GRM552B11H102KA01D datasheet(157/221 Pages) MURATA

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5. Break Strength

(1) Test Method

Place the chip on a steel plate as illustrated on the right.

Increase load applied to a point near the center of the

test sample.

(2) Test Samples

GRM21 5C/R7/F5 Characteristics

GRM31 5C/R7/F5 Characteristics

(3) Acceptance Criteria

Define the load that has caused the chip to break or

crack, as the bending force.

(4) Explanation

Break strength, P, is proportionate to the square of the

thickness of the ceramic element and is expressed as a

curve of secondary degree.

The formula is:

W : Width of ceramic element

(mm)

T : Thickness of element

(mm)

L : Distance between fulcrums

(mm)

γ : Bending stress

(N/mm2)

(5) Results

Chip Size

Charac-

teristics

Charac-

teristics

Charac-

teristics

GRM21

2.7 1.5

1.5 1.2

300

180

160

GRM31

(N)

2γ WT2

(in mm)

GRM21

GRM31

6. Thermal Shock

(1) Test method

After applying flux (an ethanol solution of 25% rosin), dip

the chip in a solder bath (6

Z4 eutectic solder) in

accordance with the following

conditions:

(2) Test samples

GRM21 5C/R7/F5 Characteristics T=0.6mm typical

(3) Acceptance criteria

Visually inspect the test sample with a 60-power optical

microscope. Chips exhibiting breaks or cracks should be

determined to be defective.

Storage

scope

Amplifier

Load cell

Sample

Steel plate

Pressurizing

speed: 2.5mm/sec.

Loading Jig End

φ1.0mm

P0.5mm

100

120

140

0.4

0.8

1.2

1.6

Thickness of Ceramic Element (mm)

100

120

140

0.4

0.8

1.2

1.6

Thickness of Ceramic Element (mm)

Dipping Speed: 25mm/sec.

Chip Capacitor

Solder Bath

Solder

Temperature

Natural

Cooling

2 sec.

Time

∆T

Continued from the preceding page.

Continued on the following page.

Reference Data

155

!Note • 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.

• 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

sales representatives or product engineers before ordering.

• 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.

!Note

C02E.pdf

10.12.20

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