1 www.semtech.com tclamp1201s low capacitance tvs for adsl interfaces protection products - transclamp ? ? ? ? ? description features package dimensions schematic & pin configuration revision 1/10/2008 a transclamp ? is a low capacitance tvs array designed to protect high speed data interfaces. this series has been specifically designed to protect sensitive compo- nents which are connected to data and transmission lines from overvoltage caused by esd (electrostatic discharge), cde (cable discharge events), and light- ning. these devices integrate low capacitance, surge-rated compensation diodes with high power transient voltage suppressors (tvs). the capacitance of the device is limited to 15pf maximum to ensure correct signal transmission on high-speed lines. the tclamp tm 1201s is in a 6-pin, rohs/weee compli- ant, sot-23 package. the leads are finished with lead- free matte tin. they are particularly well suited for applications where board space is at a premium. the tclamp1201s may be used to protect adsl inter- faces, multi-protocol serial transceivers, portable electronics, and wireless systems. applications mechanical characteristics ? adsl interfaces ? rs-232, rs-422 interfaces ? multi-protocol serial transceivers ? high-speed data lines ? wan/lan equipment ? integrated magnetics ? carrier class equipment ? customer premise equipment ? transient protection for high-speed data lines to iec 61000-4-2 (esd) 15kv (air), 8kv (contact) iec 61000-4-4 (eft) 40a (5/50ns) iec 61000-4-5 (lightning) , 20a (8/20 s) ? optimized for easy pcb layout ? low capacitance: 15pf 15pf 15pf 15pf 15pf ? operating voltage: 12v ? low clamping voltage ? small package saves board space ? solid-state technology ? jedec sot-23 6l package ? rohs/weee compliant ? nominal dimensions: 2.9 x 2.8mm ? molding compound flammability rating: ul 94v-0 ? marking: marking code ? packaging: tape and reel (top side view) 6 pin sot-23 package nominal dimensions in mm 12 2.8 1.0 2.9 1.6
2 ? 2008 semtech corp. www.semtech.com protection products tclamp1201s absolute maximum rating electrical characteristics (t=25 o c unless otherwise specified) g n i t a rl o b m y se u l a vs t i n u ) s 0 2 / 8 = p t ( r e w o p e s l u p k a e pp k p 0 0 5s t t a w ) s 0 2 / 8 = p t ( t n e r r u c e s l u p k a e pi p p 0 2a ) r i a ( 2 - 4 - 0 0 0 1 6 c e i r e p d s e ) t c a t n o c ( 2 - 4 - 0 0 0 1 6 c e i r e p d s e v d s e 0 3 0 3 v k e r u t a r e p m e t g n i t a r e p ot j 5 8 + o t 0 4 -c e r u t a r e p m e t e g a r o t st g t s 0 5 1 + o t 5 5 -c s 1 0 2 1 p m a l c t r e t e m a r a pl o b m y ss n o i t i d n o cm u m i n i ml a c i p y tm u m i x a ms t i n u e g a t l o v f f o - d n a t s e s r e v e rv m w r 2 1v e g a t l o v n w o d k a e r b e s r e v e rv r b i t a m 1 =3 . 3 1v t n e r r u c e g a k a e l e s r e v e ri r v m w r c 5 2 = t , v 2 1 =5a e g a t l o v g n i p m a l cv c i p p t , a 5 = p s 0 2 / 8 =9 1v e g a t l o v g n i p m a l cv c i p p t , a 0 2 = p s 0 2 / 8 =6 . 6 2v t n e r r u c e s l u p k a e pi p p t p s 0 2 / 8 =0 2a e c n a t i c a p a c n o i t c n u j 1 c j d n a s n i p o / i n e e w t e b d n u o r g v r z h m 1 = f , v 0 = 85 1f p note: 1) junction capacitance with pins 1 and 6 tied together and pins 3 and 4 tied together
3 ? 2008 semtech corp. www.semtech.com protection products tclamp1201s typical characteristics non-repetitive peak pulse power vs. pulse time power derating curve 0 10 20 30 40 50 60 70 80 90 100 110 0 25 50 75 100 125 150 ambient temperature - t a ( o c) % of rated power or i pp normalized junction capacitance vs. reverse voltage (line-to-ground) clamping voltage vs. peak pulse current pulse waveform 0.01 0.1 1 10 0.1 1 10 100 1000 pulse duration - t p (s) peak pulse power - p pk (kw) 0 10 20 30 40 50 60 70 80 90 100 110 0 5 10 15 20 25 30 time (s) percent of i pp e -t td = i pp /2 0 5 10 15 20 25 30 0 5 10 15 20 25 peak pulse current - i pp (a) clamping voltage - v c (v) waveform parameters: tr = 8 s td = 20 s 0.9 0.95 1 1.05 1.1 012345 reverse voltage - v r (v) c j (v r ) / c j (v r =0) f = 1 mhz typical insertion loss s21 (each line) start . 030 mhz 3 stop 000 . 000 000 mhz ch1 s21 log 6 db / ref 0 db 1: -.0853 db 800 mhz 2: -.10610 db 900 mhz 3: -1.7782 db 1.8 ghz 4: -11.489 db 2.5 ghz 5: -13.713 db 2.7 ghz 0 db -6 db -12 db -18 db -24 db -30 db -36 db 1 ghz 100 mhz 3 ghz 10 mhz 1 mhz 1 2 3 4 5
