Electric Power Steering
Power steering systems supplement the torque that the driver applies to the steering wheel to augment steering effort. This is done by use of hydraulic or electric actuators to add controlled energy to the steering mechanism.
Traditional power steering systems are hydraulic systems, but electric power steering (EPS) is becoming much more common. EPS uses an electric motor, instead of a hydraulic pressure pump, to apply torque to the steering column, assisting the driver to turn the steering wheel. Information about the steering wheel position and driver inputs are gathered by sensors, which determine how much torque should be applied.
Interplex’s EPS products can be customized to your stringent end application requirements, and are trusted by top-tier automotive companies to consistently deliver the performance required.

Busbars
Busbars are the backbones for power applications across industries and a mainstay in electrical power distribution, conversion and management devices. They provide critical interfaces between power modules and the external systems these modules drive— for example, power steering ECUs, fuse and relay boxes, and DC-DC inverters in EV and HEV engines.
Interplex’s busbars are excellent for power intensive applications and are customizable to suit your current transmission requirements and performance specifications. Possible options include laminated/insulated busbars, flexible busbars, multi-layer molded busbars, and busbars integrated with high-force Press-Fit solderless interconnects.
No matter the thickness, shape or form you need, Interplex can stamp busbars to your desired thickness, bend them to the required shapes, plate them in a variety of materials, all while maintaining high performance standards and required structural integrity.
- Molded Busbar
Molded Busbar
Carries inductance units that receive and transmit signals to power steering ECU when driver turns steering wheel.

Connector Headers
Connector headers are electrical connectors with one or more rows of male pins spaced apart within an insert molded body. Interplex’s connector headers provide good mating retention for reliable connections in a large variety of end applications and sub-systems, and we can support you every step of the way with numerous pin count and pitch options, current carrying capacities, pin orientations (vertical/right angles) and wire sizes.
Our full suite of capabilities enable us to reliably precision stamp metal and mold plastic (pre-molding, overmolding and insert molding) that is required for connector headers. These processes are complemented with a comprehensive range of value-added processes such as plating and potting.
- Electric Power Steering Connector Header
- Wire Harness Connector Header
Electric Power Steering Connector Header
Transmits electrical signals from steering torque sensor to Electric Power Steering ECU for real-time control of power steering.
Wire Harness Connector Header
Transmits electrical signal within wire harness that connects steering torque sensor and vehicle electrical system to Electric Power Steering ECU for real-time control of power steering.

ECU Connectors
Electronic Control Unit (ECU) connectors are integral in controlling embedded automotive systems for a multitude of end applications. Interplex’s ECU connectors are designed to withstand harsh environments in fuel injection and engine control, braking (ABS) and acceleration systems, power steering and towing modules, just to name a few.
Being vertically integrated, Interplex is well equipped to stamp terminals, selectively plate them as required, and insert mold them in your desired densities within sturdy plastic enclosures. Our global footprint ensures that no matter where you are, we can provide these customized application solutions close to you.
- 31-pin ECU Connector
- Electric Power Steering ECU Connector
31-pin ECU Connector
Main controller connector for Electric Power Steering ECU.
Electric Power Steering ECU Connector
Transmits electrical signals within ECU of Electric Power Steering system, which determines direction and amount of power-assist according to vehicle speed and steering torque.

Power Lead Frames
Interplex’s power lead frames are designed to specific customer and end application requirements, and can incorporate interconnect systems within a single lead frame assembly. Our lead frames portfolio spans across various end applications such as battery management systems and power steering.
Being vertically integrated, we are well equipped to precision stamp terminals, plate them as required, and insert mold them in your desired densities in sturdy plastic lead frames. Our global footprint ensures that no matter where you are, we can provide these customized application solutions close to you.
- Electric Power Steering Lead Frame
Electric Power Steering Lead Frame
Transmits current and signals within Electric Power Steering (EPS) ECU to EPS motor, which generates torque to assist driver’s steering effort.

