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Surface mounting condition, Bestar electronics industry co.,ltd, Temperature profile for a lead-free reflow process – BeStar SMT1411-05H3.5-05 LF User Manual

Page 5

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Checked by:

A

BESTAR ELECTRONICS INDUSTRY CO.,LTD

6

REV.

Date

www.be-star.com [email protected]

Note

5

Drawn

4

Approved by:

2

3

1

Page:05 of 08

Fig. 1 Recommended soldering Temperature-Time profile (Reflow soldering)

B

C

D

Drawn by:

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B

C

D

4.Surface Mounting Condition

Following soldering conditions are recommended; Refer to Fig.1

E

F

G

H

6

5

4

3

2

1

E

F

G

H

300

300

0

0

50

100

time [s]

200

150

250

350

400

max.90s

min.40s

T

e

m

p

e

ra

tu

re

[

]

ramp up to
150℃

min.3k/s

50

150

100

min.110s

min.300s

min.190℃

200

250

T(solid)min.217

max.260℃

ramp down

from T(solid)

min.6k/s

max.255℃

Temperature profile for a lead-free reflow process

Transducer

SMT1411-05H3.5-05 LF

DRG NO: BS/TET01.201B

09/09/10

魏奉玲

徐 波

陶红仲

Notice: All specification must be satisfied in this condition except SPL. SPL shall be 83dB or more.

In automated mounting of The SMD Sound Transducers on printed circuit boards, any
bending, expanding and pulling forces or shocks against the SMD Sound Transducers shall
be kept to a minimum to prevent them from electrical failures and mechanical damages of

the devices

Soldering(Reflow)

(1)Soldering of The SMD Sound Transducers shall conform to the soldering conditions in

the individual specifications.

(2)The SMD Sound Transducers are designed for "Reflow Soldering" under the
recommended solder profile

(3)SMD Sound Transducers which during the reflow soldering process are exposed to too
high soldering temperatures and/or too large temperature gradient such as rapid heating or
cooling may lead to electrical failures and mechanical damages of the devices.

SMT1411-05H3.5-05 LF

魏奉玲

09/09/10

B

RoHS

王善梅

04/02/10

A