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:
3
OF
18
Copyright© 2007 Hirose Electric Co., Ltd. All rights reserved.
1
Design requirements
1.1 Mechanical requirements
1.1.1 FPC mounting
Attachment of a stiffener larger than the connector outline is recommended to the reverse face of the
connector mounted area. Solder crack and contact looseness could occur due to the possible
mechanical stress applied to contacts during un-mating process when this product is mounted onto
low-rigidity or thin FPC. Under the circumstances, mount plug connector of which retention force is
higher than the other to the FPC. 0.3 mm or thicker glass epoxy stiffener (up to 50 pin), and 0.5mm or
thicker glass epoxy stiffener (over 60 pin) is recommended.
1.1.2 Unexpected disengaging prevention
Connector could be disengaged if momentary impact, caused by dropping etc., is applied to the
connectors in use. In order to prevent connectors from disengaging, make sure to place a buffer
material such as sponge to press down the connectors in mating direction.
Oct.1.2021 Copyright 2021 HIROSE ELECTRIC CO., LTD. All Rights Reserved.
