march 2006 rev 1 1/10 10 STTH512 ultrafast recovery - 1200 v diode main product characteristics features and benefits ultrafast, soft recovery very low conduction and switching losses high frequency and/or high pulsed current operation high reverse voltage capability high junction temperature insulated package: to-220fpac electrical insulation = 2000 v rms capacitance = 12 pf description the high quality design of this diode has produced a device with low leakage current, regularly reproducible characteristics and intrinsic ruggedness. these characteristics make it ideal for heavy duty applications that demand long term reliability. such demanding applications include industrial power supplies, motor control, and similar mission-critical systems that require rectification and freewheeling. these diodes also fit into auxiliary functions such as snubber, bootstrap, and demagnetization applications. the improved performance in low leakage current, and therefore thermal runaway guard band, is an immediate competitive advantage for this device. order codes i f(av) 5 a v rrm 1200 v t j 175 c v f (typ) 1.25 v t rr (typ) 48 ns part number marking STTH512d STTH512d STTH512b STTH512b STTH512b-tr STTH512b STTH512fp STTH512fp k a to-220fpac STTH512fp dpak STTH512b to-220ac STTH512d k k a a k a nc www.st.com
characteristics STTH512 2/10 1 characteristics to evaluate the conduction losses use the following equation: p = 1.5 x i f(av) + 0.08 i f 2 (rms) table 1. absolute ratings (limiting values at 25 c, unless otherwise specified) symbol parameter value unit v rrm repetitive peak reverse voltage 1200 v i f(rms) rms forward current to-220ac / to-220fpac 30 a dpak 10 i f(av) average forward current, = 0.5 to-220ac / dpak t c = 145 c 5a to-220fpac t c = 105 c i frm repetitive peak forward current t p = 5 s, f = 5 khz square 60 a i fsm surge non repetitive forward current t p = 10 ms sinusoidal 55 a t stg storage temperature range -65 to + 175 c t j maximum operating junction temperature 175 c table 2. thermal parameters symbol parameter value unit r th(j-c) junction to case to-220ac / dpak 2.5 c/w to-220fpac 5.8 table 3. static electrical characteristics symbol parameter test conditions min. typ max. unit i r (1) reverse leakage current t j = 25 c v r = v rrm 5 a t j = 125 c 3 30 v f (2) forward voltage drop t j = 25 c i f = 5 a 2.2 v t j = 125 c 1.30 2.0 t j = 150 c 1.25 1.9 1. pulse test: t p = 5 ms, < 2 % 2. pulse test: t p = 380 s, < 2 % table 4. dynamic characteristics symbol parameter test conditions min. typ max. unit t rr reverse recovery time i f = 1 a, di f /dt = -50 a/s, v r = 30 v, t j = 25 c 95 ns i f = 1 a, di f /dt = -100 a/s, v r = 30 v, t j = 25 c 48 70 i rm reverse recovery current i f = 5 a, di f /dt = -200 a/s, v r = 600 v, t j = 125 c 11 16 a
STTH512 characteristics 3/10 s softness factor i f = 5 a, di f /dt = -200 a/s, v r = 600 v, t j = 125 c 2 t fr forward recovery time i f = 5 a di f /dt = 50 a/s v fr = 1.5 x v fmax , t j = 25 c 400 ns v fp forward recovery voltage i f = 5 a, di f /dt = 50 a/s, t j = 25 c 9.5 v table 4. dynamic characteristics figure 1. conduction losses versus average current figure 2. forward voltage drop versus forward current 0 1 2 3 4 5 6 7 8 9 10 11 12 13 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 p(w) t =tp/t tp = 0.05 = 1 i (a) f(av) = 0.1 = 0.2 = 0.5 0 5 10 15 20 25 30 35 40 45 50 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 i (a) fm v (v) fm t =25c (maximum values) j t =150c (maximum values) j t =150c (typical values) j figure 3. relative variation of thermal impedance junction to case versus pulse duration figure 4. relative variation of thermal impedance junction to case versus pulse duration 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.e-03 1.e-02 1.e-01 1.e+00 z/r th(j-c) th(j-c) t (s) p single pulse to-220ac dpak 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.e-03 1.e-02 1.e-01 1.e+00 1.e+01 z/r th(j-c) th(j-c) t (s) p single pulse to-220fpac figure 5. peak reverse recovery current versus di f /dt (typical values) figure 6. reverse recovery time versus di f /dt (typical values)
