CH Varistors - CH Surface Mount Varistor Series

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CH Series Data Sheet
Littelfuse_MOV_CH.pdf
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Last Uploaded: August 31, 2010

Series: CH

CH Surface Mount Varistor Series

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 23J.

Electrical Characteristics

Access specifications, certifications, check availability and order parts below:

Check distributor stock availability by clicking on the [CHECK] link. View certification PDF files by clicking on the certification logo. View the part details by clicking on the part number. To order sample parts, click on the [ADD] link. Click on the 'Key' button to view definitions for each column header. Sort parts by clicking on the column you wish to sort by.

CatalogNo	Size	V_MAX AC (V)	V_MAX DC (V)	W_TM (J)	(I_TM 1xAmps (A)	V_NDC (V)	V_NDC MIN (V)	V_NDC MAX (V)	V_c (V)	Stock	Sample Cart
V120CH8	3220 (8552)	75	102	2	250	120	108	132	200	[Check]	[Add]
V150CH8	3220 (8552)	95	127	3	250	150	135	165	250	[Check]	[Add]
V180CH8	3220 (8552)	115	153	4	250	180	162	198	295	[Check]	[Add]
V200CH8	3220 (8552)	130	175	4	250	200	184	228	340	[Check]	[Add]
V220CH8	3220 (8552)	140	180	5	250	220	198	242	360	[Check]	[Add]
V22CH8	3220 (8552)	14	18	1	100	22	18.7	26	47	[Check]	[Add]
V240CH8	3220 (8552)	150	200	5	250	240	212	268	395	[Check]	[Add]
V27CH8	3220 (8552)	17	22	1	100	27	23	31.1	57	[Check]	[Add]
V33CH8	3220 (8552)	20	26	1	100	33	29.5	36.5	68	[Check]	[Add]
V360CH8	3220 (8552)	230	300	6	250	360	324	396	595	[Check]	[Add]
V390CH8	3220 (8552)	250	330	7	250	390	354	429	650	[Check]	[Add]
V39CH8	3220 (8552)	25	31	1	100	39	35	43	79	[Check]	[Add]
V430CH8	3220 (8552)	275	369	8	250	430	389	473	710	[Check]	[Add]
V47CH8	3220 (8552)	30	38	1.2	100	47	42	52	92	[Check]	[Add]
V56CH8	3220 (8552)	35	45	1.4	100	56	50	62	107	[Check]	[Add]
V68CH8	3220 (8552)	40	56	3	250	68	61	75	127	[Check]	[Add]

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Technical Resources

Application Notes

Plant Certifications

PSPICE Models

Reliability Reports

CH Series Reliability Data Summary
CHSeries.html (10 K)

Environmental Data

Environmental Info

RoHS Date: 2005-06-01 00:00:00
ICP Test Reports
ICPTest CH Series.pdf
LITTELFUSE-ICP Test CH Series 5-18-2011.pdf
China RoHS Reports
ChinaRoHS VxxxCHxxx Series.pdf

	AN9108 - Littelfuse "ML" Multilayer Surface Mount Surge Suppressors This application note focuses on the ML version multilayer suppressor. Littelfuse produces four families of multilayer suppressor, including the ML, MLE, MLN and AUML. Much of the information presented here is generic to all four. an9108.pdf (304 K)
	AN9211 - Soldering Recommendations for Surface Mount and Multilayer Metal Oxide Varistors This application note discusses recommendations for soldering surfacemount. MMOVcomponents. Surface mount technology has the advantages of lower costs, increased reliability and the reduction in the size and weight of components used. With these advantages, surface mount technology is fast becoming the norm in circuit design. an9211.pdf (262 K)
	AN9311 - The ABCs of MOVs The material in this application guide has been arranged in 3 parts for easy reference; Section A provides general guidelines on what types of MOV products are best suited for particular environments. Section B explains what Metal Oxide Varistors are and the basic function they perform. And section C helps clarify important information about MOVs for the design engineer, and answers questions that are asked most often. an9311.pdf (209 K)
	AN9671 - The ABCs of Littelfuse Multilayer Suppressors This application guide is similar to The ABCs of MOVs', offering specific information on Multilayer suppressor device technology and is intended to be a supplement to the Littelfuse Multilayer data sheets. Applications are covered, giving general examples of where these products are used. The Basics, describes the fundamental fabrication, operation and functions. And Common Questions addresses frequently asked questions from Production Engineers, and Designers. an9671.pdf (229 K)
	AN9767 - Littelfuse Varistors: Basic Properties, Terminology and Theory This application note describes the basic properties of varistors. Varistors are voltage dependent, nonlinear devices which have an electrical behavior similar to back-to-back zener diodes. The symmetrical, sharp breakdown characteristics enable the varistor to provide excellent transient suppression performance. Littelfuse_app-note_an9767.pdf (2,930 K)
	AN9768 - Transient Suppression Devices and Principles This application note discusses the two major categories of transient suppressors: a) those that attenuate transients, thus preventing their propagation into the sensitive circuit; and b) those that divert transients away from sensitive loads and so limit the residual voltages. an9768.pdf (279 K)
	AN9769 - An Overview of Electromagnetic and Lightning Induced Voltage Transients This application note is an overview of the sources and nature of various transient overvoltages, and the problems that may result. an9769.pdf (356 K)
	AN9773 - Varistor Testing This application note details the common tests of varistor parameters and describes suitable test methods using simplified test circuits. All tests are performed at 25° C, unless otherwise specified. The test circuits and methods given are intended as a general guide. Since the tests frequently entail high voltages and currents, users must exercise appropriate safety precautions. an9773.pdf (443 K)
	EC638 - Littelfuse Varistor Design Examples This application note is a guide for selecting a varistor by describing common application examples, and illustrating the solution process to determine the appropriate varistor. The note also describes series/parallel connection rules. EC638.pdf (356 K)

	Dongguan, BeiCe ISO 14001-2004 MOV Factory Littelfuse_Dongguan-BeiCe-MOV_ISO14001-2004.pdf (103 K)
	Dongguan, BeiCe ISO 9001-2000 MOV/MLV Factory Littelfuse_Dongguan-BeiCe-MOV_ISO9001-2000.pdf (773 K)
	Dongguan, BeiCe ISO TS16949 Littelfuse_Dongguan-BeiCe-MOV_ISO-TS16949.pdf (400 K)

	CH8 Series OLB Graphic File CH8SERIES.OLB (15 K)
	CH8 Series PSpice lib File CH8series.lib (3 K)
	CH8 Series slb File CH8series.slb (8 K)