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56 www.littelfuse.com varistor products la varistor series line voltage operation, radial lead the la series of transient voltage surge suppressors are radial-lead varistors (movs) that are designed to be operated continuously across ac power lines. these ul recognized varistors require very little mounting space, and are offered in various standard lead form options. the la series varistors are available in four model sizes: 7mm, 10mm, 14mm and 20mm; and have a v m(ac)rms voltage range from 130v to 1000v, and an energy absorption capability up to 360j. some la series model numbers are available with clamping voltage selections, designated by a model number suffix of either a or b. the ? selection is the standard model; the ? selection provides a lower clamping voltage. see la series device ratings and specifications table for part number and brand information. features ?lead-free and rohs compliant option available. please see the device and ratings specifications table for more information. energy absorption capability (w tm ) ....................up to 360j ?wide operating voltage range v m(ac)rms ..................................... 130v to 1000v ?no derating up to 85 o c ambient ?available in tape and reel or bulk pack agency approvals: standard and lead-free parts recognized under the components program of underwriters laboratories. certified by csa, vde and cecc. agency file numbers: ul e75961, e56529 (lead-free pending), e135010 (lead-free pending); csa lr91788; vde 116895e; cecc 42201-006. also see littelfuse ultramov and c-iii varistor series v de pb rohs new lead-free and rohs compliant parts available
57 www.littelfuse.com 2 varistor products varistor products la varistor series line voltage operation, radial lead 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 (v m(ac)rms ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 to 1000 v dc voltage range (v m(dc) ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 to 1200 v transients: peak pulse current (i tm ) for 8/20? current wave (see figure 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200 to 6500 a single pulse energy range for 10/1000? current wave (w tm ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 to 360 j operating ambient temperature range (t a ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 85 0 c storage temperature range (t stg ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to 125 0 c temperature coefficient ( v) of clamping voltage (v c ) at specified test current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <0.01 %/ 0 c hi-pot encapsulation (isolation voltage capability) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500 v (dielectric must withstand indicated dc voltage for one minute per mil-std 202, method 301) insulation resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 m ? caution: stresses above those listed in ?bsolute 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. device ratings and specifications la series units pa rt number maximum rating (85 o c) specifications (25 o c) continuous transient varistor volt- age at 1ma dc test current maximum clamping voltage 8 x 20 s typical capaci- tance f = 1mhz v rms v dc energy 10 x 1000 s peak current 8 x 20 s v m(ac) v m(dc) w tm i tm v nom min v nom max v c i pk c (v) (v) (j) (a) (v) (v) (a) (pf) v130la1 1301 130 175 11 1200 