Metal-Oxide Varistors - Littelfuse
Description
Metal-Oxide Varistors (MOVs)
Surface Mount Varistors > CH Series
CH Varistor Series
RoHS
Agency Approvals
Recognized under the components program of Underwriters Laboratories.
Agency
Agency Approval
Agency File Number
UL1449
E320116
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 (VM(AC)RMS), and energy ratings up to 8J.
See the Littelfuse Multilayer Suppressor Series also.
Features
• RoHS compliant
• Leadless, surface mount chip in 5 x 8mm Size
• Voltage ratings VM(AC)RMS 14V to 275V
• Supplied in tape and reel or bulk pack
• No derating up to 125ºC ambient
• High surge rated up to 600A
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous
CH Series
Steady State Applied Voltage
AC Voltage Range (VM(AC)RMS) DC Voltage Range (VM(DC))
Transient
14 to 275 18 to 369
Peak Pulse Current (ITM) For 8/20µs Current (See Figure 2)
100 to 600
Single Pulse Energy Range
For 10/1000µs Current Wave (WTM) Operating Ambient Temperature Range (TA) Storage Temperature Range (TSTG) Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current
1.
0 to 8.
0 -40 to +125 -40 to +150
<0.
01
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.
Units
V V
A
J ºC ºC %/ºC
Additional Information
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