P)
30 V22ZA05(P)
V18ZA05(P)
20 V12ZA05(P)
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
82 TO 330VN(DC) RATING
TA = -55oC TO 85oC
V330ZA05(P)
V270ZA05(P)
V240ZA05(P)
V220ZA05(P)
V205ZA05(P)
V180ZA05(P)
V150ZA05(P)
V120ZA05(P)
1000
500
)
5(P
A0
Z
)
00
(P
V1
05
ZA
2
V8
200
V8ZA05(P)
10
10-3
10-2
10-1
100
101
PEAK AMPERES (A)
102
103
FIGURE 3. CLAMPING VOLTAGE FOR V8ZA05(P) - V68ZA05(P)
100
0.0001
0.001
0.01
0.1
1
10
100
1000
PEAK AMPERES (A)
FIGURE 4. CLAMPING VOLTAGE FOR V82ZA05(P) - V33ZA05(P)
w w w. l i t t e l f u s e . c o m
71
Varistor Products
Low to Medum Voltage, Radial Lead
Pb
RoHS
ZA Varistor Series
Transient V-I Characteristics Curves (Continued)
3000
1000
V750ZA05(P)
V715ZA05(P)
V680ZA05(P)
V620ZA05(P)
V470ZA05(P)
V430ZA05(P)
V390ZA05(P)
V360ZA05(P)
300
MAXIMUM PEAK VOLTS (V)
MAXIMUM PEAK VOLTS (V)
2000
500
400
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
360 TO 750VN(DC) RATING
TA = -55oC TO 85oC
500
0.0001
0.001
0.01
0.1
1
10
PEAK AMPERES (A)
100
MAXIMUM PEAK VOLTS (V)
2,000
1,000
900
800
700
600
500
400
500
400
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 7mm
82 TO 180VN(DC) RATING
TA = -55oC TO 85oC
300
V180ZA1(P)
V150ZA1(P)
V120ZA1(P)
V100ZA3(P)
V82ZA2(P)
300
200
100
10-3
10-2
10-1
100
101
102
PEAK AMPERES (A)
103
MAXIMUM PEAK VOLTS (V)
2,000
300
200
100
10-3
10-2
10-1
100
101
102
PEAK AMPERES (A)
103
104
FIGURE 9. CLAMPING VOLTAGE FOR V82ZA4(P) - V180ZA5(P)
72
100
90
80
70
60
50
40
V68ZA3(P)
V56ZA3(P)
V47ZA3(P)
V39ZA3(P)
V33ZA2(P)
V27ZA2(P)
30 V22ZA2(P)
V18ZA2(P)
20
V12ZA2(P)
300
V180ZA5(P)
V150ZA4(P)
V120ZA4(P)
V100ZA4(P)
V82ZA4(P)
103
200
600
500
400
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 10mm
82 TO 180VN(DC) RATING
TA = -55oC TO 85oC
1,000
900
800
700
600
500
400
102
10-1
100
101
PEAK AMPERES (A)
102
103
FIGURE 8. CLAMPING VOLTAGE FOR V8ZA2(P) - V68ZA3(P)
MAXIMUM PEAK VOLTS (V)
3,000
10-1
100
101
PEAK AMPERES (A)
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 10mm
8 TO 68VN(DC) RATING
TA = -55oC TO 85oC
V8ZA2(P)
10
10-3
10-2
104
FIGURE 7. CLAMPING VOLTAGE FOR V82ZA2(P) - V180ZA1(P)
4,000
100
90
80 V68ZA2(P)
70 V56ZA2(P)
60 V47ZA1(P)
50 V39ZA1(P)
40 V33ZA1(P)
V27ZA1(P)
30 V22ZA1(P)
V18ZA1(P)
20 V12ZA1(P)
FIGURE 6. CLAMPING VOLTAGE FOR V8ZA1(P) - V68ZA2(P)
MAXIMUM PEAK VOLTS (V)
3,000
200
V8ZA1(P)
10
-3
10
10-2
1000
FIGURE 5. CLAMPING VOLTAGE FOR V360ZA05(P) - V750ZA05(P)
4,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 7mm
8 TO 68VN(DC) RATING
TA = -55oC TO 85oC
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 14mm
18 TO 68VN(DC) RATING
TA = -55oC TO 85oC
200
100
90
80
70
60
50
40
V68ZA10(P)
V56ZA8(P)
V47ZA7(P)
V39ZA6(P)