184 255 390 10 180 v130la2 1302 130 175 11 1200 184 228 340 10 180 v130la5 1305 130 175 20 2500 184 228 340 25 450 v130la10a 130l10 130 175 38 4500 184 228 340 50 1000 v130la20a 130l20 130 175 70 6500 184 228 340 100 1900 v130la20b 130l20b 130 175 70 6500 184 220 325 100 1900 v140la2 1402 140 180 12 1200 198 242 360 10 160 v140la5 1405 140 180 22 2500 198 242 360 25 400 v140la10a 140l10 140 180 42 4500 198 242 360 50 900 v140la20a 140l20 140 180 75 6500 198 242 340 100 1750 v150la1 1501 150 200 13 1200 212 284 430 10 150 v150la2 1502 150 200 13 1200 212 268 395 10 150 v150la5 1505 150 200 25 2500 212 268 395 25 360 v150LA10A 150l10 150 200 45 4500 212 268 395 50 800 v150la20a 150l20 150 200 80 6500 212 268 395 100 1600 v150la20b 150l20b 150 200 80 6500 212 243 360 100 1600 v175la2 1752 175 225 15 1200 247 303 455 10 130 v175la5 1755 175 225 30 2500 247 303 455 25 350 v175la10a 175l10 175 225 55 4500 247 303 455 50 700 v175la20a 175l20 175 225 90 6500 247 303 455 100 1400 v230la4 2304 230 300 20 1200 324 396 595 10 100 v230la10 230l 230 300 35 2500 324 396 595 25 250 v230la20a 230l20 230 300 70 4500 324 396 595 50 550 v230la40a 230l40 230 300 122 6500 324 396 595 100 1100 part number model size disc dia. (mm) v130la1p 7 p1301 v130la2p 7 p1302 v130la5p 10 p1305 v130la10ap 14 p130l10 v130la20ap 20 p130l20 v130la20bp 20 p130l20b v140la2p 7 p1402 v140la5p 10 p1405 v140la10ap 14 p140l10 v140la20ap 20 p140l20 v150la1p 7 p1501 v150la2p 7 p1502 v150la5p 10 p1505 v150LA10Ap 14 p150l10 v150la20ap 20 p150l20 v150la20bp 20 p150l20b v175la2p 7 p1752 v175la5p 10 p1755 v175la10ap 14 p175l10 v175la20ap 20 p175l20 v230la4p 7 p2304 v230la10p 10 p230l v230la20ap 14 p230l20 v230la40ap 20 p230l40 lead-free and rohs compliant models standard models pb rohs branding branding pb rohs
58 www.littelfuse.com varistor products line voltage operation, radial lead la varistor series device ratings and specifications (continued) v250la2 7 2502 250 330 21 1200 354 473 730 10 90 v250la4 7 2504 250 330 21 1200 354 429 650 10 90 v250la10 10 250l 250 330 40 2500 354 429 650 25 220 v250la20a 14 250l20 250 330 72 4500 354 429 650 50 500 v250la40a 20 250l40 250 330 130 6500 354 429 650 100 1000 v250la40b 20 250l40b 250 330 130 6500 354 413 620 100 1000 v275la2 7 2752 275 369 23 1200 389 515 775 10 80 v275la4 7 2754 275 369 23 1200 389 473 710 10 80 v275la10 10 275l 275 369 45 2500 389 473 710 25 200 v275la20a 14 275l20 275 369 75 4500 389 473 710 50 450 v275la40a 20 275l40 275 369 140 6500 389 473 710 100 900 v275la40b 20 275l40b 275 369 140 6500 389 453 680 100 900 v300la2 7 3002 300 405 25 1200 420 565 870 10 70 v300la4 7 3004 300 405 25 1200 420 517 775 10 70 v300la10 10 300l 300 405 46 2500 420 517 775 25 180 v300la20a 14 300l20 300 405 77 4500 420 517 775 50 400 v300la40a 20 300l40 300 405 165 6500 420 517 775 100 800 v320la7 7 3207 320 420 25 1200 462 565 850 10 65 v320la10 10 320l 320 420 48 2500 462 565 850 25 170 v320la20a 14 320l20 320 420 80 4500 462 565 850 50 380 v320la40b 20 320l40 320 420 150 6500 462 540 810 100 750 v385la7 7 3857 385 505 27 1200 558 682 1025 10 60 v385la10 10 385l 385 505 51 2500 558 682 1025 25 160 v385la20a 14 385l20 385 505 85 4500 558 682 1025 50 360 v385la40b 20 385l40 385 505 160 6500 558 682 1025 100 700 v420la7 7 4207 420 560 30 1200 610 748 1120 10 55 v420la10 10 420l 420 560 55 2500 610 748 1120 25 140 v420la20a 14 420l20 420 560 90 4500 610 748 1120 50 