MCR50 resistors thick film rectangular MCR50 (5025 size : 1 / 2w) ! features 1) made of same material as the general purpose chip resistors (mcr10 / 18). 2) highly reliable chip resistor ruthenium oxide dielectric offers superior resistance to the elements. 3) electrodes not corroded by soldering suitable for re-flow soldering. 4) rohm resistors have approved iso-9001 certification. design and specifications are subject to change without notice. carefully check the specification sheet supplied with the product before using or ordering it. ! ! ! ! ratings 0.5w (1 / 2w) ? 55 c~ + 125 c at 70 c item conditions specifications rated power rated voltage operating temperature nominal resistance see table 1. 200v limiting element voltage power must be derated according to the power derating curve in figure 1 when ambient temperature exceeds 70?c. the voltage rating is calculated by the following equation. if the value obtained exceeds the limiting element voltage, the voltage rating is equal to the maximum operating voltage. e: rated voltage (v) p: rated power (w) r: nominal resistance ( ? ) e = p r 0 20 40 60 80 100 ? 55 0 70 100 125 ambient temperature ( c) power load (%) fig.1
MCR50 resistors max. 50m ? 3a ? 55 c~ + 125 c jumper type resistance rated current operating temperature table 1 resistance tolerance resistance range ( ? ) resistance temperature coefficient (ppm / ? c ) f ( 1%) j ( 5%) 10 r 330k (e24) (e24) (e24) (e24) 0.1 r 0.15 (e24) 400 200 0.15 r < 10 (e24) 250 0.1 r 0.15 (e24) 400 200 0.15 r < 1.0 (e24) 250 10 r 180k (e24,96) 100 200 2.2 r < 10 500 1.0 r < 2.2 500 350 350 330k < r 560k ? ? ? ? before using components in circuits where they will be exposed to transients such as pulse loads (short-duration, high-level lo ads), be certain to evaluate the component in the mounted state. in addition, the reliability and performance of this component cannot be guaranteed if it is u sed with a steady state voltage that is greater than its rated voltage. ! ! ! ! characteristics item test conditions (jis c 5201-1) resistor type guaranteed value jumper type resistance variation of resistance with temperature solderability damp heat, steady state endurance at 70 c endurance rapid change of temperature bend strength of the end face plating resistance to solvent resistance to soldering heat overload (2.0% + 0.1 ? ) max. 50m ? (1.0% + 0.05 ? ) (3.0% + 0.1 ? ) max. 50m ? max. 100m ? j : 5% f : 1% see table.1 no remarkable abnormality on the appearance. a new uniform coating of minimum of 95% of the surface being immersed and no soldering damage. without mechanical damage such as breaks. max. 50m ? jis c 5201-1 4.5 jis c 5201-1 4.8 measurement : ? 55 / + 25 / + 125 c jis c 5201-1 4.18 soldering condition : 260 5 c duration of immersion : 10 1s. jis c 5201-1 4.24 40 c, 93%rh test time : 1,000h~1,048h (3.0% + 0.1 ? ) (3.0% + 0.1 ? ) (1.0% + 0.05 ? ) (1.0% + 0.05 ? ) (1.0% + 0.05 ? ) max. 100m ? max. 100m ? max. 50m ? max. 50m ? max. 50m ? jis c 5201-1 4.25.1 rated voltage (current), 70 c 1.5h : on ? 0.5h : off test time : 1,000h~1,048h jis c 5201-1 4.25.3 125 c test time : 1,000h~1,048h jis c 5201-1 4.29 23 5 c , immersion cleaning, 5 0.5min. solvent : 2-propanol jis c 5201-1 4.19 test temp. : ? 55 c ~ + 125 c 5cyc jis c 5201-1 4.33 jis c 5201-1 4.17 rosin ethanol (25%wt) soldering condition : 235 5 c duration of immersion : 2.0 0.5s. jis c 5201-1 4.13 rated voltage (current) 2.5, 2s. limiting element voltage 2 : 400v
