irc advanced film division general note irc reserves the right to make changes in product specification without notice or liability . all information is subject to ircs own data and is considered accurate at time of going to print. a subsidiary of tt electronics plc ? corpus christi texas 78411 usa ? irc advanced film division telephone: 361 992 7900 ? facsimile: 361 992 3377 ? email: afdsales@irctt.com ? website: www.irctt.com mhp series issue april 2006 mhp series to-220 power resistor ? to-220 housing ? low inductance (<50nh) ? available in 20w or 35w ? rohs compliant terminations ? high stability ? lm resistance elements electrical data ircs mhp series resistors satisfy demanding applications for accurate and stable power resistors housed in the convenient to-220 case. the resistance element is isolated from the mounting tab by an alumina ceramic layer, providing very low ther- mal resistance and ensuring high insulation resistance between terminals and tab. the non-inductive design makes these products especially useful in high frequency and high speed pulse applications. t ype power rating 4, 5 thermal resistance resistance range 3 tolerances temperature coef? cient heatsink 1 free air 2 min max mhp-35 35w 1w 3.3c/w 0.1 ? 220 ? 1% 100 ppm/c 0.01 ? 220 ? 5% 250 ppm/c 20w 1w 3.3c/w 220 ? 51k ? 1%, 5% 100 ppm/c mhp-20 20w 1w 5.9c/w 0.1 ? 220 ? 1% 100 ppm/c 0.01 ? 220 ? 5% 250 ppm/c 10w 1w 5.9c/w 220 ? 51k ? 1%, 5% 100 ppm/c 1 power rating based on 25c flange temperature; 2 power rating based on 25c ambient temperature; 3 consult factory for higher or lower values; 4 max current 25 amps; 5 max voltage 500v or p x r max voltage 500v or p x r max voltage 500v or p x r mhp series frequency data 1k 100 10m 100k 10k 10 10k impedance ( ? ) frequency (hz) 1m 100m 1g 1k 100 1m 10 1 10 10k peak watts pulse width (seconds) 100 10m 100m pulse data one time rectangular pulse mhp20lf 10k0 mhp20lf 1k00 mhp20lf 100r mhp20lf 22r0 mhp20lf 50r0
mhp series issue april 2006 irc advanced film division ? corpus christi texas 78411 usa ? irc advanced film division telephone: 361 992 7900 ? facsimile: 361 992 3377 ? email: afdsales@irctt.com ? website: www.irctt.com irc advanced film division mhp series to-220 power resistor physical data b1 e b l r p e h q a f c l note: dimension c apply f or tin plate finish. ? (5x) d j c mhp20 20r 1% 0312 pos inches millimeters min max min max a 0.160 0.190 4.06 4.83 b 0.025 0.040 0.63 1.02 c 0.015 0.022 0.38 0.56 d 0.560 0.590 14.22 14.99 e 0.385 0.415 9.78 10.54 e 0.190 0.210 4.83 5.33 f 0.045 0.055 1.14 1.40 h 0.234 0.258 5.94 6.55 j 0.090 0.115 2.28 2.92 p 0.146 0.156 3.71 3.96 q 0.103 0.113 2.62 2.87 l 0.540 0.560 13.72 14.22 lead material tinned copper a 3 7 3 7 substrate material 96% alumina ceramic b1 0.045 0.060 1.14 1.52 resistor construc- tion proprietary ? lm conductors and proprietary alloy resistors r 0.243 ref 6.17 ref
mhp series issue april 2006 irc advanced film division ? corpus christi texas 78411 usa ? irc advanced film division telephone: 361 992 7900 ? facsimile: 361 992 3377 ? email: afdsales@irctt.com ? website: www.irctt.com irc advanced film division mhp series to-220 power resistor test max ? r thermal shock mil-std-202 method 107 cond. f 0.30% +0.5m ? thermal strength mil-std-202 method 211 cond. a (5165) 0.20% +0.5m ? short-time overload 5 sec 2x rated power 0.30% +0.5m ? moisture resistance mil-std-202 method 106 1.0% +0.5m ? mechanical shock method mil-std-202 method 213 cond. i 0.25% +0.5m ? vibration mil-std-202 method 204 cond. d 0.25% +0.5m ? load life mil-std-202 method 108 1,000 hours 1.00% +0.5m ? resistance to solder heat mil-std-202 method 210f cond. b 0.25% +0.5m ? environmental data for additional information or to discuss your specific requirements, please contact our applications team using the contact details below. ordering data pre? x tfp - mhp20lf - 1r50 - j style mhp20lf = 20w, to-220 style power resistor mhp35lf = 35w, to-220 style power resistor resistance code 4-digit resistance code. ex: 10r0 = 10 ? , 1k00 = 1k ? absolute tolerance code j = 5%; f = 1% power derating data 50 150 70 25 10 100 % of rated power flange temperature (c)
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