Panasonic P4S User manual

ACCTF24E-1
2017.10 industrial.panasonic.com/ac/e/
P
4S Shield type
Narrow
-pitch Connectors
Operation manual

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
1
Contents
01.Introduction.............................................................................................2
02.Precautions for equipment design ..........................................................3
03.Precautions for mounting and reflow soldering.....................................15
04.Precautions for mating..........................................................................23
Parts that require special confirmation are bold and underlined.

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
2
01. Introduction
The P4S Shield type narrow pitch connector has a terminal pitch of 0.4 mm, stacking
height of 1.5 mm, and width of 3.8 mm. Being both slim and equipped with a shield
plate, the P4S Shield type connector is designed for use in the connections between PC
boards and PC boards, and PC boards and flexible PC boards, compared to our P4S
series, noise immunity are required.
The molded part has been downsized and made thinner.
Select models best suited to the situation and conditions of use. Read this document
before designing the equipment and starting production.
●Difference between P4S and P4S Shield type
P4S P4S Shield type
Space-saving
◎
Width: 3.6 mm
◎
Width: 3.8 mm
Contact
reliability
◎
◎
Drop
resistance
○
Bellows contact:
Adopted
○
Bellows contact:
Adopted
Mountability
○
Requires dedicated
nozzle
○
Requires dedicated
nozzle
Noise
immunity
―
○
Multi-point ground +
Shield construction
Pin layout
○
Unlimited
△
Ground dedicated
terminal: available
3.6mm
3.8mm
Pickup space:
Narrow
Pickup space:
Narrow
Adopted Adopted
‘‘ that has a
strong resistance to adverse
environments
Bellows contact: Resistant to
drop impacts
V-notch: Resistant to the
entry of foreign materials and
flux.
Ni barrier: Resistant to solder
creep
Porosity treatment: Resistant
to gases
‘‘ that has a
strong resistance to adverse
environments
Bellows contact: Resistant to
drop impacts
V-notch: Resistant to the
entry of foreign materials and
flux.
Ni barrier: Resistant to solder
creep
Porosity treatment: Resistant
to gases

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
3
02. Precautions for equipment design
02-1. Precautions for mechanical design
1) Position of connectors on a board
(1)When using board to board connectors, a pair of board shall NOT be connected
with multiple connectors. Otherwise, misaligned connector positions may cause
mating failure or product breakage.
Panasonic corporation does not guarantee the failures caused by using the multiple
connectors.
(2)Solid board is tend to warp to vertical direction against mill direction of
production process. Some warp directions can cause poor soldering. Therefore,
arrange the board in a direction that can minimize warp.
This gap causes poor
soldering.
Tendency to warp easily to
production direction (horizontal direction)
It is possible to prevent poor soldering
by the arrangement of mounting
connector on the horizontal direction.
×

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
4
2) Position of connectors during mounting
When using a multiple-pin connector, it is preferable that the connector be placed
in a position that does not require swing motion of the mounter during pickup and
mounting. The inertial force of the swing motion of mounter often displaces the
connectors so that connector arrangement without swing operation is required.
●Connector arrangement with swing motion (rotation) during picking up and mounting
Pickup positions
Connector
Embossed tape
Main board
No inertial force
during mounting
Connector
Inertial force during
mounting

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
5
3) Prevention of problems during equipment operations
(1) Although this product is equipped with a simple locking mechanism, insert
cushioning material in the equipment enclosure in order to prevent the header
from being detached from the socket or damaged during operation.
- Please consider that there should be no gap between the enclosure and the board.
- It is recommended that holding force to the sub board be bigger than connector
insertion force.
- With regard to the cushioning material, select an appropriate shape, size and
material and position the center of the connector.（Unbalanced control causes
unmating.)
(2) When the board fixation is not enough as the lower chart , the connector is
affected by the load of the inertial force and might be damaged.
Please consider as follows.
Shock of fall
(1) If the both boards are not fixed sufficiently,
the connector is affected by the shock and
might be damaged.
(2)
If there is no gap between enclosure and sub
board （A＜B）
, the sub board strikes against
the enclosure. Due to the impact of its strike,
the connector is affected and might be
damaged.
<Prevention>
Please fix the both main and sub-board
sufficiently
(1) Fix the main board
(Fix the side that has the larger mass and
prevent the inertial motion of drop impact.)
(2) Hold with object such as rubber cushion
not to move by the drop impact.
(3) Guide of the board is to be A≧B, to
prevent the damage of the gap made by drop
impact.
×
A<B
○
A
≧
B
Sub-board
(FPC)
Connector
Enclosure
Main board
(not fixed)
Connector
Enclosure
Main board
(fixed)
Object to hold
Sub-board
(FPC
)
<Prevention>
Support plate
Main board
Enclosure
Flexible PC
board
Connector
Cushioning material

