nsxt, nsfxt, nsbxt vishay semiconductors formerly general semiconductor glass passivated general purpose plastic rectifier reverse voltage 50 to 1000 forward current 8.0a 0.08 (2.032) 0.24 (6.096) 0.42 (10.66) 0.63 (17.02) 0.12 (3.05) 0.33 (8.38) mounting pad layout to-263ab 0.380 (9.65) 0.411 (10.45) 0.320 (8.13) 0.360 (9.14) 0.591 (15.00) 0.624 (15.85) 1 2 0.245 (6.22) min k 0.027 (0.686) 0.037 (0.940) 0.105 (2.67) 0.095 (2.41) 0.205 (5.20) 0.195 (4.95) k 0.160 (4.06) 0.190 (4.83) 0.045 (1.14) 0.055 (1.40) 0.021 (0.53) 0.014 (0.36) 0.110 (2.79) 0.140 (3.56) 0.090 (2.29) 0.110 (2.79) 0.047 (1.19) 0.055 (1.40) pin 1 pin 2 k - heatsink 0-0.01 (0-0.254) 0.060 (1.52) 0.405 (10.27) 0.383 (9.72) 0.191 (4.85) 0.171 (4.35) 0.600 (15.5) 0.580 (14.5) 0.560 (14.22) 0.530 (13.46) 0.037 (0.94) 0.027 (0.69) 0.140 (3.56) 0.130 (3.30) 0.350 (8.89) 0.330 (8.38) 0.188 (4.77) 0.172 (4.36) 0.110 (2.80) 0.100 (2.54) 0.131 (3.39) 0.122 (3.08) 0.110 (2.80) 0.100 (2.54) 0.022 (0.55) 0.014 (0.36) 0.205 (5.20) 0.195 (4.95) 12 pin dia. dia. pin 1 pin 2 0.676 (17.2) 0.646 (16.4) ito-220ac (nsfxt) to-220ac (nsxt) dimensions in inches and (millimeters) to-263ab (nsbxt) 0.154 (3.91) 0.148 (3.74) dia. 0.113 (2.87) 0.103 (2.62) 0.185 (4.70) 0.175 (4.44) 0.055 (1.39) 0.045 (1.14) 0.145 (3.68) 0.135 (3.43) 0.350 (8.89) 0.330 (8.38) 0.160 (4.06) 0.140 (3.56) 0.037 (0.94) 0.027 (0.68) 0.205 (5.20) 0.195 (4.95) 0.560 (14.22) 0.530 (13.46) 0.022 (0.56) 0.014 (0.36) 0.110 (2.79) 0.100 (2.54) 12 1.148 (29.16) 1.118 (28.40) 0.105 (2.67) 0.095 (2.41) 0.410 (10.41) 0.390 (9.91) 0.635 (16.13) 0.625 (15.87) 0.603 (15.32) 0.573 (14.55) pin 0.415 (10.54) max. pin 1 pin 2 case 0.370 (9.40) 0.360 (9.14) features ?plastic package has underwriters laboratory flammability classification 94v-0 ?high forward current capability ?high surge current capability ?low forward voltage drop ?glass passivated chip junction ?high temperature soldering guaranteed: 260?/10 seconds, 0.160 (4.06mm) lead length mechanical data case: jedec to-220ac, ito-220ac & to-263ab molded plastic body terminals: plated leads solderable per mil-std-750, method 2026 polarity: as marked mounting torque: 10 in. -lbs. max. mounting position: any weight: 0.064 ounce, 1.81 grams document number 88690 www.vishay.com 08-jul-02 1
nsxt, nsfxt, nsbxt vishay semiconductors formerly general semiconductor maximum ratings & thermal characteristics ratings at 25? ambient temperature unless otherwise specified. ns8 ns8 ns8 ns8 ns8 ns8 ns8 parameter symbols at bt dt gt jt kt mt units maximum repetitive peak reverse voltage v rrm 50 100 200 400 600 800 1000 v maximum rms voltage v rms 35 70 140 280 420 560 700 v maximum dc blocking voltage v dc 50 100 200 400 600 800 1000 v maximum average forward rectified current at t c =100? i f(av) 8.0 a peak forward surge current 8.3ms single half sine-wave superimposed on i fsm 125 a rated load (jedec method) operating junction and storage temperature range t j , t stg -55 to +150 ? rms isolation voltage (nsf type only) 4500 (1) from terminals to heatsink v isol 3500 (2) v with t = 1.0 second, rh 30% 1500 (3) electrical characteristics ratings at 25? ambient temperature unless otherwise specified. ns8 ns8 ns8 ns8 ns8 ns8 ns8 parameter symbols at bt dt gt jt kt mt units maximum instantaneous forward voltage at 8.0a v f 1.1 v maximum dc reverse current at rated dc blocking voltage t c =25? i r 10 a t c =100? 100 typical junction capacitance at 4.0v, 1mhz c j 55 pf thermal characteristics ratings at 25? ambient temperature unless otherwise specified. parameter symbols nsxt nsfxt nsbxt units typical thermal resistance (4) r jc 3.0 5.0 3.0 ?/w notes: (1) clip mounting (on case), where lead does not overlap heatsink with 0.110 offset (2) clip mounting (on case), where leads do overlap heatsink (3) screw mounting with 4-40 screw, where washer diameter is 4.9mm (0.19? (4) thermal resistance from junction to case mounted on heat sink www.vishay.com document number 88690 2 08-jul-02
nsxt, nsfxt, nsbxt vishay semiconductors formerly general semiconductor ratings and characteristic curves (t a = 25? unless otherwise noted) case temperature ( c) fig. 1 ?forward current derating curve average forward current (a) fig. 3 ?typical instantaneous forward characteristics instantaneous forward voltage (v) instantaneous forward current (a) percent of rated peak reverse voltage (%) instantaneous reverse current ( a) fig. 4 ?typical reverse characteristics 1 10 100 50 25 0 75 100 125 150 175 number of cycles at 60 h z fig. 2 ?maximum non-repetitive peak forward surge current peak forward surge current (a) reverse voltage (v) junction capacitance (pf) fig. 5 ?typical junction capacitance per leg 0 50 100 150 0 2.0 4.0 6.0 8.0 10 60 h z resistive or inductive load 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0.1 1 10 100 0 20 40 60 80 100 0.1 1 10 100 0.1 1 10 100 1,000 0 20 40 60 80 100 120 t j = 25 c f = 1.0mh z vsig = 50mvp-p 1.0 cycle t j = t j max. 8.3ms single half sine-wave (jedec method) t j = 75 c t j = 25 c t j = 100 c pulse width = 300 s 1% duty cycle document number 88690 www.vishay.com 08-jul-02 3
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