V68MLA1206NH

Metal-Oxide Varistors (MOVs) Surface Mount Multilayer Varistors (MLVs) > MLA Series MLA Varistor Series RoHS Description The MLA Series family of transient voltage surge suppression devices is based on the Littelfuse Multilayer fabrication technology. These components are designed to suppress a variety of transient events, including those specified in IEC 61000-4-2 or other standards used for Electromagnetic Compliance (EMC). The MLA Series is typically applied to protect integrated circuits and other components at the circuit board level. The wide operating voltage and energy range make the MLA Series suitable for numerous applications on power supply, control and signal lines. The MLA Series is manufactured from semiconducting ceramics, and is supplied in a leadless, surface mount package. The MLA Series is compatible with modern reflow and wave soldering procedures. Size Table Metric EIA 1005 0402 1608 0603 2012 0805 3216 1206 3225 1210 It can operate over a wider temperature range than Zener diodes, and has a much smaller footprint than plastichoused components. Absolute Maximum Ratings • For ratings of individual members of a series, see device ratings and specifications table. Continuous Steady State Applied Voltage: Littelfuse Inc. manufactures other multilayer series products. See the MLE Series data sheet for ESD applications, MHS Series data sheet for high-speed ESD applications, the MLN Series for multiline protection and the AUML Series for automotive applications. ML Series Units DC Voltage Range (VM(DC)) 3.5 to 120 V AC Voltage Range (VM(AC)RMS) 2.5 to 107 V Non-Repetitive Surge Current, 8/20µs Waveform, (ITM) 4 to 500 A Non-Repetitive Surge Energy, 10/1000µs Waveform, (WTM) 0.02 to 2.5 J Operating Ambient Temperature Range (TA) -55 to +125 ºC • Storage Temperature Range (TSTG) -55 to +150 ºC • Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current MLA Series Device Ratings and Specifications Part Number V3.5MLA0603N5 V3.5MLA0805N V3.5MLA0805LN V3.5MLA1206N V5.5MLA0402N V5.5MLA0402F8 V5.5MLA0402LN V5.5MLA0402LF8 V5.5MLA0603N5 V5.5MLA0603LN4 V5.5MLA0603LF8 V5.5MLA0805N V5.5MLA0805LN V5.5MLA1206N V9MLA0402N V9MLA0402F8 V9MLA0402LN V9MLA0402LF8 V9MLA0603N5 V9MLA0603LN4 V9MLA0603LF8 V9MLA0805LN V12MLA0805LN V14MLA0402N V14MLA0402F8 V14MLA0603N V14MLA0603F8 V14MLA0805N V14MLA0805LN V14MLA1206N V18MLA0402N V18MLA0402F8 V18MLA0603N V18MLA0603F8 V18MLA0805N V18MLA0805LN V18MLA1206N V18MLA1210N V18MLA1812N7 V26MLA0603N V26MLA0603F8 V26MLA0805N V26MLA0805LN V26MLA1206N V26MLA1210N V30MLA0603N V30MLA0603F8 V30MLA0805LN V30MLA1206N V30MLA1210N V30MLA1210LN Maximum Continuous Working Voltage VM(DC) (V) 3.5 3.5 3.5 3.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 5.5 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 12.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 18.0 26.0 26.0 26.0 26.0 26.0 26.0 30.0 30.0 30.0 30.0 30.0 30.0 VM(AC) (V) 2.5 2.5 2.5 2.5 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 9.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 20.0 20.0 20.0 20.0 20.0 20.0 25.0 25.0 25.0 25.0 25.0 25.0 © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Maximum Ratings (125º C) Maximum NonMaximum NonMaximum Clamping repetitive Surge repetitive Surge Voltage at 1A (or as Current (8/20µs) Energy (10/1000µs) Noted) (8/20µs) ITM (A) 30 120 40 100 20 20 20 20 30 30 30 120 40 150 20 20 4 4 30 30 30 40 40 20 20 30 30 120 40 150 20 20 30 30 120 40 150 500 1000 30 30 100 40 150 300 30 30 30 180 280 220 WTM (J) 0.100 0.300 0.100 0.300 0.050 0.050 0.050 0.05 0.100 0.100 0.100 