300 v420la40b 20 420l40 420 560 160 6500 610 720 1060 100 600 v460la7 7 4607 460 615 37 1200 702 858 1130 10 55 v480la7 7 4807 480 640 35 1200 670 825 1240 10 50 v480la10 10 480l 480 640 60 2500 670 825 1240 25 120 v480la40a 14 480l40 480 640 105 4500 670 825 1240 50 270 v480la80b 20 480l80 480 640 180 6500 670 790 1160 100 550 v510la10 10 510l 510 675 63 2500 735 910 1350 25 100 v510la40a 14 510l40 510 675 110 4500 735 910 1350 50 250 v510la80b 20 510l80 510 675 190 6500 735 860 1280 100 500 v575la10 10 575l 575 730 65 2500 805 1000 1500 25 90 v575la40a 14 575l40 575 730 120 4500 805 1000 1500 50 220 v575la80b 20 575l80 575 730 220 6500 805 960 1410 100 450 v625la10 10 625l 625 825 67 2500 900 1100 1650 25 80 v625la40a 14 625l40 625 825 125 4500 900 1100 1650 50 210 v625la80b 20 625l80 625 825 230 6500 900 1100 1650 100 425 pa rt number model size disc dia. (mm) maximum rating (85 o c) specifications (25 o c) continuous transient varistor volt- age at 1ma dc test current maximum clamping voltage 8 x 20 s typical capaci- tance f = 1mhz v rms v dc energy 10 x 1000 s peak current 8 x 20 s v m(ac) v m(dc) w tm i tm v nom min v nom max v c i pk c (v) (v) (j) (a) (v) (v) (a) (pf) part number lead-free and rohs compliant models standard models pb rohs branding branding v250la2p p2502 v250la4p p2504 v250la10p p250l v250la20ap p250l20 v250la40ap p250l40 v250la40bp p250l40b v275la2p p2752 v275la4p p2754 v275la10p p275l v275la20ap p275l20 v275la40ap p275l40 v275la40bp p275l40b v300la2p p3002 v300la4p p3004 v300la10p p300l v300la20ap p300l20 v300la40ap p300l40 v320la7p p3207 v320la10p p320l v320la20ap p320l20 v320la40bp p320l40 v385la7p p3857 v385la10p p385l v385la20ap p385l20 v385la40bp p385l40 v420la7p p4207 v420la10p p420l v420la20ap p420l20 v420la40bp p420l40 v460la7p p4607 v480la7p p4807 v480la10p p480l v480la40ap p480l40 v480la80bp p480l80 v510la10p p510l v510la40ap p510l40 v510la80bp p510l80 v575la10p p575l v575la40ap p575l40 v575la80bp p575l80 v625la10p p625l v625la40ap p625l40 v625la80bp p625l80 pb rohs
59 www.littelfuse.com 2 varistor products varistor products la varistor series line voltage operation, radial lead device ratings and specifications (continued) power dissipation ratings should transients occur in rapid succession, the average power dissipation is 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.the operating values of a mov need to be derated at high temperatures as shown in figure 1. because varistors only dissipate a relatively small amount of average power they are not suitable for repetitive applications that involve substantial amounts of average power dissipation. v660la10 10 660l 660 850 70 2500 940 1210 1820 25 70 v660la50a 14 660l50 660 850 140 4500 940 1210 1820 50 200 v660la100b 20 660l100 660 850 250 6500 940 1100 1650 100 400 v1000la80a 14 1000l80 1000 1200 220 4500 1425 1800 2700 50 130 v1000la160b 20 1000l160 1000 1200 360 6500 1425 1600 2420 100 250 note: avera g e power dissipation of transients not to exceed 0.25w, 0.4w, 0.6w or 1w for model sizes 7mm, 10mm, 14mm and 20mm, respectively. part number model size disc dia. (mm) maximum rating (85 o c) specifications (25 o c) continuous transient varistor volt- age at 1ma dc test current maximum clamping voltage 8 x 20 s typical capaci- tance f = 1mhz v rms v dc energy 10 x 1000 s peak current 8 x 20 s v m(ac) v m(dc) w tm i tm v nom min v nom max v c i pk c (v) (v) (j) (a) (v) (v) (a) (pf) v660la10p