Catalogue
Nr. 1007-d
ODU MINI-FLAKAFIX
Board-to-Cable Connector
Grid 1.27 x 2.54 mm
ROH
Conf S
orm
ODU-Steckverbindungssysteme GmbH & Co. KG, Pregelstr. 11, D-84453 Mühldorf/Inn,
Telefon: +49/86 31/61 56-0, Telefax: +49/86 31/61 56 49 · E-Mail: zentral@odu.de, www.odu.de
ODU MINI-FLAKAFIX
Table of contents
Experience with SMT connectors of the ODU MINI-FLAKAFIX series
Examples for applications
Technical data
Header straight for wave soldering
Header right-angle for wave soldering
Header straight for SMT
Socket connector with IDC termination
Transition connector
Locking clip
Locking latches
Strain relief
Ribbon cable
Special versions
Tooling
Packaging
Ordering key
3
6
10
11
12
13
14
15
16
17
18
19
20
23/24
25
26
All dimensions in mm.
All figures are illustrations.
Changes reserved.
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ODU-Steckverbindungssysteme GmbH & Co. KG, Pregelstr. 11, D-84453 Mühldorf/Inn, Tel. +49/86 31/ 6 1 5 6 - 0 , Fax +49/86 31/61 56 49, www.odu.de
ODU MINI-FLAKAFIX
Experiences with SMT Connectors
The MINI-FLAKAFIX Series connectors offered by ODU are
able to connect PCB´s over longer distances as well as indi-
vidual and different angles.
We offer two solutions to connect the cable to the PCB.
1.) Mated pair with male part (soldered)
and female part (with cable)
Part
Solder lead
How to solder headers on the PCB.
There are three different possibilities:
Wave soldering
Socket with IDC termination
SMT-Header
Conductor
track
PCB
Wave ca. 260° C
Soldering
pads
Pin-in-Paste (THC) soldering
Infra-red or
hot air or
vapor-phase
Solder lead
2.) Transition connector soldered directly to the
circuit board
Paste
PCB
Conductor
tracks
Solder
PCB connector = Transition connector
Surface Mount soldering
Paste
Solder lead
Reflow
Conductor
track
PCB
Guide pins
Soldering-pad
During the last years we have made the following
experiences:
– the mateable connections (male/female) are used more
widely than the transition connectors by a ratio of 10:1.
– the soldering of the male headers shows that the wave
soldering is less popular than the fast growing SMT
soldering. Presently the use of SMT to wave soldering is
with a ratio of 4:1.
– Pin-in-Paste (THC) soldering for the grind 1.27 and pins
0.38 practically is of no importance.
ODU-Steckverbindungssysteme GmbH & Co. KG, Pregelstr. 11, D-84453 Mühldorf/Inn, Tel. +49/86 31/ 6 1 5 6 - 0 , Fax +49/86 31/61 56 49, www.odu.de
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ODU MINI-FLAKAFIX
The following refers to SMT soldered headers.
Requirements for SMT headers
– High temperature performance (up to 260°C)
– Automatic placement (Pick and Place)
– Resistance to mechanical forces (horizontal/vertical)
– Coplanarity <0,1 mm
– Automatic Checking
Requirements for the Pin-Socket combination
– Low insertion and withdrawal forces
– Low and constant resistance
– Good high frequency properties
– Safe locking of the two connector halves
Temperature Performance
Due to the introduction of the RoHS-conformity it was
necessary to change the soldering procedure by another
soldering profile in the manufacturing process. The usual
soldering temperatures were 225°C - 245°C, now they
reach 245°C - 260°C. The ODU components are designed
for these processes.
Mechanical forces
The ODU headers in the series version have moulded
guide pins. If the drilling of the PCB is a problem, the
headers can be supplied without guide pins.
In some cases the guide pins have shown to be very useful.
They absorb the horizontal forces and allow easy hand
placement for prototypes and small production runs.
Automatic Placement
Today Tape and Reel packaging is a standard. The header,
which is equipped with vacuum adapter plates, is taken out
of the pocket by the pick and place machine, and is deposi-
ted on the PCB (quite frequently guided by an adjustment
device with optical alignment)
ODU MINI-FLAKAFIX 30-way.
The header is shown with guide
pins. The female socket is shown
with cable and strain relief.
It is our experience that special soldering supports are not
needed to take mechanical forces. It is true that the SMT
soldered headers show a lower pull-off force than wave
soldered headers but the safety margin against the contact
separation is still very high. The vertical pull-off forces nor-
mally are not limited by the soldering method but by the
adhesive force of the pad to the PCB.
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ODU-Steckverbindungssysteme GmbH & Co. KG, Pregelstr. 11, D-84453 Mühldorf/Inn, Tel. +49/86 31/ 6 1 5 6 - 0 , Fax +49/86 31/61 56 49, www.odu.de
ODU MINI-FLAKAFIX
The following are guide values:
SMT
soldered Pin
Vertical
Pull-off Force
Contact
separation Force
Safety factor
Coplanarity
It is absolutely essential that a value of <0.1 is maintained.
During the fully automatic assembly ODU has a 100%
optical inspection to make sure that this value is maintained.
Wave or
Pin-in-Paste
soldered Pin
> 50 N
Automatic Testing
This is well possible due to the contact geometry, this
means the solder legs and the solder areas are well
accessible for camera systems.
Mating and unmating forces, resistance
The ODU MINI-FLAKAFIX connector system has excellent
contact properties .
The 2-sided sliding socket contact allows for as many as
100 mating cycles. The mating and demating force for a
single pin/socket combination is around 0.1 N. For a whole
connector, of up to 50 way it is around 0.2 N/contact, for
30-way connector appr. 6.0 N.
The contact resistance – even after many mating cycles – is
very low – around 6 mΩ.
High-frequency properties
Signal integrity at high data and clock rates is maintained
by:
– Maintenance of characteristic impedance of the signal-
path to avoid loss by reflection
– Low crosstalk
– Avoiding EMI to the outside
ty
ari
lan 1 mm
p
Co x. 0.
ma
>8N
0.1 – 0.3 N
> 25 : 1
0.1 – 0.3 N
> 150 : 1
– Resistance to Electro Magnetic Interference from the
outside
It is not possible to make a general statement to indicate
the maximum frequency which ODU MINI-FLAKAFIX
connectors may use. Such a statement is only possible if
essentials like the configuration of the pins, the cable
length and the
specific requirements for signal integrity are known.
Today ODU MINI-FLAKAFIX is used for analog frequencies
up to 1 GHz according to 2 GBits /s.
Guide pins
Locking system
Here two systems are offered:
max. 0.1 mm
1.) Locking with metal clip (the socket can only be sepa-
rated from the header by using a screwdriver or similar
tool)
2.) Locking with latches – connectors can be separated by
hand
Both systems have their advantages depending on specific
requirements.
(see pages 16-17)
ODU-Steckverbindungssysteme GmbH & Co. KG, Pregelstr. 11, D-84453 Mühldorf/Inn, Tel. +49/86 31/ 6 1 5 6 - 0 , Fax +49/86 31/61 56 49, www.odu.de
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