V511DA40

Varistor Products Industrial High Energy Terminal Varistors > DA/DB Series RoHS DA/DB Varistor Series Description DA SERIES The DA and DB Series transient surge suppressors are heavy-duty industrial Metal-Oxide Varistors (MOVs) designed to provide surge protection for motor controls and power supplies used in oildrilling, mining, and transportation equipment. These UL recognized varistors have identical ratings and specifications but differ in case construction to provide flexibility in equipment designs. DA Series devices feature rigid terminals to ensure secure wire contacts. Both the DA and DB Series feature improved creep and strike distance capability to minimize breakdown along the package surface design that provides complete electrical isolation of the disc subassembly. See DA/DB Series Device Ratings and Specifications table for part number and brand information. Features • • RoHS compliant and Lead–free High energy absorption capability WTM up to 1050J Wide operating voltage range VM(AC)RMS 130V to 750V • • • Screw terminals (DA Series),quick connect push-on connectors (DB Series) Case design provides complete electrical isolation of disc subassembly 40mm diameter disc No derating up to 85ºC ambient DB SERIES Agency Approvals Agency Agency File Number E320116 • • Absolute Maximum Ratings • For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous Steady State Applied Voltage: AC Voltage Range (VM(AC)RMS) DC Voltage Range (VM(DC)) Transients: Peak Pulse Current (ITM) For 8/20μs Current Wave (See Figure 2) Single Pulse Energy Range For 2ms Current Squarewave (WTM) Operating Ambient Temperature Range (TA) Storage Temperature Range (TSTG) Temperature Coefficient (aV) of Clamping Voltage (VC) at Specified Test Current Hi-Pot Encapsulation (COATING Isolation Voltage Capability) (Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301) DA/DB Series 130 to 750 175 to 970 Units V V 40,000 270 to 1050 -55 to +85 -55 to +125 DA/DB Series DA/DB Series Ratings & Specifications Maximum Rating (85ºC) Continuous Part Number Device Branding VRMS VM(AC) DA V131DA40 V151DA40 V251DA40 V271DA40 V321DA40 V421DA40 V481DA40 V511DA40 V571DA40 V661DA40 V751DA40 DB V131DB40 V151DB40 V251DB40 V271DB40 V321DB40 V421DB40 V481DB40 V511DB40 V571DB40 V661DB40 V751DB40 (V) 130 150 250 275 320 420 480 510 575 660 750 VDC VM(DC) (V) 175 200 330 369 420 560 640 675 730 850 970 Transient Energy (2ms) WTM (J) 270 300 370 400 460 600 650 700 770 900 1050 Peak Current 8 x 20μs ITM (A) 400001 400002 40000 40000 40000 40000 40000 40000 40000 40000 40000 Varistor Voltage at 1mA DC Test Current Min (V) 184 212 354 389 462 610 670 735 805 940 1080 VNOM (V) 200 240 390 430 510 680 750 820 910 1050 1200 Max (V) 228 268 429 473 561 748 825 910 1000 1160 1320 Specifications (25ºC) Maximum Clamping Volt VC at 200A Current (8/20μs) VC (A) 345 405 650 730 830 1130 1240 1350 1480 1720 2000 Typical Capacitance f = 1MHz C (pF) 10000 8000 5000 4500 3800 3000 2700 2500 2200 2000 1800 Note : Average power dissipation of transients not to exceed 2.0W. Power Dissipation Ratings Peak Pulse Current Test Waveform PERCENT OF PEAK VALUE 100 100 90 PERCENT OF RATED VALUE 90 80 70 60 50 40 30 20 10 0 -55 50 60 70 80 90 100 110 120 130 140 15 50 10 O1 T T1 T2 TIME Figure 1 AMBIENT TEMPERATURE ( oC) Figure 2 NOTES: 1. Peak current Applies to applications rated up to 115VRMS. Peak current is 30kA for applications greater than 115V. 2. Peak current applies to applications rated up to 132VRMS. Peak Current is 30kA for applications greater than 132V. Should transients occur in rapid