Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > BA/BB Series BA/BB Varistor Series RoHS Description BB Series The BA and BB 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 oil-drilling, mining, transportation equipment and other heavy industrial AC line applications. These varistors have similar package construction but differ BA Series in size and ratings. The BA models are rated from 130 to 880V . The BB models from 1100 to 2800V . M(AC) M(AC) Both the BA and BB Series feature improved creep and Agency Approvals strike capability to minimize breakdown along the package surface, a package design that provides complete electrical Agency Agency Approval Agency File Number isolation of the disc subassembly, and rigid terminals to ensure secure wire contacts. UL1449 E320116 - for BA Series only. See BA/BB Series Device Ratings and Specifications Table for part number and brand information. Additional Information Features • High energy absorption • Case design provides capability W complete electrical TM BA Series 3200J isolation of disc subassembly Datasheet Resources Samples BB Series 10,000J BA BA BA • Littelfuse largest • Wide operating voltage packaged disc range V M(AC)RMS 60mm diameter BA Series 130V to 880V • No derating up to BB Series 1100V to 2800V 85ºC ambient DataBsBheet ResoBuBrces SamBpBles • Rigid terminals for • RoHS compliant secure wire contact Absolute Maximum Ratings • For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous BA Series BB Series Units Steady State Applied Voltage: AC Voltage Range (V ) 130 to 880 1100 to 2800 V M(AC)RMS DC Voltage Range (V ) 175 to 1150 1400 to 3500 V M(DC) Transients: Peak Pulse Current (I ) TM For 8/20µs Current Wave (See Figure 2) 50,000 to 70,000 70,000 A Single Pulse Energy Range For 2ms Current Squarewave (W ) 450 to 3200 3800 to 10000 J TM Operating Ambient Temperature Range (T ) -55 to +85 -55 to +85 OC A Storage Temperature Range (T ) -55 to +125 -55 to +125 OC STG Temperature Coefficient (aV) of Clamping Voltage (V ) at Specified Test Current <0.01 <0.01 %/OC C Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 5000 5000 V (Dielectric must withstand indicated DC voltage for one minute per MIL–STD–202, Method 301) COATING Insulation Resistance 1000 1000 MΩ CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17

Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > BA/BB Series BA/BB Series Ratings & Specifications Maximum Rating (85°C) Specifications (25°C) Continuous Transient Maximum Typical Part Peak Varistor Voltage at 1mA Clamping Volt Capaci- Number VRMS VDC E(n2emrgs)y 8C ux r2re0nµst DC Test Current CuVrrCe natt 2(80/02A0µ s) ta1nMceH fz = V V W I Min V Max V C M(AC) M(DC) TM TM N(DC) C (V) (V) (J) (A) (V) (V) (V) (V) (pF) BA Series V131BA60 130 175 450 50000 184.5 205 225.5 340 20000 V151BA60 150 200 530 50000 216 240 264 400 16000 V251BA60 250 330 880 50000 351 390 429 620 10000 V271BA60 275 369 950 50000 387 430 473 680 9000 V321BA60 320 420 1100 50000 459 510 561 760 7500 V421BA60 420 560 1500 70000 612 680 748 1060 6000 V481BA60 480 640 1600 70000 675 750 825 1160 5500 V511BA60 510 675 1800 70000 738 820 902 1300 5000 V571BA60 575 730 2100 70000 819 910 1001 1420 4500 V661BA60 660 850 2300 70000 945 1050 1155 