GRJ552B11H102KA01D datasheet(158/221 Pages) MURATA

158 / 221 page

7. Solder Heat Resistance

(1) Test Method

q Reflow soldering:

Apply about 300

µm of solder paste over the alumina

substrate. After reflow soldering, remove the chip and

check for leaching that may have occurred on the

outer electrode.

w Flow soldering:

After dipping the test sample with a pair of tweezers in

wave solder (eutectic solder), check for leaching that

may have occurred on the outer electrode.

(2) Test samples

GRM21: For flow/reflow soldering T=0.6mm

(3) Acceptance criteria

The starting time of leaching should be defined as the

time when the outer electrode has lost 25% of the total

edge length of A-B-C-D as illustrated:

e Dip soldering:

After dipping the test sample with a pair of tweezers in

static solder (eutectic solder), check for leaching that

may have occurred on the outer electrode.

r Flux to be used: An ethanol solution of 25% rosin.

(4) Results

Reflow Soldering

Dip Soldering

Flow Soldering

100

200

240

280

320

360

Temperature Differential

∆T (D)

Outer Electrode

280

270

260

250

240

230

220

210

Leaching Starting Time (sec.)

280

270

260

250

240

230

220

210

10203040

5060

280

270

260

250

240

230

220

210

10203040

5060

120

180

240

Leaching Starting Time (sec.)

Continued from the preceding page.

Continued on the following page.

Reference Data

156

!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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