26 - 28 May 2025
Vogel Convention Center Würzburg, Germany
3 Days of Concentrated Connector Know-how
From Single Pair Ethernet, intelligent connectors, materials and coatings to additive manufacturing of connectors: this year's user congress program once again offers a wide range of topics.
On the first day, visitors can learn about the basics of connection technology in basic seminars** taking place in parallel.
On the second and third days, participants will receive in-depth, first-hand know-how in numerous presentations by experts from industry, science and research.
Monday, May 26, 2025 - Basic Seminars and EMC day
Registration of participants at the Vogel Convention Center (VCC)
Parallel Basic Seminars in the morning
(VCC seminar rooms)
Seminar 1: Connectors – important characteristics and terms
Dr.-Ing. Helmut Katzier | Engineering office for assembly and connection technology
What you will learn:
In the field of electrical connectors, many terms from different specialist disciplines are used, the precise knowledge of which is of great importance in the co-operation between users and manufacturers. Terms such as contact overlap, relaxation, gas-tight connections or contact corrosion are frequently used, but not everyone is always familiar with their exact meaning. Especially when analysing and eliminating faults, it is important that the people involved in the conversation know which aspects are being discussed. The seminar explains the most important technical terms relating to electrical connectors. All relevant areas of mechanics, electrical engineering, materials science and qualification are covered. For each technical term there is a precise definition, a basic technical explanation and an explanation of the meaning of the term in the event of a fault. The aim of the basic seminar is to provide participants with a glossary at the end, which they can use to look up the various terms in the field of electrical connectors quickly and thoroughly.
Seminar 2: Basics of contact physics
Dr. Frank Ostendorf | TE Connectivity Germany GmbH
What you will learn:
The basic seminar introduces the basics of contact physics and explains important terms and the creation of physical quantities such as contact resistance, contact heating and derating. These phenomena are linked to the contact surfaces and the contact coating. The 'contact behavior' of a connector must be viewed as a system property that results from the interaction of the contact coating, the design of the connector, the electrical load, the requirement profile and the environment. The seminar is divided into the following sections:
Seminar 3: Copper materials for connectors
Stephan Gross | Boway Deutschland GmbH
What you will learn:
Selecting the right copper and copper alloys is a challenging topic. For many developers/designers of connectors, it is not always easy to choose the right material, both technically and commercially. The seminar covers all the basics relevant to connectors and provides information on these semi-finished products, including excursions into mechanical properties, physical properties and a brief overview of the technically relevant surfaces with a focus on tin. The speaker also provides insights into the selection of the critical parameters, as well as the pitfalls that lurk here.
Seminar 4: Basics of cables and wires
Dr.-Ing. Philipp Baron | LAPP Holding SE
What you will learn:
Cables and wires are essential for the transmission of electrical energy, data and signals that enable the operation of machines, devices and communication systems. The lecture explains important terms and the structure of a cable, including conductor, insulation, shielding and outer sheath, and explains technical terms such as "core", "strand" and "sheathed cable". The difference between data and power cables is also covered and the technical requirements explained. The selection of the right cable for different applications, based on temperature resistance, mechanical resilience and electromagnetic compatibility, is also discussed. Finally, current developments and future trends, such as highly flexible cables, environmentally friendly materials and intelligent sensors, as well as the effects of digitalisation and automation on cables and wires are presented. The seminar provides a comprehensive overview of the importance, structure and selection of cables and wires as well as future developments.
Lunch break
Parallel Basic Seminars in the afternoon
(VCC seminar rooms)
Seminar 5: Use of Connectors
Herbert Endres | EndresConsult
What you will learn:
This calendar for connectors shows the relationships and compromises for the selection and application of connectors and provides the basic knowledge for understanding the properties and electrical data. The basics, material selection in production, physical characteristics, processing techniques and the resulting relationships for function and application are explained. The fourteen chapters cover:
In the chapters, the differences are emphasised in detail and the advantages and disadvantages of the individual materials and manufacturing and application processes are presented, weighed up against each other and assessed. Both the application limits (current load at higher ambient temperatures) and the behaviour at the highest data rates are dealt with. The connector catalogue is not intended to be a shopping guide, but rather a compendium of the diversity of properties, designs and processing options. It shows, independent of the manufacturer, which alternatives are available and what the selection of certain characteristics entails, for better or for worse.
