Metal-Oxide Varistors (MOVs) Surface Mount Multilayer Varistors (MLVs) > MLE Series RoHS MLE Varistor Series Description The MLE Series family of transient voltage suppression devices are based on the Littelfuse multilayer fabrication technology. These components are designed to suppress ESD events, including those specified in IEC 61000-4-2 or other standards used for Electromagnetic Compliance testing. The MLE Series is typically applied to protect integrated circuits and other components at the circuit board level operating at 18V , or less. DC The fabrication method and materials of these devices result in capacitance characteristics suitable for high frequency attenuation/low-pass filter circuit functions, thereby providing suppression and filtering in a single device. The MLE Series is manufactured from semiconducting ceramics and is supplied in a leadless, surface mount package. The MLE Series is compatible with modern Size Table reflow and wave soldering procedures. Metric EIA Littelfuse Inc. manufactures other Multilayer Series 1005 0402 products. See the ML Series data sheet for higher energy/ 1608 0603 peak current transient applications. See the AUML Series 2012 0805 for automotive applications and the MLN Quad Array. For 3216 1206 highspeed applications see the MHS Series. Applications Features Protection of Used in mobile Halogen-Free and Leadless 0402, 0603, components and communications, RoHS Compliant 0805, and 1206 sizes circuits sensitive computer/EDP Rated for ESD Operating voltages to ESD Transients products, medical (IEC-61000-4-2) up to 18V M(DC) occurring on power products, hand held/ Characterized for Multilayer ceramic supplies, control portable devices, impedance and construction technology and signal lines industrial equipment, capacitance including diagnostic Suppression of port protection and -40C to +125C ESD events such as I/O interfaces operating temp. range specified in IEC-61000- 4-2 or MIL-STD-883 Method-3015.7, for electromagnetic compliance (EMC) Additional Information Absolute Maximum Ratings For ratings of individual members of a series, see device ratings and specifications table. Continuous MLE Series Units Steady State Applied Voltage: DC Voltage Range (V ) 18 V M(DC) Operating Ambient Temperature Range (T ) -40 to +125 C A Datasheet Resources Samples Storage Temperature Range (T ) -40 to +150 C STG 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BO.11/18/20Metal-Oxide Varistors (MOVs) Surface Mount Multilayer Varistors (MLVs) > MLE Series Device Ratings and Specifications Performance Specifications (25C) Max Continuous Maximum Clamping Working Voltage Nominal Maximum ESD Clamp Voltage Voltage at Specified Typical -55C to 125C Voltage (Note 2) Current (8/20s) Part Number Capacitance at 1MHz (Note 1) V at 8kV Contact 15kV Air NOM V C V 1mA DC (Note 3) (Note 4) M(DC) (V) MIN (V) MAX (V) (V) (V) Clamp (V) (pF) V18MLE0402N 18 22 28 50 at 1A <125 <110 <55 (Note 8) V18MLE0402F 18 22 28 50 at 1A <125 <110 <55 V18MLE0603N 18 22 28 50 at 1A <75 <110 <125 (Note 8) V18MLE0603F 18 22 28 50 at 1A <75 <110 <125 V18MLE0603LN 18 22 28 50 at 1A <100 <140 <100 V18MLE0805N 18 22 28 50 at 1A <70 <75 <500 V18MLE0805LN 18 22 28 50 at 1A <75 <135 <290 V18MLE1206N 18 22 28 50 at 1A <65 <65 <1700 NOTES: 1. For applications of 18V or less. Higher voltages available, contact your Littelfuse Sales Representative. DC 2. Tested with IEC-61000-4-2 Human Body Model (HBM) discharge test circuit. 3. Direct discharge to device terminals (IEC preferred test method). 4. Corona discharge through air (represents actual ESD event). 5. Capacitance may be customized, contact your Littelfuse Sales Representative. 6. Leakage current ratings are at 18 V and 25A maximum. DC 7. The typical capacitance rating is the discrete component test result. 8. Items are lead free, and available as packing option only. Nominal Voltage Stability to Multiple ESD Impulses Peak Current and Energy Derating Curve (8kV Contact Discharges per IEC 61000-4-2) For applications exceeding 125C ambient temperature, the peak surge current and energy ratings must be reduced as shown below. 30 100 25 80 20 60 15 40 10 20 5 0 0 -55 50 60 70 80 90 100110 120130 140150 1 10 1000 100 10000 o AMBIENT TEMPERATURE ( C) Figure 2 CURRENT (A) Figure 1 FIGURE 1. PEAK CURRENT AND ENERGY DERATING CURVE FIGURE 2. NOMINAL VOLTAGE STABILITY TO MULTIPLE ESD IMPULSES (8KV CONTACT DISCHARGES PER IEC 61000-4-2) Standby Current at Normalized Varistor Voltage and Impedance (Z) vs Frequency Typical Characteristic Temperature 100 1.2 -0402 1.0 -0603 10 0.8 -0805 O 25 -1206 0.6 1 O 85 0.4 0.1 O 125 0.2 0.0 0.01 0.0001 0.001 0.01 0.1 1 10 100 1000 10000 Figure 3 Figure 4 CURRENT (mA) FREQUENCY (MHz) FIGURE 4. IMPEDANCE (Z) vs FREQUENCY FIGURE 3. STANDBY CURRENT AT NORMALIZED VARISTOR TYPICAL CHARACTERISTIC VOLTAGE AND TEMPERATURE 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BO.11/18/20 NORMALIZED VARISTOR VOLTAGE (V) PERCENT OF RATED VALUE NOMINAL VOLTAGE AT 1mADC IMPEDANCE (Z)