Switch interconnect

Automotive column switch FPC

As electric vehicles and smart cockpits become mainstream, column switches and electronic shifters are steadily replacing mechanical gear levers. Conventional multi-strand harnesses bring untidy routing, breakage risk under repeated shifting, fiddly assembly and a bulky footprint. Our column switch FPC uses integrated flexible routing with localised stiffeners to consolidate signal lines into a single flex circuit, markedly improving assembly efficiency and dynamic durability.

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Key features

Withstands repeated actuation

A dedicated stack-up and stiffener design in the bend area suits the high-frequency actuation of a column switch.

Integrated routing

Replaces multi-strand harnesses, cutting connectors and solder joints to reduce the risk of open circuits.

Assembly-friendly footprint

An ultra-thin flexible structure hugs the steering column cavity and frees up valuable assembly space.

Automotive validation

Thermal cycling, vibration and conductive stability validation to automotive requirements.

Specifications

Layers: 1 – 4 layers
Min. line width / spacing: 75 / 75 µm
Base material: PI 25 / 50 µm
Copper thickness: 18 / 35 µm (RA rolled copper)
Stiffener options: PI / FR-4 / steel stiffener
Surface finish: ENIG, gold plating, OSP
Outline tolerance: ± 0.10 mm
Operating temperature: -40 °C to 105 °C

Typical applications

Electronic shifters
Column switch assemblies
Steering column combination switches
Steering wheel multifunction keys

Talk to an engineer

Share your Gerber files or specification and our engineering team will assess manufacturability, advise on process and stack-up, then move your project through sampling and volume production to automotive standards.

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