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bta24, btb24, bta25, bta26 and t25 series snuberrless? and standard 25 a triacs main features description available either in through-hole or surface-mount packages, the bta24, btb24, bta25, bta26 and t25 triac series is suitable for general purpose ac switching. they can be used as an on/off function in applications such as static relays, heating regulation, induction motor starting circuits... or for phase control operation in light dimmers, motor speed controllers, ... the snubberless versions (bta/btb...w and t25 series) are specially recommended for use on inductive loads, thanks to their high commutation performances. by using an internal ceramic pad, the bta series provides voltage insulated tab (rated at 2500v rms ) complying with ul standards (file ref.: e81734). order codes symbol value unit i t(rms) 25 a v drm /v rrm 600 and 800 v i gt (q 1 ) 35 to 50 ma part number marking bta24-xxxxxrg see table 6 on page 6 btb24-xxxxxrg bta25-xxxxxrg bta26-xxxxxrg t25xx-xxxg t25xx-xxxg-tr d 2 pak (t25-g) rd91 (bta25) top3 insulated (bta26) to-220ab insulated (bta24) to-220ab (btb24) a2 a1 g 2014-6-16 www.kersemi.com 1
table 1. absolute maximum ratings symbol parameter value unit i t(rms) rms on-state current (full sine wave) d 2 pak / to-220ab t c = 100 c 25 a rd91 / top3 ins. t c = 90 c to-220ab ins. t c = 75 c i tsm non repetitive surge peak on-state current (full cycle, t j initial = 25 c) f = 50 hz t = 20 ms 250 a f = 60 hz t = 16.7 ms 260 i 2 ti 2 t value for fusing t p = 10 ms 340 a 2 s di/dt critical rate of rise of on-state current i g = 2 x i gt , t r 100 ns f = 120 hz t j = 125 c 50 a/s v dsm /v rsm non repetitive surge peak off-state voltage t p = 10 ms t j = 25 c v dsm /v rsm + 100 v i gm peak gate current t p = 20 s t j = 125 c 4 a p g(av) average gate power dissipation t j = 125 c 1 w t stg t j storage junction temperature range operating junction temperature range - 40 to + 150 - 40 to + 125 c table 2. electrical characteristics (t j = 25 c, unless otherwise specified), snubberless? and logic level (3 quadrants) t25-g, bta/btb24...w, bta25...w, bta26...w symbol test conditions quadrant t25 bta/btb unit t2535 cw bw i gt (1) v d = 12 v r l = 33 ? i - ii - iii max. 35 35 50 ma v gt i - ii - iii max. 1.3 v v gd v d = v drm r l = 3.3 k ? t j = 125 c i - ii - iii min. 0.2 v i h (2) i t = 500 ma max. 50 50 75 ma i l i g = 1.2 i gt i - iii max. 70 70 80 ma ii 80 80 100 dv/dt (2) v d = 67 %v drm gate open t j = 125 c min. 500 500 1000 v/s (di/dt)c (2) without snubber t j = 125 cmin.131322a/ms 1. minimum i gt is guaranted at 5% of i gt max. 2. for both polarities of a2 referenced to a1. bta24, btb24, bta25, bta26 and t25 series 2014-6-16 www.kersemi.com 2
j = 25 c, unless otherwise specified), symbol test conditions quadrant value unit i gt (1) v d = 12 v r l = 33 ? i - ii - iii - iv max. 50 100 ma v gt all max. 1.3 v v gd v d = v drm r l = 3.3 k ? t j = 125 c all min. 0.2 v i h (2) )i t = 500 ma max. 80 ma i l i g = 1.2 i gt i - iii - iv max. 70 ma ii 160 dv/dt (2) v d = 67 %v drm gate open t j = 125 c min. 500 v/s (dv/dt)c (2) (di/dt)c = 13.3 a/ms t j = 125 c min. 10 v/s 1. minimum i gt is guaranted at 5% of i gt max. 2. for both polarities of a2 referenced to a1. table 4. static characteristics symbol test conditions value unit v t (1) i tm = 35 a t p = 380 s t j = 25 c max. 1.55 v v t0 (1) threshold voltage t j = 125 c max. 0.85 v r d (1) dynamic resistance t j = 125 c max. 16 m ? i drm i rrm v drm = v rrm t j = 25 c max. 5a t j = 125 c 3 ma 1. for both polarities of a2 referenced to a1. table 5. thermal resistance symbol parameter value unit r th(j-c) junction to case (ac) d 2 pak / to-220ab 0.8 c/w rd91 (insulated) / top3 insulated 1.1 to-220ab insulated 1.7 r th(j-a) junction to ambient (1) s = 1 cm 2 d 2 pa k 4 5 c/w top3 insulated 50 to-220ab / to-220ab insulated 60 1. s = copper surface under tab. bta24, btb24, bta25, bta26 and t25 series table 3. electrical characteristics (t standard (4 quadrants), btb24...b, bta25...b, bta26...b 2014-6-16 www.kersemi.com 3