Seminar 6: Surface Coating of Contact Materials
N.N. | IMO Oberflächentechnik GmbH
What you will learn:
The seminar teaches the theoretical principles and laws of electroplating. Influences on deposition and a general process sequence for coating parts round off the theoretical basics. For the quality of the coating, many requirements of the base material, the product design and the choice of material must be fulfilled. These are covered in detail and, in addition to the surface properties and geometric requirements of the base material, the interaction between the base and coating materials is also explained. The functional significance, advantages and disadvantages of the coating metals used in connector and electrical engineering as well as current trends are discussed. The techniques of single-part electroplating, such as barrel, vibrobot and rack processes, are presented with the aid of films and the possibilities of coating are explained to the audience using product examples. The selective plating of individual parts completes the portfolio of bulk material plating. The differences and advantages of coil electroplating compared to single part electroplating then form the transition to coil coating. The special process sequence for coil plating is discussed again here and the various processes, such as dip, brush, strip and spot technology using films and various selective tools, are explained. In addition, the process-related tolerances and specifications of the various techniques are explained, as are the dimensional limits of strip electroplating technology. Process experiences and product examples from practice will support the lecture.
Seminar 7: Selection of Plastics for Connectors
Martin Räthlein | Rosenberger GmbH & Co. KG
What you will learn:
In particular, fire properties, thermal, mechanical and electrical properties of engineering plastics are discussed for the selection of materials for connectors, also using examples. The very different requirements resulting from the various markets (automotive, electrical, electronics) are taken into account.
After the presentation, the audience will be able to select the material that best fulfils the respective requirements from the large number of different types of plastic.
Seminar 8: Ensuring Electromagnetic Compatibility (EMC) in a Wired World
Dr. Heinz Zenkner | Publicly appointed and sworn expert for EMC
What you will learn:
As electronics become more complex and interconnected, electromagnetic compatibility (EMC) management is crucial to avoid electromagnetic interference (EMI) that can affect performance or cause malfunctions. Modern EMC measures include the control of EMC in high-speed circuits and power electronics as well as the optimisation of interfaces. The most important strategies include effective filter design with transient protection, optimised earthing and contacting to minimise impedances and consideration of the EMC behaviour of interface cables. The seminar shows how high-frequency interference arises and how it can be reduced at source. Measures along the transmission path up to the interface are also presented. Filter circuits with inductors, capacitors and overvoltage-limiting components play a central role here. The layout design is presented, taking into account impedance matching and signal propagation. Filter components are briefly explained and parasitic impedances and effects that influence filter functionality are discussed. Further applications are used to demonstrate filter topologies, earthing concepts and the selection of suitable components. The next step presents grounding concepts that have a significant influence on "EMC functionality". Housing shielding attenuation, connector contacting and cable shielding attenuation are discussed and important points are explained. The final section describes the structure of precompliance measurements for the interference emission of interfaces. The EMC concept of the device interfaces can be optimised through early testing so that the legal and performance-related requirements can be met - an essential factor in the development of modern electronic products.
Coffee break
Welcome to the EMC Day
Everything about Electromagnetic Compatibility (EMC) in Connection Technology
Kristin Rinortner
ELEKTRONIKPRAXIS
EMC and connectors: Which EMC rules must be observed when using and manufacturing connectors?
Dr. Helmut Katzier
Engineering office for construction and connection technology
EMC game changer: Innovative cable designs for interference-free industrial plants
Stefan Hilsenbeck
LAPP Holding SE
Board-to-board connectors for hybrid applications data / signals / power
The market is characterised by a wide range of different PCB connectors for the most diverse applications. There are pure power, data and signal board-to-board connectors, as well as hybrid versions that combine power, data and signals by fitting different contacts in one connector.
The presentation deals with whether this differentiation is absolutely necessary or whether the different purposes can also be served with the same contacts. In addition, a look will be taken at the EMC-compliant design of such a PCB connection, for example with regard to high-speed data transmission alongside power transmission in the same connector.
To this end, different pin assignments in a board-to-board connection with a hybrid arrangement with data and power transmission are compared with each other as an example in order to obtain answers to the following questions, among others:
Arndt Schafmeister
PHOENIX CONTACT GmbH & Co. KG
Thomas Schulze
PHOENIX CONTACT GmbH & Co. KG
Coffee break
Poster-Slam 
The speakers present their topics in short 5-minute presentations on the podium. The audience then awards the best presentation an award.
Manuel Rüter
TE Connectivity Industrial GmbH
Dr. Konstantinos Panos
Helmut Fischer GmbH Institut für Elektronik und Messtechnik
Dr. Benjamin Hertweck
Kern Liebers
Marcel Selinger
C. Jentner
Andreas Pitzl
Emerson
Poster Slam Award Ceremony and Get Together at the VCC Vogel Convention Center
We end the day with finger food, cold drinks and plenty of time to network with participants, speakers and exhibitors.
