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V56ZA8

Part # V56ZA8
Description VARISTOR 50V 1KA DISC 14MM
Category MICROCIRCUITS
Availability In Stock
Qty 95
Qty Price
1 - 19 $0.42859
20 - 39 $0.34092
40 - 59 $0.32144
60 - 79 $0.29871
80 + $0.26625
Manufacturer Available Qty
Littelfuse
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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.
Should transients occur in rapid succession, the average
power dissipation is 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
Current Energy and Power Dissipation Ratings
Peak Pulse Current Test Waveform
100
90
50
10
O
1
T
T
1
T
2
TIME
PERCENT OF PEAK VALUE
0
1
7JSUVBM0SJHJOPG8BWF
55JNFGSPNUPPG1FBL
T
1
= Rise Time = 1.25 x T
T
2
= Decay Time
Example - For an 8/20 μT$VSSFOU8BWFGPSN
8μs = T
1
= Rise Time
20μs = T
2
= Decay Time
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE (
o
C)
PERCENT OF RATED VALUE
Figure 1A - Power Derating for Epoxy Coated
Figure 2
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE (
o
C)
PERCENT OF RATED VALUE
device. The operating values of a MOV need to be derated
at high temperatures as shown above. Because varistors
only dissipate a relatively small amount of average power
they are not suitable for repetitive applications that involve
substantial amounts of average power dissipation.
Figure 1B - Power Derating for Phenolic Coated
Phenolic Coating Option -- ZA Series Varistors for Hi-Temperature Operating Conditions:
t 1IFOPMJDDPBUFE;"4FSJFTEFWJDFTBSFBWBJMBCMFXJUIJNQSPWFENBYJNVNPQFSBUJOHUFNQFSBU
VSFPG¡$
t 5IFTFEFWJDFTBMTPIBWFJNQSPWFEUFNQFSBUVSFDZDMJOHQFSGPSNBODFDBQBCJMJUZ
t 3BUJOHTBOETQFDJmDBUJPOTBSFBTQFSTUBOEBSE;"4FSJFTFYDFQU)Jo1PU
&ODBQTVMBUJPO*TPMBUJPO7PMUBHF$BQBCJMJUZ7
t 5PPSEFSBEEh9hUPQBSUOVNCFSFH7;"19
t 5IFTFEFWJDFTBSFOPU6-$4"7%&PS$&$$DFSUJmFE
t $POUBDUGBDUPSZGPSGVSUIFSEFUBJMT
t 1SPEVDUNBSLJOH
LF 9
P22P3
YYWW
Phenolic Coated
Option
Identifier
Lead-Free,
Halogen-Free
& RoHS Compliant
Indicator
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
V360ZA05(P) - V750ZA05(P)
3000
2000
1000
500
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
0.01 0.1 1 10 100 10000.0010.0001
V750ZA05(P)
V715ZA05(P)
V680ZA05(P)
V620ZA05(P)
V470ZA05(P)
V430ZA05(P)
V390ZA05(P)
V360ZA05(P)
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
360 TO 750V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
600
500
400
300
200
100
90
80
70
60
50
40
30
20
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
8 TO 68V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
10
V68ZA05(P)
V56ZA05(P)
V47ZA05(P)
V39ZA05(P)
V33ZA05(P)
V27ZA05(P)
V22ZA05(P)
V18ZA05(P)
V12ZA05(P)
V8ZA05(P)
10
-3
Maximum Clamping Voltage for 5mm Parts
V8ZA05(P) - V68ZA05(P)
V82ZA05(P) - V33ZA05(P)
2000
1000
500
200
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
0.01 0.1 1 10 100 1000
100
0.0010.0001
V100ZA05(P)
V82ZA05(P)
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
82 T
O 330V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
V330ZA05(P)
V270ZA05(P)
V240ZA05(P)
V220ZA05(P)
V205ZA05(P)
V180ZA05(P)
V150ZA05(P)
V120ZA05(P)
Figure 3
Figure 4
Figure 5
Maximum Clamping Voltage for 7mm Parts
V8ZA1(P) - V68ZA2(P)
V82ZA2(P) - V180ZA1(P)
500
400
300
200
100
90
80
70
60
50
40
30
20
10
MAXIMUM PEAK VOLTS (V)
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
MAXIMUM CLAMPING VOLTAGE
8 TO 68V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
PEAK AMPERES (A)
V68ZA2(P)
V56ZA2(P)
V47ZA1(P)
V39ZA1(P)
V33ZA1(P)
V27ZA1(P)
V22ZA1(P)
V12ZA1(P)
V18ZA1(P)
V8ZA1(P)
MODEL SIZE 7mm
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 7mm
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
V180ZA1(P)
V150ZA1(P)
V120ZA1(P)
V100ZA3(P)
V82ZA2(P)
Figure 6 Figure 7
Varistor Products
©2012 Littelfuse, Inc.
Revision: February 9, 2012
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.
Maximum Clamping Voltage for 10mm Parts
V8ZA2(P) - V68ZA3(P)
Maximum Clamping Voltage for 14mm Parts
V82ZA4(P) - V180ZA5(P)
V18ZA3(P) - V68ZA10(P)
500
400
300
200
100
90
80
70
60
50
40
30
20
10
MAXIMUM PEAK VOLTS (V)
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
PEAK AMPERES (A)
V68ZA3(P)
V56ZA3(P)
V47ZA3(P)
V39ZA3(P)
V33ZA2(P)
V27ZA2(P)
V22ZA2(P)
V18ZA2(P)
V8ZA2(P)
V12ZA2(P)
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 10mm
8 TO 68V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
MAXIMUM PEAK VOLTS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 10mm
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
V180ZA5(P)
V150ZA4(P)
V120ZA4(P)
V100ZA4(P)
V82ZA4(P)
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
PEAK AMPERES (A)
MAXIMUM PEAK VOLTS (V)
V68ZA10(P)
V56ZA8(P)
V47ZA7(P)
V39ZA6(P)
V33ZA5(P)
V27ZA4(P)
V22ZA3(P)
V18ZA3(P)
MAXIMUM CLAMPING VOLTAGE
18 TO 68V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
MODEL SIZE 14mm
V82ZA12(P) - V180ZA10(P)
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)
MAXIMUM PEAK VOLTS (V)
Figure 8 Figure 9
Figure 10 Figure 11
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