www.vishay.com for technical questions, c ontact: filmresistors.leaded@vishay.com document number: 28724 32 revision: 20-feb-08 mrs16, mrs25 vishay bccomponents professional leaded resistors description a homogeneous film of metal alloy is deposited on a high grade ceramic body. after a helical groove has been cut in the resistive layer, tinned connecting wires of electrolytic copper are welded to the end-caps. the resistors are coated with lacquer which provides electrical, mechanical, and climatic protection. four or fi ve colour code rings designate the resistance value and tolerance according to iec 60 062 . suitable replacements for mrs16 and mrs25 are mba/sma 0204 and mbb/sma 0207 professional. features ? professional resistors in small outlines ? low noise ? lead (pb)-free solder contacts ? pure tin plating provides compatibility with lead (pb)-free and lead containing soldering processes ? compatible with ?restriction of the use of hazardous substances? (rohs) directive 2002/95/ec (issue 2004) applications ? all general purpose applications technical specifications description value mrs16 mrs25 resistance range 4.99 to1m 1 to 10 m resistance tolerance and series 1 %; e24/e96 series maximum dissipation at t amb =70 c 0.4 w 0.6 w thermal resistance ( r th ) 170 k/w 150 k/w temperature coefficient 50 ppm/k maximum permissible voltage (dc or rms) 200 v 350 v basic specifications iec 60115-1 and 60115-2 climatic category (iec 60068) 55/155/56 max. resistance change for resistance range, r max., after: load: r 100 k (0.5 % r +0.05 ) (0.5 % r +0.05 ) r >100k (1 % r +0.05 ) (0.5 % r +0.05 ) climatic tests: r 100 k (0.5 % r +0.05 ) ( 0.5 % r +0.05 ) r >100k (1 % r +0.05 ) (0.5 % r +0.05 ) soldering: r 100 k (0.1 % r +0.05 ) ( 0.1 % r +0.05 ) r >100k (0.25 % r +0.05 ) ( 0.1 % r +0.05 ) short time overload (0.25 % r +0.05 ) ( 0.25 % r +0.05 ) packaging model reel box pieces/reel code pieces/box code mrs16 5000 rp 1000 5000 c1 ct mrs25 5000 rp 1000 5000 c1 ct
document number: 28724 for technical question s, contact: filmresistors.leaded@vishay.com www.vishay.com revision: 20-feb-08 33 mrs16, mrs25 professional l eaded resistors vishay bccomponents dimensions 12nc information ? the resistors have a 12-digit numeric code starting with 2322 15. ? the subsequent 2 digits indicate the resistor type and packaging; see the 12nc ordering code table. ? the remaining 4 digits indicate the resistance value: ? the first 3 digits indicate the resistance value. ? the last digit indicates the resistance decade in accordance with the 12nc indicating resistance decade table. last digit of 12nc indicating resistance decade 12nc example the 12nc of a mrs16 resistor, value 750 , on a bandolier of 1000 units in ammopack is: 2322 157 17501. notes: (1) please refer packaging table ? the part number is shown to facilitate the introduction of a unified part numbering system for ordering products dimensions - leaded resistor types, mass and relevant physical dimensions type d max. (mm) l max. (mm) d nom. (mm) m min. (mm) mass (mg) mrs16 1.6 3.6 0.5 5.0 125 mrs25 2.5 6.3 0.6 10.0 220 l d d m resistance decade last digit 1 to 9.76 8 10 to 97.6 9 100 to 976 1 1 k to 9.76 k 2 10 k to 97.6 k 3 100 k to 976 k 4 1 m to 9.76 m 5 10 m 6 12nc - resistors type and packaging type ordering code 2322 15. ..... bandolier in ammopack bandolier on reel 1000 units 5000 units 5000 units mrs16 7 1.... 7 2.... 7 3.... mrs25 6 1.... 6 2.... 6 3.... part number and product description part number: mrs16000c5119fct mrs16000c5119fct00 model/size special character tcr value tolerance pac k ag i n g (1) special mrs1600 mrs2500 0 = neutral c = 50 ppm/k 3 digit value 1 digit multiplier multiplier f = 1 % rp ct c1 up to 2 digits 00 = standard 7 = *10 -3 8 = *10 -2 9 = *10 -1 0 = *10 0 1 = *10 1 2 = *10 2 3 = *10 3 4 = *10 4 5 = *10 5 6 = *10 6 product description: mrs 16-50 1 % ct 51r1 mrs16 50 1 % ct 51r1 model/size tcr tolerance pac k ag i n g (1) resistance value mrs16 mrs25 50 ppm/k 1 % rp ct c1 51r1 = 51.1 1k = 1 k
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