data shee t surge chip resistors sr series 20%, 10%, 5% sizes 0805/1206/1218/2010/2512 rohs compliant & halogen free product specification ? mar 18, 2011 v.1
chip resistor surface mount w ww.yageo.com mar 18, 2011 v.1 product specification 2 8 series sr 0805/1206/1218/2010/2512 ordering information - global part number part number is identified by the seri es name, size, tolerance, packaging type, temperature coefficient, taping reel and resistance value. scope this specification describes SR0805 to sr2512 chip resistors with lead-free terminations made by thick film process. applications telecommunications power supplies features superior to sr series in pulse withstanding voltage and surge withanding voltage. msl class: msl 1 halogen free epoxy rohs compliant - products with lead-free terminations meet rohs requirements - pb-glass contained in electrodes, resistor element and glass are exempted by rohs reduce environmentally hazardous waste high component and equipment reliability o rdering example the ordering code for an SR0805 chip resistor, value 10 k x with 5% tolerance, supplied in 7-inch tape reel is: SR0805jr-0710kl. global part number sr xxxx x x x xx xxxx l ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 7 ) ( 1 ) size 0805 / 1206 / 1218 / 2010 / 2512 ( 2 ) tolerance j = 5% k = 10% m = 20% ( 3 ) packaging type r = paper taping reel k = embossed taping reel ( 4 ) temperature coefficient of resistance ? = based on spec. ( 5 ) taping reel 07 = 7 inch dia. reel 10 = 10 inch dia. reel 13 = 13 inch dia. reel ( 6 ) resistance value 1 ? r 100 k ? there are 2~4 digits indicated the resistance value. letter r/k/m is decimal point, no need to mention the last zero after r/k/m, e.g.1k2, not 1k20. detailed coding rules of resistance are shown in the table of ?resistance rule of global part number?. (7) default code letter l is the system default code for ordering only. (note) resistance rule of global part number resistance coding rule example xrxx (1 to 9.76 ? ) 1r = 1 ? 1r5 = 1.5 ? 9r76 = 9.76 ? xxrx (10 to 97.6 ? ) 10r = 10 ? 97r6 = 97.6 ? xxxr (100 to 976 ? ) 100r = 100 ? xkxx (1 to 9.76 k ? ) 1k = 1,000 ? 9k76 = 9760 ? xxkx (10 to 97.6 k ? ) 10k = 10,000 ? 97k6= 976,000 ? xxxk (100 k ? ) 100k = 100,000 ?
chip resistor surface mount w ww.yageo.com mar 18, 2011 v.1 product specification 3 8 series sr 0805/1206/1218/2010/2512 marking sr1218 e-24 series: 3 digits first two digits for significant figu re and 3rd digit for number of zeros SR0805 / sr1206 / sr2010 / sr2512 e-24 series: 3 digits first two digits for significant figu re and 3rd digit for number of zeros note for further marking information, please refe r to data sheet ?chip resistors marking?. fig. 2 value=10 k ? ynsc001 03 overcoat protective glass resistive layer inner electrode termination (ni/matte tin) ceramic substrate marking layer inner electrode ynsc095 fig. 3 chip resistor outlines o o u u t t l l i i n n e e s s construction the resistor is constructed on top of a high-grade ceramic body. internal metal electrodes are added at each end and connected by a resistive glaze. the resistive glaze is covered by a lead-free glass. the composition of the glaze is adjusted to give the approximately required resistance value. the whole element is covered by a protective overcoat. the top of overcoat is marked with the resistance value. finally, the two external te rminations (ni/matte tin) are added, as shown in fig.3. ynsc09 6 SR0805/1206/2010/2512 sr1218 side view for all type i 1 i 2 i 1 l l h w w fig. 4 chip resistor dimensions for dimension, please refer to table 1 type l (mm) w (mm) h (mm) i 1 (mm) i 2 (mm) SR0805 2.00 0.1 0 1.25 0.1 0 0.50 0.1 0 0.35 0.2 0 0.35 0.2 0 sr1206 3.10 0.1 0 1.60 0.1 0 0.55 0.1 0 0.45 0.2 0 0.40 0.2 0 sr1218 3.10 0.1 0 4.60 0.1 0 0.55 0.1 0 0.45 0.2 0 0.40 0.2 0 sr2010 5.00 0.1 0 2.50 0.15 0.55 0.1 0 0.55 0.15 0.50 0.2 0 sr2512 6.35 0.1 0 3.10 0.15 0.55 0.1 0 0.60 0.2 0 0.50 0.2 0 table 1 dimensions fig. 1 value=10 k ? ynsc099
