Varistor Series Series family Transient Voltage Surge Suppression
|
|
|
Top Searches for this datasheet
Multilayer Transient Voltage Surge Suppressors
Varistor Series
Series family Transient Voltage Surge Suppression devices based Littelfuse Multilayer fabrication technology. These components designed suppress variety transient events, including those specified 61000-4-2 other standards used Electromagnetic Compliance (EMC). Series typically applied protect integrated circuits other components circuit board level. wide operating voltage energy range make Series suitable numerous applications power supply, control signal lines. Series manufactured from semiconducting ceramics, supplied leadless, surface mount package. Series compatible with modern reflow wave soldering procedures. operate over wider temperature range than zener diodes, much smaller footprint than plastic-housed components. Littelfuse Inc. manufactures other Multilayer Series products. Series data sheet applications, Series data sheet high-speed applications, multiline protection AUML Series automotive applications.
SURFACE MOUNT VARISTORS
Features
RoHS Compliant Leadless 0402, 0603, 0805, 1206 1210 Chip Sizes Multilayer Ceramic Construction Technology +125oC Operating Temperature Range Operating Voltage Range VM(DC) 5.5V 120V Rated Surge Current 20µs) Rated Energy 1000µs) Inherent Bi-directional Clamping Plastic Epoxy Packaging Assures Better than 94V-0 Flammability Rating Standard Capacitance Types Available
Size Metric
1005 1608 2012 3216 3225 4532 5650
0402 0603 0805 1206 1210 1812 2220
Applications
Suppression Inductive Switching Other Transient Events Such Surge Voltage Circuit Board Level Protection Components Sensitive 61000-4-2, MIL-STD-883C Method 3015.7, Other Industry Specifications (See Also Series) Provides On-Board Transient Voltage Protection Transistors Used Help Achieve Electromagnetic Compliance Products Replace Larger Surface Mount Zeners Many Applications
Multilayer Transient Voltage Surge Suppressors
Varistor Series
UNITS
%/OC
Absolute Maximum Ratings ratings individual members series, Device Ratings Specifications table.
Continuous: SERIES Steady State Applied Voltage: Voltage Range (VM(DC)) Voltage Range (VM(AC)RMS). Transient: Non-Repetitive Surge Current, 8/20µs Waveform, (ITM) Non-Repetitive Surge Energy, 10/1000µs Waveform, (WTM) 0.02 Operating Ambient Temperature Range (TA) Storage Temperature Range (TSTG) Temperature Coefficient Clamping Voltage (VC) Specified Test Current <0.01
Device Ratings Specifications
MAXIMUM RATINGS (125 MAXIMUM NONREPETITIVE SURGE CURRENT (8/20 MAXIMUM NONREPETITIVE SURGE ENERGY (10/1000 MAXIMUM CLAMPING VOLTAGE NOTED) (8/20 SPECIFICATIONS
MAXIMUM CONTINUOUS WORKING VOLTAGE
NOMINAL VOLTAGE TEST CURRENT VN(DC) VN(DC) 10.8 21.5 18.5 21.5 21.5 20.3 20.3 20.3
TYPICAL CAPACITANCE 1MHz
VM(DC) VM(AC) PART NUMBER V3.5MLA0603 V3.5MLA0805 V3.5MLA0805L V3.5MLA1206 V5.5MLA0402 V5.5MLA0402L V5.5MLA0603 V5.5MLA0603L V5.5MLA0805 V5.5MLA0805L V5.5MLA1206 V9MLA0402 V9MLA0402L V9MLA0603 V9MLA0603L4 V9MLA0805L V12MLA0805L V14MLA0402 V14MLA0603 V14MLA0805 V14MLA0805L V14MLA1206
I(A)
W(J) 0.050 0.050 0.050 0.020 0.050
17.5 17.5 17.5 17.5 17.5 25.5 25.5 25.5 34.5
15.9 15.9 15.9 15.9 15.9 15.9
(pF) 1270 2530 1380 6000 1840 3500 1400
Multilayer Transient Voltage Surge Suppressors
Varistor Series
(Continued)
MAXIMUM RATINGS (125 MAXIMUM NONREPETITIVE SURGE CURRENT (8/20 MAXIMUM NONREPETITIVE SURGE ENERGY (10/1000 MAXIMUM CLAMPING VOLTAGE NOTED) (8/20 SPECIFICATIONS
Device Ratings Specifications
MAXIMUM CONTINUOUS WORKING VOLTAGE
NOMINAL VOLTAGE TEST CURRENT VN(DC) VN(DC) 28.0 28.0 28.0 28.0 28.0 28.0 38.5 38.5 38.5 38.5 66.5 66.5
TYPICAL CAPACITANCE 1MHz
VM(DC) VM(AC) PART NUMBER V18MLA0402 V18MLA0603 V18MLA0805 V18MLA0805L V18MLA1206 V18MLA1210 V26MLA0603 V26MLA0805 V26MLA0805L V26MLA1206 V26MLA1210 V30MLA0603 V30MLA0805L V30MLA1210 V30MLA1210L V33MLA1206 V42MLA1206 V48MLA1210 V48MLA1210L V56MLA1206 V60MLA1210 V68MLA1206 V85MLA1210 V120MLA1210
I(A)
W(J) 0.050
2.5A 2.5A 2.5A 2.5A 2.5A 2.5A 2.5A 2.5A 2.5A
29.5 29.5 29.5 29.5 54.5 54.5
(pF) 1270 1440 1040 1820 1760
SURFACE MOUNT VARISTORS
NOTES: suffix capacitance energy version; Contact your Littelfuse Sales Representative custom capacitance requirements. Typical leakage C<25µA, maximum leakage 100µA VM(DC) 0402 size, typical leakage <5µA, maximum leakage <20µA VM(DC). Average power dissipation transients 0402, 0603, 0805, 1206 1210 sizes exceed 0.03W, 0.05W, 0.1W, 0.1W 0.15W respectively. Only available packing option.