succession, the average power dissipation required is simply the energy (watt- seconds) per pulse times the number of pulses per second. The power so developed must be within the specifications shown on the Device Ratings and Specifications table for the specific device. Furthermore, the operating values need to be derated at high temperatures as shown above. Because varistors can only dissipate a relatively small amount of average power they are, therefore, not suitable for repetitive applications that involve substantial amounts of average power dissipation. 01 = Virtual Origin of Wave T = Time from 10% to 90% of Peak T1 = Rise Time = 1.25 x T T2 = Decay Time Example - For an 8/20 μs Current Waveform: 8μs = T1 = Rise Time 20μs = T2 = Decay Time DA/DB Varistor Series Revision: October 29, 2009 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/da or /db.html for current information. Varistor Products Industrial High Energy Terminal Varistors > DA/DB Series Maximum Clamping Voltage V131DA40 - V751DA40 and V131DB40 - V751DB40 6,000 5,000 4,000 TA = -55o C to 85 o C MAXIMUM CLAMPING VOLTAGE DISC SIZE 40mm V751DA/DB40 130 TO 750 VM(AC) RATING V661DA/DB40 V571DA/DB40 V511DA/DB40 V481DA/DB40 V421DA/DB40 Repetitive Surge Capability V131DA40 - V751DA40 and V131DB40 - V751DB40 50,000 20,000 10,000 1 DISC SIZE 40mm V131DA40 - V751DA40 V131DB40 - V751DB40 10 4 5 10 6 10 2 10 MAXIMUM PEAK VOLTS (V) 3,000 2,000 SURGE CURRENT (A) 5,000 2,000 1,000 500 200 100 50 20 10 2 10 3 1,000 900 800 700 600 500 400 300 V151DA/DB40 V131DA/DB40 200 10 -1 10 0 10 -2 V321DA/DB40 V271DA/DB40 V251DA/DB40 10 1 10 2 PEAK AMPERES (A) 10 3 10 4 10 5 INDEFINITE 20 100 1,000 IMPULSE DURATION ( μs) 10,000 10 Figure 3 Figure 4 NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than +/-10% could result. This type of shift, which normally results in a decrease of VN(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. Physical Specifications DA - Copper, Tin–plated DB - Brass, Tin–plated Cured, flame retardant epoxy polymer meets UL94V–0 requirements. Marked with LF part number and date , code Environmental Specifications Operating/Storage Temperature Humidity Aging -55°C to +85°C/ -55°C to +125°C +85°C, 85% RH, 1000 hours +/- 5% typical resistance change +85°C to -40°C 10 times +/- 5% typical resistance change MIL–STD–202, Method 215F Level 1, J–STD–020C Lead Material Insulating Material Device Labeling Thermal Shock Solvent Resistance Moisture Sensitivity ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/da or /db.html for current information. Revision: October 29, 2009 DA/DB Varistor Series HI–ENERGY MOV’S DA/DB Series Varistor Products Industrial High Energy Terminal Varistors > DA/DB Series Product Dimensions (mm) DA SERIES “A” DIMENSION: FILISTER HEAD SCREW - 51mm (2.01) PAN HEAD SCREW - 53mm (2.09) A 4.3mm (0.170) 15mm (0.59) 46.8 (1.84) 23mm 1mm (0.90 0.04) M4 INTERNATIONAL THREAD HOLES 0.23 THRU BORE 0.370 x 0.370 DP 1.6 (0.06) 57mm (2.24) 23 (0.90) 62mm (2.44) 40.5 (1.6) 12.7 (0.50) 2 HOLES 6.60 (0.26) 41 (1.61) 25.4 (1.00 0.75 0.03) 60.3 (2.37) 44.45 0.75 (1.75 0.03) DB SERIES ALL DIMENSIONS ARE MAXIMUM EXCEPT WHERE NOTED 12.7 (0.50) 6.60 (0.26) 67mm (2.64) 4.5mm (0.18) Dimensions in millimeters and (inches). Part Numbering System V XX X DA 40 VARISTOR DISC SIZE (60mm) SERIES DESIGNATOR DA or DB VM(AC) First Two Significant Digits* VM(AC) Decade Multiplier* *Refer to Rating & Specifications table Example: 130 VM(AC) = 131 DA/DB Varistor Series Revision: October 29, 2009 ©2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/da or /db.html for current information.