double-sided chip resistors dsc series two parallel resistance elements in a single chip excellent pulse withstand performance laser trimmed up to 0.5% tolerance enhanced working voltage enhanced power ratng ant-sulphur version available. resistors all pb-free parts comply with eu directve 2011/65/eu (rohs2) 2 1 5 2 0 1 0 2 6 0 2 1 5 . 1 5 7 . 0 3 3 . 0 w c 0 7 @ r e w o p 4 . 9 7 . 4 1 . 2 w c 5 2 @ r e w o p d a o l r e v o d n o c e s 2 s h p a r g e e s e c n a m r o f r e p e s l u p t r o h s 7 m 4 o t 0 r 1 s m h o e g n a r e c n a t s i s e r 5 , 1 : s e u l a v l l a , 5 . 0 : m 1 o t r 0 1 % e c n a r e l o t 0 0 5 0 0 4 0 0 2 v v e l 0 0 1 : r 0 1 > 0 0 2 : r 0 1 < c / m p p r c t 5 5 1 + o t 5 5 - c e r u t a r e p m e t g n i t a r e p o 0 0 5 v e g a t l o v d n a t s h t i w c i r t c e l e i d 0 5 0 8 0 6 1 w / c e c n a d e p m i l a m r e h t pad & trace ar ea for rated power* mm 2 0 0 1 0 6 0 5 0805 0603 0.25 0.125 0.8 75 302 30 1.6 1r0 to 1m0 210 150 40 r e d r o l a i c e p s o t s e u l a v r e h t o - d e r r e f e r p 6 9 r o 4 2 e s e u l a v double-side d chip resistor s d s c s e rie s t wo parallel r esistance elements in a single chip excellent pulse withstand performance laser trimmed up to 0.5% tolerance enhanced working voltage enhanced power rating pb-fr ee terminations general note w elwyn components r eserves the right to make changes in pr oduct specification without notice or liability . all information is subject to w elwyn? s own data and is consider ed accurate at time of going to print. ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com e lectrica l d a t a 04. 08 a subsidiary of tt electr onics plc w el wyn components dimensions (mm) & w eight (g) l w t max a b min c wt. 1206 3.20.4 1.60.2 0.7 0.40.2 1.7 0.40.15 0.020 0805 2.00.3 1.250.2 0.7 0.30.15 0.9 0.30.15 0.012 0603 1.50.1 0.80.1 0.55 0.30.15 0.6 0.30.15 0.002 2010 5.10.3 2.50.2 0.8 0.60.3 3.0 0.60.25 0.036 2512 6.50.3 3.20.2 0.8 0.60.3 4.4 0.60.25 0.055 physica l d a t a _ * recommended minimum pad & adjacent trace ar ea for each termination for rated power dissipation on fr4 pcb construction thick film r esistor material, overglaze and organic pr otection ar e scr een printed on a 96% alumina substrate. w rap-ar ound termi nations have an electr oplated nickel barrier and solderable coating, this ensur es excellent ?leach? r esistance pr operties and s olderability . marking components ar e not marked. reels ar e marked with type, value, tolerance, date code and quantity . solvent resistance the body pr otection is r esistant to all normal industrial cleaning solvents suitable for printed cir cuits. t w a a b l w rap-ar ound terminations (3 faces) c 11.16 general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc http://www.ttelectronics.com/resistors bi technologies irc welwyn
double s i ded c hip r e s i sto r s d s c s e rie s ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 07. 08 w el wyn components p e rform ance d a t a pulse p e rform anc e d a t a lightning surge resistors are tested in accor dance with iec 60 115-1 using both 1.2/50s and 10/700s pulse shapes. 10 pulses are applied. the limit of acceptance is a shift in resistance of less than 1% from the initial value. 1 0 100 1 , 000 10, 000 1 1 0 100 1 , 000 10, 000 100, 000 1 , 000, 0 0 0 10, 000, 0 0 0 p e a k v ol t a g e ( v ) v a lue ( o h ms) 1 . 2 / 50s l i g h t n i n g s u r g e 0 8 0 5 1 2 0 6 2 0 1 0 2 5 1 2 1 0 100 1 , 000 10, 000 1 0 100 1 , 000 10, 000 100, 000 1 , 000, 0 0 0 10, 000, 0 0 0 p ea k v olt a g e ( v ) v a lue ( oh m s ) 10/ 700s l i ght n i ng s u r g e 0 8 0 5 1 2 0 6 2 0 1 0 2 5 1 2 double sided chip resistors dsc series maximum typical load at rated power: 1000 hours at 70c r% 1 0.25 deratng from rated power at 70c r% zero at 155c overload: 6.25 x rated power for 2 seconds 1 0.1 shelf life test: 12 months at room temperature r% 0.1 0.02 dry heat: 1000 hours at 155c r% 1 0.2 long term damp heat r% 1 0.25 temperature rapid change r% 0.25 0.05 resistance to sulphur-bearing gas (as version only): astm-b-809 0.25 0.05 resistance to solder heat r% 0.25 0.05 2512 2010 1206 0805 0603 2512 2010 1206 0805 0603 11.16 general note ng gggg letron l bi technologies irc welwyn