V33ZA5(P)
V27ZA4(P)
30 V22ZA3(P)
V18ZA3(P)
20
10-3
10-2
10-1
100
101
PEAK AMPERES (A)
102
103
FIGURE 10. CLAMPING VOLTAGE FOR V18ZA3(P) - V68ZA10(P)
w w w. l i t t e l f u s e . c o m
Varistor Products
Low to Medum Voltage, Radial Lead
Pb
RoHS
ZA Varistor Series
Transient V-I Characteristics Curves (Continued)
1,000
900
800
700
600
500
400
V180ZA10(P)
V150ZA8(P)
V120ZA6(P)
V100ZA15(P)
V82ZA12(P)
300
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
18 TO 36VN(DC) RATING
TA = -55oC TO 85oC
200
MAXIMUM PEAK VOLTS (V)
2,000
MAXIMUM PEAK VOLTS (V)
300
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 14mm
82 TO 180VN(DC) RATING
TA = -55oC TO 85oC
3,000
200
V36ZA80(P)
V33ZA70(P)
V27ZA60(P)
V24ZA50(P)
V18ZA40P(P)
100
90
80
70
60
2
50
40
VARISTOR
PRODUCTS
4,000
30
100
10-3
10-2
10-1
100
101
102
PEAK AMPERES (A)
103
20
10-3
104
FIGURE 11. CLAMPING VOLTAGE FOR V82ZA12(P) - V180ZA10(P)
10-2
10-1
100
101
102
PEAK AMPERES (A)
103
104
FIGURE 12. CLAMPING VOLTAGE FOR V18ZA40(P) - V36ZA80(P)
MAXIMUM PEAK VOLTS (V)
1,000
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 20mm
39 TO 180VM(AC) RATING
500 TA = -55oC TO 85oC
V180ZA20(P)
V150ZA20(P)
V120ZA20(P)
300
200
V68ZA20(P)
V56ZA20(P)
V47ZA20(P)
V39ZA20(P)
100
50
30
10-3
10-2
10-1
100
101
PEAK AMPERES (A)
102
103
104
FIGURE 13. CLAMPING VOLTAGE FOR V39ZA20(P) - V180ZA20(P)
Pulse Rating Curves
50
100
MODEL SIZE 5mm
V8ZA05(P)
1
104 5
10 6
10
2
10
10
5
102
103
2
1
0.5
20
102
10
103
0.1
20
INDEFINITE
100
104 5
10 6
10
MODEL SIZE 5mm
V12ZA05(P) - V68ZA05(P)
2
1
0.5
0.2
10
50
SURGE CURRENT (A)
SURGE CURRENT (A)
20
1
2
INDEFINITE
0.2
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 14. SURGE CURRENT RATING CURVES FOR V8ZA05 (P)
0.1
20
100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 15. SURGE CURRENT RATING CURVES FOR
w w w. l i t t e l f u s e . c o m
73
Varistor Products
Low to Medum Voltage, Radial Lead
ZA Varistor Series
Pb
RoHS
Pulse Rating Curves (Continued)
200
500
1
100
10
50
102
104 5
10 6
10
10
5
INDEFINITE
0.2
20
100
1,000
IMPULSE DURATION ( µs)
200
2
10
100
5
2
INDEFINITE
20
MODEL SIZE 7mm
V18ZA1(P) - V68ZA2(P)
104 5
10 6
10
100
1,000
IMPULSE DURATION ( µs)
10,000
103
20
10
5
2
2
500
103
104
105
106
10
102
50
MODEL SIZE 7mm
V82ZA2(P) - V180ZA1(P)
1
1,000
SURGE CURRENT (A)
SURGE CURRENT (A)
103
10
2,000
1
INDEFINITE
200
102
100
50
20
10
INDEFINITE
5
1
0.5
2
20
100
1,000
IMPULSE DURATION ( µs)
1
20
10,000
FIGURE 18. SURGE CURRENT RATING CURVES FOR
V18ZA1(P) - V68ZA2(P)
100
1,000
1
200
2
100
10
104
105
MODEL SIZE 10mm
V8ZA2(P) - V12ZA2(P)
10,000
MODEL SIZE 10mm
V18ZA2(P) - V68ZA3(P)
1
500
2
106
200
SURGE CURRENT (A)
102
103
20
10
5
2
