1e 1j 2a 2b 2e 2h 3a features ? same quality thick film construction as type rm ? glass passivated, supplied without protective coat ? anti-leaching nickel barrier terminations ? trimmable in circuit 2x original value ? replaces trimmer in critical circuit adjustments ? marking: black body with no marking ? products with lead-free terminations meet eu rohs requirements. pb located in glass material, electrode and resistor element is exempt per annex 1, exemption 5 of eu directive 2005/95/ec 20 koa speer electronics, inc. ? bolivar drive ? p.o. box 547 ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com specifications given herein may be changed at any time without prior notice. please confirm technical specifications before you order and/or use. 1/26/07 rk73n trimmable chip resistor dimensions and construction protective coating l c w t d inner electrode solder plating ni plating resistive film ceramic substrate c ordering information n: 0 ~ -20% p: 0 ~ -30% w: 10% m: 20% t: sn l: snpb (other termination styles may be available, please contact factory for options) 2 significant figures + 1 multiplier tp: 2mm pitch punched paper (0402, 0603 & 0805) td: 7" paper tape (0603, 0805, 1206 &1210) tdd: 10" paper tape (0603, 0805, 1206 &1210) te: 7" punched plastic (0805, 1206, 1210, 2010 & 2512) ted: 10" punched plastic (0805, 1206, 1210, 2010 & 2512) rk73n type size nominal resistance tolerance termination material packaging new part # 2b td 102 w t for further information on packaging, please refer to appendix a. type l .039 +.004 -.002 (1.0 +0.1 ) -0.05 .01 +.002 -.004 (0.25 +0.05 ) -0.1 .012 +.008 -.004 (0.3 +0.2 ) -0.1 .016 +.008 -.004 (0.4 +0.2 ) -0.1 .013.002 (0.33?.05) .018.004 (0.45?.1) .012.004 (0.3?.1) .02.004 (0.5?.1) .024.004 (0.6?.1) .008.004 (0.2?.1) .012.004 (0.3?.1) .016.008 (0.4?.2) .02.012 (0.5?.3) .063.008 (1.6?.2) .102.008 (2.6?.2) .098.008 (2.5?.2) .122.008 (3.1?.2) .126.008 (3.2?.2) .049.004 (1.25?.1) .031.004 (0.8?.1) .02.002 (0.5?.05) .063.008 (1.6?.2) .079.008 (2.0?.2) .197.008 (5.0?.2) .248.008 (6.3?.2) 1e (0402) 1j (0603) 2a (0805) 2b (1206) 2h (2010) 3a (2512) (inch size code) wc d t dimensions inches (mm) 2e (1210) resistors .025.005 (0.65?.15) eu
rk73n trimmable chip resistor absolute maximum working voltage resistance tolerance resistance range e-12** part designation* absolute maximum overload voltage operating temperature range power rating @ 70? t.c.r. (ppm/?) max. applications and ratings rk73n1e (0402) rk73n1j (0603) rk73n2a (0805) rk73n2b (1206) rk73n2e (1210) rk73n2h (2010) rk73n3a (2512) 1/16w (.063w) 1/10w (.10w) 1/8w (.125w) 1/4w (.25w) 1/3w (.33w) 3/4w (.75w) 1w 200 n: 0 ~ -20% p: 0 ~ -30% w: 10% m: 20% 10 - 1m 100v 200v 50v 100v 200v 400v -55c to +125c derating curve environmental applications % rated power 100 80 60 40 20 -60 -40 -20 0 40 60 80 100 140 70 20 ambient temperature ( c) 0 -55 120 125 21 koa speer electronics, inc. ? bolivar drive ? p.o. box 547 ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com specifications given herein may be changed at any time without prior notice. please confirm technical specifications before you order and/or use. 1/26/07 for complete environmental specifications, please refer to pages 34-35. the trimmable chip resistor is suitable for the circuit demanding high stability as a replacement of variable resistors for adjusting circuit. please note that customers need laser trimming equipment. trimming by laser increases the initial resistance. amount of resistance increase is dependent on the laser cut configuration as shown. w 1 must not exceed 1/2w to ensure power rating of the unit. * parenthesis indicate eia package size codes. ** see appendix d for available decade values. resistance rising rate w 1 r/r magnification 2 1.5 0.5 1 w 1 / w (w 1 = total trimmed length) 1 0 initial resistance increase of magnification single cut l cut double reverse cut double cut w resistors
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