? ? ? rev. 7 ? thin film anti-sulfurated chip resistor meritek AS73 series ? feature and applications ? special passivation for mois ture sensitive applications ? special materials, design, and proc essing for high sulfur applications ? tolerances as low as 0.05% and tcr?s as low as 10 ppm. ? test proven immunity to humidity, moisture, and sulfur ? rohs compliant / lead free ? precision automotive and industrial motor c ontrols, pump controls, dispensing systems ? welding equipment ? audio / video amplifiers ? notebook and laptop motherboard ? handheld instruments such as printers, scanners, and test instruments ? base station and remote telecom applications ? medical test and monitoring equipment. p art n umbering s ystem recommend land pattern AS73 f 2a t 1001 f thin film anti-sulfurated precision resistors tcr (ppm/c) c d f g 10 15 25 50 size code 1j 2a size 0603 0805 packaging code code t b packaging tape and reel bulk resistance value 24r9 1001 5003 24.9 ? 1k ? 500k ? resistance tolerance code a b c d f value 0.05% 0.1% 0.25% 0.5% 1% construction dimensions unit: mm type a b c 1j (0603) 0.80 1.00 0.900.2 2a(0805) 1.00 1.00 1.350.2 ? alumina substrate ? edge electrode (nicr) ? resistor layer (nicr) ? bottomelectrode (nicr) ? barrier layer (ni) ? overcoat (epoxy) ? top electrode (cu) ? external electrode (sn) ? marking type size (inch) l w t d1 d2 weight (g) (1000pcs) 1j 0603 1.550.10 0.800.10 0.450.10 0.300.20 0.300.20 1.83 2a 0805 2.000.15 1.250.15 0.550.10 0.300.20 0.400.25 4.71 l t d1 d2 w ? ? ? ? ? ? ? ? ? unit: mm a ? b c
? ? ? rev. 7 ? thin film anti-sulfurated chip resistor meritek AS73 series derating curve standard electrical specifications item type power rating at 70c operating temp. range max. operating voltage max. overload voltage resistance range tcr (ppm/c) 0.1% 0.25% 0.5% 1% 1j (0603) 1/16w -55 ~ +155c 50v 100v 24.9 ? ? 332k 25 50 2a (0805) 1/10w -55 ~ +155c 100v 200v 24.9 ? ? 500k ? 25 50 operating voltage= (p*r) or max. operating voltage listed above, whichever is lower. overload voltage=2.5* (p*r) or max. overload voltage list ed above, whichever is lower. special electrical specifications item type power rating at 70c operating temp. range max. operating voltage max. overload voltage resistance range tcr (ppm/c) 0.05% 0.1% 1j (0603) 1/16w -55 ~ +155c 50v 100v 24.9 ? ? 12k ? 10 ? 12.1k ? ? 332k ? 15 2a (0805) 1/10w -55 ~ +155c 100v 200v 24.9 ? ? 15k ? 10 ? 15.1k ? ? 500k ? 15 operating voltage= (p*r) or max. operating voltage listed above, whichever is lower. overload voltage=2.5* (p*r) or max. overload voltage list ed above, whichever is lower. ? 0 20 40 60 80 100 0 20 40 60 80 100 120 140 160 180 ambient temperature( ) power ratio(%)
? ? ? rev. 7 ? thin film anti-sulfurated chip resistor meritek AS73 series environmental characteristics ? item requirement test method tol. Q 0.05% tol. > 0.05% temperature coefficient of resistance (t.c.r.) as spec. mil-std-202f method 304 +25/-55/+25/+125/+25 ? c short time overload ? r0.05% ? r0.2% jis-c-5201-1 5.5 rcwv*2.5 or max. overload voltage for 5 seconds ? r0.2% for high power rating insulation resistance >1000 m ? mil-std-202f method 302 apply 100v dc for 1 minute endurance ? r0.05% ? r0.2% mil-std-202f method 108a 70 ? 