Metal-Oxide Varistors (MOVs)
Radial Lead Varistors > ZA Series
RoHS
ZA Varistor Series
Description
The ZA Series of transient voltage surge suppressors
are radial leaded varistors (MOVs) designed for use in
the protection of low and medium-voltage circuits and
systems. Typical applications include motor control,
telecom, 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 V voltage range of 5.5V to 615V.
DC
See ZA Series Device Ratings and Specifications
Table for part number and brand information.
Agency Approvals
Agency File
Agency Agency Approval
Number
Features
Leadfree, Halogen- 5 model sizes
UL1449* E320116
Free and RoHS available: 5, 7, 10,
compliant 14, and 20mm
CECC 42201-006
IEC 61051-1
Wide operating voltage Radial lead package for
116895
IEC 61051-2
hard-wired or printed
range V
M(AC)RMS
IEC 60950-1 (Annex Q)**
circuit board designs
4V to 460V
CECC 42201-006
Available in tape and
DC voltage ratings
IEC 61051-1
E1273/F
IEC 61051-2 reel or bulk pack
5.5V to 615V
IEC 60950-1 (Annex Q)**
No derating up to Standard lead
Notes:
85C ambient form options
* - Except parts V8ZAxxP and V12ZAxxP.
** - For 14mm (V120 to V180) and 20mm (V120 to V180).
Additional Information
Datasheet Resources Samples
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous ZA Series Units
Steady State Applied Voltage:
AC Voltage Range (V ) 4 to 460 V
M(AC)RMS
DC Voltage Range (V ) 5.5 to 615 V
M(DC)
Transients:
Peak Pulse Current (I )
TM
For 8/20s Current Wave (See Figure 2) 50 to 6500 A
Single Pulse Energy Range (Note 1)
For 10/1000s Current Wave (W ) 0.1 to 52 J
TM
Operating Ambient Temperature Range (T ) -55 to +85 C
A
Storage Temperature Range (T ) -55 to +125 C
STG
V
Temperature Coefficient (a ) of Clamping Voltage (V ) at Specified Test Current <0.01 %/C
C
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
2500 V
(Dielectric must withstand indicated DC voltage for one minute per MILSTD202, Method 301)
COATING Insulation Resistance 1000 M
CAUTION: Stresses above those listed inAbsolute Maximum Rating 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.
2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/12/18Metal-Oxide Varistors (MOVs)
Radial Lead Varistors > ZA Series
ZA Series Ratings & Specifications
Maximum Rating (85C) Specifications (25C)
Continuous Transient Maximum Typical
Varistor Voltage at
Peak Clamping Capaci-
1mA
Energy 10
V V Current Voltage tance
Part Model Size
RMS DC
DC Test Current
x 1000s
Branding
8 x 20s 8 x 20s f = 1MHz
Number Disc Dia. (mm)
V V
NOM NOM
V V W I V I C
M(AC) M(DC) TM TM C PK
Min Max
(V) (V) (J) (A) (V) (V) (V) (A) (pF)
V8ZA05P PZ08 5 4 5.5 0.1 50 6 11 30 1 2000
V8ZA1P P08Z1 7 4 5.5 0.4 100 6 11 22 2.5 4190
V8ZA2P P08Z2 10 4 5.5 0.8 250 6 11 20 5 7000
V12ZA05P PZ12 5 6 8 0.14 50 9 16 37 1 1700
V12ZA1P P12Z1 7 6 8 0.6 100 9 16 34 2.5 3350
V12ZA2P P12Z2 10 6 8 1.2 250 9 16 30 5 6100
V18ZA05P PZ18 5 10 14 0.17 100 16.2 19.8 36 1 1400
V18ZA1P P18Z1 7 10 14 0.8 250 16.2 19.8 36 2.5 2700
V18ZA2P P18Z2 10 10 14 1.5 500 16.2 19.8 36 5 5300
V18ZA3P P18Z3 14 10 14 3.5 1000 16.2 19.8 36 10 18870
V18ZA20P P18Z20 20 10 14 10 2000 16.2 19.8 37 20 22000
16.2
80
V18ZA40P P18Z40 20 10 14 2000 19.8 37 20 22000
(Note 3)
(Note2)
V22ZA05P PZ22 5 14 18 0.2 100 19.8 24.2 43 1 1220
V22ZA1P P22Z1 7 14 18 0.9 250 19.8 24.2 43 2.5 2375
V22ZA2P P22Z2 10 14 18 2 500 19.8 24.2 43 5 4500
V22ZA3P P22Z3 14 14 18 4 1000 19.8 24.2 43 10 14730
V24ZA20P P24Z20 20 14 18 12 2000 19.8 24.2 43 20 18000
18 100 20.7
V24ZA50P P24Z50 20 14 2000 25.3 43 20 18000
(Note 4) (Note 2) (Note 3)
V27ZA05P PZ27 5 17 22 0.25 100 24.3 29.7 53 1 920
V27ZA1P P27Z1 7 17 22 1 250 24.3 29.7 53 2.5 1875
V27ZA2P P27Z2 10 17 22 2.5 500 24.3 29.7 53 5 3850
V27ZA4P P27Z4 14 17 22 5 1000 24.3 29.7 53 10 11480
V27ZA20P P27Z20 20 17 22 14 2000 24.3 29.7 53 20 13000
24.3
V27ZA60P P27Z60 20 17 22 100 (Note 2) 2000 29.7 50 20 13000
(Note 3)
V33ZA05P PZ33 5 20 26 0.3 100 29.7 36.3 65 1 790
V33ZA1P P33Z1 7 20 26 1.2 250 29.7 36.3 65 2.5 1620
V33ZA2P P33Z2 10 20 26 3 500 29.7 36.3 65 5 3495
V33ZA5P P33Z5 14 20 26 6 1000 29.7 36.3 65 10 9290
V33ZA20P P33Z20 20 20 26 18 2000 29.7 36.3 65 20 13000
100 29.7
V33ZA70P P33Z70 20 21 27 2000 36.3 58 20 13000
(Note 2) (Note 3)
32.4
V36ZA20P P36Z20 20 23 28 20 2000 39.6 70 20 12000
100 32.4
V36ZA80P P36Z80 20 23 28 2000 39.6 63 20 12000
(Note 2) (Note 3)
V39ZA05P PZ39 5 25 31 0.3 100 35.1 42.9 79 1 675
V39ZA1P P39Z1 7 25 31 1.2 250 35.1 42.9 79 2.5 1350
V39ZA3P P39Z3 10 25 31 3 500 35.1 42.9 76 5 3100
V39ZA6P P39Z6 14 25 31 7.2 1000 35.1 42.9 76 10 7000
V39ZA20P P39Z20 20 25 31 20 2000 35.1 42.9 76 20 12000
V47ZA05P PZ47 5 30 38 0.4 100 42.3 51.7 93 1 585
V47ZA1P P47Z1 7 30 38 1.8 250 42.3 51.7 93 2.5 1245
V47ZA3P P47Z3 10 30 38 4.5 500 42.3 51.7 93 5 2590
V47ZA7P P47Z7 14 30 38 8.8 1000 42.3 51.7 93 10 6270
38 23
V47ZA20P P47Z20 20 30 2000 42.3 51.7 93 20 11000
(Note 6) (Note 7)
2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/12/18