36 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. 1/31/08 sr73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor features ? ruo 2 thick film resistor element ? anti-leaching nickel barrier terminations ? meets or exceeds eia 575, eia pdp-100, mil-r-55342f ? marking: three or four digits on indigo protective coat, 1e size: 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 ordering information d: 0.5% f: 1% g: 2% j: 5% t: sn (other termination styles may be available, please contact factory for options) 2%, 5%: 2 significant figures + 1 multiplier r indicates decimal on value <10 1%: 3 significant figures + 1 multiplier r indicates decimal on value <100 all values less than 0.1 (100m ) are expressed in m with l as decimal example: 20m = 20l0 1e 1j 2a 2b 2e 2h 3a 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) sr73 type size nominal resistance tolerance termination material packaging new part # 2b td 1r00 f t dimensions and construction protective coating inner electrode resistive film ceramic substrate solder plating ni plating l c c w t d type l .039 +.004 -.002 (1.0 +0.1 ) -0.05 .01.004 (0.25?.1) .012 +.008 -.004 (0.3 +0.2 ) -0.1 .016 +.008 -.004 (0.4 +0.2 ) -0.1 .014.002 (0.35?.05) .018.004 (0.45?.1) .014.004 (0.35?.1) .02.004 (0.5?.1) .024.004 (0.6?.1) .01.004 (0.25?.1) .014.004 (0.35?.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 +.006 -.004 (0.8 +0.15 ) -0.1 .02 +.004 -.002 (0.5 +0.1 ) -0.05 .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) for further information on packaging, please refer to appendix a. resistors eu
37 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. 10/02/07 sr73 lo-ohm 0.5%, 1%, 2%, 5% tolerance thick film current sense resistor * parenthesis indicate eia package size codes. ** see appendix d for available decade values. *** 1e (f: 1%) e-24 values only. 1 power rating for sr731e 0.91 - 10 = 1/10 (0.1w) 2 please contact factory for limitation of surface mount temp. rise absolute maximum working voltage e-24, e-96 (f?%) e-24 (g?%) e-24 (j?%) part designation* maximum overload voltage (5 secs. max.) operating temperature range power rating @ 70? applications and ratings sr731e (0402) sr731j (0603) 0.51 - 10 *** 0.2 - 0.47 *** 0.1 - 0.18 *** 0.51 - 10 0.2 - 0.47 0.1 - 0.18 0.1 - 10 0.1 - 10 0.1 - 10 0.51 - 10 0.2 - 0.47 1.11v 2.79v 1.41v 3.53v 0.1 - 0.18 200 300 1/8w (.125w) 1/6w (.166w 2 ) 1/5w (.2w) sr732a (0805) 1.58v 3.95v 1/4w (.25w) 1/3w (.33w 2 ) 500 200 resistance range** t.c.r. (ppm/?) max. -55c to +150c 0.1 - 10 100 0.1 - 10 200 0.1 - 10 500 0.051 - 0.091 800 0.030 - 0.047 sr732b (1206) 1.81v 4.54v 1/3w (.33w) 1/2w (.5w 2 ) 0.1 - 10 100 0.1 - 10 200 0.1 - 10 500 0.056 - 0.091 800 0.030 - 0.051 sr732h (2010) 2.73v 6.84v 3/4w (.75w) 0.1 - 10 100 0.1 - 10 200 0.1 - 10 500 0.056 - 0.091 800 0.033 - 0.051 sr733a (2512) 3.16v 7.90v 1w 0.1 - 10 100 0.1 - 10 200 0.1 - 10 500 0.056 - 0.091 800 0.039 - 0.051 sr732e (1210) 2.23v 5.59v 1/2w (.5w) 2/3w (.66w 2 ) 0.1 - 10 100 0.1 - 10 200 0.047 - 10 500 0.036 - 0.043 1000 0.024 - 0.033 * rcwv = rated continuous working voltage. derating curve performance characteristics surface temperature rise environmental applications % rated power 100 80 60 40 20 -60 -40 0 40 60 80 100 160 70 20 ambient temperature ( c) 0 -55 120 155 -20 140 150 1e 1j, 2a, 2b, 2e, 2h, 3a temperature rise ( c) 180 160 120 80 40 25 50 75 100 % rated power w3a (1w) w2h (.75w) 2e (.5w) 2a (.25w) 1e (.125w) 0 0 140 100 60 20 2e (.66w) 2b (.5w) 2a (.33w) 1j (.2w) 1e (.166w) 2b (.33w) measuring point parameter thermal shock mil-std-202, method 107, -55c to -150c, 100 cycles 1.0% low temperature operation mil-r-55342 4.7.4, 1 hour @ -55c followed by 45 minutes of rcwv* 1.0% high temperature exposure mil-r-55342 4.7.6, 100 hours @ -150c 1.0% short time overload mil-r-55342 4.7.5, 2.5 x rcwv for 5 seconds 2.0% resistance to solder heat mil-r-55342 4.7.7, 260c for 10 seconds 1.0% terminal strength-bend 2mm min. deflection in either direction for 10 seconds 1.0% moisture resistance mil-std-202, method 103, 40c, 90 - 95% rh, 1000 hours 2.0% life dielectric withstanding voltage 1e, 1j, 2a, 2b, 2e, 2h, 3a pulse limitation curves are available at www.koaspeer.com mil-std-202, method 108, 70c, 1000 hours @ rcwv, 1.5 hr on, 0.5 hr off mil-std-202, method 301 2.0% 100v, 100v, 400v, 400v, 400v, 400v, 400v insulation resistance 10,000 m minimum maximum r test method resistors e-24, e-96 (d?.5%) 0.15 - 10 0.15 - 10
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