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 advanced film division ? 4222 south staples street ? corpus christi texas 78411 usa telephone: 361 992 7900 ? facsimile: 361 992 3377 ? website: www.irctt.com mhp to220 series issue may 2010 mhp to-220 series power resistor ? to-220 housing ? low inductance and capacitance for high frequency circuits ? available in 20w, 35w, or 50w ? high stability flm resistance elements ? rohs compliant ? approved to dscc drawings 07017 and 07018 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. mhp series electrical data type power rating 1 voltage rating 4 thermal resistance resistance range tolerances nominal resistance series 5 typ. tcr (ppm/c) induc - tance capaci - tance heatsink 2 free air 3 min max mhp-20 20w 2.25w 500v 5.9c/w 0.01 ? 0.09 ? 1%, 5% e24 includes 2.5 & 5.0 multiplier see chart <9nh <2pf 0.1 ? 9.1 ? 10 ? 51k ? mhp-35 35w 2.25w 500v 3.3c/w 0.01 ? 0.09 ? 1%, 5% e24 includes 2.5 & 5.0 multiplier see chart <9nh <2pf 0.1 ? 9.1 ? 10 ? 51k ? mhp-50 50w 2.25w 500v 2.3c/w 0.01 ? 0.09 ? 1%, 5% e24 includes 2.5 & 5.0 multiplier see chart <10nh <2pf 0.1 ? 9.1 ? 10 ? 51k ? 1 maximum current 25 amps 2 power rating based on 25c tab temperature 3 power rating based on 25c ambient temperature 4 maximum voltage 500v or p x r 5 contact factory for availability of resistance or tolerance values outside this range frequency characteristics 10k 1k 100 10k 100k 1m 10m 100m 1g frequency (hz) pulse energy durability 10k 1k 100 10 pulse width (seconds) impedance (ohms) pulse peak (watts) 10 100 1m 10m 100m mhp20lf 10k mhp20lf 1k00 mhp20lf 100r mhp20lf 50r0 mhp20lf 22r0 10 mhp50 mhp35 mhp20 safety zone damage level
mhp to-220 series issue may 2010 advanced film division ? 4222 south staples street ? corpus christi texas 78411 usa telephone: 361 992 7900 ? facsimile: 361 992 3377 ? website: www.irctt.com mhp to-220 series power resistor physical data dim in (nom) mm a 0.398 10.1 .2 b 0.591 15.0 0.2 c 0.177 4.5 0.2 ?d 0.142 3.6 0.1 e 0.610 15.5 1.0 f 0.158 4.0 0.5 g 0.118 3.0 0.2 h 0.108 2.75 0.2 j 0.020 0.5 0.05 k 0.030 0.75 0.05 l 0.059 1.5 0.05 m 0.200 5.08 0.1 lead material tin plated copper n 0.059 1.5 0.05 tab material nickel plated copper p 0.630 16.0 0.1 test method specifcation - performance thermal shock mil-std-202 method 107 condition f 0.30% + 50m ? moisture resistance mil-std-202 method 106 1.0% + 50m ? vibration mil-std-202 method 204 condition d 0.25% + 50m ? load life mil-std-202 method 108 1,000 hours 1.0% + 50m ? resistance to solder heat mil-std-202 method 210 condition b 0.25% + 50m ? dielectric withstanding voltage mil-std-202 method 301 2200 volts dc or 1500 volts ac; 60 seconds insulation resistance (between terminal and tab) mil-std-202 method 302 >1000m ? solderability mil-std-202 method 208 >95% coverage operating temperature range -55c to +155c environmental data l m k e f ?d a g c n c l b h j c l note: metal ta bi se lectrically isolated. c l c l c l p tab, ni plated cu substrate, alumina resistor, ni-cr or ruo conductor, cu leads, sn plated cu case, epoxy ul94-v0 insulated between tab and resistor * during soldering, the soldering temperature profle must not cause the metal tab of this device to exceed 220c.
mhp to-220 series issue may 2010 advanced film division ? 4222 south staples street ? corpus christi texas 78411 usa telephone: 361 992 7900 ? facsimile: 361 992 3377 ? website: www.irctt.com mhp to-220 series power resistor for additional information or to discuss your specific requirements, please contact our applications team using the contact details below. ordering data prefx tfp - mhp20lf - 1r50 - j - l04 style mhp20lf = 20w, to-220 style power resistor mhp35lf = 35w, to-220 style power resistor 07017 = dscc drawing (07017) ver. of above mhp50lf = 50w, to-220 style power resistor 07018 = dscc drawing (07018) ver. of above resistance code 4-digit resistance code. ex: 10r0 = 10 ? , 1k00 = 1k ? absolute tolerance code j = 5%; f = 1% standard packaging l04 = rohs compliant tube (50 pcs per tube) application notes: 1. insulating material is unnecessary between the heat sink and the tab, as the resistor flm is isolated by the internal alumina substrate. 2. when mounting with a fastener, thermal grease is recommended. 3. thermal design should satisfy the following equation: tab temperature (t t ) + [thermal resistance (r q jt ) x power applied (watts)] 155c over the full operating temperature of the application. 4. resistor flm temperature is not to exceed 155c during operation. 5. this product is rohs compliant by exemption according to rohs directive 2002/95/ec exemptions 5 & 7, as they apply to lead in glass and internal solder connections. temperature rise data power (watts) 140 120 100 80 60 40 20 0 0 5 10 15 20 25 30 35 40 45 50 mhp20 mhp35 mhp50 ?t film (c) resistor film temp rise with respect to flange temp power derating data 50 155 25 10 100 % of rated power flange temperature (c) 0.01 0.1 1.0 resistance (ohms) 250 200 150 100 50 tcr (ppm/c) 0 to 100c t ypical tcr f or lo w va lues tube packaging data a d c b e f g tube dimensions dim nom. (mm) tol. (mm) a 3.25 0.15 b 8.0 0.15 c 16.25 0.15 d 34.4 (34.0) e 6.4 (6.0) f r0.7 (r0.5) g 535.0 1.0
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