1,000
IMPULSE DURATION ( µs)
FIGURE 19. SURGE CURRENT RATING CURVES FOR
V82ZA2(P) - V180ZA1(P)
500
SURGE CURRENT (A)
102
20
FIGURE 17. SURGE CURRENT RATING CURVES FOR
V8ZA1(P) - V12ZA1(P)
500
INDEFINITE
104
105
106
100 102
3
50 10
20
10
INDEFINITE
5
1
0.5
2
1
20
100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 20. SURGE CURRENT RATING CURVES FOR
V8ZA2(P) - V127ZA2(P)
74
MODEL SIZE 7mm
V8ZA1(P) - V12ZA1(P)
0.2
10,000
FIGURE 16. SURGE CURRENT RATING CURVES FOR
V82ZA05(P) - V750ZA05(P)
0.2
104 5
10 6
10
0.5
0.5
50
10
1
1
0.2
2
50
20
2
1
100
SURGE CURRENT (A)
2
SURGE CURRENT (A)
200
MODEL SIZE 5mm
V82ZA05(P) - V750ZA05(P)
103
20
100
1,000
IMPULSE DURATION ( µs)
FIGURE 21. SURGE CURRENT RATING CURVES FOR
V18ZA2(P) - V68ZA3(P)
w w w. l i t t e l f u s e . c o m
10,000
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
Pulse Rating Curves (Continued)
5,000
MODEL SIZE 10mm
V82ZA4(P) - V180ZA5(P)
1
2,000
2
104 5
10 6
10
10
500
200
102
2
103
100
VARISTOR
PRODUCTS
SURGE CURRENT (A)
1,000
50
20
10
INDEFINITE
5
2
20
100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 22. SURGE CURRENT RATING CURVES FOR
V82ZA4(P) - V180ZA5(P)
1,000
2
500
1
MODEL SIZE 14mm
103
V18ZA3(P) - V68ZA10(P)
4
10
5
10
106
10
SURGE CURRENT (A)
200 102
100
50
20
10
5
INDEFINITE
2
1
20
100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 23. SURGE CURRENT RATING CURVES FOR
V18ZA3(P) - V68ZA10(P)
w w w. l i t t e l f u s e . c o m
75
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
Pulse Rating Curves (Continued)
1
2,000
2
1,000
10
102 3
10
104
105
106
500
200
100
50
20
10
2
1,000
1
MODEL SIZE 20mm
V18ZA40(P) - V68ZA20(P)
10
500
102
200
103
100
104
50
105
106
20
10
INDEFINITE
INDEFINITE
5
5
2
20
2,000
MODEL SIZE 14mm
V82ZA12(P) - V180ZA10(P)
SURGE CURRENT (A)
SURGE CURRENT (A)
5,000
100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 24. SURGE CURRENT RATING CURVES FOR
V82ZA12(P) - V180ZA10(P)
10,000
5,000
SURGE CURRENT (A)
100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 25. SURGE CURRENT RATING CURRENT FOR
V18ZA40(P) - V68ZA20(P)
MODEL SIZE 20mm
V120ZA20(P) - V180ZA20(P)
1
2
2,000
2
20
10
1,000
102
500
103
200
104
105
106
100
50
20
10
INDEFINITE
5
2
1
20
100
1,000
10,000
IMPULSE DURATION ( µs)
FIGURE 26. SURGE CURRENT RATING CURVES FOR V120ZA20(P) - V180ZA20(P)
NOTE: If pulse ratings are exceeded, a shift of VN(DC)(at specified current) of more then ±10% could result. This type of shift, which normally results in a decrease of VN(DC),
may result in the device not meeting the original published specifications, but does not prevent the device from continuing to function, and to provide ample protection.