p660l v660la50ap p660l50 v660la100bp p660l100 v1000la80ap p1000l8 v1000la160bp p1000l16 part number lead-free and rohs compliant models standard models pb rohs branding branding 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 figure 1. current, energy and power derating curve figure 2. peak pulse current test waveform 100 90 50 10 o 1 t t 1 t 2 time percent of peak value o 1 = virtual origin of wave t = time from 10% to 90% of peak t 1 = virtual front time = 1.25 t t 2 = virtual time to half value (impulse duration) example: for an 8/20 s current waveform: 8 s = t 1 = virtual front time 20 s = t 2 = virtual time to half value pb rohs
60 www.littelfuse.com varistor products line voltage operation, radial lead la varistor series transient v-i characteristics curves figure 3. clamping voltage for v130la1(p) - v300la2(p) figure 4. clamping voltage for v130la2 (p) - v300la4(p) figure 5. clamping voltage for v320la7(p) - v480la7(p) figure 6. clamping voltage for v130la5(p) - v420la10(p) figure 7. clamping voltage for v300la10 (p) - v660la10(p) figure 8. clamping voltage for v130la10a (p) - v320la20a 200 6,000 5,000 4,000 3,000 1,000 900 800 700 600 500 400 300 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 2,000 10 3 v150la1(p) v130la1(p) v300la2(p) v275la2(p) v250la2(p) maximum clamping voltage model size 7mm 130 to 300v m(ac) rating t a = -55 o c to 85 o c 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 10 3 4,000 3,000 2,000 1,000 900 800 700 600 500 400 300 200 100 maximum clamping voltage model size 7mm 130 to 300v m(ac) rating t a = -55 o c to 85 o c v300la4(p) v275la4(p) v250la4(p) v230la4(p) v130la2(p) v140la2(p) v150la2(p) v175la2(p) maximum clamping voltage model size 7mm t a = -55 o c to 85 o c 320 to 480v m(ac) rating v420la7 (p) v385la7 (p) v320la7 (p) v460la7 (p) v480la7 (p) 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 10 3 5,000 3,000 2,000 1,000 500 peak amperes (a) maximum peak volts (v) 200 6,000 5,000 4,000 3,000 1,000 900 800 700 600 500 400 300 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 2,000 10 3 v275la10(p) v250la10(p) maximum clamping voltage model size 10mm 130 to 420v m(ac) rating t a = -55 o c to 85 o c v230la10(p) v420la10(p) v175la5(p) v130la5(p) v140la5(p) v150la5(p) 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 10 3 5,000 3,000 2,000 1,000 500 v575la10(p) v510la10(p) v480la10(p) v385la10(p) v300la10(p) v320la10(p) peak amperes (a) v625la10(p) v660la10(p) maximum clamping voltage model size 10mm t a = -55 o c to 85 o c 300 to 660v m(ac) rating maximum peak volts (v) 200 6,000 5,000 4,000 3,000 1,000 900 800 700 600 500 400 300 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 2,000 10 3 v275la20a(p) v250la20a(p) maximum clamping voltage model size 14mm 130 to 320v m(ac) rating t a = -55 o c to 85 o c v230la20a(p) v175la10a(p) v130la10a(p) v140la10a(p) v150LA10A(p) v320la20a(p) v300la20a(p) pb rohs
