68

www .littelfuse .com

Varistor Products

ZA Varistor Series

Low to Medum Voltage, Radial Lead

Continuous:

Steady State Applied Voltage:

AC Voltage Range (VM(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 to 460

V

DC Voltage Range (VM(DC)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 to 615

V

Transient:

Peak Pulse Current (ITM)

For 8/20µs Current Wave (See Figure 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 to 6500

A

Single Pulse Energy Range (Note 1)

For 10/1000µs Current Wave (WTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 to 52

J

Operating Ambient Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to85

o

C

Storage Temperature Range (TSTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to125

o

C

Temperature Coefficient ( V) of Clamping Voltage (VC) at Specified Test Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01

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

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.

ZA SERIES

UNITS

PART

NUMBER

MODEL

SIZE

DISC

DIA. (mm)

BRANDING

CONTINUOUS

TRANSIENT

VARISTOR VOLT-

AGE AT 1mA DC

TEST CURRENT

MAXIMUM

CLAMPING

VOLTAGE

8 x 20

µs

TYPICAL

CAPACI-

TANCE

f = 1MHz

ENERGY 10

x 1000

µs

PEAK

CURRENT

8 x 20

µs

MIN

MAX

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

PART

NUMBER

BRANDING

V8ZA05P

PZ08

V8ZA1P

P08Z1

V8ZA2P

P08Z2

V12ZA05P

PZ12

V12ZA1P

P12Z1

V12ZA2P

P12Z2

V18ZA05P

PZ18

V18ZA1P

P18Z1

V18ZA2P

P18Z2

V18ZA3P

P18Z3

V18ZA40P

P18Z40

V22ZA05P

PZ22

V22ZA1P

P22Z1

V22ZA2P

P22Z2

V22ZA3P

P22Z3

V24ZA50P

P24Z50

V27ZA05P

PZ27

V27ZA1P

P27Z1

V27ZA2P

P27Z2

V27ZA4P

P27Z4

V27ZA60P

P27Z60

LEAD-FREE

AND RoHS

COMPLIANT

MODELS

STANDARD

MODELS

Pb

RoHS

See Page 70 for NOTES

Pb

RoHS