smd zener diode v oltage: 2.4 to 39 v olts power: 350 mw atts rohs device page 1 rev :a features -planar die construction -350mw power dissipation on fr-4 pcb -ideally suited for automated assembly process -general purpose, medium current mechanical data -case: sot -23 , molded plastic -t erminals: solderable per mil-std- 202g,method 208 -polarity: see diagram below -mounting position: any -marking: see table on page2 czrt5221b-hf thru czrt5267b-hf p ar am et er s ym bo l v al ue u ni t electrical characteristics (t a=25c, unless otherwise specified) 0.9 v v f forward voltage drop at i f =10ma po we r d iss ipa tio n ( no tes a) ,t a = 25 c 35 0 p d mw qw -jz002 single 35 7 o c/ w r ja thermal resistance, junction to ambient air (notes a) op era tin g j un cti on an d s tor ag e t em pe rat ure ra ng e -65 to +1 50 t j o c n ot es : a . v al id p ro vi de d th at d ev ic e te rm in al s ar e ke pt a t a m bi en t t em pe ra tu re . b . t es te d w ith p ul se s, t p 1. 0m s . comchip t echnology co., l td. d i m e n s i o n s i n i n c h e s a n d ( m i l l i m e t e r ) s o t - 2 3 3 1 2 0.1 19(3.00) 0.1 10(2.80) 0.056(1.40) 0.047(1.20) 0.079(2.00) 0.071(1.80) 0.041(1.05) 0.035(0.90) 0.020(0.50) 0.012(0.30) 0.006(0.15) 0.002(0.05) 0.100(2.55) 0.089(2.25) 0.004(0.10) max 0.008(0.20) min -w eight: 0.0078 gram(approx.). halogen free
smd zener diode page 2 electrical characteristics(t a = 25c) rev :a min. nom. max. max. izt(ma) max. izk(ma) max. vr(v) czr t5221b-hf 2.28 2.4 2.52 30 20.0 1200 0.25 100 1.0 kc1 czr t5222b-hf 2.38 2.5 2.63 30 20.0 1250 0.25 100 1.0 kc2 czr t5223b-hf 2.57 2.7 2.84 30 20.0 1300 0.25 75 1.0 kc3 czr t5225b-hf 2.85 3.0 3.15 30 20.0 1600 0.25 50 1.0 kc5 czr t5226b-hf 3.14 3.3 3.47 28 20.0 1600 0.25 25 1.0 kg1 czr t5227b-hf 3.42 3.6 3.78 24 20.0 1700 0.25 15 1.0 kg2 czr t5228b-hf 3.71 3.9 4.10 23 20.0 1900 0.25 10 1.0 kg3 czr t5229b-hf 4.09 4.3 4.52 22 20.0 2000 0.25 5.0 1.0 kg4 czr t5230b-hf 4.47 4.7 4.94 19 20.0 1900 0.25 5.0 2.0 kg5 czr t5231b-hf 4.85 5.1 5.36 17 20.0 1600 0.25 5.0 2.0 ke1 czr t5232b-hf 5.32 5.6 5.88 1 1 20.0 1600 0.25 5.0 3.0 ke2 czr t5234b-hf 5.89 6.2 6.51 7 20.0 1000 0.25 5.0 4.0 ke4 czr t5235b-hf 6.46 6.8 7.14 5 20.0 750 0.25 3.0 5.0 ke5 czr t5236b-hf 7.13 7.5 7.88 6 20.0 500 0.25 3.0 6.0 kf1 czr t5237b-hf 7.79 8.2 8.61 8 20.0 500 0.25 3.0 6.5 kf2 czr t5239b-hf 8.65 9.1 9.56 10 20.0 600 0.25 3.0 7.0 kf4 czr t5240b-hf 9.50 10 10.50 17 20.0 600 0.25 3.0 8.0 kf5 czr t5241b-hf 10.45 1 1 1 1.55 22 20.0 600 0.25 2.0 8.4 kh1 czr t5242b-hf 1 1.40 12 12.60 30 20.0 600 0.25 1.0 9.1 kh2 czr t5243b-hf 12.35 13 13.65 13 9.5 600 0.25 0.5 9.9 kh3 czr t5245b-hf 14.25 15 15.75 16 8.5 600 0.25 0.1 1 1 kh5 czr t5246b-hf 15.20 16 16.80 17 7.8 600 0.25 0.1 12 kj1 czr t5248b-hf 17.10 18 18.90 21 7.0 600 0.25 0.1 14 kj3 czr t5250b-hf 19.00 20 21.00 25 6.2 600 0.25 0.1 15 kj5 czr t5251b-hf 20.90 22 23.10 29 5.6 600 0.25 0.1 17 kk1 czr t5252b-hf 22.80 24 25.20 33 5.2 600 0.25 0.1 18 kk2 czr t5254b-hf 25.65 27 28.35 41 5.0 600 0.25 0.1 21 kk4 czr t5255b-hf 26.60 28 29.40 