61 www.littelfuse.com 2 varistor products varistor products la varistor series line voltage operation, radial lead transient v-i characteristics curves (continued) 6 figure 9. clamping voltage for v385la20a (p) - v1000la80a (p) figure 10. clamping voltage for v130la20a (p) - v275la40a (p) figure 11. clamping voltage for v130la20b (p) - v275la40 (p) figure 12. clamping voltage for v140la20a (p) - v230la40a (p) figure 13. clamping voltage for v300la40a - v1000la160b 5,000 3,000 1,000 500 300 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 2,000 10 3 10 -4 v1000la80a(p) v660la50a(p) v575la40a(p) v510la40a(p) v480la40a(p) v420la20a(p) maximum clamping voltage model size 14mm 385 to 1000v m(ac) rating t a = -55 o c to 85 o c v385la20a(p) 700 v625la40a(p) 3,000 2,000 1,000 900 800 700 600 500 400 300 200 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 10 3 v275la40a(p) v250la40a(p) v150la20a(p) v130la20a(p) v175la20a(p) maximum clamping voltage model size 20mm 130 to 275v m(ac) rating t a = -55 o c to 85 o c 3,000 2,000 1,000 900 800 700 600 500 400 300 200 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 10 3 v275la40b(p) v250la40b(p) v130la20b(p) v150la20b(p) maximum clamping voltage model size 20mm 130 to 275v m(ac) rating t a = -55 o c to 85 o c 3,000 2,000 500 200 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 1,000 10 3 maximum clamping voltage model size 20mm 140 to 230v m(ac) rating t a = -55 o c to 85 o c 300 v140la20a(p) v230la40a(p) 5,000 3,000 1,000 500 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 4 maximum peak volts (v) peak amperes (a) 2,000 10 3 v625la80b(p) v660la100b(p) v1000la160b(p) maximum clamping voltage model size 20mm 300 to 1000v m(ac) rating t a = -55 o c to 85 o c v575la80b(p) v420la40b(p) v385la40b(p) v320la40b(p) v300la40a(p) v510la80b(p) v480la80b(p) pb rohs
62 www.littelfuse.com varistor products line voltage operation, radial lead la varistor series pulse rating curves note: if pulse ratings are exceeded, a shift of v n(dc) (at specified current) of more than ?0% could result. this type of shift, which normally results in a decrease of v n(dc) , may result in the device not meeting the original published specifications, but does not prevent the device from continuing to function, and to provide ample protection. figure 14. surge current rating curves for v130la1(p) - v480la7(p) figure 15. surge current rating curves for v130la5(p) - v660la10(p) figure 16. surge current rating curves for v130la10a(p) - v320la20a(p) figure 17. surge current rating curves for v385la20a(p) - v1000la80a(p) figure 18. surge current rating curves for v130la20a(p) - v320la40b(p) figure 19. surge current rating curves for v385la40b(p) - v1000la160b(p) 2,000 1,000 200 100 50 20 10 5 1 2 500 20 100 1,000 10,000 impulse duration ( s) surge current (a) 1 2 10 10 2 10 4 10 5 10 6 model size 7mm v130la1(p) - v480la7(p) 10 3 indefinite 5,000 2,000 200 100 50 20 10 5 2 500 20 100 1,000 10,000 impulse duration ( s) surge current (a) 1 2 10 10 4 10 5 10 6 model size 10mm v130la5(p) - v660la10(p) 10 3 indefinite 1,000 10 2 5,000 2,000 200 100 50 20 10 5 2 500 20 100 1,000 10,000 impulse duration ( s) surge current (a) 1 2 10 10 4 10 5 10 6 model size 14mm v130la10a(p) - v320la20a(p) 10 3 indefinite 1,000 10 2 5,000 2,000 200 100 50 20 10 5 2 500 20 100 1,000 10,000 impulse duration ( s) surge current (a) 1 2 10 10 4 10 5 10 6 model size 14mm v385la20a(p) - v1000la80a(p) v1000la80a 10 3 indefinite 1,000 10 2 10,000 2,000 200 100 50 20 10 5 2 500 20 100 1,000 10,000 impulse duration ( s) surge current (a) 1 2 10 4 10 5 10 6 model size 20mm v130la20a(p) - v320la40b(p) 10 3 indefinite 1,000 10 2 10 5,000 1 10,000 2,000 200 100 50 20 10 5 2 500 20 100 1,000 10,000 impulse duration ( s) surge current (a) 1 2 10 4 10 5 10 6 model size 20mm v385la40b(p) - v1000la160b(p) 10 3 indefinite 1,000 10 2 10 5,000 1 pb rohs