Multilayer Transient Voltage Surge Suppressors
Varistor Series
PERCENT PEAKVALUE
Temperature De-rating
When transients occur rapid succession, average power dissipation energy (watt-seconds) pulse times number pulses second. power developed must within specifications shown Device Ratings Specifications table specific device. applications exceeding 125oC ambient temperature, peak surge current energy ratings must derated shown Figure
PERCENT RATED VALUE
TIME
FIGURE PEAK PULSE CURRENT TEST WAVEFORM CLAMPING VOLTAGE
VIRTUAL ORIGIN WAVE TIME FROM PEAK VIRTUAL FRONT TIME 1.25 VIRTUAL TIME HALF VALUE (IMPULSE DURATION) EXAMPLE: 8/20µs CURRENT WAVEFORM VIRTUAL FRONT TIME 20µs VIRTUAL TIME HALF VALUE
AMBIENT TEMPERATURE
FIGURE PEAK CURRENT ENERGY DERATING CURVE
MLA0402 Limit Curves
Varistor Voltage
V18MLA0402 V14MLA0402 V9MLA0402 V5.5MLA0402
0.000001
0.00001
0.0001
0.001
0.01 Current
FIGURE LIMIT CHARACTERISTIC V5.5MLA0402 V18MLA0402
Multilayer Transient Voltage Surge Suppressors
Varistor Series
MLA0402L Limit Curves
Maximum Transient Characteristic Curves
Varistor Voltage
V9MLA0402L V5.5MLA0402L
SURFACE MOUNT VARISTORS
0.000001 0.00001
0.0001
0.001
0.01 Current
FIGURE LIMIT CHARACTERISTIC V9MLA0402L
1000
V30MLA0603 V26MLA0603 V18MLA0603 Varistor Voltage
V14MLA0603
V9MLA0603 V5.5MLA0603 V3.5MLA0603
0.00001
0.0001
0.001
0.01 Current
FIGURE LIMIT CHARACTERISTIC V3.5MLA0603 V30MLA0603
1000
V30MLA0805L V26MLA0805L V18MLA0805L
Varistor Voltage
V14MLA0805L
V12MLA0805L V9MLA0805L V5.5MLA0805L V3.5MLA0805L
0.00001
0.0001
0.001
0.01 Current
FIGURE LIMIT CHARACTERISTIC V3.5MLA0805L V30MLA0805L
Multilayer Transient Voltage Surge Suppressors
Varistor Series
1000
Maximum Transient Characteristic Curves (Continued)
Varistor Voltage
V26MLA0805 V18MLA0805 V14MLA0805 V5.5MLA0805 V3.5MLA0805
0.00001
0.0001
0.001
0.01
1000
Current FIGURE LIMIT CHARACTERISTIC V3.5MLA0805 V26MLA0805
1000
Varistor Voltage
V68MLA1206 V56MLA1206 V42MLA1206 V33MLA1206 V26MLA1206 V18MLA1206 V14MLA1206 V5.5MLA1206 V3.5MLA1206
0.00001
0.0001
0.001
0.01
Current
1000
FIGURE LIMIT CHARACTERISTIC V3.5MLA1206 V68MLA1206
1000 MAXIMUM CLAMPING VOLTAGE MAXIMUM LEAKAGE
V120MLA1210 Varistor Voltage V85MLA1210 V60MLA1210 V48MLA1210, V48MLA1210L V30MLA1210, V30MLA1210L V26MLA1210 V18MLA1210 10µA 100µA 10mA CURRENT 100mA 100A 1000A
FIGURE LIMIT CHARACTERISTIC V18MLA1210 V120MLA1210
Multilayer Transient Voltage Surge Suppressors
Varistor Series
CLAMPING VOLTAGE
Device Characteristics
current levels, curve multilayer transient voltage suppressor approaches linear (ohmic) relationship shows temperature dependent effect (Figure 10). below maximum working voltage, suppressor high resistance mode (approaching maximum rated working voltage). Leakage currents maximum rated voltage below 50µA, typically 25µA; 0402 size below 10µA, typically 5µA.