44 4.5 600 0.25 0.1 21 kk5 czr t5256b-hf 28.50 30 31.50 49 4.2 600 0.25 0.1 23 km1 czr t5257b-hf 31.35 33 34.65 58 3.8 700 0.25 0.1 25 km2 czr t5258b-hf 34.20 36 37.80 70 3.4 700 0.25 0.1 27 km3 czr t5259b-hf 37.05 39 40.95 80 3.2 800 0.25 0.1 30 km4 czr t5260b-hf 40.85 43 45.15 93 3.0 900 0.25 0.1 33 km5 czr t5261b-hf 44.65 47 49.35 105 2.7 1000 0.25 0.1 36 kn1 czr t5262b-hf 48.45 51 53.55 125 2.5 1 100 0.25 0.1 39 kn2 czr t5263b-hf 53.20 56 58.80 150 2.2 1300 0.25 0.1 43 kn3 czr t5264b-hf 57.00 60 63.00 170 2.1 1400 0.25 0.1 46 kn4 czr t5265b-hf 58.90 62 65.10 185 2.0 1500 0.25 0.1 47 kn5 czr t5266b-hf 64.60 68 71.40 230 1.8 1600 0.25 0.1 52 kp1 czr t5267b-hf 71.25 75 78.75 270 1.7 1400 0.25 0.1 56 kp2 part number operating resistance zzt(ohm) rising operating resistance zzk(ohm) marking code reverse current ir(ua) zener v oltage vz(v)@izt note: 5% standard vz t olerance comchip t echnology co., l td. qw -jz002
f o r w a r d v o lt a g e ( v ) f o r w a r d c u r r e n t ( m a ) fig.1 t ypical forward voltage 1 1 0 1 0 0 1 0 0 0 0 . 4 0 . 6 0 . 8 1 . 0 1 . 2 1 . 1 0 . 9 0 . 7 0 . 5 ra ting and characteristic cur ves (czr t5221b-hf thru czr t5267b-hf) t e m p e r a t u r e c o e f f i c i e n t , ( m a / c ) fig.3 t emperature coef ficents nominal zener voltage(v) 1 0 1 1 0 0 1 0 0 1 0 l e a k a g e c u r r e n t ( u a ) fig.2 t ypical leakage current 0 9 0 0 . 0 0 0 0 1 2 0 3 0 5 0 6 0 8 0 7 0 4 0 1 0 0 . 0 0 0 1 0 . 1 1 0 0 0 0 . 0 0 1 0 . 0 1 1 0 0 1 0 1 normal zener voltage(v) 0 0 . 6 0 . 4 0 . 3 0 . 2 0 . 1 0 1 7 5 1 2 5 1 0 0 7 5 5 0 2 5 p o w e r d i s s i p a t i o n ( w ) fig.4 steady state power derating t emperature(c) 1 5 0 0 . 5 + 1 0 c 5 + 7 5 c + 2 5 c - 5 c +150c +25c -55c t a = 25c smd zener diode page 3 rev :a comchip t echnology co., l td. qw -jz002
smd zener diode page 4 rev :a comchip t echnology co., l td. b c d d d 2 d 1 e f p p 0 p 1 s o t - 2 3 s y m b o l a w w 1 ( m m ) ( i n c h ) 0 . 1 2 2 0 . 0 0 4 0 . 1 1 2 0 . 0 0 4 0 . 0 5 5 0 . 0 0 4 0 . 0 6 1 0 . 0 0 4 7 . 0 0 8 0 . 0 4 1 . 9 6 9 m i n . 0 . 5 1 2 0 . 0 0 8 s o t - 2 3 s y m b o l ( m m ) ( i n c h ) 0 . 0 6 9 0 . 0 0 4 0 . 1 3 8 0 . 0 0 2 0 . 1 5 7 0 . 0 0 4 0 . 1 5 7 0 . 0 0 4 0 . 0 7 9 0 . 0 0 2 0 . 3 1 5 0 . 0 1 2 0 . 5 6 7 m a x . 3 . 1 0 0 . 1 0 2 . 8 5 0 . 1 0 4 . 0 0 0 . 1 0 1 . 5 5 0 . 1 0 3 . 5 0 0 . 0 5 1 . 7 5 0 . 1 0 5 0 . 0 m i n . 1 3 . 0 0 . 2 0 1 . 4 0 0 . 1 0 4 . 0 0 0 . 1 0 2 . 0 0 0 . 0 5 8 . 0 0 0 . 3 0 1 4 . 4 m a x . 1 7 8 1 qw -jz002 reel t aping specification i n d e x h o l e o 1 2 0 t railer device leader 10 pitches (min) 10 pitches (min) ....... ....... ....... ....... ....... ....... ....... ....... start d e f b w a p p 0 p 1 d 1 d 2 d w 1 t c direction of feed end
smd zener diode page 5 rev :a comchip t echnology co., l td. suggested p ad layout a c b size (inch) 0.031 (mm) 0.80 1.90 2.02 0.075 0.080 sot -23 2.82 0.1 1 1 a b c d d standard packaging case t ype qty per reel (pcs) 3000 sot -23 reel size (inch) 7 qw -jz002
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