features ? to-220 / to-247 style power package ? molded case for protection and easy mounting ? electrically isolated case ? non-inductive design part numbering system construction power package product type power resistance tolerance packaging code tcr (ppm/ c) resistance code 20: 20 watts 30: 30 watts 35: 35 watts 50: 50 watts 100: 100 watts d: 0.5% f: 1% j: 5% k: 10% b: bulk d: 50 e: 100 f: 200 g: 300 -:no specified r100: 0.1 ? 0100: 10 ? 4700: 470 ? 1001: 1000 ? 1002: 10000 ? h: mounting hole type power package mtr20 to-220 mtr30 to-220 mtr35 to-220 mtr50 to-220 mtr50-h to-220 mtr100 to-247 1 alumina substrate 3 lead 2 resistor layer 4 molded package mtr series power resistors mtr 20 j b 1001 d -h rev.7
environmental characteristics item requirement test method temperature coefficient of resistance (t.c.r.) as specified. referenced to 25c, r taken at +105c short time overload r0.3% 2 times rated power with applied voltage not to exceed 1.5 times maximum continuous operating voltage for 5 seconds load life r1.0% 2,000 hours at rated power damp heat with load r0.5% 40 2 c, 90~95% r.h. max. working voltage for 1000 hrs with 1.5 hrs ?on? and 0.5 hrs ?off? solderability 90% min. coverage 2455c for 3 seconds thermal shock r0.3% -65c ~150c, 100 cycles terminal strength r0.2% (pull test) 2.4n vibration, high frequency r0.2% 20g peak ? lead material: tinned copper ? maximum torque: 0.9 n-m ? without a heat sink, when in free air at 25c, it is rated for 2.25w. ? the case temperature is to be used for the definition of the applied power limit. ? the case temperature measurement must be made with a thermocouple contacting the center of the component mounted on the designed heat sink. ? thermal grease should be applied properly. mtr series power resistors rev.7
mtr20 dimensions derating curve electrical characteris tics specifications resistance range item type 0.5% 1% 5% 10% tcr (ppm/ c) - - 0.05? -1 ? - >1? -3 ? 300 - >3? -10 ? 100 200 mtr20 >10 ? ?10k ? 50 100 200 operating voltage: 350vmax dielectric strength: 1800v ac insulation resistance: 10g ? ?min. working temperature range: -65c to +150c resistance value< 1 ? is available type weight (g) (1000pcs) mtr20 1290 power resistors mtr series rev.7
mtr30 dimensions derating curve electrical characteris tics specifications operating voltage: 420vmax dielectric strength: 1800v ac insulation resistance: 10g? ? min. working temperature range: -65c to +150c resistance value < 1 ? is available type weight (g) (1000pcs) mtr30 1155 resistance range item type 0.5% 1% 5% 10% tcr (ppm/ c) - - 0.05? -1 ? - >1? -3 ? 300 - >3? -10 ? 100 200 mtr30 >10 ? ?10k ? 50 100 200 mtr series power resistors rev.7
mtr35 dimensions derating curve electrical characteris tics specifications tcr (ppm/c) item type resistance range 0.5% 1% 5% 10% 0.05? - 0.1 ? >0.1 ? - 1 ? >1 ? - 3 ? 300 300 300 >3 ? - 10 ? 100 200 100 200 100 200 mtr >10 ? - 10k ? 50 100 200 50 100 200 50 100 200 50 100 200 operating voltage: 350v max dielectric strength: 1800v ac insulation resistance: 10g ?? min. working temperature range: -65c to +150c resistance value < 1 ? is available type weight (g) (1000pcs) mtr35 1902 mtr series power resistors rev.7
mtr50 dimensions derating curve electrical characteris tics specifications operating voltage: 350v max dielectric strength: 1800v ac insulation resistance: 10g? ? min. working temperature range: -65c to +150c resistance value < 1 ? is available type weight (g) (1000pcs) mtr50 1290 resistance range item type 0.5% 1% 5% 10% tcr (ppm/ c) - - 0.1? -1 ? - >1? -3 ? 300 - >3? -10 ? 100 200 mtr50 >10 ? ?10k ? 50 100 200 mtr series power resistors 0.115 0.135" (2.92 3.44mm) 0.06 0.08" (1.52 2.04mm) 0.016 0.024" (0.40 0.60mm) 0.026 0.034" (0.66 0.86mm) 0.45 0.55" (11.43 13.97mm) 0.40 0.42" (10.15 10.67mm) 0.19 0.21" (4.82 5.34mm) 0.045 0.055" (1.14 1.40mm) 0.63 0.65" (16.00 16.52mm) 0.10 0.16" (2.54 4.06mm) rev.7
mtr50h dimensions derating curve electrical characteris tics specifications operating voltage: 350v max dielectric strength: 1800v ac insulation resistance: 10g? ? min. working temperature range: -65c to +150c resistance value < 1 ? is available type weight (g) (1000pcs) mtr50-h 2770 resistance range item type 0.5% 1% 5% 10% tcr (ppm/ c) - - 0.1? -1 ? - >1? -3 ? 300 - >3? -10 ? 100 200 mtr50 >10 ? ?10k ? 50 100 200 mtr series power resistors 0.045 0.055" (1.14 1.40mm) 0.115 0.135" (2.92 3.44mm) 0.06 0.08" (1.52 2.04mm) 0.19 0.21" (4.82 5.34mm) 0.45 0.55" (11.43 13.97mm) 0.026 0.034" (0.66 0.86mm) 0.10 0.16" (2.54 4.06mm) 0.63 0.65" (16.00 16.52mm) 0.40 0.42" (10.15 10.67mm) 0.115 0.135" (2.92 3.44mm) 0.121 0.129" (3.08 3.28mm) 0.016 0.024" (0.40 0.60mm) (2.00mm) (1.50mm) rev.7
mtr100 dimensions type weight (g) (1000pcs) mtr100 3381 derating curve electrical characteris tics specifications resistance range item type 1% 5% 10% tcr (ppm/ c) - 0.05? -1 ? >1 ? -3 ? 300 >3 ? -10 ? 100 200 mtr100 >10 ? ?10k ? 50 100 200 operating voltage: 700v max dielectric strength: 1800v ac insulation resistance: 10g? ? min. working temperature range: -65c to +175c resistance value < 1 ? is available mtr series power resistors rev.7
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