4 ? 2008 semtech corp. www.semtech.com protection products tclamp1201s applications information pin conf pin conf pin conf pin conf pin conf iguration (t iguration (t iguration (t iguration (t iguration (t op side vie op side vie op side vie op side vie op side vie w) w) w) w) w) device connection for metallic protection of high- speed data lines the tclamp1201s is designed to protect high-speed data lines from transient over-voltages which result from lightning and esd. the device is designed to protect one line in common mode (line-to-ground) or one line pair in metallic (line-to-line) mode. for metallic mode protection, the input of line 1 is con- nected at pin 1 and the output is connected at pin 6. likewise, the input of line 2 is connected at pin 3 and the output is connected at pin 4. for common mode protection, ground either pins 1 and 6 or pins 3 and 4. for proper operation in either configuration, pins 1 and 6 must be connected together and pins 3 and 4 must be connected together using the pcb trace. the ground connection should be made directly to the ground plane for best results. matte tin lead finish matte tin has become the industry standard lead-free replacement for snpb lead finishes. a matte tin finish is composed of 100% tin solder with large grains. since the solder volume on the leads is small com- pared to the solder paste volume that is placed on the land pattern of the pcb, the reflow profile will be determined by the requirements of the solder paste. therefore, these devices are compatible with both lead-free and snpb assembly techniques. in addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint.
5 ? 2008 semtech corp. www.semtech.com protection products tclamp1201s applications information - spice model tclamp1201s spice model pin 1 pin 6 pin 3 pin 4 s r e t e m a r a p e c i p s s 1 0 2 1 p m a l c t - 1 e l b a t r e t e m a r a pt i n u) s v t ( 1 d s ip m a5 1 - e 2 v bt l o v6 9 2 . 4 1 j vt l o v7 . 0 s rm h o3 2 . 0 v b ip m a3 - e 0 . 1 o j cd a r a f2 1 - e 2 9 . 0 t tc e s9 - e 1 4 5 . 2 m- -2 0 . 0 n- -1 . 1 g ev e1 1 . 1
6 ? 2008 semtech corp. www.semtech.com protection products tclamp1201s outline drawing - sot-23 6l land pattern - sot-23 6l .110 bsc .037 bsc detail aaa c seating ccc c 2x n/2 tips 2x e/2 6 see detail a1 a a2 bxn a .008 12 n e .060 .114 .063 .122 .010 - 6 a 0.20 1.60 3.10 2.80 bsc 0.95 bsc .069 1.50 2.90 .020 0.25 1.75 0.50 - ei l (l1) c 01 0.25 plane gage h 2.80 .110 bbb c a-b d 0 .008 - .004 .012 .003 (.024) .018 - .035 .000 .035 - - .045 0.10 0.20 10 0 - 10 1.15 (0.60) 0.45 .024 .009 0.30 0.08 .057 .051 .006 0.00 .90 0.90 0.22 0.60 - 0.15 1.45 1.30 - - 1.90 bsc .075 bsc a e1 d e b c plane d datums and to be determined at datum plane controlling dimensions are in millimeters (angles in degrees). dimensions "e1" and "d" do not include mold flash, protrusions 3. or gate burrs. notes: 1. 2. -a- -b- -h- side view nom inches dimensions l1 aaa bbb ccc 01 n dim c e e1 l e1 e d a1 a2 b a min millimeters max min nom max dimensions inches y z dim g p x c millimeters p (c) z y g .043 .141 .055 (.098) .037 .024 1.40 (2.50) 0.95 0.60 1.10 3.60 x dimensions inches y z dim g p x c millimeters this land pattern is for reference purposes only. consult your manufacturing group to ensure your company's manufacturing guidelines are met. notes: 1.
