varistors require very little mounting space, and are
offered in various standard lead form options.
The LA Varistor Series are available in four model
sizes: 7mm, 10mm, 14mm and 20mm; and have a
V
M(AC)RMS
voltage range from 130V to 1000V, and an
energy absorption capability up to 360J. Some LA Series
model numbers are available with clamping voltage
selections, designated by a model number suffix of
either A or B. The 'A' selection is the standard model;
the 'B' selection provides a lower clamping voltage.
See LA Series Device Ratings and Specifications
Table for part number and brand information.
Features
• Lead–free, Halogen-
Free and RoHS
compliant.
•
91788
Agency Approvals
Agency
Agency Approval
Agency File
Number
UL1449
CECC 42201-006
IEC 61051-1
IEC 61051-2
IEC 60950-1 (Annex Q) for 14mm and
20mm only
22.2-1
CECC 42201-006
IEC 61051-1
IEC 61051-2
IEC 60950-1 (Annex Q) for 14mm and
20mm only
E320116
116895
•
•
No derating up to
85ºC ambient
Available in tape and
reel or bulk pack
Energy absorption
capability (W
TM
)
up to 360J
Wide operating
voltage range
V
M(AC)RMS
130V to 1000V
•
E1273/F
Additional Information
Datasheet
Resources
Samples
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
)
DC Voltage Range (V
M(DC)
)
LA Series
130 to 1000
175 to 1200
Units
V
V
Transients:
Peak Pulse Current (I
TM
)
For 8/20µs Current Wave (See Figure 2)
Single Pulse Energy Range
For 10/1000µs Current Wave (W
TM
)
Operating Ambient Temperature Range (T
A
)
Storage Temperature Range (T
STG
)
Temperature Coefficient (a ) of Clamping Voltage (V
C
) at Specified Test Current
V
1200 to 6500
11 to 360
-55 to +85
-55 to +125
<0.01
2500
1000
A
J
O
O
C
C
%/
O
C
V
MΩ
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
(Dielectric must withstand indicated DC voltage for one minute per MIL
-STD 202, Method 301)
COATING Insulation Resistance
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.
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