100% SUPPRESSOR VOLTAGE PERCENT
V26MLA1206
V5.5MLA1206
VNOM VALUE
TEMPERATURE
FIGURE CLAMPING VOLTAGE OVER TEMPERATURE 10A)
100o 125oC
Energy Absorption/Peak Current Capability
Energy dissipated within calculated multiplying clamping voltage, transient current transient duration. important advantage multilayer interdigitated electrode construction within mass dielectric material. This results excellent current distribution peak temperature energy absorbed very low. matrix semiconducting grains combine absorb distribute transient energy (heat) (Figure 11). This dramatically reduces peak temperature; thermal stresses enhances device reliability. measure device capability energy peak current handling, V26MLA1206A part tested with multiple pulses peak current rating (150A, 8/20µs). test, 10,000 pulses later, device voltage characteristics still well within specification (Figure 13).
SUPPRESSOR CURRENT (ADC)
FIGURE TYPICAL TEMPERATURE DEPENDANCE CHARACTERISTIC CURVE LEAKAGE REGION
Speed Response
Multilayer Suppressor leadless device. response time limited parasitic lead inductances found other surface mount packages. response time Zinc Oxide dielectric material less than nanosecond clamp very fast dV/dT events such ESD. Additionally, "real world" applications, associated circuit wiring often greatest factor effecting speed response. Therefore, transient suppressor placement within circuit considered important certain instances.
FIRED CERAMIC DIELECTRIC
PEAK CURRENT 150A 8/20µs DURA TION, BETWEEN PULSES
METAL ELECTRODES METAL TERMINATION
VOLTAGE
V26MLA1206
2000 4000 6000 NUMBER PULSES
DEPLETION REGION
8000
10000
12000
FIGURE
REPETITIVE PULSE CAPABILITY
DEPLETION REGION GRAINS
FIGURE MULTILA INTERNAL CONSTRUCTION
SURFACE MOUNT VARISTORS
Multilayer Transient Voltage Surge Suppressors
Varistor Series
Soldering Recommendations
Lead (Pb) Soldering Recommendations
principal techniques used soldering components surface mount technology Re-flow Wave soldering. Typical profiles shown Figures recommended solder suppressor 62/36/2 (Sn/Pb/Ag), 60/40 (Sn/Pb) 63/37 (Sn/Pb). Littelfuse also recommends solder flux. Wave soldering most strenuous processes. avoid possibility generating stresses thermal shock, preheat stage soldering process recommended, peak temperature solder process should rigidly controlled. When using reflow process, care should taken ensure that chip subjected thermal gradient steeper than degrees second; ideal gradient being degrees second. During soldering process, preheating within degrees peak temperature essential minimize thermal shock.
TEMPERATURE
FIGURE REFLOW SOLDER PROFILE
MAXIMUM WAVE
Once soldering process been completed, still necessary ensure that further thermal shocks avoided. possible cause thermal shock printed circuit boards being removed from solder process subjected cleaning solvents room temperature. boards must allowed cool gradually less than 50°C before cleaning.
SECOND PREHEAT FIRST PREHEAT
TIME (MINUTES)
FIGURE WAVE SOLDER PROFILE
Lead-Free (Pb-free) Soldering Recommendations
Littelfuse offers Nickel-Barrier termination finish optimum Pbfree solder performance. preferred solder 96.5/3.0/0.5 (SnAgCu) with flux, there wide selection pastes fluxes available with which nickel barrier parts should compatible. reflow profile must constrained maximums shown Figure16. Pb-free Wave soldering, Figure still applies.
PREHEAT ZONE
MAXIMUM TEMPERATURE 260°C SECONDS WITHIN RAMP RATE <3°C/s
217°C
Note: Pb-free paste, flux profile were used evaluation purposes Littelfuse, based upon industry standards practices. There multiple choices three available, advised that customer explores optimum combination their process processes vary considerably from site site.