7 ? 2008 semtech corp. www.semtech.com protection products tclamp1201s r e b m u n t r a p r e p y t q l e e r l e e r e z i s t c t . s 1 0 2 1 p m a l c t0 0 0 , 3h c n i 7 ordering information tape and reel specification transclamp and tclamp are marks of semtech corporation marking device orientation in tape e p a t h t d i w ) x a m ( , bd1 de f k ) x a m ( p0 p2 p) x a m ( tw m m 8 m m 2 . 4 ) 5 6 1 . ( m m 1 . 0 + 5 . 1 m m 0 . 0 - m m 0 . 1 5 0 . 0 0 1 . 0 5 7 . 1 m m 5 0 . 0 5 . 3 m m m m 4 . 2 1 . 0 0 . 4 m m 1 . 0 0 . 4 m m 5 0 . 0 0 . 2 m m m m 4 . 0 m m 0 . 8 m m 3 . 0 + m m 1 . 0 - 0 a0 b0 k m m 5 0 . 0 - / + 3 2 . 3m m 5 0 . 0 - / + 7 1 . 3m m 5 0 . 0 - / + 7 3 . 1 user direction of feed note: lead finish is lead-free matte tin sss h c n a r b n a w i a t 0 8 3 3 - 8 4 7 2 - 2 - 6 8 8 : l e t fx a0 9 3 3 - 8 4 7 2 - 2 - 6 8 8 : h b m g d n a l r e z t i w s h c e t m e s h c n a r b n a p a j 0 5 9 0 - 8 0 4 6 - 3 - 1 8 : l e t 1 5 9 0 - 8 0 4 6 - 3 - 1 8 : x a f h c n a r b a e r o k tl e7 7 3 4 - 7 2 5 - 2 - 2 8 : f6 7 3 4 - 7 2 5 - 2 - 2 8 : x a ) . k . u ( d e t i m i l h c e t m e s 0 0 6 - 7 2 5 - 4 9 7 1 - 4 4 : l e t 1 0 6 - 7 2 5 - 4 9 7 1 - 4 4 : x a f e c i f f o i a h g n a h s t0 3 8 0 - 1 9 3 6 - 1 2 - 6 8 : l e 1 3 8 0 - 1 9 3 6 - 1 2 - 6 8 : x a f l r a s e c n a r f h c e t m e s 0 0 - 2 2 - 8 2 - 9 6 1 ) 0 ( - 3 3 : l e t 8 9 - 2 1 - 8 2 - 9 6 1 ) 0 ( - 3 3 : x a f f o y r a i d i s b u s d e n w o - y l l o h w a s i g a l a n o i t a n r e t n i h c e t m e s . a . s . u e h t n i s r e t r a u q d a e h s t i s a h h c i h w , n o i t a r o p r o c h c e t m e s h b m g y n a m r e g h c e t m e s 3 2 1 - 0 4 1 - 1 6 1 8 ) 0 ( - 9 4 : l e t 4 2 1 - 0 4 1 - 1 6 1 8 ) 0 ( - 9 4 : x a f contact information for semtech international ag
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