V100ZA05
| Model | V100ZA05 |
| Description | Varistor Products - Low to Medum Voltage, Radial Lead |
| PDF file | Total 14 pages (File size: 1M) |
| Chip Manufacturer | LITTELFUSE |
Varistor Products
Low to Medum Voltage, Radial Lead
RoHS
Pb
ZA Varistor Series
100
90
PERCENT OF RATED VALUE
Power Dissipation Ratings
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
20
10
50
60
70
80
90
100
110
120
130
140
150
2
VARISTOR
PRODUCTS
71
0
-55
AMBIENT TEMPERATURE (
o
C)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
PERCENT OF PEAK VALUE
100
90
50
O
1
= Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T
1
= Virtual Front time = 1.25 • t
T
2
= Virtual Time to Half Value (Impulse Duration)
Example: For an 8/20µs Current Waveform:
8µs = T
1
= Virtual Front Time
20µs = T
2
= Virtual Time to Half Value
10
O
1
T
T
1
T
2
TIME
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
Transient V-I Characteristics Curves
600
500
400
300
MAXIMUM PEAK VOLTS (V)
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
8 TO 68V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
2000
V330ZA05(P)
V270ZA05(P)
V240ZA05(P)
V220ZA05(P)
V205ZA05(P)
V180ZA05(P)
V150ZA05(P)
V120ZA05(P)
200
MAXIMUM PEAK VOLTS (V)
1000
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
82 TO 330V
N(DC)
RATING
T
A
= -55
o
C TO 85
o
C
100
90
80
70
60
50
40
500
V68ZA05(P)
V56ZA05(P)
V47ZA05(P)
V39ZA05(P)
V33ZA05(P)
V27ZA05(P)
30 V22ZA05(P)
V18ZA05(P)
20 V12ZA05(P)
V8ZA05(P)
200
)
(P
05
ZA
)
00
(P
V1
05
A
2Z
V8
10
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
100
0.0001
0.001
0.01
0.1
1
10
100
1000
PEAK AMPERES (A)
PEAK AMPERES (A)
FIGURE 3. CLAMPING VOLTAGE FOR V8ZA05(P) - V68ZA05(P)
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
