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| PRODUCT BULLETIN WW-SERIES FLAMEPROOF WIREWOUND RESISTORS 1 TO 10 WATT 0.1% THRU 10% TOLERANCE SILICONE COATED HIGH PURITY CERAMIC CORE STAINLESS STEEL END CAPS TINNED COPPER-CLAD STEEL LEADS WELDED CONSTRUCTION PACKAGED TAPE & REEL OR BULK AVAILABLE IN NON-INDUCTIVE STYLE MEETS REQUIREMENTS FOR MIL-R-26 1.375" Min. WILLOW TECHNOLOGIES LTD. SHAWLANDS COURT, NEWCHAPEL ROAD LINGFIELD, SURREY, RH7 6BL, ENGLAND Tel. + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306 E-mail rob@willow.co.uk Website http://www.willow.co.uk Specifications PRP Style WW1/2 WW1 WW2 WW3 WW4 WW5 WW7 WW10 Wattage U .75 1.0 2.0 3.0 4.0 5.0 7.0 10.0 V 1.0 1.5 2.6 3.6 5.0 6.5 8.0 11.0 Resistance Range 0.1 0.1 .02 .01 0.1 .01 0.1 0.1 to 5.23K to 5.0K to 7.2K to 9.5K to 14.0K to 42.0K to 63.0K to 92.0K Voltage U 32 44 65 130 210 360 490 632 V 44 54 77 147 250 410 530 700 L D d Dimensions PRP Style WW1/2 WW1 WW2 WW3 WW4 WW5 WW7 WW10 DIMENSIONS Inches L .266 .015 .400 .030 .460 .030 .490 .030 .550 .030 .910 .030 1.250 .060 1.750 .060 Dimensional Correlation D .095 .015 .100 .030 .175 .030 .210 .030 .220 .030 .295 .030 .295 .030 .295 .030 Lead Dia. (d) .025 * .025 * .032 .032 .032 .032 .032 .032 in. .015 .020 .025 .030 .032 .060 .095 .100 .175 .210 .220 .266 .295 .400 .460 .490 .550 .910 1.25 1.75 mm 0.38 0.5 0.64 0.76 0.81 1.52 2.41 2.54 4.45 5.33 5.59 6.76 7.49 10.2 11.7 12.4 14.0 23.1 31.8 44.5 * ALSO AVAILABLE IN .020 Temperature TC20 = 20PPM/C, 10 ohm and above. TC50 = 50PPM/C, 1 ohm - 9.9 ohm. TC90 = 90PPM/C, below 1 ohm. How to Order Sample Part Number WW1 TC20 7.5K 1% S Options N = Non-Inductive Resistance Tolerance Resistance Value Temperature Coefficient Type DEDICATION TO EXCELLENCE Subject to change without notice Continued on reverse side S = Standard ENVIRONMENTAL SPECIFICATIONS LOAD LIFE MOISTURE RESISTANCE THERMAL SHOCK SHORT TIME OVERLOAD DIELECTRIC STRENGTH LOW TEMP. STORAGE HIGH TEMP. EXPOSURE TERMINAL STRENGTH SHOCK VIBRATION CHARACTERISTIC U .5% + .05 .2% + .05 .2% + .05 .2% + .05 .1% + .05 .2% + .05 .5% + .05 .1% + .05 .1% + .05 .1% + .05 V 3.0% + .05 .2% + .05 .2% + .05 .5% + .05 .1% + .05 .2% + .05 .5% + .05 .1% + .05 .1% + .05 .1% + .05 Derating Curve 100 80 LOAD % 60 CHAR. U CHAR. V 40 20 0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 AMBIENT TEMP (C) WW Series resistors have an operating temperature of -55C to +350C. They must be derated for use at high ambient temperatures as shown above. Resistors with characteristic V are available in 3%, 5% and 10% only. Subject to change without notice |
Price & Availability of WW1
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