4-34
File Number
2184.6
1-800-999-9445 or 1-847-824-1188
|
Copyright
©
Littelfuse, Inc. 1999
ZA Series
Radial Lead Metal-Oxide Varistors for Low
to Medium Voltage Operation
The ZA Series of transient voltage surge suppressors are
radial-lead varistors (MOVs) designed for use in the
protection of low and medium-voltage 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 V
DC
voltage
range of 5.5V to 615V.
See ZA Series Device Ratings and Specifications table for
part number and brand information.
Features
• Recognized as “Protectors for Data Communications and
Fire Alarm Circuits”, UL File #E135010 to Std. 497B
• VDE Certified. License Number 116895E
• Wide Operating Voltage Range V
M(AC)RMS
. . . . 4V to 460V
• DC Voltage Ratings . . . . . . . . . . . . . . . . . . . 5.5V to 615V
• No Derating Up to 85
o
C Ambient
• 5 Model Sizes Available . . . . . . . . 5, 7, 10, 14, and 20mm
• Radial-Lead Package for Hard-Wired or Printed Circuit
Board Designs
• Available in Tape and Reel or Bulk Pack
• Standard Lead Form Options
Packaging
14MM, 20MM
5MM, 7MM, 10MM
Data Sheet
July 1999
[ /Title
(ZA
Series)
/Sub-
ject
(Radial
Lead
Metal-
Oxide
Varis-
tors for
Low to
Mediu
m Volt-
age
Opera-
tion)
/Autho
r ()
/Key-
words
(Littel-
fuse,
Inc.,
Sup-
pres-
sion
Prod-
ucts,
TVS,
Tran-
sient
Sup-
pres-
sion,
Protec-
tion,
Auto-
motive,
4-35
Absolute Maximum Ratings
For ratings of individual members of a series, see Device Ratings and Specifications chart.
ZA SERIES
UNITS
Continuous:
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Voltage Range (V
M(DC)
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 to 460
5.5 to 615
V
V
Transient:
Peak Pulse Current (I
TM
)
For 8/20
µ
s Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Single Pulse Energy Range (Note 1)
For 10/1000
µ
s Current Wave (W
TM
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50 to 6500
0.1 to 52
A
J
Operating Ambient Temperature Range (T
A
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-55 to 85
o
C
Storage Temperature Range (T
STG
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-55 to 125
o
C
Temperature Coefficient (
α
V) of Clamping Voltage (V
C
) at Specified Test Current . . . . . . . . . . . . . . . . .
<0.01
%/
o
C
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2500
V
(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301) . . . .
Insulation Resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1000
M
Ω
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)
VDE Certified. License Number 116895E
ZA Series Varistors are listed under UL File No. E135010 as a UL recognized component.
PART
NUMBER
MODEL
SIZE
DISC
DIA. (mm)
BRAND
MAXIMUM RATING (85
o
C)
SPECIFICATIONS (25
o
C)
CONTINUOUS
TRANSIENT
VARISTOR VOLT-
AGE AT 1mA DC
TEST CURRENT
MAXIMUM
CLAMPING
VOLTAGE
8 x 20
µ
s
TYPICAL
CAPACI-
TANCE
f = 1MHz
V
RMS
V
DC
ENERGY 10
x 1000
µ
s
PEAK
CURRENT
8 x 20
µ
s
V
M(AC)
V
M(DC)
W
TM
I
TM
V
NOM
MIN
V
NOM
MAX
V
C
I
PK
C
(V)
(V)
(J)
(A)
(V)
(V)
(A)
(pF)
V8ZA05
5
Z08
4
5.5
0.1
50
6
11
30
1
1400
V8ZA1
7
08Z1
4
5.5
0.4
100
6
11
22
2.5
3000
V8ZA2
10
08Z2
4
5.5
0.8
250
6
11
20
5
7500
V12ZA05
5
Z12
6
8
0.14
50
9
16
37
1
1200
V12ZA1
7
12Z1
6
8
0.6
100
9
16
34
2.5
2500
V12ZA2
10
12Z2
6
8
1.2
250
9
16
30
5
6000
V18ZA05
5
Z18
10
14
0.17
100
14.4
21.6
36
1
1000
V18ZA1
7
18Z1
10
14
0.8
250
14.4
21.6
36
2.5
2000
V18ZA2
10
18Z2
10
14
1.5
500
14.4
21.6
36
5
5000
V18ZA3
14
18Z3
10
14
3.5
1000
14.4
21.6
36
10
11000
V18ZA40
20
18Z40
10
14
80 (Note 2)
2000
14.4
(Note 3)
21.6
37
20
22000
V22ZA05
5
Z22
14
18
0.2
100
18.7
26
43
1
800
V22ZA1
7
22Z1
14
18
0.9
250
18.7
26
43
2.5
1600
V22ZA2
10
22Z2
14
18
2
500
18.7
26
43
5
4000
V22ZA3
14
22Z3
14
18
4
1000
18.7
26
43
10
9000
V24ZA50
20
24Z50
14
18
(Note 4)
100 (Note 2)
2000
19.2
(Note 3)
26
43
20
18000
V27ZA05
5
Z27
17
22
0.25
100
23
31.1
53
1
600
V27ZA1
7
27Z1
17
22
1 250
23
31.1
53
2.5
1300
V27ZA2
10
27Z2
17
22
2.5
500
23
31.1
53
5
3000
V27ZA4
14
27Z4
17
22
5
1000
23
31.1
53
10
7000
V27ZA60
20
27Z60
17
22
120 (Note 2)
2000
23
(Note 3)
31.1
50
20
13000
ZA Series
