document number: 53017 revision 26-jul-05 www.vishay.com 2 p vishay sfernice for technical questions, contact sfer@vishay.com high precision wraparound thin film chip resistors features load life stability at 70c for 2000 hours: 0.1% under pn/0.05% under pd low temperature coef? cient down to 10ppm/c very low noise and voltage coef? cient resistance range : 10 ? to 3m ? depending on size extended ohmic value range (see table) tolerances to 0.01% in lot tracking 5ppm/c termination: thin film technology gold plated or pre-tinned terminations over nickel barrier short circuits (jumpers) r < 50mr, i < 2a for low noise and precision applications, superior stability, low temperature coefficient of resistance, and low voltage coefficient, vishay sfernice?s proven precision thin film wraparound resistors exceed requirements of mil-prf-55342g characteristics y ( 10ppm/c). series p p = standard chip case style 0505 tcr y k = 100ppm/c h = 50ppm/c e = 25ppm/c y = 10ppm/c x = jumper ohmic value 1003 tolerance e l = 0.01% p = 0.02% w = 0.05% b = 0.1% c = 0.25% d = 0.5% f = 1% g = 2% j = 5% s special x = jumper termination b the first three digits (2 digits are enough for tolerance g and j) are significant figures and the last digit specifies the number of zero to follow. r designates decimal point 10 r0 = 10 ? 3901 = 3900 ? 1004 = 1m ? 0r00 = jumper 0402 0505 0603 0705 0805 1005 1206 1505 2010 a d d e e c dimensions in millimeters (inches) case size a b c d / e limiting element voltage v resistance range (see below for extended ? range) max. tol. + 0.152 (0.006) min. tol. ? 0.152 (? 0.006) max. tol. + 0.127 (0.005) min. tol. ? 0.127 (? 0.005) max. tol. + 0.127 (0.005) min. tol. ? 0.127 (? 0.005) max. tol. + 0.13 (0.005) min. tol. ? 0.13 (? 0.005) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 0.38 (0.015) 50 125 37 50 50 75 75 75 100 200 250 330 350 1000 37 75 100 125 150 175 500 10 ? to 50k ? 10 ? to 260k ? 10 ? to 300k ? 10 ? to 500k ? 10 ? to 500k ? 125 50 50 10 ? to 260k ? 0.5 (0.02) 0.5 (0.02) 0.5 (0.02) 0.5 (0.02) 0.5 (0.02) 0.5 (0.02) 0.5 (0.02) 0.5 (0.02) 0402 0505 0603 0705 0805 1005 1206 1505 2010 power rating w pn pd m dimension 10 ? to 3m ? 0.6 (0.023) 1.27 (0.050) 0.75 (0.030) 1.27 (0.050) 1.27 (0.050) 1.60 (0.063) 1.32 (0.054) 2.54 (0.100) 10 ? to 1m ? extended ohmic value range for high precision wraparound thin film chip resistors b 0402 0505 0603 0705 0805 1206 2010 size 1.00 (0.040) 1.35 (0.053) 1.52 (0.060) 1.91 (0.075) 2.54 (0.100) 3.06 (0.120) 3.81 (0.150) 5.08 (0.200) tightest tolerance % extended ohmic value range best tcr (ppm/c) 0.05 0.1 0.05 0.1 0.05 0.1 0.05 0.1 0.05 0.25 50k - 100k 100k - 1m 250k - 300k 300k - 2m5 300k - 500k 500k - 5m 1m - 2m 2m - 15m 3m - 6m 6m - 50m 25 50 25 50 25 50 25 50 25 50 using special nicr and crsi alloys we are able to extend the ohmic value range as indicated above b: snpb over nickel barrier n: snag over nickel barrier g: gold over nickel barrier ordering information
www.vishay.com 3 p vishay sfernice document number: 53017 revision 26-jul-05 for technical questions, contact sfer@vishay.com t.c. code film ni cr y 10ppm/c * ni cr e 25ppm/c ni cr or ta 2 n h 50ppm/c (standard) ni cr or ta 2 n k 100ppm/c * r > 50 ? on request for lower values temperature coefficient tightest tolerance code ohmic values r > 10 ? c 0.25% r > 25 ? b 0.10% r > 50 ? w 0.05% r > 100 ? p 0.02% r > 250 ? l tcr ppm/c 25 20 10 0.01% best tol. and tcr v resistance value high precision wraparound, thin film chip resistors 1.27 (0.050) tests conditions thermal shock short time overload low temperature operation resistance to solder heat high temperature moisture resistance mil - prf - 55342g mil-std-202 f -method 107 f mil - prf - 55342g para 3.10.4.7.5 mil - prf - 55342g para 3.9 & 4.7.4 mil - prf - 55342g para 3.12, 4.7.7, 4.7.1.2 mil - prf - 55342g para 3.13 & 4.7.8 mil-std-202 f-method 106 e mil - prf - 55342g 2000 hours pn at 70c mil-std-202 f -method 108 a mil-prf-55342g requirements typical performances mil-prf-55342g requirements typical performances 0.25% 0.10% 0.25% 0.25% 0.40% 0.20% 0.50% 0.02% 0.01% 0.01% 0.04% 0.01% 0.075% 0.15% 0.05% 0.05% 0.05% 0.05% 0.10% 0.05% 0.5% 0.02% 0.01% 0.01% 0.03% 0.01% 0.05% 0.10%* ta 2 n drifts ni cr load life * 0.05 % under pd performance several types of packaging are available: tube, waffle-pack and tape and reel. number of pieces per package size tube waffle pac k 2" x 2" tape and reel tape width 0603 0505 1005 1206 1505 2010 0805 0705 500 100 140 60 500 100 250 4000 * 12mm on request min. max. packaging mil - prf - 55342g para 3.11 & 4.7.6 electrical specifications resistance range: 10 ? to 3m ? resistance tolerance: 0.1% to 5% 0.01% to 0.05% on y type power dissipation: pn: 50mw to 1w pd: 37mw to 500mw on tolerance tighter than 0.05% temperature coefficient: see table below mechanical specifications substrate: alumina technology: thin film film: nickel chromium with mineral passivation or ta 2 n protection: silicon terminations: b type: snpb over nickel barrier for solder reflow n type: snag over nickel barrier g type : gold over nickel barrier for other applications climatic specifications operating temp. range : ? 55c to + 155c for temperature up to 200c, please consult factory % rated power 100 80 60 40 20 0 0 20 40 60 70 80 100 120 140 155 ambient temperature in c power derating curve 8mm * 8mm 0402
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