Littelfuse CH Varistor Series - Manual

© 2013 Littelfuse, Inc. 69
Revised: May 8, 2013
Varistor Products
CH Varistor Series
Surface Mount Varistors > CH Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/CH.html for current information.
CH Series
CH Varistor Series
RoHS
Description
CH Series transient surge suppressors are small,
metal-oxide varistors (MOVs) manufactured in leadless
chip form. They are intended for use in a variety of
applications from low voltage DC to off-line board-level
protection. These devices, which have significantly
lower profiles than traditional radial lead varistors,
permit designers to reduce the size and weight and
increase the reliability of their equipment designs.
CH Series varistors are available in a voltage range from
14V to 275V (V
M(AC)RMS
), and energy ratings up to 8J.
See the Littelfuse Multilayer Suppressor Series also.
Features
• Lead–free
• Leadless, surface
mount chip in 5
x 8mm Size
• Voltage ratings
V
M(AC)RMS
14V to 275V
• Supplied in tape and
reel or bulk pack
• No derating up to
125ºC ambient
Agency Approvals
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous CH Series Units
Steady State Applied Voltage:
AC Voltage Range (V
M(AC)RMS
) 14 to 275 V
DC Voltage Range (V
M(DC)
) 18 to 369 V
Transient:
Peak Pulse Current (I
TM
)
For 8/20μs Current (See Figure 2) 100 to 250 A
Single Pulse Energy Range
For 10/1000μs Current Wave (W
TM
) 1.0 to 8.0 J
Operating Ambient Temperature Range (T
A
) -55 to +125 ºC
Storage Temperature Range (T
STG
) -55 to +150 ºC
Temperature Coefficient (DV) of Clamping Voltage (V
C
) at Specified Test Current <0.01 %/ºC
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.
AGENCY AGENCY FILE NUMBER
UL E320116
Recognized under the components program of
Underwriters Laboratories.