chip resistor surface mount w ww.yageo.com mar 18, 2011 v.1 product specification 4 8 series sr 0805/1206/1218/2010/2512 characteristics type power resistance range operating temperature range max. working voltage max. overload voltage dielectric withstanding voltage temperature coefficient of resistance SR0805 1/8 w 150 v 300 v 300 v sr1206 1/4 w 150 v 400 v 500 v sr1218 1 w 200 v 400 v 500 v sr2010 3/4 w 200 v 400 v 500 v sr2512 1 w e24 5%, 10%, 20% 1 ? r 100 k ? ?55 c to +155 c 200 v 400 v 500 v 200 ppm/c electrical characteristics table 2 footprint and soldering profiles recommended footprint and soldering profiles, please refer to data sheet ?chip resistors mounting?. packing style and p a ckaging quantity packing style reel dimension SR0805 sr1206 sr1218 sr2010 sr2512 paper taping reel (r) 7" (178 mm) 5,000 5,000 --- --- --- 10" (254 mm) 10,000 10,000 --- --- --- 13" (330 mm) 20,000 20,000 --- --- --- embossed taping reel (k) 7" (178 mm) --- --- 4,000 4,000 4,000 note 1. for paper/embossed tape and reel sp ecification/dimensions, please refer to data sheet ?chip resistors packing?. table 3 packing style and packaging quantity
chip resistor surface mount w ww.yageo.com mar 18, 2011 v.1 product specification 5 8 series sr 0805/1206/1218/2010/2512 mlb206_2 70 100 55 50 t amb ( c) o (%p ) rated 0 0 50 100 155 p handbook, halfpage fig. 4 maximum dissipation (p max ) in percentage of rated power as a function of the operating ambient temperature (t amb ) functional description o o p p e e r r a a t t i i n n g g t t e e m m p p e e r r a a t t u u r r e e r r a a n n g g e e range: ?55 c to +155 c p p o o w w e e r r r r a a t t i i n n g g each type rated power at 70 c: SR0805 = 1/8 w (0.125w) sr1206 = 1/4 w (0.25w) sr1218 = 1 w sr2010 = 3/4w (0.75w) sr2512 = 1 w r ated voltage the dc or ac (rms) continuous working voltage corresponding to the rated power is determined by the following formula: v = ( p x r ) where v = continuous rated dc or ac ( rms ) working voltage ( v ) p = rated power ( w ) r = resistance value ( x ) p p u u l l s s e e l l o o a a d d b b e e h h a a v v i i o o r r 10 3 10 4 1 10 10 2 110 1 p max (w) 10 2 10 3 10 2 10 1 pulse limiting electric power pulse duration t i (ms) 0805 ynsc093 1206 1218 2010 2512 fig. 5 pulse-load behavio r
chip resistor surface mount w ww.yageo.com mar 18, 2011 v.1 product specification 6 8 series sr 0805/1206/1218/2010/2512 tests and requirements test test method procedure requirements at +25/?55 c and +25/+125 c refer to table 2 temperature coefficient of resistance (t.c.r.) mil-std-202 method 304 formula: t.c.r= ------------------------- 1 0 6 (ppm/c) where t 1 =+25 c or specified room temperature t 2 =?55 c or +125 c test temperature r 1 =resistance at reference temperature in ohms r 2 =resistance at test temperature in ohms short time overload iec60115-1 4.13 2.5 times of rated voltage or maximum overload voltage whichever is less for 5 sec at room temperature (2.0%+0.05 ? ) high temperature exposure iec 60068-2-2 1,000 hours at t a = 155 c 5 c, unpowered (3.0%+0.05 ? ) humidity iec 60115-1 4.24.8 steady state for 1,000 hours at 40 c / 95% r.h. rcwv applied for 1.5 hours on and 0.5 hour off (3.0%+0.05 ? ) life iec 60115-1 4.25.1 1,000 hours at 702 c, derated voltage applied fo r 1.5 hours on, 0.5 hour off, still-air required (3.0%+0.05 ? ) resistance to soldering heat iec 60068-2-58 condition b, no pre-heat of samples lead-free solder, 2605 c, 101 seconds immersion time procedure 2 for smd: devices fluxed and cleaned with isopropanol (1.0%+0.05 ? ) no visible damage temperature cycling jesd22-a104c -55/+125 c for 1 cycle per hour, with 5 cycles. devices mounted (1.0%+0.05 ? ) table 4 test condition, procedure and requirements r 2 ?r 1 r 1 (t 2 ?t 1 )
chip resistor surface mount w ww.yageo.com mar 18, 2011 v.1 product specification 7 8 series sr 0805/1206/1218/2010/2512 test test method procedure requirements solderability - wetting j-std-002 electrical test not required magnification 50x smd conditions: immerse the specimen into the solder pot at 2353c for 20.5 seconds. well tinned ( 95% covered) no visible damage board flex iec 60068-2-21 iec 60115-1 4.33 chips mounted on a 90mm glass epoxy resin pcb (fr4) bending for 0805: 3 mm 1206 and above: 2 mm holding time: minimum 60 seconds (1.0%+0.05 ? )
chip resistor surface mount w ww.yageo.com mar 18, 2011 v.1 product specification 8 8 series sr 0805/1206/1218/2010/2512 revision history ? yageo reserves all the rights for revising the content of this datasheet without furt her notification, as long as the product s are unchanged. any product change will be announced by pcn.? "the reimbursement is limited to the value of the products." revision date change notification description version 1 mar 18, 2011 - - change to dual bran d datasheet that describes SR0805 to sr2512 with rohs compliant - define global part number version 0 oct 19, 2004 - -
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