76
w w w. l i t t e l f u s e . c o m
Varistor Products
Low to Medum Voltage, Radial Lead
ZA Varistor Series
Pb
Tape and Reel Specifications
5 and 7mm Devices
10, 14 and 20mm Devices
P
P2
P
P2
DP
DP
DH
DH
DP
DH
DH
C
SEATING
PLANE
H1
C
SEATING
PLANE
H1
E
DP
E
W0
W0
H0
H0
W2 W1
W2 W1
2
∆b
∆b
W
W
∆D0
∆D0
P1
P1
t
F
t
F
P1
P0
Crimped Leads "LT"
Crimped Leads "LT"
P
P2
DP
P
P2
E
E
DP
DP
DP
DH
DH
DH
DH
H1
H1
W0 W2 W1
H
W0 W2 W1
H
∆b
∆b
W
W
∆D0
∆D0
P1
P1
t
F
t
F
P0
P0
Straight Leads "LS"
Straight Leads "LS"
P
P2
P2
E
DP
E
DP
DP
DH
DP
DH
DH
DH
U
H1
U
H1
W0 W2 W1
Ho
W0 W2 W1
Ho
P
∆b
∆b
W
W
∆D0
∆D0
P1
P1
F
t
P0
P0
Under-crimped Leads "LU"
F
t
Under-crimped Leads "LU"
w w w. l i t t e l f u s e . c o m
77
VARISTOR
PRODUCTS
RoHS
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
MODEL SIZE
SYMBOL
PARAMETER
5mm
7mm
10mm
12.7 ± 1.0
12.7 ± 1.0
25.4 ± 1.0
14mm
25.4 ± 1.0
20mm
P
Pitch of Component
25.4 ± 1.0
P0
Feed Hole Pitch
12.7 ± 0.2
12.7 ± 0.2
12.7 ± 0.2
12.7 ± 0.2
12.7 ± 0.2
P1
Feed Hole Center to Pitch
3.85 ± 0.7
3.85 ± 0.7
8.85 ± 0.7
8.85 ± 0.7
8.85 ± 0.7
P2
Hole Center to Component Center
6.35 ± 1.0
6.35 ± 1.0
12.7 ± 0.7
12.7 ± 0.7
12.7 ± 0.7
F
Lead to Lead Distance
5.0 ± 1.0
5.0 ± 1.0
7.5 ± 1.0
7.5 ± 1.0
7.5 ± 1.0
h
Component Alignment
2.0 Max
2.0 Max
2.0 Max
2.0 Max
2.0 Max
18.0 + 1.0
18.0 - 0.5
18.0 + 1.0
18.0 - 0.5
18.0 + 1.0
18.0 - 0.5
18.0 + 1.0
18.0 - 0.5
18.0 + 1.0
18.0 - 0.5
W
Tape Width
W0
Hold Down Tape Width
12.0 ± 0.3
12.0 ± 0.3
12.0 ± 0.3
12.0 ± 0.3
12.0 ± 0.3
W1
Hole Position
9.0 + 0.75
9.0 - 0.50
9.0 + 0.75
9.0 - 0.50
9.0 + 0.75
9.0 - 0.50
9.0 + 0.75
9.0 - 0.50
9.0 + 0.75
9.0 - 0.50
0.5 Max
0.5 Max
0.5 Max
0.5 Max
0.5 Max
H
Height from Tape Center to
Component Base
18.0 + 2.0
18.0 - 0.0
18.0 + 2.0
18.0 - 0.0
18.0 + 2.0
18.0 - 0.0
18.0 + 2.0
18.0 - 0.0
18.0 + 2.0
18.0 - 0.0
W2
Hold Down Tape Position
H0
Seating Plane Height
16.0 ± 0.5
16.0 ± 0.5
16.0 ± 0.5
16.0 ± 0.5
16.0 ± 0.5
H1
Component Height
29.0 Max
32.0 Max
36.0 Max
40.0 Max
46.5 Max
D0
Feed Hole Diameter
4.0 ± 0.2
4.0 ± 0.2
4.0 ± 0.2
4.0 ± 0.2
4.0 ± 0.2
t
Total Tape Thickness
0.7 ± 0.2
0.7 ± 0.2
0.7 ± 0.2
0.7 ± 0.2
0.7 ± 0.2
U
Under-crimp Width
8.0 Max
8.0 Max
8.0 Max
8.0 Max
8.0 Max
p
Component Alignment
3o Max
3o Max
3o Max
3o Max
3o Max
NOTE: Dimensions are in mm.
