V300LA4 Littelfuse Inc, V300LA4 Datasheet - Page 4
![VARISTOR 300V 25J 7MM RADIAL LA](/photos/1/43/14311/la-za_series-7mm_sml.jpg)
V300LA4
Manufacturer Part Number
V300LA4
Description
VARISTOR 300V 25J 7MM RADIAL LA
Manufacturer
Littelfuse Inc
Series
LAr
Datasheet
1.V250LA2P.pdf
(13 pages)
Specifications of V300LA4
Energy
25J
Varistor Voltage
517V
Current-surge
1.2kA
Number Of Circuits
1
Maximum Ac Volts
300VAC
Maximum Dc Volts
405VDC
Package / Case
Disc 7mm
Technology
Metal Oxide
Capacitance Value
70pF
Clamping Current
10A
Clamping Voltage
775V
Lead Style
Radial
Ac Voltage Rating (max)
300VAC
Dc Voltage Rating (max)
405VDC
Operating Temp Range
-55C to 85C
Mounting
Through Hole
Surge Current (max)
1200A
Lead Spacing
6mm
Product Depth (mm)
5.6mm
Product Height (mm)
12mm
Product Diameter (mm)
9mm
Product
MOV
Voltage Rating Dc
405 V
Voltage Rating Ac
300 V
Peak Surge Current
1.2 KA
Surge Energy Rating
25 J
Capacitance
70 pF
Operating Temperature Range
- 55 C to + 85 C
Dimensions
7 mm Dia.
Termination Style
Radial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
V300LA40AP
Manufacturer:
LITTELFUSE
Quantity:
32 000
Company:
Part Number:
V300LA4P
Manufacturer:
LITTELFUSE
Quantity:
32 000
LA Varistor Series
Power Dissipation Ratings
Should transients occur in rapid succession, the average
power dissipation is 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.The operating values of a MOV need to be derated
at high temperatures as shown in the diagram below.
Because varistors only dissipate a relatively small amount
of average power they are not suitable for repetitive
applications that involve substantial amounts of average
power dissipation.
Current Energy and Power Derating Curve
Figure 1
100
90
80
70
60
50
40
30
20
10
0
-55
50
60
70
AMBIENT TEMPERATURE (
80
90
100
110
o
120
C)
Radial Lead Varistors > LA Series
130
140 150
Varistor Products
Revision: August 4, 2010
Peak Pulse Current Test Waveform
Figure 2
0
T = Time from 10% to 90% of Peak
T
T
Example - For an 8/20 μs Current Waveform:
1
1
2
= Virtual Origin of Wave
O
= Rise Time = 1.25 x T
= Decay Time
100
1
90
50
10
8μs = T
20μs = T
Please refer to www.littelfuse.com/series/la.html for current information.
1
2
= Rise Time
= Decay Time
T
T
1
T
2
Specifications are subject to change without notice.
TIME
©2010 Littelfuse, Inc.