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Datasheet File OCR Text: |
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 Item Rated power Conditions Power must be derated according to the power derating curve in Figure 1 when ambient temperature exceeds 70C. 100 80 60 40 20 0 -55 Specifications 0.5W (1 / 2W) at 70C POWER LOAD (%) 0 70 100 125 AMBIENT TEMPERATURE (C) Fig.1 Rated voltage 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= Nominal resistance Operating temperature PxR E: Rated voltage (V) P: Rated power (W) R: Nominal resistance () Limiting element voltage 200V See Table 1. -55C~+125C 1/5 MCR50 Resistors Jumper type Resistance Rated current Operating temperature Max. 50m 3A -55C~+125C Table 1 Resistance tolerance F (1%) Resistance range () 0.1R0.15 0.15R<10 10R180k J (5%) 0.1R0.15 0.15R<1.0 1.0R<2.2 2.2R<10 10R330k (E24) (E24) (E24,96) (E24) (E24) (E24) (E24) (E24) Resistance temperature coefficient (ppm / C) 400200 250 100 400200 250 500350 500 200 350 330k Characteristics Item Resistance Variation of resistance with temperature Overload (2.0%+0.1) Guaranteed value Resistor type Jumper type J : 5% F : 1% Max. 50m Test conditions (JIS C 5201-1) JIS C 5201-1 4.5 JIS C 5201-1 4.8 Measurement : -55 / +25 / +125C JIS C 5201-1 4.13 Rated voltage (current) x2.5, 2s. Limiting Element Voltagex2 : 400V JIS C 5201-1 4.17 Rosin*Ethanol (25%WT) Soldering condition : 2355C Duration of immersion : 2.00.5s. JIS C 5201-1 4.18 Soldering condition : 2605C Duration of immersion : 101s. JIS C 5201-1 4.19 Test temp. : -55C~+125C 5cyc JIS C 5201-1 4.24 40C, 93%RH Test time : 1,000h~1,048h JIS C 5201-1 4.25.1 Rated voltage (current), 70C 1.5h : ON - 0.5h : OFF Test time : 1,000h~1,048h JIS C 5201-1 4.25.3 125C Test time : 1,000h~1,048h JIS C 5201-1 4.29 235C, Immersion cleaning, 50.5min. Solvent : 2-propanol JIS C 5201-1 4.33 See Table.1 Max. 50m Solderability A new uniform coating of minimum of 95% of the surface being immersed and no soldering damage. (1.0%+0.05) Max. 50m No remarkable abnormality on the appearance. (1.0%+0.05) (3.0%+0.1) Max. 50m Max. 100m Resistance to soldering heat Rapid change of temperature Damp heat, steady state (3.0%+0.1) Endurance at 70C (3.0%+0.1) Endurance (1.0%+0.05) Resistance to solvent Max. 100m Max. 100m Max. 50m Bend strength of the end face plating Max. 50m (1.0%+0.05) Without mechanical damage such as breaks. 2/5 MCR50 Resistors External dimensions (Units: mm) 1 0.60.25 2 No. 1 Material Resistive element (Qxide metal thick film) Silver palladium thick film electrode Nickel electrode Sn/Pb or Sn electrode Alumina substrate Overcoating (glass) 3 2 0.550.15 0.60.25 5.00.15 5 3 4 4 5 6 6 Packaging Reel Taping P0 P2 D E 0 2.50.15 08 06 04 B0 A B D 02 W F 02 04 06 08 A0 P1 K C (Units: mm) Label EIAJ ET-7200A compliant W 12.00.3 D0 F 5.50.05 P0 4.00.1 E 1.750.1 P1 4.00.1 A0 3.40.2 P2 2.00.05 B0 5.60.2 K Max. 1.1 (Units: mm) A B C D 0 180 -3 +1 60 0 130.3 130.2 1.5 +0.1 