63 www.littelfuse.com 2 varistor products varistor products line voltage operation, radial lead tape and reel specifications 7mm devices 10, 14 and 20mm devices la varistor series crimped leads "lt" crimped leads "lt" straight leads "ls" straight leads "ls" under-crimped leads "lu" p1 p0 e dp dh dh w1 w f t w2 w0 p dp c ? b h 0 ? d0 h 1 seating plane p2 p1 p1 w0 e dp dh dh w1 w f t w2 p dp c ? b h 0 ? d0 h 1 seating plane p2 p0 dh e dh dp w1 w f t w2 p dp ? b h ? d0 h 1 p1 p2 w0 p1 p0 p2 dh e dh dp w1 w f t w2 w0 p dp ? b h ? d0 h 1 u p1 p0 p2 dh e dh dp w1 w f t w2 w0 p dp ? b ho ? d0 h 1 under-crim p ed leads "lu" p0 u dh e dh dp w1 w f t w2 p dp ? b ho ? d0 h 1 p2 w0 p1 pb rohs
64 www.littelfuse.com varistor products la varistor series tape and reel data ?conforms to ansi and eia specifications ?can be supplied to iec publication 286-2 ?radial devices on tape are supplied with crimped leads, straight leads, or under- crimped leads ?7mm parts are available on tape and reel up to 480 vac only ?10mm parts are available on tape and reel up to 510 vac only ?14mm and 20mm parts are available on tape and reel up to 550 vac only line voltage operation, radial lead symbol parameter model size 7mm 10mm 14mm 20mm p pitch of component 12.7 1.0 25.4 1.0 25.4 1.0 25.4 1.0 p 0 feed hole pitch 12.7 0.2 12.7 0.2 12.7 0.2 12.7 0.2 p 1 feed hole center to pitch 3.85 0.7 8.85 0.7 8.85 0.7 8.85 0.7 p 2 hole center to component center 6.35 0.7 12.7 0.7 12.7 0.7 12.7 0.7 f lead to lead distance 5.0 0.8 7.5 0.8 7.5 0.8 7.5 0.8 h component alignment 2.0 max 2.0 max 2.0 max 2.0 max w tape width 18.0 + 1.0 18.0 - 0.5 18.0 + 1.0 18.0 - 0.5 18.0 + 1.0 18.0 - 0.5 18.0 + 1.0 18.0 - 0.5 w 0 hold down tape width 12.0 0.3 12.0 0.3 12.0 0.3 12.0 0.3 w 1 hole position 9.0 + 0.75 9.0 - 0.50 9.0 + 0.75 9.0 - 0.50 9.0 + 0.75 9.0 - 0.50 9.0 + 0.75 9.0 - 0.50 w 2 hold down tape position 0.5 max 0.5 max 0.5 max 0.5 max h height from tape center to component base 18.0 + 2.0 18.0 - 0.0 18.0 + 2.0 18.0 - 0.0 18.0 + 2.0 18.0 - 0.0 18.0 + 2.0 18.0 - 0.0 h 0 seating plane height 16.0 0.5 16.0 0.5 16.0 0.5 16.0 0.5 h 1 component height 32.0 max 36.0 max 40.0 max 46.5 max d 0 feed hole diameter 4.0 0.2 4.0 0.2 4.0 0.2 4.0 0.2 t total tape thickness 0.7 0.2 0.7 0.2 0.7 0.2 0.7 0.2 u under-crimp width 8.0 max 8.0 max p component alignment 3 o max 1.00mm 3 o max 1.00mm 3 o max 1.00mm 3 o max note: dimensions are in mm. 8.0 max 8.0 max pb rohs
65 www.littelfuse.com 2 varistor products varistor products line voltage operation, radial lead la varistor series tape and reel ordering information crimped leads are standard on la types supplied in tape and reel and are denoted by the model letter ?? model letter ? denotes straight leads and letter ? denotes special under-crimped leads. example: standard bulk pack quantity standard model crimped leads straight leads under- crimped leads v130la2 v130lt2 v130ls2 v130lu2 symbol voltage model varistor model size 7mm 10mm 14mm 20mm min max min max min max min max a v130la- v320la - - 12 (0.472) - - 16 (0.630) - - 20 (0.787) - - 26.5 (1.043) v385la- v1000la - - 13 (0.0512) - - 17 (0.689) - - 20.5 (0.807) - - 28 (1.102) ? d all - - 9 (0.354) - - 12.5 (0.492) - - 17 (0.669) - - 23 (0.906) e all 4 (0.157) 6 (0.236) 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) (note 2) 8.5 (0.335) (note 2) e 1 v130la- v320la 1.5 (0.059) 3.5 (0.138) 1.5 (0.059) 3.5 (0.138) 1.5 (0.059) 