? ? ? rev. 7 ? thick film resistor networks r series (single-in-line, low profile ) feature ? wide resistance range: 2291 to 1m ? (1 o ? - 3.3 m ? available) ? miniature package with maximum sealed heights 0.2"(5.08mm) ? highly stable thick film products ? products protected by tough epoxy conformal coating ? reduces total assembly cost ? mixed value resistances available p art n umbering s ystem r a 09 103 g meritek series circuit configurations element no. 2 ? 20 resistance value the first two digits are significant figures of resistance value and the third denotes the number of zeros following code 331 472 223 104 value 330 ? 4.7k ? 22k ? 100k ? resistance tolerance code f g j tolerance 1% 2% 5% ? construction ? and ? dimension ? ? ? ? ? ? ? ? ? ? ? ?
? ? ? rev. 7 ? thick film resistor networks r series (single-in-line, low profile ) ? ? ? mechanical ? characteristics ? ? ? electrical ? characteristics ? ? item requirement test methods temperature coefficient (ppm / c) r<50 ? , 250 ppm/oc 50? r<2.2m ? , 100ppm/oc r 2.2m ? , 250ppm/oc tcr (ppm/c)= ? 6 ? ? 5 ? 5 x 5 6 ? 5 t1= 25oc t2= test temperature (-55c ~ +125oc) r1: resistance at temp. t1 r2: resistance at temp. t2 short-time overload ? r (0.5% + 0.05 ? ) 2.5x rated voltage for 5 sec. (200v max.) measure resistance after 30 minutes. ? ? ? item requirement test methods resistance to soldering heat ? r (0.5% + 0.05 ? ) with 3505oc , for 3 seconds solderability over 95% of termination must be covered with new solder. after immersing flus, dip in the 260oc max. solder bath for 30.5 sec. terminal strength (tensile strength) ? r (0.5% + 0.05 ? ) no mechanical damage. tensile: 1kg for 30 sec. bending: 500g for 2 times exterior no mechanical defect. visual size within specification calipers
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