FIGURE LEAD-FREE RE-FLOW SOLDER PROFILE
Multilayer Transient Voltage Surge Suppressors
Varistor Series
Recommended Outline
NOTE
SURFACE MOUNT VARISTORS
NOTE: Avoid metal runs this area. Parts recommended applications using silver epoxy paste.
TABLE LAYOUT DIMENSIONS SIZE 1210 SIZE DEVICE DIMENSION 0.160 0.100 0.040 4.06 2.54 1.02 1206 SIZE DEVICE 0.160 0.065 0.040 4.06 1.65 1.02 0805 SIZE DEVICE 0.120 0.050 0.040 3.05 1.27 1.02 0603 SIZE DEVICE 0.100 0.030 0.035 2.54 0.76 0.89 0402 SIZE DEVICE 0.067 0.020 0.024 1.70 0.51 0.61
Multilayer Transient Voltage Surge Suppressors
Varistor Series
Mechanical Dimensions
CHIP SIZE 1210 DIMENSION Max. 0.113 0.02 ±0.01 0.125 ±0.012 0.10 ±0.012 2.87 0.50 ±0.25 3.20 ±0.30 2.54 ±0.30 0.071 0.02 ±0.01 0.125 ±0.012 0.06 ±0.011 1206 1.80 0.50 ±0.25 3.20 ±0.30 1.60 ±0.28 0.043 0.02 0.01 0.079 ±0.008 0.049 ±0.008 0805 1.10 0.50 0.25 2.01 ±0.20 1.25 ±0.20 0.035 0.015 ±0.008 0.063 ±0.006 0.032 ±0.06 0603 0.90 ±0.2 ±0.15 ±0.15 0.024 0.010 ±0.006 0.039 ±0.004 0.020 ±0.004 0402 0.90 0.25 ±0.15 ±0.1 ±0.1
Ordering Information
VXXML TYPES
1206
DEVICE FAMILY Littelfuse TVSS Device MAXIMUM WORKING VOLTAGE MULTILAYER SERIES DESIGNATOR
PACKING OPTIONS 13in (330mm) Diameter Reel, Plastic Carrier Tape (178mm) Diameter Reel, Plastic Carrier Tape (178mm) Diameter Reel, Plastic Carrier Tape
TERMINATION OPTION
Nickel Barrier (Ni/Sn)
DEVICE SIZE: (3MM 1.5MM)
CAPACITANCE OPTION Letter: Standard Capacitance Version
Standard Shipping Quantities
DEVICE SIZE 1210* 1206 0805 0603 0402 "13" INCH REEL ("T"OPTION) 8,000 10,000 10,000 10,000 "7"INCH REEL ("H"OPTION) 2,000 2,500 2,500 2,500 INCH REEL ('R' OPTION) 4,000 10,000 BULK PACK ("A"OPTION) 2500 2500 2500 2500
*NOTE: V120MLA1210 standard shipping quatities 1000 pieces reel option 4000 pieces reel option.
Multilayer Transient Voltage Surge Suppressors
Varistor Series
Tape Reel Specifications
Conforms 481-1, Revision supplied Publication
SYMBOL Width Cavity Length Cavity Depth Cavity Width Tape Distance Between Drive Hole Centers Cavity Centers Distance Between Drive Hole Centers Tape Edge Distance Between Cavity Centers Axial Drive Distance Between Drive Hole Centers Cavity Centers Axial Drive Distance Between Drive Hole Centers Drive Hole Diameter Diameter Cavity Piercing Tape Thickness
2±0.05
DESCRIPTION
DIMENSIONS MILLIMETERS
0402 Size 0603, 0805, 1206 1210 Sizes
Dependent Chip Size Minimize Rotation. Dependent Chip Size Minimize Rotation. Dependent Chip Size Minimize Rotation. ±0.2 ±0.05 1.75 ±0.1 ±0.1 ±0.1 ±0.1 1.55 ±0.05 1.05 ±0.05
SURFACE MOUNT VARISTORS
Pack Options: PLASTIC CARRIER TAPE Pack Options: EMBOSSED PAPER CARRIER TAPE
PRODUCT IDENTIFYING LABEL
EMBOSSMENT TAPE
NOMINAL
178mm 330mm DIA. REEL
Other recent searches
TYNx08 - TYNx08 TYNx08 Datasheet
SCF5250EC - SCF5250EC SCF5250EC Datasheet
SCCU001 - SCCU001 SCCU001 Datasheet
ROS-622-119+ - ROS-622-119+ ROS-622-119+ Datasheet
MAX3785 - MAX3785 MAX3785 Datasheet
GP30AH - GP30AH GP30AH Datasheet
GP30MH - GP30MH GP30MH Datasheet
DS04-28500-5E - DS04-28500-5E DS04-28500-5E Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