sponsored by
Tuesday, May 27, 2025 - User Congress Day 1
(Event hall "Shedhalle")
Registration of participants at the Vogel Convention Center (VCC)
Welcome to the first day of the Connector User Congress
Listen to lectures from experts on the following topics:
Kristin Rinortner
ELEKTRONIKPRAXIS
Convergence in SPE Connectivity using PROFINET as an example
Andreas Huhmann
PROFIBUS & PROFINET International
Xaver Schmidt
PROFIBUS & PROFINET International
The unified SPE connector – status and implications for users
Tim Kindermann
PHOENIX CONTACT GmbH & Co. KG
Thomas Keller
Rosenberger Hochfrequentechnik GmbH & Co. KG
Coffee break and exhibition
Ribbon cables: Ethernet Anywhere and flex foil connections – two technology trends
Stephen Kaminski
TE Connectivity / ERNI Deutschland GmbH
USB-C 3.1 as an intelligent power supply and charging interface
Fabian Altenbrunn
Würth Elektronik eiSos GmbH & Co. KG
Everything on the PCB: Challenges and solutions for circular connectors
Patrick Schmidt
PHOENIX CONTACT GmbH & Co. KG
Lunch break and exhibition
Parallel Workshops
(VCC seminar rooms)
Workshop 1: Measurement system analysis to optimize quality controls using X-ray fluorescence analysis (XRF)
Dr. Konstantinos Panos | Helmut Fischer GmbH
Omar Cheikh-Jumaa | Helmut Fischer GmbH
Focus: Checking & Testing
What you will learn:
Modern production is characterised by high quality standards combined with high throughput. It is not only necessary to optimise the production processes in terms of quality and throughput, but also the inspection and measurement processes. Measurement system analysis (MSA) provides valuable information and indications of possible optimisation measures for testing and measurement technology. As MSA is often requested and carried out anyway, recommendations for further optimisation can be derived without additional effort. However, this also requires an understanding of the interrelationships, which we would like to shed some light on here. For a better understanding, we will first go into the relevant basics of statistics and measurement system analysis. Influencing factors for the measurements with the X-ray fluorescence analyser are discussed and the connection with the MSA is established. Accuracy and scattering can be considered individually for an XRF analyser. This results in relevant conclusions for optimisation. The aim of the workshop is to enable you to carry out the optimisation shown on your measuring device.
Workshop 2: Success in new markets through leak testing of connectors
Dr. Joachim Lapsien | CETA Testsysteme GmbH
Focus: Checking & Testing
What you will learn:
Based on the basics of leak testing, this workshop presents a practical guide for leak testing different types of connectors. This will be supplemented by a number of practical tips for the practical realisation of the leak test.
Workshop 3: Flexible and precise manufacturing of connectors
Kai Wesendrup | Otto Bihler Maschinenfabrik GmbH & Co. KG
Focus: Manufacturing
A detailed description of the workshop will be available here shortly.
Workshop 4: Choosing the right surface coating for contact materials
Markus Klingenberg | TE Connectivity Germany
Focus: Coating technology
A detailed description of the workshop will be available here shortly.
Workshop 5: EMC-compliant design and use of connectors
Dr.-Ing. Helmut Katzier | Engineering office for assembly and connection technology
Focus: EMC
What you will learn:
Connectors are also critical components in all electronic devices and systems in terms of EMC. EMC is determined by several sources of interference and electromagnetic coupling. These interference sources and couplings are explained using practical examples. The design and correct use of connectors play an important role in the EMC-compliant design of devices and systems. These two aspects will be demonstrated in the workshop using current connector designs. Even with a connector that is optimised in terms of EMC, EMC interference can be generated if the user makes an unfavourable connection. In the workshop, EMC rules for selecting the correct connectors and the correct connections to the PCB and cable are presented.
Workshop 4: Choosing the right surface coating for contact materials
Markus Klingenberg | TE Connectivity Germany
Focus: Coating technology
A detailed description of the workshop will be available here shortly.
Workshop 5: EMC-compliant design and use of connectors
Dr.-Ing. Helmut Katzier | Engineering office for assembly and connection technology
Focus: EMC
What you will learn:
Connectors are also critical components in all electronic devices and systems in terms of EMC. EMC is determined by several sources of interference and electromagnetic coupling. These interference sources and couplings are explained using practical examples. The design and correct use of connectors play an important role in the EMC-compliant design of devices and systems. These two aspects will be demonstrated in the workshop using current connector designs. Even with a connector that is optimised in terms of EMC, EMC interference can be generated if the user makes an unfavourable connection. In the workshop, EMC rules for selecting the correct connectors and the correct connections to the PCB and cable are presented.
