V300LA40A Littelfuse Inc, V300LA40A Datasheet - Page 4
![VARISTOR 300V 165J 20MM RADL LA](/photos/1/43/14322/la-za_series-20mm_sml.jpg)
V300LA40A
Manufacturer Part Number
V300LA40A
Description
VARISTOR 300V 165J 20MM RADL LA
Manufacturer
Littelfuse Inc
Series
LAr
Datasheet
1.V250LA2P.pdf
(13 pages)
Specifications of V300LA40A
Varistor Voltage
517V
Current-surge
6.5kA
Number Of Circuits
1
Maximum Ac Volts
300VAC
Maximum Dc Volts
405VDC
Energy
165J
Package / Case
Disc 20mm
Product
MOV
Voltage Rating Dc
405 V
Voltage Rating Ac
300 V
Clamping Voltage
775 V
Peak Surge Current
6.5 KA
Capacitance
800 pF
Operating Temperature Range
- 55 C to + 85 C
Mounting
Radial
Dimensions
20 mm Dia.
Termination Style
Radial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
V300LA40AP
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.