data shee t general purpose chip resistors rc1218 5%, 1% rohs complian t product specification ? jul 15, 2008 v.2 supersedes date of mar. 06, 2003
chip resistor surface mount w ww.yageo.com j ul 15, 2008 v.2 product specification 2 8 series rc 1218 (rohs compliant) y y a a g g e e o o b b r r a a n n d d o o r r d d e e r r i i n n g g c c o o d d e e global part number ( preferred ) rc1218 x k - xx xxxx l ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 1 ) tolerance f = 1% j = 5% (for jumper ordering, use code of j) ( 2 ) packaging type k = embossed taping reel ( 3 ) temperature coefficient of resistance ? = base on spec ( 4 ) taping reel 07 = 7 inch dia. reel ( 5 ) resistance value there are 2~4 digits indicated the resistor 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 resistance rules show in table of ?resistance rule of global part number?. (6) optional code l = optional symbol (note) ordering information - global part number & 12nc both part numbers are identified by the series, size, tolerance, packing type, temperature coefficient, taping reel and resistance value. scope this specification describes rc1218 series chip resistors with lead-free terminations made by thick film process. applications all general purpose application features rohs compliant - products with lead free terminations meet rohs requirements - pb-glass contained in electrodes - resistor element and glass are exempted by rohs reducing environmentally hazardous wastes high component and equipment reliability saving of pcb space none forbidden-materials used in products/production halogen free epoxy o rdering example the ordering code of a rc1218 chip resistor, value 56 x with 1% tolerance, supplied in 7-inch tape reel is: rc1218fk-0756r(l). note 1. all our rsmd products meet rohs compliant. "lfp" of the internal 2d reel label mentions "lead free process" 2. on customized label, "lfp" or specific symbol printed and the optional "l" at the end of global part number / 12nc can be added (both are on customer request) resistance rule of global part number resistance code rule example 0r 0r = jumpe r 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 ? xmxx (1 to 9.76 m ? ) 1m = 1,000,000 ? 9m76= 9,760,000 ?
chip resistor surface mount w ww.yageo.com j ul 15, 2008 v.2 product specification 3 8 series rc 1218 (rohs compliant) p p h h y y c c o o m m p p b b r r a a n n d d o o r r d d e e r r i i n n g g c c o o d d e e s s both global part number (preferred) and 12nc (t raditional) codes are acceptable to order phycomp brand products. global part number ( preferred ) for detailed information of global part number an d ordering example, please refer to page 2. resistance decade (3) last digit 0.01 to 0.0976 x 0 0.1 to 0.976 x 7 1 to 9.76 x 8 10 to 97.6 x 9 100 to 976 x 1 1 to 9.76 k x 2 10 to 97.6 k x 3 100 to 976 k x 4 1 to 9.76 m x 5 10 to 97.6 m x 6 example: 0.02 x = 0200 or 200 0.3 x = 3007 or 307 1 x = 1008 or 108 33 k x = 3303 or 333 10 m x = 1006 or 106 last digit of 12nc (1) the resistors have a 12-digit ordering code starting with 2322. (2) the subsequent 4 or 5 digits indicate the resistor tolerance and packaging. (3) the remaining 4 or 3 digits represent the resistance value with the last digit indicating the multiplier as shown in the table of ?last digit of 12nc?. (4) "l" is optional symbol (note) . o rdering example the ordering code of a prc201 resistor, value 56 x with 1% tolerance, supplied in tape of 4,000 units per reel is: 232273575609(l) or rc1218fk-0756r(l). note 1. all our rsmd products are rohs compliant. "lfp" of the internal 2d reel label mentions "lead free process" 2. on customized label, "lfp" or specific symbol pr inted and the optional "l" at the end of global part number / 12nc can be added (both are on customer request) 12nc code 2322 xxx xx xxx l (1) (2) (3) ( 4 ) embossed tape on reel (units) (2) type/ 1218 start in (1) tol. (%) resistance range 4,000 prc201 2322 5% 1 to 1 m ? 735 64xxx prc201 2322 1% 1 to 1 m ? 735 7xxxx jumper 2322 - 0 ? 735 90007
chip resistor surface mount w ww.yageo.com j ul 15, 2008 v.2 product specification 4 8 series rc 1218 (rohs compliant) construction the resistor is constructed on top of a high-grade ceramic body. internal metal electrodes are added on each end to make the contacts to the thick film resistive element. the composition of the resistive element is a noble metal imbedded into a glass and covered by a second glass to prevent environment influences. the resistor is laser trimmed to the rated resistance value. the resistor is covered with a protective epoxy coat, finally the two external terminations (matte tin on ni- barrier) are added. see fig.3 dimensions type rc1218 l (mm) 3.10 0.10 w (mm) 4.60 0.10 h (mm) 0.55 0.10 i 1 (mm) 0.45 0.20 i 2 (mm) 0.40 0.20 table 1 overcoat primary glass layer resistive layer (jumper chip is a conductor) inner electrode termination(ni/matte tin) ceramic substrate h i 2 ynsc066 overcoat w l i 1 marking layer o o u u t t l l i i n n e e s s for dimension see table 1 fig. 3 chip resistor outlines marking rc1218 e-24 series: 3 digits first two digits for significant figu re and 3rd digit for number of zeros both e-24 and e-96 series: 4 digits first three digits for significant figu re and 4th digit for number of zeros for further marking information, please see special data sheet ?chip resistors marking?. fig. 2 value=10 k ? fig. 1 value=100 ? ynsc023 101 ynsc024 1000