3.5 (0.138) 1.5 (0.059) 3.5 (0.138) v385a- v1000la 2.5 (0.098) 5.5 (0.217) 2.5 (0.098) 5.5 (0.217) 2.5 (0.098) 5.5 (0.217) 2.5 (0.098) 5.5 (0.217) e v130la- v320la - - 5.6 (0.220) - - 5.6 (0.220) - - 5.6 (0.220) - - 5.6 (0.220) v385la- v510la - - 7.3 (0.287) - - 7.3 (0.287) - - 7.3 (0.287) - - 7.3 (0.287) v1000la - - - - - - - - - - 10.8 (0.425) - - 10.8 (0.425) ? b all (note 3) 0.585 (0.023) 0.685 (0.027) 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) (note 2) 0.86 (0.034) (note 2) notes: 1. dimensions in millimeters, inches in parentheses. 2. 10mm (9mm min, 11mm max) also available; see additional lead style options 3. 1000v parts supplied with lead wire of diameter 1.00 0.05 (0.039 0.002). v550la- v660la - - 8.3 (0.327) - - 8.3 (0.327) - - 8.3 (0.327) - - 8.3 (0.327) varistor voltage model standard bulk pack quantity varistor model size 7mm 10mm 14mm 20mm 130-275 1500 1000 700 500 300-460 1500 700 600 400 510-625 1500 700 500 400 pb rohs
66 www.littelfuse.com varistor products la varistor series line voltage operation, radial lead additional lead style options radial lead types can be supplied with combination preformed crimp and trimmed leads. this option is supplied to the dimensions shown. *seating plane interpretation per iec-717 crimped and trimmed lead ?to order this crimped and trimmed lead style, standard radial type model numbers are changed by replacing the model letter ? with ?? example: for crimped leads without trimming and any variations to the above, contact littelfuse. ?for 10/?mm lead spacing on 20mm diameter models only; append standard model numbers by adding ?10? example: ordering information la series varistors are shipped standard in bulk pack with straight leads and lead spacing outlined in the package dimensions on page 4-13. contact your littelfuse sales representative to discuss the non-standard options outlined below. for lead-free and rohs compliant parts add the letter ? after the base part number and before any option as shown in the ordering example below. ex: v130la2p v420la20apx1347 la series varistors for hi-temperature operating conditions: ?phenolic coated la series devices are available with improved maxi- mum operating maximum temperature 125?. ?these devices also have improved temperature cycling performance capability. ?ratings and specifications are as per standard la series except hi-pot encapsulation isolation voltage capability = 500v. ?to order: add x1347 to part number (e.g. v230la20ax1347) ?marked identifier will contain 'p' to denote phenolic. ?these devices are not ul, csa, vde or cecc certified. ?contact factory for further details. * seating plane l trim a symbol varistor model size 7mm 10mm 14mm 20mm min max min max min max min max a- - 15 (0.591) - - 19.5 (0.768) - - 22.5 (0.886) - - 29.0 (1.142) l trim 2.41 (0.095) 4.69 (0.185) 2.41 (0.095) 4.69 (0.185) 2.41 (0.095) 4.69 (0.185) 2.41 (0.095) 4.69 (0.185) note: dimensions in millimeters, inches in parentheses. standard catalog model order as: v130la20a v130la20ax10 varistor v m(ac) 130v to 1,000v clamp voltage variant (where applicable) series designator/ lead style designator lc = crimped and clipped ls = straight lt = crimped lu = under crimped v xxx la xx x relative energy indicator (one or two digits) p: lead-free and rohs compliant option p + optional suffix other options base part # pb rohs

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