2 ? c, max. working voltage for 1000 hrs with 1.5 hrs ?on? and 0.5 hrs ?off? >7k ? ? r0.5% ? r0.5% for high power rating damp heat with load ? r0.05% ? r0.3% mil-std-202f method 103b 40 ? 2 ? c, 90~95% r.h. max. working voltage for 1000 hrs with 1.5 hrs ?on? and 0.5 hrs ?off? ? r0.5% for high power rating bending strength ? r0.05% ? r0.2% jis-c-5201-1 6.1.4 bending amplitude 3 mm for 10 seconds solderability 95% min. coverage mil-std-202f method 208h 245 ? 5 ? c for 3 seconds resistance to soldering heat ? r0.05% ? r0.2% mil-std-202f method 210e 2605 ? c for 10 seconds dielectric withstand voltage by type mil-std-202f method 301 max. overload voltage for 1 minute thermal shock ? r0.05% ? r0.25% mil-std-202f method 107g -55 ? c ~150 ? c, 100 cycles low temperature operation ? r0.05% ? r0.2% jis-c-5201-1 7.1 1 hour, -65 ? c, followed by 45 minutes of rcwv ? r0.5% for high power rating sulfur test ? 0.5% astm-b-809-95 3~5ppm h2s, 50 ? 2 ? c, 91~93% r.h., no power rating for 1000 hrs storage temperature: 253 ? c; humidity < 80%rh reflow
? ? ? rev. 7 ? thin film anti-sulfurated chip resistor meritek AS73 series marking 0603 3digit marking ? 3digit marking for example: 14c=13k7 13c=13k3 68b=4k99 68x=49.9 marking label code e96 code e96 code e96 code e96 01 100 25 178 49 316 73 562 02 102 26 182 50 324 74 576 03 105 27 187 51 332 75 590 04 107 28 191 52 340 76 604 05 110 29 196 53 348 77 619 06 113 30 200 54 357 78 634 07 115 31 205 55 365 79 649 08 118 32 210 56 374 80 665 09 121 33 215 57 383 81 681 10 124 34 221 58 392 82 698 11 127 35 226 59 402 83 715 12 130 36 232 60 412 84 732 13 133 37 237 61 422 85 750 14 137 38 243 62 432 86 768 15 140 39 249 63 442 87 787 16 143 40 255 64 453 88 806 17 147 41 261 65 464 89 825 18 150 42 267 66 475 90 845 19 154 43 274 67 487 91 866 20 158 44 280 68 499 92 887 21 162 45 287 69 511 93 909 22 165 46 294 70 523 94 931 23 169 47 301 71 536 95 953 24 174 48 309 72 549 96 976 code a b c d e f g h x y z multiplier 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 -1 10 -2 10 -3 0603 3digit marking for e24 example: 101=100 ? 102=1k ? e24 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 0805 4digit marking example resistance 100 ? 2.2k ? 10k ? 49.9k ? 100k ? marking 1000 2201 1002 4992 1003 14c
? ? ? rev. 7 ? thin film anti-sulfurated chip resistor meritek AS73 series packaging unit : mm paper tape specifications unit: mm type a b w e f p 0 p 1 p 2 d 0 t 1j (0603) 1.100.05 1.900.05 8. 000.10 1.750.05 3.50.05 4.000.10 4.000.10 2.000. 05 1.550.05 0.600.03 2a(0805) 1.600.05 2.370. 05 8.000.10 1.750.05 3.5 0.05 4.000.10 4.00 0.10 2.000.05 1. 550.05 0.750.05 ? peel force of top cover tape ? the peel speed shall be about 300mm/min5% ? the peel force of top cover tape shall be between 8g to 40g 8~40g top cover tape 165~180 type ?a ?b ?c w t paper tape (ea) emboss plastic tape (ea) 1j (0603) 178.01.0 60.0+1.0 13. 50.7 9.51.0 11.51.0 5,000 - 2a(0805) 178.01.0 60. 0+1.0 13.50.7 9.51.0 11.51.0 5,000 - w e f d 0 p 1 p 2 p 0 direction of unreeling a b top tape bottom tape resistor paper tape t
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