new product features ?plastic package has underwriters laboratories flammability classification 94v-0 ?ideally suited crt horizontal deflection ?fast reverse recovery time ?fast forward recovery time ?high temperature soldering in accordance with cecc 802 / reflow guaranteed ?glass passivated chip junction 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 position: any mounting torque: 10 in-lbs maximum weight: 0.08 ounce, 2.24 grams bys459-1500, bys459f-1500 BYS459B-1500 high voltage damper diodes reverse voltage 1500v forward current 6.5a reverse recovery time 350ns 6/20/01 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. pin 1 pin 2 0.676 (17.2) 0.646 (16.4) ito-220ac (bys459f) 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) to-220ac (bys459) dimensions in inches and (millimeters) to-263ab (bys459b)
maximum ratings (t a = 25 c unless otherwise noted) parameter symbol value unit maximum repetitive peak reverse voltage v rrm 1500 v maximum working reverse voltage v rwm 1300 v maximum dc blocking voltage v dc 1500 v maximum average forward rectified current i f(av) 6.5 a peak working forward current at f = 48kh z i f(peak) 12 a peak forward surge current 8.3ms single half sine-wave superimposed i fsm 130 a on rated load (jedec method) at t j = 150 c operating junction and storage temperature range t j , t stg 55 to +150 c rms isolation voltage (bys459f types only) 4500 (1) from terminals to heatsink with t = 1.0 second, rh 30% v isol 3500 (2) v 1500 (3) electrical characteristics (t j = 25 c unless otherwise noted) parameter symbol value unit maximum instantaneous i f = 6.5a, t j = 25 c v f 1.3 v forward voltage (4) i f = 6.5a, t j = 125 c 1.2 maximum dc reverse current at v rwm t j = 25 ci r 250 a t j = 125 c 1.0 ma maximum reverse recovery time at i f = 1.0a, di/dt = 50a/ s, v r = 30v t rr 350 ns maximum reverse recovery charge at i f = 2.0a, di/dt = 20a/ s q rr 3.0 c maximum forward recovery time 250 i f = 6.5a, di/dt = 52a/ s t fr ns peak forward recovery overshoot voltage v fp 20 v i f = 6.5a, di/dt = 52a/ s thermal characteristics (t a = 25 c unless otherwise noted) parameter symbol bys459 bys459f bys459b unit typical thermal resistance from junction to ambient r ja 60 55 60 c/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 4.9 mm (0.19 ) (4) pulse test: 300 s pulse width, 1% duty cycle bys459-1500, bys459f-1500 BYS459B-1500 high voltage damper diodes
bys459-1500, bys459f-1500 BYS459B-1500 high voltage damper diodes ratings and characteristic curves (t a = 25 c unless otherwise noted) 0 0.5 1.0 1.5 2.0 2.5 0 200 400 600 800 1000 1200 1400 1600 0.1 1 10 100 150 175 125 100 75 50 25 0 2 4 6 8 10 12 0.01 0.1 1 10 100 1000 instantaneous reverse current ( a) fig. 4 ?typical reverse current fig. 1 ?forward current derating curve fig. 3 ?typical forward voltage average forward current (a) v f instantaneous voltage (v) tc - case temperature ( c) number of cycles at 60 h z 0 2 4 6 8 10 12 0 50 100 150 200 250 300 350 400 450 fig. 6 ?typical reverse recovery time t rr , reverse recovery time (ns) i f, forward current (a) v r reverse voltage (v) i f instantaneous forward current (a) v r, reverse voltage (v) fig. 5 ?typical capacitance junction capacitance (pf) 0.1 1 10 100 1 10 100 1000 0 40 60 80 100 120 140 20 1 100 10 fig. 2 ?maximum non-repetitive peak forward surge current peak forward surge current (a) bys459-1500 BYS459B-1500 bys459f-1500 t j = 125 c t j = 25 c t j = 100 c t j = 125 c t j = 25 c di/dt = 50a/ s di/dt = 100a/ s
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