characteristics STTH512 4/10 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 0 100 200 300 400 500 i (a) rm di /dt(a/s) f i =2 x i ff(av) i=i ff(av) i =0.5 x i ff(av) v =600v t =125c r j 0 50 100 150 200 250 300 350 400 450 500 550 600 0 100 200 300 400 500 t (ns) rr di /dt(a/s) f i =2 x i ff(av) i=i ff(av) i =0.5 x i ff(av) v =600v t =125c r j figure 7. reverse recovery charges versus di f /dt (typical values) figure 8. softness factor versus di f /dt (typical values) 0 200 400 600 800 1000 1200 1400 1600 1800 2000 0 100 200 300 400 500 q (nc) rr di /dt(a/s) f v =600v t =125c r j i =2 x i ff(av) i=i ff(av) i =0.5 x i ff(av) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0 100 200 300 400 500 s factor i 2xi t =125c f f(av) j v =600v r di /dt(a/s) f figure 9. relative variations of dynamic parameters versus junction temperature figure 10. transient peak forward voltage versus di f /dt (typical values) 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 25 50 75 100 125 i rm q rr s factor t (c) j i=i reference: t =125c ff(av) j v =600v r t rr 0 5 10 15 20 25 30 35 40 45 50 0 50 100 150 200 250 300 v (v) fp di /dt(a/s) f i=i t =125c ff(av) j
STTH512 characteristics 5/10 figure 11. forward recovery time versus di f /dt (typical values) figure 12. junction capacitance versus reverse voltage applied (typical values) figure 13. thermal resistance junction to ambient versus copper surface under tab (epoxy printed circuit board fr4, e cu = 35 m) 200 300 400 500 600 700 0 50 100 150 200 250 300 350 400 450 500 t (ns) fr di /dt(a/s) f i=i t =125c ff(av) j v =1.5 x v max. fr f 1 10 100 1 10 100 1000 c(pf) v (v) r f=1mhz v =30mv t =25c osc rms j 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 s (cm2) cu r (c/w) th(j-a)
package mechanical data STTH512 6/10 2 package mechanical data epoxy meets ul94, v0 cooling method: by conduction (c) recommended torque value: 0.55 nm (to-220ac) maximum torque value: 0.7 nm (to-220ac) table 5. t0-220ac dimensions ref. dimensions millimeters inches min. max. min. max. a 4.40 4.60 0.173 0.181 c 1.23 1.32 0.048 0.051 d 2.40 2.72 0.094 0.107 e 0.49 0.70 0.019 0.027 f 0.61 0.88 0.024 0.034 f1 1.14 1.70 0.044 0.066 g 4.95 5.15 0.194 0.202 h2 10.00 10.40 0.393 0.409 l2 16.40 typ. 0.645 typ. l4 13.00 14.00 0.511 0.551 l5 2.65 2.95 0.104 0.116 l6 15.25 15.75 0.600 0.620 l7 6.20 6.60 0.244 0.259 l9 3.50 3.93 0.137 0.154 m 2.6 typ. 0.102 typ. diam. i 3.75 3.85 0.147 0.151 a c d l7 ? i l5 l6 l9 l4 f h2 g l2 f1 e m
STTH512 package mechanical data 7/10 table 6. t0-220fpac dimensions ref dimensions millimeters inches min. max. min. max. a 4.4 4.6 0.173 0.181 b 2.5 2.7 0.098 0.106 d 2.5 2.75 0.098 0.108 e 0.45 0.70 0.018 0.027 f 0.75 1 0.030 0.039 f1 1.15 1.70 0.045 0.067 g 4.95 5.20 0.195 0.205 g1 2.4 2.7 0.094 0.106 h 10 10.4 0.393 0.409 l2 16 typ. 0.63 typ. l3 28.6 30.6 1.126 1.205 l4 9.8 10.6 0.386 0.417 l5 2.9 3.6 0.114 0.142 l6 15.9 16.4 0.626 0.646 l7 9.00 9.30 0.354 0.366 dia. 3.00 3.20 0.118 0.126 h a b dia l7 l6 l5 f1 f d e l4 g1 g l2 l3
package mechanical data STTH512 8/10 figure 14. dpak footprint (dimensions in mm) in order to meet environmental requirements, st offers these devices in ecopack? packages. these packages have a lead-free second level interconnect . the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com. table 7. dpak dimensions ref. dimensions millimeters inches min. max min. max. a 2.20 2.40 0.086 0.094 a1 0.90 1.10 0.035 0.043 a2 0.03 0.23 0.001 0.009 b 0.64 0.90 0.025 0.035 b2 5.20 5.40 0.204 0.212 c 0.45 0.60 0.017 0.023 c2 0.48 0.60 0.018 0.023 d 6.00 6.20 0.236 0.244 e 6.40 6.60 0.251 0.259 g 4.40 4.60 0.173 0.181 h 9.35 10.10 0.368 0.397 l2 0.80 typ. 0.031 typ. l4 0.60 1.00 0.023 0.039 v2 0 8 0 8 h l4 g b l2 e b2 d a1 r r c a c2 0.60 min. v2 a2 6.7 6.7 3 3 1.6 1.6 2.3 2.3
STTH512 ordering information 9/10 3 ordering information 4 revision history part number marking package weight base qty delivery mode STTH512d STTH512d to-220ac 1.86g 50 tube STTH512fp STTH512fp to-220fpac 2.2 50 tube STTH512b STTH512b dpak 0.30 75 tube STTH512b-tr STTH512b dpak 0.30 2500 tape & reel date revision description of changes 02-mar-2006 1 first issue.
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