0.300 0.100 0.400 0.050 0.050 0.020 0.020 0.100 0.100 0.100 0.100 0.100 0.050 0.050 0.100 0.100 0.300 0.100 0.400 0.050 0.050 0.100 0.100 0.300 0.100 0.400 2.500 2.900 0.100 0.100 0.300 0.100 0.600 1.200 0.100 0.100 0.100 1.000 1.200 0.900 VC (V) 13.0 13.0 13.0 13.0 21.0 21.0 39.0 39 17.5 17.5 17.5 17.5 17.5 17.5 30.0 30.0 35.0 35.0 25.5 25.5 25.5 25.5 29.0 39.0 39.0 34.5 34.5 32.0 32.0 32.0 50.0 50.0 50.0 50.0 44.0 44.0 44.0 44.0 at 2.5 44.0 at 5 60.0 60.0 60.0 60.0 60.0 60.0 at 2.5 74.0 74.0 72.0 67.0 68.0 at 2.5 68.0 at 2.5 Specifications (25ºC) Nominal Voltage Typical at 1mA DC Test Capacitance Current at f = 1MHz VN(DC) Min VN(DC) Max (V) (V) 3.7 7.0 3.7 7.0 3.7 7.0 3.7 7.0 7.1 10.8 7.1 10.8 15.9 21.5 15.9 21.5 7.1 9.3 7.1 9.3 7.1 9.3 7.1 9.3 7.1 9.3 7.1 9.3 11.0 16.0 11.0 16.0 11.0 16.0 11.0 16.0 11.0 16.0 11.0 16.0 11.0 16.0 11.0 16.0 14.0 18.5 15.9 21.5 15.9 21.5 15.9 21.5 15.9 21.5 15.9 20.3 15.9 20.3 15.9 20.3 22.0 28.0 22.0 28.0 22.0 28.0 22.0 28.0 22.0 28.0 22.0 28.0 22.0 28.0 22.0 28.0 22.0 28.0 31.0 38.0 31.0 38.0 29.5 38.5 29.5 38.5 29.5 38.5 29.5 38.5 37.0 46.0 37.0 46.0 37.0 46.0 35.0 43.0 35.0 43.0 35.0 43.0 C (pF) 1270 1760 1380 5800 220 220 70 70 960 450 450 1200 660 2800 120 120 33 33 490 360 360 320 220 70 70 80 180 360 200 800 40 40 60 120 260 170 1030 2500 4050 55 110 110 90 630 1250 45 90 85 400 685 500 Metal-Oxide Varistors (MOVs) Surface Mount Multilayer Varistors (MLVs) > MLA Series Device Ratings and Specifications (Continue...) Part Number V30MLA1812N7 V33MLA1206N V38MLA1812N7 V42MLA1206N V45MLA1812N7 V48MLA1206N V48MLA1210N V48MLA1210LN V56MLA1206N V60MLA1210N V68MLA1206N V85MLA1210N V120MLA1210N Maximum Continuous Working Voltage VM(DC) (V) 30.0 33.0 38.0 42.0 45.0 48.0 48.0 48.0 56.0 60.0 68.0 85.0 120.0 Maximum Ratings (125º C) Maximum NonMaximum NonMaximum Clamping repetitive Surge repetitive Surge Voltage at 1A (or as Current (8/20µs) Energy (10/1000µs) Noted) (8/20µs) VM(AC) (V) 25.0 26.0 30.0 30.0 35.0 40.0 40.0 40.0 40.0 50.0 50.0 67.0 107.0 ITM (A) 800 180 800 180 500 180 250 220 180 250 180 250 125 WTM (J) 3.700 0.800 4.500 0.800 4.000 0.900 1.200 0.900 1.000 1.500 1.000 2.500 2.000 VC (V) 65.0 at 5 75.0 77.0 at 5 92.0 90.0 at 5 100.0 105.0 at 2.5 105.0 at 2.5 120.0 130.0 at 2.5 140.0 180.0 at 2.5 260.0 at 2.5 Specifications (25ºC) Nominal Voltage Typical at 1mA DC Test Capacitance Current at f = 1MHz VN(DC) Min VN(DC) Max (V) (V) 35.0 43.0 38.0 49.0 43.0 52.0 46.0 60.0 50.4 61.6 54.5 66.5 54.5 66.5 54.5 66.5 61.0 77.0 67.0 83.0 76.0 90.0 95.0 115.0 135.0 165.0 C (pF) 1900 390 1450 345 1200 185 400 380 180 230 130 160 70 NOTES: 1 'L' suffix is a low capacitance and energy version; Contact your Littelfuse sales representative for custom capacitance requirements. 2 Typical leakage at 25ºC MLA Series Clamping Voltage Over Temperature (VC at 10A) Device Characteristics At low current levels, the V-I curve of the multilayer transient voltage suppressor approaches a linear (ohmic) relationship and shows a temperature dependent effect. At or below the maximum working voltage, the suppressor is in a high resistance modex (approaching 106Ω at its maximum rated working voltage). Leakage currents at maximum rated voltage are below 100µA, typically 25µA; for 0402 size below 20µA, typically 5µA. CLAMPING VOLTAGE (V) 100 V26MLA1206 V5.5MLA1206 Typical Temperature Dependance of the Haracteristic Curve in the Leakage Region 10 -60 -40 -20 0 Figure 11 VNOM VALUE AT 25 oC (%) SUPPRESSOR VOLTAGE IN PERCENT OF 100% 20 40 60 80 TEMPERATURE ( oC) 100 120 140 FIGURE 12. CLAMPING VOLTAGE OVER TEMPERATURE (VC AT 10A) Energy Absorption/Peak Current Capability 25 10% 1E -9 o 50o 75o 1E -8 100o 125 oC 1E -7 Figure 10 1E -6 1E -5 1E -4 1E -3 1E -2 SUPPRESSOR CURRENT (ADC) FIGURE 10. TYPICAL TEMPERATURE DEPENDANCE OF THE CHARACTERISTIC CURVE IN THE LEAKAGE REGION Speed of Response The Multilayer Suppressor is a leadless device. Its response time is not limited by the parasitic lead inductances found in other surface mount packages. The response time of the ZNO dielectric material is less than 1ns and the MLA can clamp very fast dV/dT events such as ESD. Additionally, in "real world" applications, the associated circuit wiring is often the greatest factor effecting speed of response. Therefore, transient suppressor placement within a circuit can be considered important in certain instances. Energy dissipated within the MLA Series is calculated by multiplying the clamping voltage, transient current and transient duration. An important advantage of the multilayer is its interdigitated electrode construction within the mass of dielectric material. This results in excellent current distribution and the peak temperature per energy absorbed is very low. The matrix of semiconducting grains combine to absorb and distribute transient energy (heat) (see Speed of Response). This dramatically reduces peak temperature; thermal stresses and enhances device reliability. As a measure of the device capability in energy and peak current handling, the V26MLA1206A part was tested with multiple pulses at its peak current rating (3A, 8/20µs). At the end of the test,10,000 pulses later, the device voltage characteristics are still well within specification. Repetitive Pulse Capability Multilayer Internal Construction 100 PEAK CURRENT = 3A 8/20 s DURATION, 30s BETWEEN PULSES FIRED CERAMIC DIELECTRIC VOLTAGE V26MLA1206 METAL ELECTRODES METAL END TERMINATION 10 DEPLETION 0 REGION Figure 13 DEPLETION REGION Figure 12 GRAINS FIGURE 11. MULTILAYER INTERNAL CONSTRUCTION © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 2000 4000 6000 8000 NUMBER OF PULSES FIGURE 13. REPETITIVE PULSE CAPABILITY 10000 12000 Metal-Oxide Varistors (MOVs) Surface Mount Multilayer Varistors (MLVs) > MLA Series Lead (Pb) Soldering Recommendations Wave soldering is the most strenuous of the processes. To avoid the possibility of generating stresses due to thermal shock, a preheat stage in the soldering process is recommended, and the peak temperature of the solder process should be rigidly controlled. When using a reflow process, care should be taken to ensure that the MLA chip is not subjected to a thermal gradient steeper than 4 degrees per second; the ideal gradient being 2 degrees per second. During the soldering process, preheating to within 100 degrees of the solder's peak temperature is essential to minimize thermal shock. Once the soldering process has been completed, it is still necessary to ensure that any further thermal shocks are avoided. One possible cause of thermal shock is hot printed circuit boards being removed from the solder process and subjected to cleaning solvents at room temperature. The boards must be allowed to cool gradually to less than 50º C before cleaning. 250 250 MAXIMUM TEMPERATURE MAXIMUM230°C TEMPERATURE 230°C 250 200 200 TEMPERATURE °C°C TEMPERATURE TEMPERATURE °C The recommended solder for the MLA suppressor is a 62/36/2 (Sn/Pb/Ag), 60/40 (Sn/Pb) or 63/37 (Sn/Pb). Littelfuse also recommends an RMA solder flux. Reflow Solder Profile 40-80 MAXIMUM TEMPERATURE 40-80 SECONDS 230°C SECONDS ABOVE 183°C ABOVE 183°C RAMP RATE40-80 SECONDS RAMP RATE