Metal-Oxide Varistors (MOVs) Radial Lead Varistors > UltraMOVTM 25S Varistor Series UltraMOV® 25S Varistor Series RoHS Description The UltraMOV® 25S Varistor Series is designed for applications requiring high peak surge current ratings and high energy absorption capability. UltraMOV™ varistors are primarily intended for use in AC Line Voltage applications such as Surge Protective Devices (SPD), Uninterruptable Power Supplies (UPS), AC Power Taps, AC Power Meters, or other products that require voltage clamping of high transient surge currents from sources such as lightning, inductive load switching, or capacitor bank switching. These devices have 25mm square forms are produced in a radial lead package and offered with straight leads. Agency Approvals UltraMOV® 25S varistors are manufactured with recognized epoxy encapsulation and are rated for ambient Agency Agency Approval Agency File Number temperatures up to 85°C with no derating. This 25S Series is LASER-branded and is supplied in bulk packaging. UL1449 E320116 IEC 61051-1, IEC61051-2, IEC 60950-1 (Annex Q) 116895 Features • Lead–free and • Custom voltage RoHS compliant. types available Additional Information • High peak surge • Standard lead form current rating (I ) and lead space options TM 22kA, single 8/20µs pulse, (25mm) Datasheet Resources Samples • Standard operating voltage range compatible with common AC line voltages (115 to 750VAC) Absolute Maximum Ratings • For ratings of individual members of a series, see Device Ratings and Specifications chart Continuous UltraMOV® 25S Varistor Series Units Steady State Applied Voltage: AC Voltage Range (V ) 115 to 750 V M(AC)RMS DC Voltage Range (V ) 150 to 970 V M(DC) Transients: Peak Pulse Current (I ) 8x20µs Current Wave Single Pulse 22,000 A TM Single-Pulse Energy Capability (W ) 2ms Current Wave 230 to 890 J TM Operating Ambient Temperature Range (T) -55 to +85 ºC A Storage Temperature Range (T ) -55 to +125 ºC STG Temperature Coefficient (aV) of Clamping Voltage (V) at Specified Test Current <0.01 %/C C Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 2500 V Dielectic Withstand DC for 1 min per MIL–STD–202, Method 301 Insulation Resistance of the Epoxy Coating 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. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/17/19

Metal-Oxide Varistors (MOVs) Radial Lead Varistors > UltraMOVTM 25S Varistor Series Ratings & Specifications Maximum Rating (85°C) Specifications (25°C) Continuous Transient UL 1449 Varistor Voltage Maximum Clamping Typical Capaci- Peak Surge Voltage Energy at 1mA DC Voltage at 100A, tance AC Volts DC Volts Current Protection Part Number Branding 2ms Test Current 8 x 20µs f = 1MHz 8 x 20µs Rating W I V V V V TM TM NOM NOM V VPR C M(AC)RMS M(DC) 1 x Pulse 1 x Pulse Min Max C (V) (V) (J) (A) (V) (V) (pF) V25S115P P25S115 115 150 230 22000 162 198 295 400 4500 V25S130P P25S130 130 170 255 22000 184.5 225.5 335 500 3900 V25S140P P25S140 140 180 285 22000 198 242 355 500 3500 V25S150P P25S150 150 200 300 22000 216 264 390 500 3200 V25S175P P25S175 175 225 315 22000 243 297 450 600 2550 V25S230P P25S230 230 300 400 22000 324 396 585 700 1900 V25S250P P25S250 250 320 435 22000 351 429 640 800 1750 V25S275P P25S275 275 350 470 22000 387 473 700 900 1610 V25S300P P25S300 300 385 500 22000 423 517 765 1000 1450 V25S320P P25S320 320 420 540 22000 459 561 825 1000 1350 V25S385P P25S385 385 505 630 22000 558 682 1010 1200 1080 V25S420P P25S420 420 560 655 22000 612 748 1100 1500 1000 V25S440P P25S440 440 585 675 22000 643.5 786.5 1160 n/a 900 V25S460P P25S460 460 615 690 22000 675 825 1220 n/a 870 V25S510P P25S510 510 670 700 22000 738 902 1335 n/a 820 V25S550P P25S550 550 745 765 22000 819 1001 1475 n/a 750 V25S625P P25S625 625 825 800 22000 900 1100 1625 n/a 660 V25S750P P25S750 750 970 890 22000 1080 1320 1950 n/a 550 Note: Average powder dissipation of transients should not exceed 1.5 watts. Transient V-I Characteristics Curves Peak Current, Energy and Power Derating Curve Peak Pulse Current Test Waveform for Clamping Voltage 100 100 UE UE L L D VA 80 AK VA ATE 60 OF PE 50 F R NT O E T 40 RC N PE E C R 20 PE 0 t TIME 0 Figure 2O1 t1 t2 55 50 60 70 80 90 100 110 120 130 AMBIENT TEMPERATURE (ºC) 0 = Virtual Origin of Wave Figure 1 1 T = Time from 10% to 90% of Peak T = Rise Time = 1.25 x T 1 For applications exceeding 85ºC ambient temperature, the T = Decay Time 2 peak surge current and energy ratings must be reduced as Example - For an 8/20 µs Current Waveform: shown above. 8µs = T = Rise Time 1 20µs = T = Decay Time 2 © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/17/19

