V18AUMLA1210NH

Varistor Products Surface Mount Multilayer Varistors (MLVs) > AUML Series RoHS AUML Varistor Series Description The AUML Series of Multilayer Transient Surge Suppressors was specically designed to suppress the destructive transient voltages found in an automobile. The most common transient condition results from large inductive energy discharges. The electronic systems in the automobile, e.g. antilock brake systems, direct ignition systems, engine control, airbag control systems, wiper motor controls, etc., are susceptible to damage from these voltage transients and thus require protection. The AUML transient suppressors have temperature independent suppression characteristics affording protection from -55C to 125C. The AUML suppressor is manufactured from semiconducting Size Table ceramics which offer rugged protection and excellent transient energy absorption in a small package. The devices Metric EIA are available in ceramic leadless chip form, eliminating lead inductance and assuring fast speed of response to transient     surges. These Suppressors require signicantly smaller 3225   space and land pads than Silicon TVS diodes, offering greater circuit board layout exibility for the designer. 4532 1812 Also see the Littelfuse ML, MLN and MLE Series of   Multilayer Suppressors. Applications Features t
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%FDB o 2 AMBIENT TEMPERATURE ( C) Figure 1 Maximum Leakage Current/Clamping Voltage Curve for Typical V-I Characteristics of the V18AUMLA2220 at -40C, AUML Series at 25C 25C, 85C and 125C 100 MAXIMUM LEAKAGE MAXIMUM CLAMPING VOLTAGE 100 1210/1206 1812 2220 1210/1206 o -40 C 10 o 10 25 C 1812 2220 o 85 C o 125 C 1 1 1A 10A 100A 1mA 10mA 100mA 1A 10A 100A 1000A 100mA 100A 10A 100A 1mA 10mA 1A 10A CURRENT CURRENT Figure 3 Figure 4 2010 Littelfuse, Inc. AUML Varistor Series Specications are subject to change without notice. Revision: September 14, 2010 Please refer to www.littelfuse.com/series/AUML.html for current information. VOLTAGE PERCENT OF RATED VALUE VOLTAGE PERCENT OF PEAK VALUE