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
6
(3) For an easier connecting operation, it is recommended that the main board
be designed as follows:
- Provide a positioning mark.
- Place the connector in a position where a connector mating operation can be
easily checked.
Flexible PC board
Support plate
Main board
Positioning mark
-silk screening printing
-pattern (copper leaf)
・Positioning mark example

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
7
02-2. Board design
1) Circuit design
(1) Since this connector has multi-point ground construction, there is a dedicated
ground terminal.
When designing the terminal foot pattern, check the latest specifications and
examine the recommended foot pattern and dimensions of the metal mask opening.
Current recommendations are indicated on pages 13, 14 and 15.
(2) This connector is provided with a soldering terminal piece for preventing solder from
peeling off the terminal.
Make sure to design a foot pattern for the soldering terminal piece.
(3) Foot pattern arrangement in consideration for mounting
On the header, an area where through-holes are prohibited is indicated on the
underside of the connector. Make sure to note this area.
Since the terminal soldering face is configured to extend to the bottom face of
the molded part, a defect that cannot be reworked occurs if a solder bridge is
created on this part.
To lead out the pattern by a through-hole using the bottom face of the connector,
design by referring to the drawing below.
Socket
Header
Soldering terminal
Because of the small gap in this
area, soldering bridge may be
occurred by much solder and its
creeping.
When considering designing the
through holes under the
connector, it is recommended that
the pattern be thin in prohibited
area and through holes not be
placed in the prohibited area. It is
general that the pattern length of
this part be approx. one third
against the width of patterns for
contact.
Cross section view
Top view
The area where
through holes
are prohibited
Soldering terminal
Ground terminal

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
8
(4) Precautions for placing a through hole in prohibited area.
Header is constructed as shown in below, the post is extended to the bottom of
body and metal part of the terminal is exposed horizontally on the area from the
post on the bottom of body to the middle of foot pattern. Therefore, take the
following precautions.
①When placing the through holes that are not isolated, it is recommended that
the through holes not be interfered in contiguous contacts.
②Ｉt is recommended that the patterns not be interfered in contiguous contacts.
(5) Precautions for placing isolated through holes in prohibited area.
Header is constructed as shown in below, the post is extended to the bottom of
body and metal part of the terminal is exposed horizontally on the arm from the
post on the bottom of body to the middle of foot pattern. If an isolated through
hole is placed in prohibited area, the gap between pattern and contacts may
become too wide so that poor soldering may be occurred.
①
interference in
contiguous contacts
②
interference in
contiguous
contacts
Pulling out straight
not to interferer
Because of the wider
gap, poor soldering
may be occurred.
●It is recommended that through hole be placed close to the center, not in prohibited area.
There is the 50 μm gap
between bottom of
body and connection.
The bump between
bottom of body and
contacts terminal
absorb the gap of
through hole plating.
Cross section
view
Top view
The area where
through holes
are prohibited
When pulling out the isolated pattern,
do not touch the contiguous contacts.
●When through hole is located in prohibited area,
Cross
section
view

Operation manual for Narrow-pitch connectors P4S Shield type
Panasonic Corporation
industrial.panasonic.com/ac/e/
©Panasonic Corporation 2017 ACCTF24E-1 201710
9
(6) Please consider the following points when providing a through hole by extending
the foot pattern.
If a through-hole is created simply by extending
the foot pattern by the same width, solder is
absorbed into the through-hole during the reflow
process, which may cause defective soldering of
the terminals.
①Thin and extend the tip of the foot
pattern before creating a through-hole.
②Prevent solder from reaching the land
by using a cover lay or resist.
(7) Please consider the following point as a pattern
peeling preventive measure when removing the
connector.
- Make the foot pattern length longer than the
coverlay opening.
In general, at least 0.3 mm.
(8) Foot pattern dimensions indicated in the specification
intended to achieve the minimum area on the premise
that the reflow-soldering process is used. For manual
soldering or for ensuring solder reworkability, make
a longer pattern at the terminal tip.
In general, 1/3 the
terminal pattern
width.
- Secure space for applying the soldering
iron tip.
Terminal looseness and unwanted
solder creep are preventable by
applying the soldering iron tip here.