V27ZA1P Littelfuse Inc, V27ZA1P Datasheet - Page 4

• Manufacturer Part Number: V27ZA1P
• Description: VARISTOR 27V 1J 7MM RADIAL ZA
• Manufacturer: Littelfuse Inc
• Series: ZAr
• Type: MOVr

Specifications of V27ZA1P

• Varistor Voltage: 31.1V
• Current-surge: 250A
• Number Of Circuits: 1
• Maximum Ac Volts: 17VAC
• Maximum Dc Volts: 22VDC
• Energy: 1.0J
• Package / Case: Disc 7mm
• Product: MOV
• Voltage Rating Dc: 22 V
• Voltage Rating Ac: 17 V
• Clamping Voltage: 57 V
• Peak Surge Current: 250 A
• Surge Energy Rating: 1 J
• Capacitance: 1300 pF
• Operating Temperature Range: - 55 C to + 85 C
• Mounting: Through Hole
• Current Rating: 250 A
• Termination Style: Radial
• Brand/series: ZA Series
• Current, Peak: 250 A
• Electric Strength: 1.0 Joules
• Energy Rating: 1 Joules
• Package: Leads
• Technology: Metal Oxide
• Temperature, Operating, Maximum: 85 °C
• Temperature, Operating, Minimum: -55 °C
• Terminal Type: Radial Leaded
• Voltage, Ac: 17 VAC
• Voltage, Clamping: 53 V
• Voltage, Dc: 22 VDC
• Voltage, Operating: 22.00 VDC
• Voltage, Varistor: 31.1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: F3052; V27ZA1P

ZA Varistor Series
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.
Maximum Clamping Voltage for 5mm Parts
600
500
400
300
200
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
10
-55
V68ZA05(P)
V56ZA05(P)
V47ZA05(P)
V39ZA05(P)
V33ZA05(P)
V27ZA05(P)
V22ZA05(P)
V18ZA05(P)
V12ZA05(P)
V8ZA05(P)
-3
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
8 TO 68V
T
50
A
= -55
10
60
o
-2
N(DC)
C TO 85
AMBIENT TEMPERATURE (
70
RATING
10
o
80
PEAK AMPERES (A)
C
-1
90
10
100
0
110
10
o
120
1
C)
Radial Lead Varistors > ZA series
130
10
2
140
150
10
3
Varistor Products
Revised: April 7, 2008
60
Peak Pulse Current Test Waveform
Maximum Clamping Voltage for 5mm Parts
2000
1000
500
200
100
0.0001
Example: For an 8/20μs Current Waveform:
20μs = T
8μs = T
O
T
T
T = Time From 10% to 90% of Peak
1
1
2
O
100
1
= Virtual Origin of Wave
= Virtual Front
= Virtual Time to Half Value (Impulse Duration)
90
50
10
0.001
1
2
= Virtual Front Time
= Virtual Time to Half Value
V330ZA05(P)
V270ZA05(P)
V240ZA05(P)
V220ZA05(P)
V205ZA05(P)
V180ZA05(P)
V150ZA05(P)
V120ZA05(P)
0.01
T
T
1
PEAK AMPERES (A)
T
0.1
2
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za.html
MAX CLAMPING VOLTAGE
MODEL SIZE 5mm
82 TO 330V
T
1
A
t
= -55
o
10
for the most current information.
TIME
C TO 85
N(DC)
100
o
RATING
C
©2008 Littelfuse, Inc.
1000