Tape and Reel Data
• Conforms to ANSI and EIA specifications
• Can be supplied to IEC Publication 286-2
• Radial devices on tape are supplied with
crimped leads, straight leads, or undercrimped leads
• 5mm parts are available on tape and reel up
to 385 VAC only
NOTE: Leads are offset by Dim e1
78
w w w. l i t t e l f u s e . c o m
Varistor Products
Low to Medum Voltage, Radial Lead
Pb
ZA Varistor Series
Tape and Reel Ordering Information
SHIPPING QUANTITY
Crimped leads are standard on ZA types supplied in tape and reel and
are denoted by the model letter “T”. Model letter “S” denotes straight
leads and letter “U” denotes special under-crimped leads.
Example:
STANDARD
MODEL
CRIMPED
LEADS
STRAIGHT
LEADS
UNDERCRIMPED
LEADS
V18ZA3
V18ZT3
V18ZS3
V18ZU3
SIZE
RMS
(MAX)
VOLTAGE
QUANTITY PER REEL
“T” REEL
“S” REEL
“U” REEL
5mm
All
1000
1000
1000
7mm
All
1000
1000
1000
10mm
All
500
500
500
14mm
< 300V
500
500
500
14mm
≥ 300V
500
500
400
20mm
< 300V
500
500
500
20mm
≥ 300V
500
500
400
2
VARISTOR
PRODUCTS
RoHS
Mechanical Dimensions
VARISTOR MODEL SIZE
5mm
SYMBOL
VOLTAGE
MODEL
A
7mm
10mm
14mm
20mm
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
All
-
10
(0.394)
-
12
(0.472)
-
16
(0.630)
-
20
(0.787)
-
26.5
(1.043)
øD
All
-
7
(0.276)
-
9
(0.354)
-
12.5
(0.492)
-
17
(0.669)
-
23
(0.906)
e
All
4
(0.157)
6
(0.236)
4
(0.157)
6
(0.236)
6.5
(0.256)
8.5
(0.335)
6.5
(0.256)
8.5
(0.335)
6.5
8.5
(0.256) (0.335)
(Note 6) (Note 6)
e1
V8ZAV56ZA
1
(0.039)
3
(0.118)
1
(0.039)
3
(0.118)
1
(0.039)
3
(0.118)
1
(0.039)
3
(0.118)
1
(0.039)
3
(0.118)
V68ZAV100ZA
1.5
(0.059)
3.5
(0.138)
1.5
(0.059)
3.5
(0.138)
1.5
(0.059)
3.5
(0.138)
1.5
(0.059)
3.5
(0.138)
1.5
(0.059)
3.5
(0.138)
V120ZAV180ZA
1
(0.039)
3
(0.118)
1
(0.039)
3
(0.118)
1
(0.039)
3
(0.118)
1
(0.038)
3
(0.118)
1
(0.038)
3
(0.118)
V205ZAV750ZA
1.5
(0.059)
3.5
(0.138)
-
-
-
-
-
-
-
-
V8ZAV56ZA
-
5
(0.197)
-
5
(0.197)
-
5
(0.197)
-
5
(0.197)
-
5
(0.197)
V68ZAV100ZA
-
5.6
(0.220)
-
5.6
(0.220)
-
5.6
(0.220)
-
5.6
(0.220)
-
5.6
(0.220)
V120ZAV180ZA
-
5
(0.197)
-
5
(0.197)
-
5
(0.197)
-
5
(0.197)
-
5
(0.197)
V205ZAV750ZA
-
5.6
(0.220)
-
-
-
-
-
-
-
-
All
0.585
(0.023)
0.685
(0.027)
0.585
(0.023)
0.685
(0.027)
0.76
(0.030)
0.86
(0.034)
0.76
(0.030)
0.86
(0.034)
0.76
(0.030)
0.86
(0.034)
E
øb
NOTES: Dimensions in millimeters, inches in parentheses.