rms on-state current (full cycle) figure 2. rms on-state current versus case temperature (full cycle) 0 5 10 15 20 25 0 5 10 15 20 25 30 p(w) i (a) t(rms) 0 25 50 75 100 125 0 5 10 15 20 25 30 i (a) t(rms) t (c) c bta24 bta25 / bta26 btb / t25 figure 3. d 2 pak rms on-state current versus ambient temperature (printed circuit board fr4, copper thickness: 35m) (full cycle) figure 4. relative variation of thermal impedance versus pulse duration 0 25 50 75 100 125 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 i (a) t(rms) t (c) amb dpak (s=1cm ) 2 2 1e-3 1e-2 1e-1 1e+0 1e+1 1e+2 5e+2 1e-3 1e-2 1e-1 1e+0 k=[z /r th th ] t (s) p z th(j-c) z bta / btb24 / t25 th(j-a) z bta26 th(j-a) figure 5. on-state characteristics (maximum values) figure 6. surge peak on-state current versus number of cycles 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1 10 100 300 i (a) tm v (v) tm t = 25c j . t max. v = 0.85v r = 16 m j to d ? t= j t max. j 1 10 100 1000 0 50 100 150 200 250 300 i (a) tsm number of cycles t=20ms one cycle non repetitive t initial=25c j repetitive t =75c c bta24, btb24, bta25, bta26 and t25 series figure 1. maximum power dissipation versus 2014-6-16 www.kersemi.com 4
figure 7. non-repetitive surge peak on-state current for a sinusoidal pulse with width t p < 10 ms and corresponding value of i 2 t figure 8. relative variation of gate trigger current, holding current and latching current versus junction temperature (typical values) 0.01 0.10 1.00 10.00 100 1000 3000 i (a), i t (a s) tsm 22 t (ms) p t initial=25c j i tsm di/dt limitation: 50a/s i t 2 -40 -20 0 20 40 60 80 100 120 140 0.0 0.5 1.0 1.5 2.0 2.5 t (c) j i,i,i[t] / gt h l j i ,i ,i [t =25c] gt h l j i gt i h & i l figure 9. relative variation of critical rate of decrease of main current versus (dv/dt)c (typical values) figure 10. relative variation of critical rate of decrease of main current versus (dv/dt)c figure 11. d 2 pak thermal resistance junction to ambient versus copper surface under tab (printed circuit board fr4, copper thickness: 35 m) 0.1 1.0 10.0 100.0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 (dv/dt)c (v/s) (di/dt)c [(dv/dt)c] / specified (di/dt)c t2535/cw/bw b 0 25 50 75 100 125 0 1 2 3 4 5 6 (di/dt)c [t ] / pecified] j (di/dt)c [t s j t (c) j 0 4 8 12 16 20 24 28 32 36 40 0 10 20 30 40 50 60 70 80 s(cm2) r (c/w) th(j-a) dpak 2 bta24, btb24, bta25, bta26 and t25 series 2014-6-16 www.kersemi.com 5
2 ordering information scheme figure 12. bta and btb series figure 13. t25 series table 6. product selector part numbers voltage (xxx) sensitivity type package 600 v 800 v bta24-xxxbrg x x 50 ma standard to-220ab bta/btb (1) 24-xxxbwrg 1. btb: non insulated to-220ab package x x 50 ma snubberless to-220ab bta/btb (1) 24-xxxcwrg x x 35 ma snubberless to-220ab bta25-xxxbrg x x 50 ma standard rd91 bta25-xxxbwrg x x 50 ma snubberless rd91 bta25-xxxcwrg x x 35 ma snubberless rd91 bta26-xxxbrg x x 50 ma standard top3 ins. bta26-xxxbwrg x x 50 ma snubberless top3 ins. bta26-xxxcwrg x x 35 ma snubberless top3 ins. t2535-xxxg x x 35 ma snubberless d 2 pa k bt a 24 - 600 bw rg triac series insulation current voltage sensitivity and type packing mode a = insulated b = non insulated 24 = 25a in to-220ab 25 = 25a in rd91 26 = 25a in top3 600 = 600v 800 = 800v b = 50ma standard bw = 50ma snubberless cw = 35ma rg = tube snubberless t 25 35 - 600 g (-tr) triac series sensitivity voltage package packing mode current 25 = 25a 35 = 35ma 600 = 600v 800 = 800v g = d pak blanck = tube -tr = tape & reel 2 bta24, btb24, bta25, bta26 and t25 series 2014-6-16 www.kersemi.com 6
