srt resistor technology srt resistor technology gmbh fon: ++49 / 09103 / 79520 ostlandstr. 31 fax: ++49 / 09103 / 5128 d-90556 cadolzburg mail to: webmaster@srt-restech.de inter net: www.srt-restech. power chip resistors type: CRW sizes: 1210, 1216, 2010, 2040, 2512, 4020 features: ? chip resistors in thickfilm ? contact areas nickel-barrier/ tinned ? rf ? versions with air-abrasive trimming ? improved pulse power rating untrimmed dimensions: l = length. b = width. d = thicknes s. c = width of wrap around (in mm) packaging: bulk in plastic bags or tubes ? minimum quantity 100 pieces per value blistertape acc. to iec 60286-3 ? minimum 1000 pieces per value reel diameter 180 mm or 330 mm ordering data: type ? value ? tolerance ? tcr ? packaging example: CRW 1216 100 r 1 % tk50 tape 180 mm if no requirements for tcr and taping are given, the standar d value (highest value in table) will be supplied and packaging is bulk sizes l b d c 1210 3.2 +0.2/-0.05 2.5 +0.2/-0.05 0.5 +0.2/-0.1 0.8 0.2 1216 3.2 +0.2/-0.05 4.1 +0.2/-0.05 0.5 +0.2/-0.1 0.8 0.2 2010 5.1 +0.2/-0.05 2.5 +0.2/-0.05 0.6 +0.2/-0.1 1.2 0.2 2040 5.1 +0.2/-0.05 10.2 +0.2/-0.05 0.6 +0.2/-0.1 1.2 0.2 2512 6.3 +0.2/-0.05 3.50 +0.2/-0.05 0.6 +0.2/-0.1 0.9 0.2 4020 10.2 +0.2 5.1 +0.2 0.6 +0.2/-0.1 0.9 0.2 l b c d issue 09/04 w i l l o w t e c h n o l o g i e s l t d . s h a w l a n d s c o u r t , n e w c h a p e l r o a d , l i n g f i e l d , s u r r e y , r h 7 6 b l , u n i t e d k i n g d om t e l . + 4 4 ( 0 ) 1 3 4 2 8 3 5 2 3 4 f a x . + 4 4 ( 0 ) 1 3 4 2 8 3 4 3 0 6 e - m a i l . s a l e s @ w i l l o w . c o . uk w e b . w w w . w i l l o w . c o . u k
srt resistor technology srt resistor technology gmbh fon: ++49 / 09103 / 79520 ostlandstr. 31 fax: ++49 / 09103 / 5128 d-90556 cadolzburg mail to: webmaster@srt-restech.de inter net: www.srt-restech.de power chip resistors type: CRW sizes: 1210, 1216, 2010, 2040, 2512, 4020 technical data ? depending on size: size 1210 1216 2010 2040 2512 (m) 4020 (m) power rating p 70 (w) 1) (p 155 = 0 w) 0.35 0.5 0.5 0.9 0.6 0.9 working voltage u_. u eff (v) trimmed untrimmed (tol. > 5%) 200 600 200 600 250 900 250 900 300 (1000) 1200 (2000) 500 (4000) 1500 (6000) ranges / tolerances / tcr 2) / vcr or1 ? 1r tc250 5/10/20% tc250 5/10/20% tc250 5/10/20% tc250 5/10/20% tc250 5/10/20% tc250 5/10/20% 1r ? < 100r tc100/250 1/?/20% tc100/250 1/?/20% tc100/250 1/?/20% tc100/250 1/?/20% tc100/250 1/?/20% tc100/250 1/?/20% 100r ? 100m tc50/100 1/.../20% tc50/100 1/.../20% tc50/100 1/.../20% tc50/100 1/.../20% tc50/100 0.5/.../20% tc50/100 0.5/.../20% 1) load acc. to din 45921 on pcb. limit ed by temperature of solder area (competitor data often too high) with suitable heat dissipation higher power rating is possible. diagrams for over temperatures available on request. 2) tc/50: temperature range + 25c...+ 125c zero-ohm-jumper: :< 50 mohm. tcr max. + 4000 m at 2512/4020: meander structure with higher working voltage in bracket. higher power dissipation, other size s and specifications on request. technical data ? general: temperature range -55c ... +155c climatic category acc. to iec 60068 55/155/56 solderability acc iec 60068 t2 -20. ta meth. 1 235c 2 s max. soldering temperature acc. ie c 60068 t2-20 tb m. 1a 260c 10 s long term stability 10r ? 100m <10r storage 125c/1000h <0.5% <1% storage 155c/1000h <1% <2% load p 70 /70c/1000h <1% <2% short term overload <0.25% <0.5% damp heat (56d/40c/96%) <0.5% <1% data not specified according cecc 40401-802 issue 09/04 issue 09/04 w i l l o w t e c h n o l o g i e s l t d . s h a w l a n d s c o u r t , n e w c h a p e l r o a d , l i n g f i e l d , s u r r e y , r h 7 6 b l , u n i t e d k i n g d om t e l . + 4 4 ( 0 ) 1 3 4 2 8 3 5 2 3 4 f a x . + 4 4 ( 0 ) 1 3 4 2 8 3 4 3 0 6 e - m a i l . s a l e s @ w i l l o w . c o . uk w e b . w w w . w i l l o w . c o . u k
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