0 Makeup of the part number 3-digit or 4-digit IEC coding system Part No. Nominal resistance Packaging / Processing specifications Part No. MCR50 Code JZH Packaging Emboss tape Standard ordering unit(pcs) Resistance tolerance F 1% J 5% Specify "J" for jumper also. special part number Blank L 10 or more (F class) 1 or more (J class) Up to 10 (F class) Up to 1 (J class) 4,000 3/5 MCR50 Resistors Dimensions 5.40 5.30 5.20 LENGTH (mm) 2.80 JIS C 5201-1 4.4.2 SAMPLE SIZE : n=20pcs MICROMETER 2.70 2.60 2.50 2.40 2.30 2.20 0.1 1 10 100 1k 10k 100k 560k RESISTANCE () JIS C 5201-1 4.4.2 SAMPLE SIZE : n=20pcs MICROMETER THICKNESS (mm) 0.75 0.70 0.65 JIS C 5201-1 4.4.2 SAMPLE SIZE : n=20pcs MICROMETER 5.10 5.00 4.90 4.80 4.70 4.60 WIDTH (mm) 0.60 0.55 0.50 0.45 0.40 0.1 1 10 100 1k 10k 100k 560k 0.35 0.1 1 10 100 1k 10k 100k 560k RESISTANCE () RESISTANCE () Fig.2 Dimensions (length) Fig.3 Dimensions (width) Fig.4 Dimensions (thickness) Electrical characteristics 6.0 900 4.0 JIS C 5201-1 4.8 SAMPLE SIZE : n=10pcs 25C / -55C 25C / 125C TEMPERATURE COEFFICIENT (ppm/C) 4.0 DC RESISTANCE (%) JIS C 5201-1 4.5 SAMPLE SIZE : n=20pcs 20C 65%RH 700 500 300 100 -100 -300 -500 -700 -900 0.1 1 10 3.0 2.0 R/R (%) 2.0 0 -2.0 -4.0 -6.0 JIS C 5201-1 4.13 SAMPLE SIZE : n=10pcs RATED VOLTAGEx2.5 TIMES : 2s LIMITING ELEMENT VOLTAGEx2 : 400V 1.0 0 -1.0 -2.0 -3.0 0.1 1 10 100 1k 10k 100k 560k 100 1k 10k 100k 560k -4.0 0.1 1 10 100 1k 10k 100k 560k RESISTANCE () RESISTANCE () RESISTANCE () Fig.5 Resistance Fig.6 Variation resistance with temperature Fig.7 Overload 2.5 2.0 1.5 1.0 R/R (%) R/R (%) 2.0 JIS C 5201-1 4.18 SAMPLE SIZE : n=10pcs SOLDERING CONDITION : 260C 10s 4.0 1.5 1.0 JIS C 5201-1 4.19 SAMPLE SIZE : n=10pcs -55C / 125C 5cyc 3.0 2.0 R/R (%) JIS C 5201-1 4.24 SAMPLE SIZE : n=10pcs 40C 93%RH WITH NO LOAD 1,000h 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 0.1 1 10 100 1 k 10k 100k 560k 0.5 0 -0.5 -1.0 -1.5 -2.0 0.1 1 10 100 1k 10k 100k 560k 1.0 0 -1.0 -2.0 -3.0 -4.0 0.1 1 10 100 1k 10k 100k 560k RESISTANCE () RESISTANCE () RESISTANCE () Fig.8 Resistance to soldering heat Fig.9 Rapid change of temperature Fig.10 Damp heat, steady state 4/5 MCR50 Resistors 4.0 3.0 2.0 R/R (%) 4.0 2.5 JIS C 5201-1 4.25.3 SAMPLE SIZE : n=10pcs 125C WITH NO LOAD 1,000h 1.0 JIS C 5201-1 4.29 SAMPLE SIZE : n=10pcs IPA, 5min. JIS C 5201-1 4.25.1 SAMPLE SIZE : n=10pcs 70C 1,000h OVERLOAD : THE RATED VOLTAGE 3.0 2.0 R/R (%) 0 -1.0 -2.0 -3.0 -4.0 0.1 1 10 100 1k 10k 100k 560k 0 -1.0 -2.0 -3.0 -4.0 0.1 1 10 100 1k 10k 100k 560k R/R (%) 1.0 1.0 0 -1.0 -2.5 0.1 1 10 100 1k 10k 100k 560k RESISTANCE () RESISTANCE () RESISTANCE () Fig.11 Endurance at 70C Fig.12 Endurance Fig.13 Resistance to solvents 2.0 1.5 1.0 R/R (%) JIS C 5201-1 4.33 SAMPLE SIZE : n=10pcs ENDURANCE WITH 90mm WIDTH 0.5 0 -0.5 -1.0 -1.5 -2.0 0.1 1 10 100 1k 10k 100k 560k RESISTANCE () Fig.14 Bend strength of the end face plating 5/5 |
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