Press-Fit
Interplex’s Press-Fit technology establishes solderless electro-mechanical connections with plated-through holes on printed circuit boards. These repeatable and reliable connection joints perform well even in harsh environments, and can manifest in a myriad of forms such as connector headers and customized overmolded electronic enclosures. Extending across a multitude of industries, possible end applications include power distribution, actuator controls, automotive body control modules, solar panels, watches, passenger comfort and infotainment switches, airbag ECU safety solutions, and much more. Interplex offers a wide spectrum of options: Choose from different materials, plating options, and even designs. From the low force eye-of-the-needle available in various sizes, to the hybrid MiniPLX perfect for high density signal and power applications, and even customizable options for dual-ended/SMT/IDC integrated Press-Fits.
- 0.4mm MiniPLX™ Press-Fit Pin
- Interplex Corporate Brochure
- Automotive Press-Fit Solderless Interconnects
- Plating Capabilities
- Press-Fit Technology
- Solderless Press-Fit Terminals for Automotive Applications
- New Hybrid Design 0.4mm Press-Fit Interconnects Enable Higher Density Applications
- Contact Resistance Analysis for Press-Fit Applications
- Determining PTH Integrity with Cross-Section Analysis
- Evaluation Checklist for Press-Fit Applications
- Mechanical Force Analysis for Press-Fit Applications
- PCB Hole Construction and Material Requirements for use with Press-Fit Technologies
- Press-Fit Current Carrying Capacity – Part 1 Application Requirements
- Press-Fit Current Carrying Capacity – Part 2 Current Testing & Results
- Press-Fit Current Carrying Capacity – Part 3 Design Considerations for Power Modules
- Supplier Best-Practices for Getting Results with Press-Fit Technology – Part 1 Design, Testing & Documentation
- Supplier Best-Practices for Getting Results with Press-Fit Technology – Part 2 Global Production Standards, Materials, Tooling and Process Controls
- Upgrading Product Designs From Solderjoints to Press-Fit – Why, When and How
- What is the “right size” for Press-Fit – New Micro, Mini and Macro Press-Fits Support Applications in the Wearable, Medical and Industrial Markets
- Adapting Press-Fit Connection Technology for Electronic Modules in Harsh Environments
- Press-Fit Pin
- Interplex Corporate Brochure
- Automotive Press-Fit Solderless Interconnects
- Plating Capabilities
- Press-Fit Technology
- Solderless Press-Fit Terminals for Automotive Applications
- Contact Resistance Analysis for Press-Fit Applications
- Determining PTH Integrity with Cross-Section Analysis
- Evaluation Checklist for Press-Fit Applications
- Mechanical Force Analysis for Press-Fit Applications
- PCB Hole Construction and Material Requirements for use with Press-Fit Technologies
- Press-Fit Current Carrying Capacity – Part 1 Application Requirements
- Press-Fit Current Carrying Capacity – Part 2 Current Testing & Results
- Press-Fit Current Carrying Capacity – Part 3 Design Considerations for Power Modules
- Supplier Best-Practices for Getting Results with Press-Fit Technology – Part 1 Design, Testing & Documentation
- Supplier Best-Practices for Getting Results with Press-Fit Technology – Part 2 Global Production Standards, Materials, Tooling and Process Controls
- Upgrading Product Designs From Solderjoints to Press-Fit – Why, When and How
- Adapting Press-Fit Connection Technology for Electronic Modules in Harsh Environments
0.4mm MiniPLX™ Press-Fit Pin
Establishes solderless electro-mechanical board-to-board connection in EPS ECU.
Resources
Press-Fit Pin
Establishes solderless electro-mechanical connection to PCB of Body Control Module for control of power steering functions.
Resources

Terminals
Interplex’s terminals are trusted by top-tier automotive companies for a myriad of end applications within cars. Available options include terminal pins, clips and contacts, and these can be delivered to you in various forms— singulated or in strips.
Our terminals are used in many end applications such as: Within plug-in relays, as interconnects between PCB and relays, within various ECUs, as motor/harness connectors to infotainment systems and power windows, and between user interface switches to their respective sub-systems (such as headlights, air-conditioners).
Our full suite of capabilities enables us to precision stamp and plate intricate terminals in various shapes and sizes to fulfil your end application needs. Our in-house skiving equipment can also contour metal thicknesses and configurations as required.
- Electrical Terminal
- Negative Battery Terminal
- Positive Battery Terminal
Electrical Terminal
Transmits electrical signals in ECU within Electric Power Steering system.
Negative Battery Terminal
Transmits power in ECU within Electric Power Steering system.
Positive Battery Terminal
Transmits power in ECU within Electric Power Steering system.