Datasheet > LQH43CN6R8M03#

LQH43CN6R8M03#

更新时间： 2023-09-03 20:28:21

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村田 - MURATA		/
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LQH43CN6R8M03# 数据手册

SpecNo.JELF243A-0042R-01

P7/9

11.4 Reworking with soldering iron.

The following conditions must be strictly followed when using a soldering iron.

Pre-heating

150°C,1 min

350°C max.

80W max.

3mm max.

3(+1,-0)s

Tip temperature

Soldering iron output

Tip diameter

Soldering time

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.

Upper Limit

Recommendable

1/3T≦t≦T

(T: Lower flange thickness)

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］

Electrode

Products shall be locatedin the sideways

direction (Length:a b) to the mechanical stress.



(Good example)

Poor example）

Electrode

(2) Components location on P.C.B. separation.

It is effective to implement the following measures, to reduce stress in separating the board.

It is best to implement all of the following three measures; however, implement as many measures

as possible to reduce stress.

Contents of Measures

Stress Level

(1) Turn the mounting direction of the component parallel to

the board separation surface.

D 1

(2) Add slits in the board separation part.

(3) Keep the mounting position of the component away from

the board separation surface.

Seam

1 A > D is valid when stress is added vertically to

the perforation as with Hand Separation.

If a Cutting Disc is used, stress will be diagonal to

the PCB, therefore A > D is invalid.

Electrode

Slit

(3) Mounting Components Near Screw Holes

When a component is mounted near a screw hole,

it may be affected by the board deflection that occurs

during the tightening of the screw. Mount the component

in a position as far away from the screw holes as possible.

Recommended

Screw Hole

MURATA MFG.CO., LTD

1...4 5 678 9

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