1640 4000 V751BA60 750 970 2600 70000 1080 1200 1320 1880 3500 V881BA60 880 1150 3200 70000 1350 1500 1650 2340 2700 BB Series V112BB60 1100 1400 3800 70000 1665 1850 2035 2940 2200 V142BB60 1400 1750 5000 70000 2070 2300 2530 3600 1800 V172BB60 1700 2150 6000 70000 2500 2765 3030 4300 1500 V202BB60 2000 2500 7500 70000 2970 3300 3630 5200 1200 V242BB60 2400 3000 8600 70000 3510 3900 4290 6200 1000 V282BB60 2800 3500 10000 70000 4230 4700 5170 7400 800 NOTE: Average power dissipation of transients not to exceed 2.5W. See Figures 3 and 4 for more information on power dissipation. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17

Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > BA/BB Series Power Dissipation Ratings Peak Pulse Current Test Waveform E100 100 U UE 90 VAL 90 OT1 == TViimrtuea Fl rOormig i1n0 o%f Wtoa 9v0e% of Peak AL 80 K D V 70 EA T1 = Virtual Front Time = 1.25 • t ATE 60 F P 50 T2 = Virtual Time to Half Value (Impulse Duration) CENT OF R 543000 RCENT O E20x8amss =p=l TeT:21 F==o VVr iirarttnuu aa8ll / 2TF0irmonest CtToui mHrraeelnf tV Walauveeform: PER 20 PE 10 10 O1 T TIME 0 T1 Figure 1-55 50 60 7A0MBIE80NT TE90MPE1R0A0TU1R1E0 (o1C2)0 130 140 150 Figure 2 T2 FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM FIGURE 1. CURRENT, ENERGY AND POWER DERATING Should transients CoUcRcVuEr in rapid succession, the average power 0 = Virtual Origin of Wave 1 dissipation required is simply the energy (watt-seconds) per pulse T = Time from 10% to 90% of Peak times the number of pulses per second. The power so developed T = Rise Time = 1.25 x T 1 must be within the specifications shown on the Device Ratings T = Decay Time and Characteristics Table for the specific device. Furthermore, 2 Example - For an 8/20 µs Current Waveform: the operating values need to be derated at high temperatures as 8µs = T = Rise Time shown in the above diagram. Because varistors can only dissipate 1 20µs = T = Decay Time a relatively small amount of average power they are, therefore, not 2 suitable for repetitive applications that involve substantial amounts of average power dissipation. Stand by Power Dissipation vs Applied V at Varied Typical Stability of Standby Power Dissipation at Rated Rms Temperatures V vs Time RMS TYPICAL TEMPERATURE COEFFICIENT OF POWER DISSIPATION = 2.2%/oC 1,000 HOURS, TA = 85oC 1.0 0.8 MAX AT TA = 85oC 0.5 R kV 0.6 kV R DISSIPATION (W) PEOF RATED VRMS0000.0...4218 TMYAPX A ATT T TAA = = 2 255ooCC DISSIPATION (W) PER OF RATED VRMS 000...432 E R W 0.06 E 0.1 O W P O 0.04 P 80 90 100 110 0 PERCENTAGE OF MAXIMUM RATED VRMS (%) 0 10 100 1,000 Figure 3 Figure 4 TIME AT RATED VRMS (HOURS) FIGURE 3. STANDBY POWER DISSIPATION vs APPLIED FIGURE 4. TYPICAL STABILITY OF STANDBY POWER VRMS AT VARIED TEMPERATURES DISSIPATION AT RATED VRMS vs TIME © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17

Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > BA/BB Series Maximum Clamping Voltage BA Series Maximum Clamping Voltage BB Series V131BA60 - V881BA60 V112BB60 - V282BB60 65,,000000 MDIASXC CSLIZAEM 6P0ImNGm VOLTAGE V511BA60 30,000 MDIASXC CSLIZAEM 6P0ImNGm VOLTAGE V)43,,000000 1T3A0 = T -O5 58o8C0 VTOM( 8A5Co) CRATING V4V8412B1ABA6060 20,000 1T1A0 =0 -T5O5 o2C8 0T0OV 8M5(oACC) RATING EAK VOLTS (21,,000000VVVV876585671111BBBBAAAA66660000 K VOLTS (V)10987,,,,000000000000 MAXIMUM P 987654000000000000VVV322275111BBBAAA666000 MAX PEA 6543,,,,000000000000VVVV222178402222BBBBBBBB66660000 V142BB60 300V151BA60 V112BB60 V131BA60 20010-2 10-1 100 101 102 103 104 105 2,00100-2 10-1 100 101 102 103 104 105 PEAK AMPERES (A) Figure 5 PEAK AMPERES (A) Figure 6 FIGURE 5. CLAMPING VOLTAGE FOR V131BA60 - V881BA60 FIGURE 6. CLAMPING VOLTAGE FOR V112BB60 - V282BB60 Repetitive Surge Capability BA Series Repetitive Surge Capability BB Series V131BA60 - V321BA60 V421BA60 - V282BB60 50,000 1 DISC SIZE 60mm 10500,,000000 1 DV4IS2C1B SAIZ60E -6 V02m8m2BB60 2100,,000000 10 2 V131BA60 - V321BA60 20,000 10 2 10,000 SURGE CURRENT (A) 521,,,000521000000000000 101111600004352 SURGE CURRENT (A) 521,,,000521000000000000 111110000042356 50 50 20 INDEFINITE 20 INDEFINITE 10 10 20 100 1,000 10,000 20 100 1,000 10,000 Figure 7 IMPULSE DURATION (μs) Figure 8 IMPULSE DURATION (μs) FIGURE 7. SURGE CURRENT RATING CURVES FOR FIGURE 8. SURGE CURRENT RATING CURVES FOR NOTE: If pulse ratings areV e1x3c1eBedAe6d0, a- Vsh3if2t 1oBf VA6(D0C) (at specified current) of more than +/-10% could result.This type of shVift4, 2w1hBicAh6 n0o r-m Va2ll8y2 rBesBu6lt0s in a decrease of V(DC), may result in N N 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 Environmental Specifications Lead Material BA / BB – Copper with Tin Plating Operating Temperature -55°C to +85°C Cured, flame retardant epoxy polymer Storage Temperature -55°C to +125°C Insulating Material meets UL94V–0 requirements. +85°C, 85% RH, 1000 hours Device Labeling Marked with LF, Part Number and Date Humidity Aging +/- 5% typical resistance change code +85°C to -40°C 10 times Thermal Shock +/- 5% typical resistance change Solvent Resistance MIL–STD–202, Method 215 Moisture Sensitivity Level 1, J-STD-020 © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17

BA Series M6 INTERNATIONAL THREAD PAN HEAD SLOTTED SCREW 40.0 (1.575) 7.0 23.5 (0.28) (0.925) 86.0 (3.38) 100 (3.94) Metal-Oxide VarBiBs Steorierss (MOMV6 INsTE)RNATIONAL THREAD PAN HEAD SLOTTED SCREW 40.0 (1.575) Industrial High Energy Terminal Varistors > BA/BB Series 10.5 (0.41) 7.0 44.5 (0.28) (1.752) 10.5 (0.41) 86.0 (3.38) Dimensions 100 (3.94) BA Series 40±2 M6 INTERNATIONAL THREAD (1.575 ± 0.08) M6 INTERNATIONAL 40.0 (1.575) PAN HEAD SLOTTED SCREW THREAD 7.0 23.5 (0.28) (0.925) 95 (3.74) 86.0 (3.38) MAX 100 (3.94) 79±3 (3.11±0.12) BB Series M6 INTERNATIONAL THREAD PAN HEAD SLOTTED SCREW 40.0 (1.575) 6 (0.24) 86±2 (010.4.51) (3.38±0.08) 100 (3.94) 7.0 44.5 (0.28) (1.752) Notes: Typical weight: BA Series:250g and BB Series: 600g 10.5 (0.41) Dimensions are in mm; inches in parentheses for reference only. 86.0 (3.38) 100 (3.94) Part Numbering System (1.57450 ±± 20.08) M6 INTERNATIONAL THREAD V XX X BA 60 VARISTOR DISC SIZE (60mm) 95 (3.74) VVV MAX MMM(((AAACCC))) SERIES DESIGNATOR 79±3 First Tw o Significant Digits* BA or BB (3.11±0.12) V M(AC) Decade Multiplier* (1 or 2) 6 (0.24) *Refer to Rating & Specifications table 86±2 Examples: (3.38±0.08) 130 VM(AC) = 131 100 (3.94) 2800 VM(AC) = 282 Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics. © 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17