Chip Multilayer Ceramic Capacitors for General Purpose GRM21A7U2E391JW31 (0805, U2J:EIA, 390pF, DC250V) : packaging code Reference Sheet 1.Scope This product specification is applied to Chip Multilayer Ceramic Capacitors used for General Electronic equipment. Do not use these products in any automotive power train or safety equipment including battery chargers for electric vehicles and plugin hybrids. 2.MURATA Part NO. System (Ex.) GRM 21 A 7U 2E 391 J W31 D (1)L/W (2)T (3)Temperature (4)Rated (5)Nominal (6)Capacitance (7)Muratas Control (8)Packaging Code Dimensions Dimensions Characteristics Voltage Capacitance Tolerance Code 3. Type & Dimensions (Unit:mm) (1)-1 L (1)-2 W (2) T e g 2.00.2 1.250.2 1.0+0/-0.3 0.3 min. 0.7 min. 4.Rated value (3) Temperature Characteristics Specifications and Test (4) (6) (Public STD Code):U2J(EIA) (5) Nominal Methods Rated Capacitance Temp. coeff Temp. Range Capacitance (Operating Voltage Tolerance Temp. Range) orCap. Change (Ref.Temp.) 25 to 125 C -750120 ppm/C DC 250 V 390 pF 5 % -55 to 125 C (25 C) Soldering Method Flow / Reflow 5.Package mark (8) Packaging Packaging Unit f180mm Reel D 4000 pcs./Reel PAPER W8P4 f330mm Reel J 10000 pcs./Reel PAPER W8P4 Product specifications in this catalog are as of Sep.25,2018,and are subject to change or obsolescence without notice. Please consult the approval sheet before ordering. Please read rating and Cautions first. GRM21A7U2E391JW31-01 1 Specifications and Test Methods Test Method Item Specification No (Ref. Standard:JIS C 5101, IEC60384 1 Appearance No defects or abnormalities. Visual inspection. 2 Dimension Within the specified dimensions. Using calipers and micrometers. 3 Voltage proof No defects or abnormalities. Measurement Point : Between the terminations Test Voltage : 200% of the rated voltage (Rated voltage:DC200V,DC250V) 150% of the rated voltage (Rated voltage:DC500V,DC630V) 130% of the rated voltage (Rated voltage:DC1kV,DC2kV) (Rated voltage(7U only):DC3.15kV) Applied Time : 1 to 5 s Charge/discharge current : 50mA max. 4 Insulation Resistance(I.R.) More than 10000M or 100MF Measurement Point : Between the terminations (Whichever is smaller) Measurement Voltage : DC200+/-20V(Rated voltage:DC200V) DC250+/-25V(Rated voltage:DC250V) DC500+/-50V (Rated voltage:DC500V,DC630V,DC1kV,DC2kV) (Rated voltage(7U only):DC3.15kV) Charging Time : 60+/-5s Measurement Temperature: Room Temperature 5 Capacitance Shown in Rated value. Measurement Temperature: Room Temperature Frequency Capacitance Voltage 1.0+/-0.1Mhz C 1000pF AC 0.5 to 5.0V(r.m.s) 6 Q 1000 min. 1.0+/-0.1khz C 1000pF AC 1.0+/-0.2V(r.m.s) 7 Temperature 5C:0+/-30 ppm/C (Temp.Range:+25 to +125C) The capacitance change should be measured after 5 min. Characteristics 0+30/-72 ppm/C (Temp.Range:-55 to +25C) at each specified temp. stage. of Capacitance Capacitance value as a reference is the value in step 3. 7U-750+/-120 ppm/C (Temp.Range:+25 to +125) -750+120/-347 ppm/C (Temp.Range:-55 to +25) Step Temperature( C) 1 Reference Temp.+/-2 2 Min.Operating Temp. +/-3 3 Reference Temp. +/-2 4 Max.Operating Temp. +/-3 5 Reference Temp. +/-2 8 Vibration Appearance No defects or abnormalities. Solder the capacitor on the test substrate A shown inComplement of Test Capacitance Within the specified initial value. method. Q Within the specified initial value. Kind of Vibration : A simple harmonic motion 10Hz to 55Hz to 10Hz (1min) Total amplitude : 1.5mm This motion should be applied for a period of 2h in each 3 mutually perpendicular directions(total of 6h). 9 Solderability Test Method : Solder bath method 95% of the terminations is to be soldered evenly and continuously. Flux: Solution of rosin ethanol 25(wt)% Preheat : 80 to 120 for 10s to 30s Solder : Sn-3.0Ag-0.5Cu (Lead Free Solder) Solder Temp. : 245+/-5 Immersion time : 2+/-0.5s Immersing in speed : 25+/-2.5mm/s. 10 Resistance Appearance No defects or abnormalities. Test Method : Solder bath method to Solder : Sn-3.0Ag-0.5Cu (Lead Free Solder) Soldering Capacitance Within +/-2% or +/-0.3pF (Whichever is larger) Solder Temp. : 260+/-5 Heat Change Immersion time : 10+/-1s Immersing in speed : 25+/-2.5mm/s. Q Within the specified initial value. Exposure Time : 24+/-2h at room condition*. I.R. Within the specified initial value. Preheat : GRM31 size max.: 120 to 150 for 1 min GRM32 size min. : 100 to 120 for 1 min Voltage proof No defects. and 170 to 200 for 1 min *Room Condition : Temperature:15 to 35C, Relative humidity:45 to 75%, Atmosphere pressure:86 to 106kPa JEMCGS-04233D 2