Varistor Metal Oxide Varistor Products Page 74 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 > SM7 Series SM7 Series Ratings & Specifications Maximum Rating (85C) Specifications (25C) Continuous Transient Varistor Voltage at 1mA DC Test Current Maximum Clamping Voltage 8 x 20 s Typical Capacitance f = 1MHz V RMS V DC Energy 10 x 1000 s Peak Current 8 x 20 s Part Number V M(AC) V M(DC) W TM I TM V NOM Min V NOM Max V C I PK C (V) (J) (A) (V) (A) (pF) V50SM7 50 68 4 1200 73 91 135 10 700 V60SM7 60 81 5 1200 90 110 165 10 600 V115SM7 115 153 10 1200 162 198 300 10 200 V130SM7 130 175 11 1200 184 228 340 10 180 V140SM7 140 180 12 1200 198 242 360 10 160 V150SM7 150 200 13 1200 212 268 395 10 150 V175SM7 175 225 15 1200 247 303 455 10 130 V230SM7 230 300 20 1200 324 396 595 10 100 V250SM7 250 330 21 1200 354 429 650 10 90 V275SM7 275 369 23 1200 389 473 710 10 80 V300SM7 300 405 25 1200 420 517 775 10 70 V320SM7 320 420 25 1200 462 565 850 10 65 V385SM7 385 505 27 1200 558 682 1025 10 60 V420SM7 420 560 30 1200 610 748 1120 10 55 V460SM7 460 615 37 1200 640 790 1190 10 55 V480SM7 480 640 35 1200 670 825 1240 10 50 V510SM7 510 675 40 1200 735 910 1200 10 45 Part Numbering System For "VARISTOR" V M(AC) (Three digits -- 115V to 510V) V 275 SM7 SM7 SERIES All dimensions shown in milimeters 3.00.3 1.50.3 0.3 max 6.5 13.1 3.5 Soldering Pad Layout 11.40.3 8.30.3 3.6+/-0.3 for V50SM7-V60SM7 6.0+/-0.3 for V115SM7 to V510SM7 Product Dimensions

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