LQH32DN1R0M53L 데이터 시트보기 (PDF) - Unspecified
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LQH32DN1R0M53L Datasheet PDF : 7 Pages
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SpecNo.JELF243A-0118A-01
Reference Only
11.4 Reworking with soldering iron.
The following conditions must be strictly followed when using a soldering iron.
Pre-heating
150°C,1 min
Tip temperature
350°C max.
Soldering iron output
80W max.
Tip diameter
φ3mm max.
Soldering time
3(+1,-0)s
Times
2 times
Note : Do not directly touch the products with the tip of the soldering iron in order to prevent the crack
on the products due to the thermal shock.
11.5 Solder Volume
・Solder shall be used not to be exceeded the upper limits as shown below.
・Accordingly increasing the solder volume, the mechanical stress to Chip is also increased.
Exceeding solder volume may cause the failure of mechanical or electrical performance.
Tt
Upper Limit
Recommendable
1/3T≦ t ≦T
(T: Lower flange thickness)
P6/7
11.6 Product's location
The following shall be considered when designing and laying out P.C.B.’s.
(1) P.C.B. shall be designed so that products are not subject to the mechanical stress due to warping the board.
［Products direction］
a
b
Products shall be located in the sideways
direction (Length:a<b) to the mechanical stress.
〈Poor example〉
〈Good example〉
(2) Products location on P.C.B. separation
Products (A,B,C,D) shall be located carefully
so that products are not subject to the
mechanical stress due to warping the board.
Because they may be subjected the mechanical
stress in order of A>C>B ≅ D.
C
Seam
B
bA
a
D
Slit Length:a< b
11.7 Cleaning Conditions
Products shall be cleaned on the following conditions.
(1) Cleaning temperature shall be limited to 60°C max.(40°C max for IPA.)
(2) Ultrasonic cleaning shall comply with the following conditions with avoiding the resonance phenomenon
at the mounted products and P.C.B.
Power : 20 W / l max. Frequency : 28kHz to 40kHz Time : 5 minutes max.
(3) Cleaner
1. Alternative cleaner
・Isopropyl alcohol (IPA)
2. Aqueous agent
・PINE ALPHA ST-100S
(4) There shall be no residual flux and residual cleaner after cleaning.
In the case of using aqueous agent, products shall be dried completely after rinse with de-ionized
water in order to remove the cleaner.
(5) Other cleaning
Please contact us.
MURATA MFG.CO., LTD
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