Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > FBMOV Series RoHS FBMOV Varistor Series Description The Littelfuse FBMOV Series thermally protected and non-fragmenting varistor represents a new development in circuit protection. It consists of a 40kA varistor building block (MOV) with an integral thermally activated element designed to open in the event of overheating due to abnormal over-voltage, limited current conditions. FBMOV series devices also include a varistor series fuse which prevents the part from rupturing when subjected to high fault current (up to 200kA).The tubular fuse-like body allows for easy mechanical connection in the application. Another feature of FBMOV is an indicator lead, which may be connected to monitoring circuitry and used to signal if Applications the MOV has been disconnected. Type 1 SPD (Surge Protection Device) Products FBMOV series devices offer quick thermal response due to the close proximity of the integrated fusing thermal Power supplies element to the MOV body. The integrated configuration Transformer also offers lower inductance than most discreet solutions Residential Service Panel resulting in improved clamping performance to fast over- Power distribution voltage transients. Telecommunication IT/Data Center Features RoHS compliant and Leadfree Absolute Maximum Ratings Will open circuit without rupture during UL 1449 For ratings of individual members of a series, see Device Ratings and Specifications chart Intermediate Current Test of 100A, 500A and 1,000A, and Short Circuit Current Test of 200,000A FBMOV Continuous: Units Series Indicator Lead for monitoring MOV Steady State Applied Voltage: DC Voltage Range (V ) 150 to 970 V M(DC) AC Voltage Range (V ) 115 to 750 V M(AC)RMS Transient: Non-Repetitive Surge Current, 40,000 A 8/20s Waveform (I ) TM Non-Repetitive Energy Capability, 340 to 1340 J 2ms Waveform (W ) TM Operating Ambient Temperature Range O -55 to +85 C (T ) A O Storage Temperature Range (T ) -55 to +125 C STG V Temperature Coefficient (a ) of Clamping O <0.01 %/ C Voltage (V ) at Specified Test Current C Hi-Pot Encapsulation (Isolation Voltage 2500 V Capability) COATING Insulation Resistance >1000 M Additional Information Datasheet Resources Samples 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > FBMOV Series FBMOV Series Ratings & Specifications Maximum Rating (85C) Specifications (25C) Continuous Transient Maximum Typical Varistor Voltage at 1mA Clamping Volt Capaci- Part Peak Energy DC Test Current V at 200A tance f = Number AC Volts DC Volts Current C (2ms) Current (8/20s) 1MHz 8 x 20s V V W I Min V Max V C M(AC)RMS M(DC) TM TM N(DC) C (V) (V) (J) (A) (V) (V) (V) (V) (pF) FBMOV115M 115 150 340 40000 162 180 198 295 6400 FBMOV130M 130 170 380 40000 184.5 205 225.5 335 5600 FBMOV140M 140 180 420 40000 198 220 242 355 5000 FBMOV150M 150 200 440 40000 216 240 264 390 4600 FBMOV175M 175 225 500 40000 243 270 297 450 3800 FBMOV230M 230 300 600 40000 324 360 396 585 3000 FBMOV250M 250 320 660 40000 351 390 429 640 2800 FBMOV275M 275 350 700 40000 387 430 473 700 2500 FBMOV300M 300 385 740 40000 423 470 517 765 2300 FBMOV320M 320 420 780 40000 459 510 561 825 2160 FBMOV385M 385 505 860 40000 558 620 682 1010 1800 FBMOV420M 420 560 920 40000 612 680 748 1100 1640 FBMOV440M 440 585 940 40000 643.5 715 786.5 1160 1580 FBMOV460M 460 615 980 40000 675 750 825 1220 1500 FBMOV510M 510 670 1040 40000 738 820 902 1335 1360 FBMOV550M 550 745 1100 40000 819 910 1001 1475 1260 FBMOV625M 625 825 1200 40000 900 1000 1100 1625 1110 FBMOV750M 750 970 1340 40000 1080 1200 1320 1950 920 NOTE: Average power dissipation of transients not to exceed 2.5W. See Figures 3 and 4 for more information on power dissipation. Peak Current, Energy and Power De-rating Curve Peak Pulse Current Test Waveform 100 100 O = Virtual Origin of Wave 1 90 90 T = Time From 10% to 90% of Peak 80 T = Virtual Front Time = 1.25 t 1 70 T = Virtual Time to Half Value (Impulse Duration) 2 50 60 Example: For an 8/20 s Current Waveform: 50 8s = T = Virtual Front Time 1 40 20 s = T = Virtual Time to Half Value 2 30 10 20 10 O T 1 TIME 0 T 1 -55 50 60 70 80 90 100110 120130 140150 T 2 o AMBIENT TEMPERATURE ( C) FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM FIGURE 1. CURRENT, ENERGY AND POWER DERATING For applications exceeding 85 C, ambient temperatures, the peak 0 = Virtual Origin of Wave 1 CURVE surge current and energy rating must be reduces as shown in T = Time from 10% to 90% of Peak Figure 1. T = Rise Time = 1.25 x T 1 T = Decay Time 2 Example - For an 8/20 s Current Waveform: 8s = T = Rise Time 1 20s = T = Decay Time 2 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 PERCENT OF RATED VALUE PERCENT OF PEAK VALUE