Metal Oxide VaristOrs
Features
•
Our Metal Oxide Varistors have UL, CSA and VDE approvalsꢀ VDE approvals are in conjunction
with IEC61051-2ꢀ Plus specific types comply with Accelerated Aging Test Requirements per ANSI/
IEEE C62ꢀ11ꢀ The factory is ISO and TS16949 certifiedꢀ Taped Parts conform to EIA standardsꢀ All
electrical specifications are to industry standards with definitions conforming to IEEE specificationsꢀ
Solderability to MIL STDꢀ Epoxy flammability rating of 94V0ꢀ
ISO
9002
SGS
•
RoHS Compliance - Metal Oxide Varistors utilizing suffix (-N) denoting RoHS compliant types for
disk sizes 05, 07, 10,14, 18, 20, 25, 32, 34, 40, and 53 purchased from World Products, LLC comply with RoHS
Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the
use of certain hazardous substances in electrical and electronic equipmentꢀ Our metal oxide varistors contain a
maximum concentration value of 0ꢀ1% by weight in homogeneous materials for lead, mercury, hexavalent chromium,
polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) and of 0ꢀ01% weight in homogeneous
materials for cadmiumꢀ See Part Number System for more detailsꢀ
•
•
•
Product consistency is maintained through extremely stringent quality and statistical controlꢀ On-line automatic test
equipment provides 100% inspectionꢀ
Extensive selection of equivalents to essentially all metal oxide varistor typesꢀ All specifications available for proper
accurate design-in purposesꢀ
Extremely low leakage current levels achieved and exceptional surge handling capability through proprietary
formulationsꢀ
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•
Epoxy conformity and control providing for consistent physical dimensions and improved solderabilityꢀ
Varistor product design flexibility and quick design cycles in order to assist our customers with their most stringent
varistor applicationsꢀ
Definition of Terms (according to IEEE specifications C62.33)
Average Power Dissipation: Tested using two consecutive pulses at rated peak current using a 10/1000µs test
waveform with a minimum pulse period of 60 seconds between pulses (IEC 61000-4-5)ꢀ
Rated RMS Voltage, Rated DC Voltage: The maximum designated values of power system voltage that may be applied
continuously between the terminals of a deviceꢀ
Varistor Voltage: Test characteristic that is used to classify varistors by typeꢀ A test current of 1mA DC is typically
used to determine varistor voltage classification typeꢀ Varistor voltage clamping characteristics can be defined
at various test levelsꢀ
Rated Peak Single Pulse Transient Current: Maximum surge current, 8/20μs waveform which a varistor is rated to
withstand for a single surgeꢀ
Rated Single Pulse Transient Energy: Maximum allowable energy for a single impulse (see specified waveforms)ꢀ
Maximum Clamping Voltage: Measured peak voltage across the device terminals when a current impulse of specified
amplitude and waveform is conducted through the varistorꢀ
Typical Capacitance: Typical capacitance values are measured at a test frequency of 1KHZꢀ
Power Dissipation Ratings
Disk Size
Pm-watts
0ꢀ01
Disk Size
Pm-watts
0ꢀ20
5mm ( < 50 VAC )
5mm ( ≥ 50 VAC )
7mm ( < 50 VAC )
7mm ( ≥ 50 VAC )
10mm ( < 50 VAC )
10mm ( ≥ 50 VAC )
14mm ( < 50 VAC )
14mm ( ≥ 50 VAC )
20mm ( < 50 VAC )
20mm ( ≥ 50 VAC )
25mm
0ꢀ20
0ꢀ02
0ꢀ25
0ꢀ05
0ꢀ40
0ꢀ10
0ꢀ60
1ꢀ00
1ꢀ20
1ꢀ60
2ꢀ10
2ꢀ73
2ꢀ10
2ꢀ50
32mm
34mm (Single)
34mm (Dual)
40mm
53mm
WORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com
Rev. 9.9
2 | Metal Oxide Varistors
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