6. 10mm ALSO AVAILABLE; See Additional Lead Style Options.
7. V24ZA50(P) and V24ZC50(P) only supplied with lead spacing of 6.35mm ± 0.5mm (0.25 ± 0.0196)
Dimension e = 5.85 min. Does not apply to T&R parts.
w w w. l i t t e l f u s e . c o m
79
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
Additional Lead Style Options
Radial lead types can be supplied with combination preformed crimp and
trimmed leads. This option is supplied to the dimensions shown.
*SEATING PLANE INTERPRETATION PER IEC-717
CRIMPED AND TRIMMED LEAD
VARISTOR MODEL SIZE
5mm
SYMBOL
MIN
NOTE:
10mm
14mm
20mm
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
-
13.0
(0.512)
-
15
(0.591)
-
19.5
(0.768)
-
22.5
(0.886)
-
29.0
(1.142)
2.41
(0.095)
4.69
(0.185)
2.41
(0.095)
4.69
(0.185)
2.41
(0.095)
4.69
(0.185)
2.41
(0.095)
4.69
(0.185)
2.41
(0.095)
4.69
(0.185)
A
-
LTRIM
7mm
Dimensions in millimeters, inches in parentheses.
ZA series varistors for Hi-Temperature operating conditions:
• To order this crimped and trimmed lead style, standard radial type
model numbers are changed by replacing the model letter “ZA” with
“ZC”. This option is supplied in bulk only.
Example:
STANDARD CATALOG
MODEL
ORDER AS:
V18ZA3
V18ZC3
For crimped leads without trimming and any varitions to the above,
contact Littelfuse.
• For 10/±1mm lead spacing on 20mm diameter models only; append standard model numbers by adding “X10”.
Example:
STANDARD CATALOG
MODEL
ORDER AS:
V18ZA40
V18ZA40X10
• Phenolic Coated ZA Series devices are available with improved maximum operating maximum temperature 125°C.
• These devices also have improved temperature cycling performance
capability.
• Ratings and Specifications are as per standard ZA Series except HiPot encapsulation Isolation Voltage Capability = 500V.
• To order: add X1347 to part number (e.g. V22ZA3X1347)
• These devices are not UL, CSA, VDE or CECC certified.
• Contact factory for further details.
Ordering Information
ZA series Varistors are shipped standard in bulk pack with straight leads
and lead spacing outlined in the package dimensions on page 4-13.
Contact your Littelfuse sales representative to discuss the non-standard
options outlined below.
For Lead-free and RoHS compliant parts add the letter ‘P’ after the base
part number and before any option as shown in the ordering example
below.
ex: V8ZA40PX10
V150ZA20PX1347
Base Part #
Other Options
V XXX ZA XX P
VARISTOR
VARISTOR NOMINAL
VOLTAGE (V NOM)
(One, Two or Three Digits)
80
w w w. l i t t e l f u s e . c o m
P: LEAD-FREE AND RoHS
COMPLIANT OPTION
RELATIVE ENERGY INDICATOR
(One or Two Digits)
SERIES DESIGNATOR/
LEAD STYLE DESIGNATOR
ZC = Crimped and Clipped
ZS = Straight
ZT = Crimped
ZU = Under Crimped