GRM21BR71E474KC01L Murata Electronics, GRM21BR71E474KC01L Datasheet - Page 141

• Manufacturer Part Number: GRM21BR71E474KC01L
• Description: Cap Ceramic 0.47uF 25VDC X7R 10% SMD 0805 Embossed T/R
• Manufacturer: Murata Electronics
• Type: Flatr

Specifications of GRM21BR71E474KC01L

• Package/case: 0805
• Mounting: Surface Mount
• Capacitance Value: 0.47 uF
• Dielectric: X7R
• Voltage: 25 Vdc
• Product Length: 2 mm
• Product Height: 1.25 mm
• Tolerance: 10 %

!Note
• This PDF catalog is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our
• This PDF catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
sales representatives or product engineers before ordering.
!Note
4-2. Flow Soldering
1. When sudden heat is applied to the components, the
2. Excessively long soldering time or high soldering
3. When components are immersed in solvent after
4. Do not apply flow soldering to chips not listed in table 2.
Table 2
Recommended Conditions
5. Optimum Solder Amount for Flow Soldering
Preheating Peak Temperature
!Caution
Soldering Peak Temperature
Pb-Sn Solder: Sn-37Pb
Lead Free Solder: Sn-3.0Ag-0.5Cu
mechanical strength of the components will decrease
because a sudden temperature change causes
deformation inside the components. In order to prevent
mechanical damage in the components, preheating
should be required for both of the components and the
PCB board.
Preheating conditions are shown in table 2. It is required
to keep the temperature differential between the solder
and the component's surface ( T) as small as possible.
temperature can result in leaching of the outer electrodes,
causing poor adhesion or a reduction in capacitance
value due to loss of contact between electrodes and end
termination.
mounting, be sure to maintain the temperature difference
( T) between the component and solvent within the range
shown in the table 2.
5-1. The top of the solder fillet should be lower than the
Continued from the preceding page.
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering.
thickness of components. If the solder amount is
excessive, the risk of cracking is higher during board
bending or any other stressful condition.
GRM18/21/31
LLL21/31
GQM18/21
Atmosphere
Part Number
Pb-Sn Solder
240 to 250 C
90 to 110 C
Air
Temperature Differential
TV150 C
Lead Free Solder
100 to 120 C
250 to 260 C
N
2
[Standard Conditions for Flow Soldering]
[Allowable Flow Soldering Temperature and Time]
Temperature (D)
Preheating
Peak
Temperature
Soldering
Peak
Temperature
In a case of repeated soldering, the accumulated
soldering time must be within the range shown above.
280
270
260
250
240
230
220





























0
Adhesive






30-90 seconds
10
Preheating
T
20
Continued on the following page.
Soldering
5 seconds max.
Soldering Time (sec.)
30
Up to Chip Thickness
!Caution
Gradual
Cooling
Time
in section
40
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C02E.pdf
10.12.20