KRM55LR72A475KH01K Datasheet, PDF (1/3 Pages) Murata Manufacturing Co., Ltd. – High Capacitance for General Use KRM Series Specifications and Test Methods

High Capacitance for General Use KRM Series Specifications and Test Methods
No.
Item
Specifications
1
Operating
Temperature Range
2 Appearance
3 Dimensions
X5R Char.: -55 to +85°C
X6S Char.: -55 to +105°C
X7R Char.: -55 to +125°C
No defects or abnormalities
Within the specified dimensions
4 Dielectric Strength No defects or abnormalities
[KRM21, KRM31]
W.V.: 16V/25V/35V
5
Insulation Resistance
(I.R.)
: More than 50MΩ · μF
W.V.: 50V/100V
: More than 500MΩ · μF
[KRM55]
More than 100MΩ · μF
6 Capacitance
Within the specified tolerance
7
Dissipation
Factor (D.F.)
[KRM21, KRM31]
W.V.: 16V/25V/35V
: 0.15 max.
W.V.: 50V
: 0.025 max.
W.V.: 100V
: 0.05 max.
[KRM55]
0.025 max.
Capacitance
8 Temperature
Characteristics
X5R Char.: Within ±15% (Temp. Range: -55 to +85°C)
X6S Char.: Within ±22% (Temp. Range: -55 to +105°C)
X7R Char.: Within ±15% (Temp. Range: -55 to +125°C)
9
Strength of Metal
Terminal
Termination not to be broken or loosened
Test Method
Reference temperature: 25°C
Visual inspection
Using calipers and micrometers
No failure should be observed when voltage in the table is
applied between the terminations for 1 to 5 sec., provided the
charge/discharge current is less than 50mA.
Rated Voltage
DC16V, DC25V, DC35V,
DC50V, DC63V
DC100V, DC250V
DC630V
DC1000V
Test Voltage
250% of the reted voltage
200% of the reted voltage
150% of the reted voltage
120% of the reted voltage
The insulation resistance should be measured with Rated
Voltage and within 60±5 sec. of charging.
The capacitance/D.F. should be measured at reference
temperature at the meaning frequency and voltage shown in
the table.
Nominal
Capacitance
C>10μF
CV10μF
Measuring
Frequency
120±24Hz
1±0.2kHz
Measuring
Voltage
AC0.5±0.1V(r.m.s.)
AC1.0±0.2V(r.m.s.)
The capacitance measurement should be made at each step
specified in the Table.
Step
1
2
3
4
5
Temperature (°C)
25±2
Min. Operating Temp. ±3
25±2
Max. Operating Temp. ±2
25±2
U*ÀiÌÀi>̓i˜Ì
Perform a heat treatment at 150+0/–10°C for 60±5 min. and
then let sit for 24±2 hrs. at room condition. (*1)
A static load of 10N using a pressure rod should be applied to
the center in the direction of the arrow and held for 10 s.
Pressure
Pressure Rod
R 0.5
0.5L
10
Adhesive Strength
of Termination
No removal of the terminations or other defect should occur.
Solder the capacitor to the testing jig (glass epoxy board) shown
in Fig. 1.
Then apply 10N force in the direction of the arrow.
The soldering should be done using the reflow method and
should be conducted with care so that the soldering is uniform
and free defects such as heat shock.
10N, 10T1s
Glass Epoxy Board
(*1) "Room condition" Temperature: 15 to 35°C, Relative humidity: 45 to 75%, Atmospheric pressure: 86 to 106kPa
Fig. 1
Continued on the following page.