Short coffee break and exhibition
Electrical clearance and creepage distance analysis with AutoCrear
Urs Simmler
Aveniq AG
EMC and the simulation that nobody actually wants to do
Maximilian Depta
Simuserv GmbH
Coffee break and exhibition
Latest technologies in the metal recycling economy of the connector industry
Thomas Frey
Silverteam Recycling GmbH
On the brink of the future: How the connector industry shapes the AI revolution
Lars Klapproth
Heilind Electronics
Evening event at the Nikolaushof Würzburg
Wednesday, May 28, 2025 - User Congress Day 2
(Event hall "Shedhalle")
Registration of participants at the Vogel Convention Center
Welcome to the second day of the Connector User Congress
Listen to lectures from experts on the following topics:
Kristin Rinortner
ELEKTRONIKPRAXIS
Reliability engineering for automotive connectors – Risks and opportunities at the same time
Dr. Frank Ostendorf
TE Connectivity Germany
Ultrasonic welding of Al busbars to Cu contacts: The role of laser structuring and connection reliability in meeting IEC 60352-9 standards
Christian Gregor
Schaltbau GmbH
Forming limits and maximum formabilities of metallic materials for connectors in the automotive industry
Dr. Isabell Buresch
TE Connectivity Germany
Coffee break and exhibition
Sustainable production of circular connectors: Potential of metal forming for ecological and economic benefits
Herman Voigts
Manufacturing Technology Institute | MTI of the RWTH Aachen
Metals and clad materials for electrical connectors in high performance applications
Björn Reetz
Materion Brush GmbH
Aging of plastics in terms of dielectric strength and tracking resistance
Alexandre Chaillet
Würth Elektronik eiSos GmbH & Co. KG
Lunch break and exhibition
Parallel Workshops
(VCC seminar rooms)
Workshop 1: Measurement system analysis to optimize quality controls using X-ray fluorescence analysis (XRF)
Dr. Konstantinos Panos | Helmut Fischer GmbH
Omar Cheikh-Jumaa | Helmut Fischer GmbH
Focus: Checking & Testing
What you will learn:
Modern production is characterised by high quality standards combined with high throughput. It is not only necessary to optimise the production processes in terms of quality and throughput, but also the inspection and measurement processes. Measurement system analysis (MSA) provides valuable information and indications of possible optimisation measures for testing and measurement technology. As MSA is often requested and carried out anyway, recommendations for further optimisation can be derived without additional effort. However, this also requires an understanding of the interrelationships, which we would like to shed some light on here. For a better understanding, we will first go into the relevant basics of statistics and measurement system analysis. Influencing factors for the measurements with the X-ray fluorescence analyser are discussed and the connection with the MSA is established. Accuracy and scattering can be considered individually for an XRF analyser. This results in relevant conclusions for optimisation. The aim of the workshop is to enable you to carry out the optimisation shown on your measuring device.
Workshop 2: Success in new markets through leak testing of connectors
Dr. Joachim Lapsien | CETA Testsysteme GmbH
Focus: Checking & Testing
What you will learn:
Based on the basics of leak testing, this workshop presents a practical guide for leak testing different types of connectors. This will be supplemented by a number of practical tips for the practical realisation of the leak test.
Workshop 3: Flexible and precise manufacturing of connectors
Kai Wesendrup | Otto Bihler Maschinenfabrik GmbH & Co. KG
Focus: Manufacturing
A detailed description of the workshop will be available here shortly.
Workshop 4: Choosing the right surface coating for contact materials
Markus Klingenberg | TE Connectivity Germany
Focus: Coating technology
A detailed description of the workshop will be available here shortly.
Workshop 5: EMC-compliant design and use of connectors
Dr.-Ing. Helmut Katzier | Engineering office for assembly and connection technology
Focus: EMC
What you will learn:
Connectors are also critical components in all electronic devices and systems in terms of EMC. EMC is determined by several sources of interference and electromagnetic coupling. These interference sources and couplings are explained using practical examples. The design and correct use of connectors play an important role in the EMC-compliant design of devices and systems. These two aspects will be demonstrated in the workshop using current connector designs. Even with a connector that is optimised in terms of EMC, EMC interference can be generated if the user makes an unfavourable connection. In the workshop, EMC rules for selecting the correct connectors and the correct connections to the PCB and cable are presented.
Workshop 4: Choosing the right surface coating for contact materials
Markus Klingenberg | TE Connectivity Germany
Focus: Coating technology
A detailed description of the workshop will be available here shortly.
Workshop 5: EMC-compliant design and use of connectors
Dr.-Ing. Helmut Katzier | Engineering office for assembly and connection technology
Focus: EMC
What you will learn:
Connectors are also critical components in all electronic devices and systems in terms of EMC. EMC is determined by several sources of interference and electromagnetic coupling. These interference sources and couplings are explained using practical examples. The design and correct use of connectors play an important role in the EMC-compliant design of devices and systems. These two aspects will be demonstrated in the workshop using current connector designs. Even with a connector that is optimised in terms of EMC, EMC interference can be generated if the user makes an unfavourable connection. In the workshop, EMC rules for selecting the correct connectors and the correct connections to the PCB and cable are presented.
* Subject to change
** Our service for participants in the basic seminars: You will receive the Practical Manual for Connectors worth €89.80.