Varistor Metal Oxide Varistor Products Page 81 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) Surface Mount Varistors > SM20 Series Part Numbering System For "VARISTOR" Max Voltage Rating (Two or three digits -- refer to ratings and specifications table) V 275 SM20 SM20 SERIES 8 6 38 S1 S2 Soldering Pad Layout H1 H2 t W D Product Dimensions Symbol Millimeters Min Max D (diameter) --- 26 H1 --- 10.5 H2 1.0 -- t 0.50 0.70 S1 32.5 35 S2 3.0 4.5 W 6.2 6.6 Packaging 192 mm 30 mm typical 192 mm 30 mm typical 8.4 mm typical Radius 30 mm typical 11.7 mm pocket depth Standard Packaging is in "Waffle" trays: Quantity per tray: 36 pieces Quantity per box: 108 pieces Operating Ambient Temperature Range (T A ) -40C to +85C Storage Temperature Range(T STG ) -55C to 125C Solvent Resistance MIL STD 202, Method 215 Moisture Sensitivity Level 1, J-STD-020 Lead Material Folded Tin Plated Metal Leads Soldering Characteristics J-STD-002 Coating Molded Plastic Meets UL94 V-0 Requirement Physical Specifications Environmental Specifications Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at

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