MCR50 resistors ! ! ! ! external dimensions (units: mm) 0.6 0.25 2.5 0.15 0.55 0.15 0.6 0.25 5.0 0.15 1 2 4 5 6 3 no. material resistive element (qxide metal thick film) silver palladium thick film electrode nickel electrode sn/pb or sn electrode alumina substrate overcoating (glass) 1 2 3 4 5 6 ! ! ! ! packaging 0 2 0 4 0 6 0 8 0 2 0 4 0 6 0 8 c abd abcd a 0 p 1 p 0 p 2 b 0 f w k e d 0 label reel taping eiaj et-7200a compliant 13 0.3 180 0 ? 3 60 +1 0 13 0.2 (units: mm) (units: mm) wf ea 0 b 0 d 0 p 0 p 1 p 2 k 12.0 0.3 5.5 0.05 1.75 0.1 3.4 0.2 5.6 0.2 4.0 0.1 4.0 0.1 2.0 0.05 max. 1.1 1.5 +0.1 0 ! ! ! ! makeup of the part number MCR50 jzh 4,000 f 1% 5% j 10 ? or more (f class) 1 ? or more (j class) up to 10 ? (f class) up to 1 ? (j class) part no. paper tape code packaging standard ordering unit(pcs) blank l specify "j" for jumper also. packaging / processing specifications resistance tolerance special part number nominal resistance part no. 3-digit or 4-digit iec coding system
MCR50 resistors ! ! ! ! dimensions 4.60 4.70 4.80 4.90 5.00 5.10 5.20 5.30 5.40 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) length (mm) jis c 5201-1 4.4.2 sample size : n = 20pcs micrometer fig.2 dimensions (length) 2.20 2.30 2.40 2.50 2.60 2.70 2.80 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) width (mm) jis c 5201-1 4.4.2 sample size : n = 20pcs micrometer fig.3 dimensions (width) 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) thickness (mm) jis c 5201-1 4.4.2 sample size : n = 20pcs micrometer fig.4 dimensions (thickness) ! ! ! ! electrical characteristics ? 6.0 ? 4.0 ? 2.0 0 2.0 4.0 6.0 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) dc resistance (%) jis c 5201-1 4.5 sample size : n = 20pcs 20 c 65%rh fig.5 resistance ? 900 ? 700 ? 500 ? 300 ? 100 100 300 500 700 900 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) temperature coefficient (ppm/ c) jis c 5201-1 4.8 sample size : n = 10pcs 25 c / ? 55 c 25 c / 125 c fig.6 variation resistance with temperature ? 4.0 ? 3.0 ? 2.0 ? 1.0 0 1.0 2.0 3.0 4.0 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) ? r/r (%) jis c 5201-1 4.13 sample size : n = 10pcs rated voltage 2.5 times : 2s limiting element voltage 2 : 400v fig.7 overload ? 2.5 ? 2.0 ? 1.5 ? 1.0 ? 0.5 0 0.5 1.0 1.5 2.5 2.0 0.1 1 10 100 1 k 10k 100k 560k resistance ( ? ) ? r/r (%) jis c 5201-1 4.18 sample size : n = 10pcs soldering condition : 260 c 10s fig.8 resistance to soldering heat ? 2.0 ? 1.5 ? 1.0 ? 0.5 0 0.5 1.0 1.5 2.0 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) ? r/r (%) jis c 5201-1 4.19 sample size : n = 10pcs ? 55 c / 125 c 5cyc fig.9 rapid change of temperature ? 4.0 ? 3.0 ? 2.0 ? 1.0 0 1.0 2.0 3.0 4.0 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) ? r/r (%) jis c 5201-1 4.24 sample size : n = 10pcs 40 c 93%rh with no load 1,000h fig.10 damp heat, steady state
MCR50 resistors ? 4.0 ? 3.0 ? 2.0 ? 1.0 0 1.0 2.0 3.0 4.0 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) ? r/r (%) jis c 5201-1 4.25.1 sample size : n = 10pcs 70 c 1,000h overload : the rated voltage fig.11 endurance at 70 c ? 4.0 ? 3.0 ? 2.0 3.0 4.0 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) jis c 5201-1 4.25.3 sample size : n = 10pcs 125 c with no load 1,000h ? 1.0 0 1.0 2.0 ? r/r (%) fig.12 endurance ? 2.5 ? 1.0 0 1.0 2.5 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) ? r/r (%) jis c 5201-1 4.29 sample size : n = 10pcs ipa, 5min. fig.13 resistance to solvents ? 2.0 ? 1.5 ? 1.0 ? 0.5 0 0.5 1.0 1.5 2.0 0.1 1 10 100 1k 10k 100k 560k resistance ( ? ) ? r/r (%) jis c 5201-1 4.33 sample size : n = 10pcs endurance with 90mm width fig.14 bend strength of the end face plating
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