figure 14. d 2 pak foot print dimensions (in millimeters) table 7. d 2 pak package dimensions ref. dimensions millimeters inches min. typ. max. min. typ. max. a 4.30 4.60 0.169 0.181 a1 2.49 2.69 0.098 0.106 a2 0.03 0.23 0.001 0.009 b 0.70 0.93 0.027 0.037 b2 1.25 1.40 0.048 0.055 c 0.45 0.60 0.017 0.024 c2 1.21 1.36 0.047 0.054 d 8.95 9.35 0.352 0.368 e 10.00 10.28 0.393 0.405 g 4.88 5.28 0.192 0.208 l 15.00 15.85 0.590 0.624 l2 1.27 1.40 0.050 0.055 l3 1.40 1.75 0.055 0.069 r 0.40 0.016 v2 0 8 0 8 g l l3 l2 b b2 e 2mm min. flat zone a c2 d r a2 v2 c a1 16.90 10.30 8.90 3.70 5.08 1.30 bta24, btb24, bta25, bta26 and t25 series 3 package information 2014-6-16 www.kersemi.com 7
ref. dimensions millimeters inches min. max. min. max. a 40.00 1.575 a1 29.90 30.30 1.177 1.193 a2 22.00 0.867 b 27.00 1.063 b1 13.50 16.50 0.531 0.650 b2 24.00 0.945 c 14.00 0.551 c1 3.50 0.138 c2 1.95 3.00 0.077 0.118 e3 0.70 0.90 0.027 0.035 f 4.00 4.50 0.157 0.177 i 11.20 13.60 0.441 0.535 l1 3.10 3.50 0.122 0.138 l2 1.70 1.90 0.067 0.075 n1 33 43 33 43 n2 28 38 28 38 a e3 n2 n1 b f i a1 b1 l1 a2 l2 b2 c c2 c1 bta24, btb24, bta25, bta26 and t25 series table 8. rd91 package dimensions 2014-6-16 www.kersemi.com 8
table 9. top3 insulated package dimensions ref. dimensions millimeters inches min. typ. max. min. typ. max. a 4.4 4.6 0.173 0.181 b 1.45 1.55 0.057 0.061 c 14.35 15.60 0.565 0.614 d 0.5 0.7 0.020 0.028 e 2.7 2.9 0.106 0.114 f 15.8 16.5 0.622 0.650 g 20.4 21.1 0.815 0.831 h 15.1 15.5 0.594 0.610 j 5.4 5.65 0.213 0.222 k 3.4 3.65 0.134 0.144 ?l 4.08 4.17 0.161 0.164 p 1.20 1.40 0.047 0.055 r 4.60 0.181 r h k g f e d b a c jj p ?l bta24, btb24, bta25, bta26 and t25 series 2014-6-16 www.kersemi.com 9
ref. dimensions millimeters inches min. typ. max. min. typ. max. a 15.20 15.90 0.598 0.625 a1 3.75 0.147 a2 13.00 14.00 0.511 0.551 b 10.00 10.40 0.393 0.409 b1 0.61 0.88 0.024 0.034 b2 1.23 1.32 0.048 0.051 c 4.40 4.60 0.173 0.181 c1 0.49 0.70 0.019 0.027 c2 2.40 2.72 0.094 0.107 e 2.40 2.70 0.094 0.106 f 6.20 6.60 0.244 0.259 ?i 3.75 3.85 0.147 0.151 i4 15.80 16.40 16.80 0.622 0.646 0.661 l 2.65 2.95 0.104 0.116 l2 1.14 1.70 0.044 0.066 l3 1.14 1.70 0.044 0.066 m 2.60 0.102 c b2 c2 f ? i l a a1 a2 b e b1 i4 l3 l2 c1 m bta24, btb24, bta25, bta26 and t25 series table 10. to-220ab (insulated and non-insulated) package dimensions 2014-6-16 www.kersemi.com 10
note: xxx = voltage, yy = sensitivity, z = type 5 revision history ordering type marking package weight base qty delivery mode bta/btb24-xxxyyzrg bta/btb24xxxyyz to-220ab 2.3 g 50 tube bta25-xxxyyzrg bta25-xxxyyz rd91 20 g 25 bulk bta26-xxxyzrg bta26-xxxyyz top3 ins. 4.5 g 30 tube t2535-xxxg t2535xxxg d 2 pak 1.5 g 50 tube t2535-xxxg-tr t2535xxxg 1000 tape and reel date revision description of changes oct-2002 6a previous update. 13-feb-2006 7 to-220ab delivery mode changed from bulk to tube. ecopack statement added. 31-may-2006 8 reformatted to current standard. t c in figure 3 changed to t amb 31-jul-2006 9 typing error corrected on page 1 (btb124 instead of btb24) bta24, btb24, bta25, bta26 and t25 series 4 ordering information 2014-6-16 www.kersemi.com 11

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