Littelfuse C-III Varistor Series - Manual

© 2013 Littelfuse, Inc. 113
Revised: June 5, 2013
Varistor Products
C-III Varistor Series
Radial Lead Varistors > C-III series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/c-iii.html for current information.
C–III Series
C-III Varistor Series
Description
The C-III Series of Metal-Oxide Varistors (MOVs) are
specifically designed for applications requiring high surge
energy absorption ratings and superior multiple pulse
absorption rating. This is achieved through a special
dielectric material formulation which also results in
higher repetitive surge ratings than other MOV types.
The C-III Series is primarily intended for use in AC
line Transient Voltage Surge Suppressor (TVSS)
product environment and other similar applications
requiring high transient energy and peak current
capability in a relatively small package size.
Features
• Lead–free, Halogen-
Free and RoHS
compliant
• High energy
absorption capability
W
TM
40J to 530J (2ms)
• High pulse life rating
• High peak pulse
current capability
I
TM
3500A to
10,000A (8/20μs)
• Wide operating
voltage range
V
M(AC)RMS
130V to 1000V
• Available in tape and
reel for automatic
insertion; Also available
with crimped and/or
trimmed lead styles
• No derating up to
85ºC ambient
• The C-III Series is
supplied in 10mm,
14mm and 20mm
disc versions with
various lead options
Agency Approvals
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Agency Agency File Number
E320116
LR91788
116895
42201-006
Continuous C-III Series Units
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
) 130 to 1000 V
Transients:
Single-Pulse Peak Current (I
TM
) 8/20μs Wave
(See Peak Pulse Current Test Waveform)
3500 to 10,000 A
Single-Pulse Energy Range (W
TM
) 2ms Rectangular Wave 40 to 530 J
Operating Ambient Temperature Range (T
A
) -55 to +85 ºC
Storage Temperature Range (T
STG
) -55 to +125 ºC
Temperature Coefficient (a V ) of Clamping Voltage (V
C
) at Specified Test Current <0.01 %/ºC
Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 2500 V
COATING Insulation Resistance 1000 MΩ
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.
RoHS