chip resistor surface mount w ww.yageo.com j ul 15, 2008 v.2 product specification 5 8 series rc 1218 (rohs compliant) electrical characteristics characteristics rc1218 1 w operating temperature range ?55 c to +155 c maximum working voltage 200 v maximum overload voltage 500 v dielectric withstanding voltage 500 v 5% (e24) 1 ? to 1 m ? 1% (e24/e96) 1 ? to 1 m ? resistance range zero ohm jumper < 0.02 ? 1 ? r 10 ? 200 ppm/c temperature coefficient 10 ? < r 1 m ? 100 ppm/c rated current 6 a jumper criteria maximum current 10 a footprint and soldering profiles for recommended footprint and soldering profiles, please see the special data sheet ?chip resistors mounting?. table 2 packing style and p a ckaging quantity product type packing style reel dimension quantity per reel rc1218 embossed taping reel (k) 7" (178 mm) 4,000 units note 1. for embossed tape and reel specification/dimensions, please see the special data sheet ?packing? document. table 3 packing style and packaging quantity mlb206_2 70 100 55 50 t amb ( c) o (%p ) rated 0 0 50 100 155 p handbook, halfpage functional description p p o o w w e e r r r r a a t t i i n n g g rc1218 rated power at 70c is 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) or max. working voltage whichever is less where v=continuous rated dc or ac (rms) working voltage (v) p=rated power (w) r=resistance value ( x ) fig. 4 maximum dissipation (p) in percentage of rated power as a function of the operating ambient temperature (t amb )
chip resistor surface mount w ww.yageo.com j ul 15, 2008 v.2 product specification 6 8 series rc 1218 (rohs compliant) tests and requirements test test method procedure requirements life/ operational life/ endurance mil-std-202g-method 108a iec 60115-1 4.25.1 jis c 5202-7.10 1,000 hours at 705 c applied rcwv 1.5 hours on, 0.5 hour off, still air required (2%+0.05 ? ) <100 m ? for jumper high temperature exposure/ endurance at upper category temperature mil-std-202g-method 108a iec 60115-1 4.25.3 jis c 5202-7.11 1,000 hours at maximum operating temperature depending on specification, unpowered no direct impingement of forced air to the parts tolerances: 1253 c (1%+0.05 ? ) <50 m ? for jumper moisture resistance mil-std-202g-method 106f iec 60115-1 4.24.2 each temperature / humidity cycle is defined at 8 hours (method 106f), 3 cycl es / 24 hours for 10d with 25 c / 65 c 95% r.h, without steps 7a & 7b, unpowered parts mounted on test-boards, without condensation on parts measurement at 242 hours after test conclusion (2%+0.05 ? ) <100 m ? for jumper thermal shock mil-std-202g-method 107g -55/+125 c note: number of cycles required is 300. devices unmounted maximum transfer time is 20 seconds. dwell time is 15 minutes. air ? air (0.5%+0.05 ? ) for 10 k ? to 10 m ? (1%+0.05 ? ) for others <50 m ? for jumper short time overload mil-r-55342d-para 4.7.5 iec60115-1 4.13 2.5 times rcwv or maximum overload voltage whichever is less for 5 sec at room temperature (2%+0.05 ? ) <50 m ? for jumper no visible damage board flex/ bending iec60115-1 4.33 device mounted on pcb test board as described, only 1 board bending required 3 mm bending bending time: 605 seconds ohmic value checked during bending (1%+0.05 ? ) <50 m ? for jumper no visible damage table 4 test condition, procedure and requirements
chip resistor surface mount w ww.yageo.com j ul 15, 2008 v.2 product specification 7 8 series rc 1218 (rohs compliant) test test method procedure requirements solderability - wetting ipc/jedecj-std-002b test b iec 60068-2-58 electrical test not required magnification 50x smd conditions: 1 st step: method b, aging 4 hours at 155 c dry heat 2 nd step: leadfree solder bath at 2453 c dipping time: 30.5 seconds well tinned ( 95% covered) no visible damage - leaching ipc/jedecj-std-002b test d iec 60068-2-58 leadfree solder, 260 c, 30 seconds immersion time no visible damage - resistance to soldering heat mil-std-202g-method 210f iec 60068-2-58 condition b, no pre-heat of samples leadfree solder, 270 c, 10 seconds immersion time procedure 2 for smd: devices fluxed and cleaned with isopropanol (1%+0.05 ? ) <50 m ? for jumper no visible damage
chip resistor surface mount w ww.yageo.com j ul 15, 2008 v.2 product specification 8 8 series rc 1218 (rohs compliant) revision history ? yageo reserves all the rights for revising the content of this datasheet without furt her notification, as long as the product s itself are unchanged. any product change will be announced by pcn.? revision date change notification description version 2 jul 15, 2008 - - change to dual brand datasheet th at describe rc1218 with rohs compliant - description of "halogen free epoxy" added - define global part number version 1 oct 13, 2004 - - new datasheet for 1218 thick film 1% and 5% with lead-free terminations - replace the 1218 part of pdf files: prc201_51_17 - test method and procedure updated - taping reel changed from 11" to 7" and quantity per reel from 5k to 4k as well
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