Metal-Oxide Varistors (MOVs) Radial Lead Varistors > UltraMOVTM 25S Varistor Series Transient V-I Characteristic Curve 10000 750 625 550 age (V) 385 420 440 460 510 olt V k a e 1000 P m u m xi a M 320 300 275 250 150 175 230 140 130 115 100 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1000 10000 100000 Figure 3 Peak Current (A) Pulse Rating Curve 100000 1 2 10000 15 102 103 A) 1000 nt ( 104 Curre 110056 k a Pe 100 ∞ 10 1 10 100 1000 10000 Figure 4 Impulse Duration (µs) Note: Repetitive surge capability is qualified and tested based on 8/20us current waveform (not combination waveform) and UL1449 40.7.3 (Edition 4) test condition. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/17/19

Metal-Oxide Varistors (MOVs) Radial Lead Varistors > UltraMOVTM 25S Varistor Series Wave Solder Profile Non Lead–free Wave Solder Profile Lead–free Wave Solder Profile 300 300 Maximum Wave 260C Maximum Wave 240C 250 250 C) C) E (º 200 E (º 200 R R U U T T A 150 A 150 R R E E P P M 100 M 100 E E T T 50 50 0 0 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 2 2.5 3 3.5 4 Figure 5 TIME(MINUTES) Figure 6 TIME(MINUTES) Physical Specifications Environmental Specifications Lead Material Copper Clad Steel Wire Operating Temperature -55°C to +85°C Soldering Characteristics Solderability per MIL–STD–202, Method 208 Storage Temperature -55°C to +125°C Cured, flame retardant epoxy polymer meets +85°C, 85% RH, 1000 hours Insulating Material Humidity Aging UL94V–0 requirements +/-10% typical voltage change Marked with LF, voltage, UL/CSA Logos, and +85°C to -40°C 5 times Device Labeling Thermal Shock date code +/-10% typical voltage change Solvent Resistance MIL–STD–202, Method 215 Moisture Sensitivity Level 1, J-STD-020 UltraMOV® 25S Varistor Series for High-Temperature Operating Conditions: Phenolic coated devices are available with improved maximum operating temperature 125ºC. These devices also have improved temperature cycling capability. Ratings and specifications are per standard series except Hi–Pot Encapsulation (Isolation Voltage Capability) = 500V. To order: add 'X1347' to part number (e.g. V25S150PX1347). These devices are NOT UL, CSA, CECC or VDE certified.Contact factory for further details. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/17/19

Metal-Oxide Varistors (MOVs) Radial Lead Varistors > UltraMOVTM 25S Varistor Series Product Dimensions (mm) D A max b min b max D max e min e max e1 min e1 max E max L min V25S115P 1.5 2.7 5.7 V25S130P 1.6 2.9 5.9 V25S140P 1.7 3.0 6.0 V25S150P 1.8 3.1 6.1 A V25S175P 1.9 3.3 6.3 V25S230P 2.0 3.4 6.4 V25S250P 2.1 3.5 6.5 V25S275P 2.3 3.7 6.7 V25S300P 2.4 3.9 6.9 32.5 0.95 1.05 28 11.7 13.7 25.4 L V25S320P 2.6 4.1 7.1 V25S385P 3.0 4.7 7.7 V25S420P 3.3 5.0 8.0 b V25S440P 3.4 5.2 8.2 V25S460P 3.6 5.4 8.4 e V25S510P 1.6 3.4 8.7 V25S550P 1.9 3.9 9.2 e1 E V25S625P 2.3 4.3 9.6 V25S750P 3.1 5.4 10.7 Notes 1. Additional optional lead form, packaging and lead spacing requirements are subject to availability and to minimum order requirements. Please contact factory for details. 2. Nickel Barrier Wire option (Suffix 'X2855')Standard parts use Tin-Coated Copper wire. Nickel Barrier Coated Wire is available as an option. This is Copper Wire with a flashing of Nickel, followed by a top coat of Tin. To order please add suffix 'X2855' to end of standard part number. Contact factory for more details if required. 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. © 2019 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/17/19