welwyn components general note welwyn components reserves the right to make changes in product specification without notice or liability. all information is subject to welwyns own data and is considered accurate at time of going to print. a subsidiary of tt electronics plc sot143 series issue june 2006 ? welwyn components limited bedlington, northumberland ne22 7aa, uk telephone: +44 (0) 1670 822181 ? facsimile: +44 (0) 1670 829465 ? email: info@welwyn-tt.com ? website: www.welwyn-tt.com sot143 4-pin smt package ? ratio tolerances to 0.05% ? small, industry standard package ? standard and custom circuits available ? standard sn/pb and pb-free terminations available sot143 series physical data (mm) power derating curve 25 70 125 100 50 10 % of rated p o wer t emperature in c specifcations n o i t a p i s s i d r e w o p e g a k c a p c 0 7 @ s t t a w 5 2 . 0 n o i t a p i s s i d r e w o p t n e m e l e c 0 7 @ s t t a w 1 . 0 g n i t a r e g a t l o v m u m i x a m s t l o v 0 0 1 e g n a r e r u t a r e p m e t g n i t a r e p o c 5 2 1 + o t c 5 5 - e t u l o s b a t n e i c i f f e o c e r u t a r e p m e t c / m p p 5 2 o t g n i k c a r t t n e i c i f f e o c e r u t a r e p m e t c / m p p 2 ......................................................................... ......................................................................... ......................................................................... ......................................................................... ......................................................................... characteristic v alue 2.92 0.1 0.1 ma x 1.0 0.1 0.43 mi n 0.51 ma x 0.56 ref . 0.0 76 mi n 0.178 ma x 0.56 0.05 1.91 bs c 2.36 0.25 1.30 0.1 0.84 0.1 1 2 3 4 1.0 re f. 1.02 mi n 1.19 max . 1.91 re f. 2.21 re f. 1.45 re f. 0.79 min . 0.635 re f. 1 2 3 4 recommended pa d l ay ou t
sot143 series issue june 2006 welwyn components ? welwyn components limited bedlington, northumberland ne22 7aa, uk telephone: +44 (0) 1670 822181 ? facsimile: +44 (0) 1670 829465 ? email: info@welwyn-tt.com ? website: www.welwyn-tt.com sot143 4-pin smt package schematic / circuit detail schematics 1 2 3 4 r1 schemati c d (bussed) r2 r3 r2 1 2 4 3 schemati c c (isolated) r3 1 2 4 3 schemati c b (series) r2 r3 r1 1 2 4 3 schematic a (series) r2 r3 r1 circuit details for schematic a schematic/circuit code r1 ( w ) r2 ( w ) r3 ( w ) a001 500.0 50.0k 50.0k a002 10.0k 10.0k 10.0k a003 900.0 100.0 9.0k a004 500.0 48.0k 48.0k a005 200.0 40.0k 40.0k circuit details for schematic c schematic/circuit code r1 ( w ) r2 ( w ) r3 ( w ) c001 n/a 10.0k 10.0k c002 n/a 1.0k 1.0k c003 n/a 9.0k 1.0k c004 n/a 750.0 750.0 c005 n/a 40.0k 40.0k c006 n/a 33.0k 330.0 c007 n/a 2.0k 2.0k c008 n/a 10.0k 2.0k c009 n/a 10.0k 200.0 c010 n/a 2.1k 10.0k circuit details for schematic b schematic/circuit code r1 ( w ) r2 ( w ) r3 ( w ) b001 10.0k 10.0k 10.0k b002 900.0 100.0 9.0k b003 1.0k 10.0k 10.0k circuit details for schematic d schematic/circuit code r1 ( w ) r2 ( w ) r3 ( w ) d001 121.0 1.33k 1.0k d002 2.0k 1.0k 2.0k d003 50.0k 5.0k 5.0k d004 5.4k 5.4k 27.5k d005 40.0k 40.0k 40.0k d006 10.0k 10.0k 20.0k d007 20.0k 20.0k 20.0k
sot143 - 01 - a 002 - f b style absolute tcr code 00 = 250ppm/c; 01 = 100ppm/c 02 = 50ppm/c; 03 = 25ppm/c schematic code a, b, c, d circuit number see schematic/circuit detail tables absolute tolerance code k = 10%; j = 5%; g = 2%; f = 1% d = 0.5%; c = 0.25%; b = 0.1% ratio tolerance code g = 2%; f = 1%; d = 0.5% c = 0.25%; b = 0.1%; a = 0.05% finish blank = pb-free pb= snpb sot143 series issue june 2006 irc advanced film division ? welwyn components limited bedlinton northumerland n22 aa telephone 44 () 1 2211 acsimile 44 () 1 24 mail infowelwynttcom wesite wwwwelwynttcom sot143 4-pin smt package ordering procedure environmental data 1 0 4 3 8 - f r p - l i m o t t s e t l a t n e m n o r i v n e t i m i l h c i t s i r e t c a r a h c m u m i x a m e c n a m r o f r e p l a c i p y t k c o h s l a m r e h t % 5 . 0 % 1 . 0 % 2 0 . 0 g n i n o i t i d n o c r e w o p % 5 . 0 % 1 . 0 % 3 0 . 0 d a o l r e v o e m i t t r o h s % 1 . 0 % 1 . 0 % 2 0 . 0 e r u s o p x e e r u t a r e p m e t h g i h % 2 . 0 % 1 . 0 % 5 0 . 0 n o i t a r e p o e r u t a r e p m e t w o l % 1 . 0 % 1 . 0 % 3 0 . 0 e c n a t s i s e r e r u t s i o m % 4 . 0 % 1 . 0 % 3 0 . 0 e f i l % 5 . 0 % 1 . 0 % 5 0 . 0 t a e h r e d l o s o t e c n a t s i s e r % 1 . 0 % 5 0 . 0 % 2 0 . 0 h t g n e r t s l a n i m r e t % 5 2 . 0 % 1 . 0 % 2 0 . 0 ............................................................................................................................... ...................... ............................................................................................................................... ...................... ............................................................................................................................... ...................... ............................................................................................................................... ...................... ............................................................................................................................... ...................... ............................................................................................................................... ...................... ............................................................................................................................... ...................... ............................................................................................................................... ...................... ............................................................................................................................... ...................... for additional information or to discuss your specific requirements, please contact our applications team
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