Varistor Metal Oxide Varistor Products Page 177 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > DA/DB Series Repetitive Surge Capability Maximum Clamping Voltage V131DA40 - V751DA40 and V131DB40 - V751DB40 200 6,000 5,000 4,000 3,000 1,000 900 800 700 600 500 400 300 10 -2 10 -1 10 0 10 1 10 2 10 3 10 4 10 5 MAXIMUM CLAMPING VOLTAGE DISC SIZE 40mm 130 TO 750 VM(AC) RATING T A = -55 o C to 85 o C V421DA/DB40 V151DA/DB40 V751DA/DB40 MAXIMUM PEAK VOLTS (V) PEAK AMPERES (A) V131DA/DB40 V321DA/DB40 V271DA/DB40 V251DA/DB40 V511DA/DB40 V481DA/DB40 V571DA/DB40 V661DA/DB40 2,000 Operating Temperature -55C to +85C Storage Temperature -55C to +125C Humidity Aging +85C, 85% RH, 1000 hours +/- 5% typical resistance change Thermal Shock +85C to -40C 10 times +/- 5% typical resistance change Solvent Resistance MIL-STD-202, Method 215 Moisture Sensitivity Level 1, J-STD-020 Lead Material DA - Copper, Tin-plated DB - Brass, Tin-plated Insulating Material Cured, flame retardant epoxy polymer meets UL94V-0 requirements. Device Labeling Marked with LF, part number and date code Physical Specifications Environmental Specifications NOTE: If pulse ratings are exceeded, a shift of V N(DC) (at specified current) of more than +/-10% could result. This type of shift, which normally results in a decrease of V N(DC) , may result in the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection. V131DA40 - V751DA40 and V131DB40 - V751DB40 Figure 3 Figure 4 DISC SIZE 40mm V131DA40 - V751DA40 50,000 20,000 10,000 5,000 2,000 1,000 500 200 100 50 20 10 20 100 1,000 10,000 SURGE CURRENT (A) IMPULSE DURATION ( s) V131DB40 - V751DB40 2 1 INDEFINITE 10 4 10 3 10 2 10 5 10 6 10

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