varistor products ?2010 littelfuse, inc. revision: november 18, 2010 fbmov varistor series industrial high energy terminal varistors > fbmov series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/ba or /bb.html for current information. hiCenergy movs fbmov series 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 the mov has been disconnected. fbmov series devices offer quick thermal response due to the close proximity of the integrated fusing thermal element to the mov body. the integrated con?guration also offers lower inductance than most discreet solutions resulting in improved clamping performance to fast over- voltage transients. features t rohs compliant and leadCfree available t patent on integrated thermal protection + non fragmenting device. t designed to facilitate compliance to ul1449 for spd product: t ul 1449 short circuit current rating test section 39.2. t ul1449 intermediate current test section 39.3. t ul 1449 limited current abnormal over voltage test section 39.4. t will open circuit without rupture under 100a, 500a, 1,000a, 25,000a and 200,000a test conditions. t peak current rating to 40 ka. t -55c to +85c operating temperature. agency approvals absolute maximum ratings t ' p s s b u j o h t p g j o e j w j e v b m n f n c f s t p g b t f s j f t
t f f % f w j d f 3 b u j o h t b o e 4 q f d j m d b u j p o t d i b s u agency agency file number e320116 continuous: fbmov series units steady state applied voltage: dc voltage range (v m(dc) ) 150 to 970 v ac voltage range (v m(ac)rms ) 115 to 750 v transient: non-repetitive surge current, 8/20 s waveform (i tm ) 40,000 a non-repetitive energy capability, 2ms waveform (w tm ) 340 to 1340 j operating ambient temperature range (t a ) -55 to +85 o c storage temperature range (t stg ) -55 to +125 o c temperature coef?cient (a v ) of clamping voltage (v c ) at speci?ed test current <0.01 %/ o c hi-pot encapsulation (isolation voltage capability) 2500 v coating insulation resistance >1000 m rohs applications t type 1 spd (surge protection device) products t power supplies t transformer t residential service panel t power distribution t telecommunication t it/data center
varistor products ?2010 littelfuse, inc. revision: november 18, 2010 fbmov varistor series industrial high energy terminal varistors > fbmov series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/ba or /bb.html for current information. for applications exceeding 85 c, ambient temperatures, the peak surge current and energy rating must be reduces as shown in figure 1. peak current, energy and power de-rating curve 100 90 80 70 60 50 40 30 20 10 0 -55 50 60 70 80 90 100 110 120 130 140 150 ambient temperature ( o c) percent of rated value 100 90 50 10 o 1 t t 1 t 2 time percent of peak value peak pulse current test waveform 0 1 = virtual origin of wave t = time from 10% to 90% of peak t 1 = rise time = 1.25 x t t 2 = decay time example - for an 8/20 s current waveform: 8 s = t 1 = rise time 20 s = t 2 = decay time fbmov series ratings & speci?cations part number maximum rating (85c) speci?cations (25c) continuous transient varistor voltage at 1ma dc test current maximum clamping volt v c at 200a current (8/20 s) typical capaci- tance f = 1mhz ac volts dc volts energy (2ms) peak current 8 x 20 s v m(ac)rms v m(dc) w tm i tm min v n(dc) max v c c (v) (v) (j) (a) (v) (v) (v) (v) (pf) fbmov115m 115 150 340 4 0000 162 180 198 295 6400 fbmov130m 130 170 380 4 0000 184 205 226 335 5600 fbmov140m 140 180 420 4 0000 200 220 240 355 5000 fbmov150m 150 200 440 4 0000 216 240 264 390 4600 fbmov175m 175 225 500 4 0000 243 270 297 450 3800 fbmov230m 230 300 600 4 0000 324 360 396 585 3000 fbmov250m 250 320 660 4 0000 351 390 429 640 2800 fbmov275m 275 350 700 4 0000 387 430 473 700 2500 fbmov300m 300 385 740 4 0000 423 470 517 765 2300 fbmov320m 320 420 780 4 0000 459 510 561 825 2160 fbmov385m 385 505 860 4 0000 558 620 682 1010 1800 fbmov420m 420 560 920 4 0000 612 680 748 1100 1640 fbmov440m 440 585 940 4 0000 643 715 787 1160 1580 FBMOV460M 460 615 980 4 0000 675 750 825 1220 1500 fbmov510m 510 670 1040 4 0000 738 820 902 1335 1360 fbmov550m 550 745 1100 4 0000 819 910 1001 1475 1260 fbmov625m 625 825 1200 4 0000 900 1000 1100 1625 1110 fbmov750m 750 970 1340 4 0000 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 .
varistor products ?2010 littelfuse, inc. revision: november 18, 2010 fbmov varistor series industrial high energy terminal varistors > fbmov series speci?cations are subject to change without notice. please refer to www.littelfuse.com/series/ba or /bb.html for current information. hiCenergy movs fbmov series dimensions notes: typical weight: ba series:250g and bb series: 600g dimensions are in mm; inches in parentheses for reference only. part numbering system device family 11 5 v to 7 5 0v littelfuse t hermally protected mov + fuse vm (ac)rms series designator m: 3-leaded part fbmov 115 m v-i characteristic curves pulse rating curves 100 1000 10000 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1000 10000 100000 peak current (a) maximum peak voltage (v) 115 130 140 150 175 230 250 275 300 320 385 420 440 460 510 550 625 750 10 100 1000 10000 100000 10 100 1000 10000 impulse duration (s) s urge c urren t (a) 1 2 10 10 2 10 3 10 4 10 5 10 6 typical dimensions in milimeters [inches]
|
