TITLE
:
DF40 Series Guideline
ETAD-H1015-00
HIROSE ELECTRIC CO.,LTD.
PRODUCT
:
BOARD TO BOARD/FPC CONNECTOR,
Pitch: 0.4mm, Width: 3.38mm,
Stacking height: 1.5-4.0mm
PAGE:
18
OF
18
Copyright© 2007 Hirose Electric Co., Ltd. All rights reserved.
5
Additional information
5.1 PWB cleaning
1) Control the cleaning liquid in order not to contaminate the connector contact area by cleaning
liquid.
2) Some cleaning liquid is too strong and may dissolve connectors. Cleaning liquid made from pure
water is recommended. Before using other cleaning liquid, please contact us.
3) Alcohol cleaning could make the connector housing white.
5.2 PWB handling
In the operation which could give stress to the mounted connector, including cutting or bending PWB,
keep soldering area from mechanical stress.
5.3 Connector storage
1) Void could be occurred on the housing surface due to high heat during reflow. In order to prevent
this problem, avoid storing connectors under humid condition. For long term storage, keep them
at humidity manageable place.
2) Depending on the production LOT of the connector, its housing color could be varied, or ultraviolet
during storage changes connector surface color. However, these color differences do not affect
the connector performance.
3) During PWB assembly and module assembly, make sure not to apply excessive stress to the
stored connectors.
4) Avoid storing connectors in dusty area, or it could cause contact failure.
5.4 Connector continuity test
Please use our inspection connector DF40J series for the continuity inspection of the connector. The
top rounded part of the contact-pin on the header side might be covered with resin for manufacturing
reasons. Therefore, please do not apply the inspection prove-pin to the contact-pin top rounded part.
Oct.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