double sided chip resistors dsc series d ouble side d c hip resistor s d s c s e rie s ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 07.08 single pulse the single impulse graph is the r esult of 50 impulses of r ectangular shape applied at one-minute intervals. the limit of acceptance was a shift in r esistance of less than 1% fr om the initial value. continuous load due to repetitive pulses the continuous load graph was obtained by applying r epetitive r ectangular pulses wher e the pulse period was adjusted so that the average power dissipated in the r esistor was equal to its rated power at 70c. again the limit of acceptance was a shift in r esistance of less than 1% fr om the initial value. 100 1 , 000 10, 000 1 1 0 100 1 , 000 10, 000 100, 000 1 , 000, 0 0 0 10, 000, 0 0 0 p ea k v o l t a g e ( v ) v a lue ( oh m s ) d s c2 512 - bel l c o r e g r1 089 l i g h t n i n g sur g e 2 / 1 0 s 1 0 / 1 0 0 0 s 1 1 0 100 1000 0 . 0001 0 . 001 0 . 0 1 0 . 1 1 p e a k p o w e r ( w ) p u l s e d u r a t ion ( s ) s i n g l e pu l s e 0 8 0 5 1 2 0 6 2 0 1 0 2 5 1 2 0 . 1 1 1 0 100 1000 0 . 0001 0 . 001 0 . 0 1 0 . 1 1 p e a k p o w e r ( w ) p u l s e d u r a t ion ( s ) co n t i nuo u s pu l s es 0 8 0 5 1 2 0 6 2 0 1 0 2 5 1 2 2512 2010 1206 0805 0603 2512 2010 1206 0805 0603 11.16 general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc http://www.ttelectronics.com/resistors bi technologies irc welwyn
double sided chip resistors dsc series double s i ded c hip r e s i sto r s d s c s e rie s ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 07. 08 w el wyn components t herma l perfo rma nce dat a ambient t emperatur e/ c % of rated power 125 100 75 50 25 0 -15 70 155 t emperatur e derating curve p ackagi n g 0603, 0805 and1206 dsc series r esistors ar e supplied on 8mm carrier tape and 7 inch r eels as per iec 286-3, quantity per r eel; 3000. 2010 and 2512 dsc series r esistors ar e supplied on 12mm carrier tape and 7 inch r eels as per iec 286-3, quantity per r eel; 2010 : 3000pcs; 2512 : 1800pcs. reels of 1000pcs ar e available on r equest. 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 0 0 . 5 1 1 . 5 t e m p e r a t u r e r i s e ( c ) p ow e r d i ssipa t i on ( w ) t e mp e r a t u r e ris e cu r v e s 0 8 0 5 1 2 0 6 2 0 1 0 2 5 1 2 packaging 0603, 0805 and 1206 resistor s are supplied on 8mm carrier tape and 2010 and 2512 resistors are supplied on 12mm carrier tape, all on 7 inch reels as per iec 286-3. o rderi n g p r oce d u re double s i ded c hip r e s i sto r s d s c s e rie s ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 07. 08 w el wyn components appl i c ati o n n o t e s dsc r esistors ar e ideally suited for handling by automatic methods due to their r ectangular shape and the small dimensional tolerances. electrical connection to a ceramic substrate or to a printed cir cuit boar d can be made by r eflow or wave soldering of wrap-ar ound terminations. w rap-ar ound terminations pr ovide good leach pr operties and ensur e r eliable contact. due to the r obust construction, the dsc can be immersed in the solder bath for 30 seconds at 260c. this enables the r esistor to be mounted on one side of a printed cir cuit boar d and wir e-leaded components applied on the other side. dsc is compatible with typical pb-fr ee soldering materials and temperatur e pr ofiles. dsc r esistors themselves can operate at a maximum temperatur e of 155 c. for solder ed r esistors, the joint temperatur e should not exceed 110c. this condition is met when the stated power levels at 70 c and r ecommended pad and trace ar eas ar e used. pad and trace area is defined as the total area of the solder pad plus all copper trace within two squares of the edge of the solder pad. allowance should be made if smaller ar eas of copper ar e used. 7. ordering procedure C replace with below example: dsc2512 - 10kft18 (dsc2512, 10 kilohms 1%, pb - free) 8. update header & footer branding d s c 2 5 1 2 - 1 0 k f t 1 8 1 2 3 4 5 6 1 2 3 4 5 6 type size anti - sulphur value tolerance termination & packing dsc 0603 omit for standard e24 = 3/4 characters d 0. 5% standard pb - free finish 0805 as anti - sulphur e96 = 3/4 characters f 1% t5 0603 5000/reel standard 1206 r = ohms j 5% t3 0805 3000/reel standard 2010 k = kilohms 1206 2512 m = megohms 2010 t1 8 2512 1800/reel standard t1 all sizes 1000/reel available snpb finish pb all sizes standard quantities as for pb - free 11.16 general note 7 7 ( o h f w u r q l f v u h v h u y h v w k h u l j k w w r p d n h f k d q j h v l q s u r g x f w v s h f l f d w l r q z l w k r x w q r w l f h r u o l d e l o l w \ $ o o l q i r u p d w l r q l v v x e m h f w w r 7 7 ( o h f w u r q l f v a r z q g d w d d q g l v f r q v l g h u h g d f f x u d w h d w w l p h r i j r l q j w r s u l q w ? tt electronics plc k w w s z z z w w h o h f w u r q l f v f r p u h v l v w r u v bi technologies irc welwyn
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