| Property | Value |
|---|---|
| Substrate | Polyimide flex circuit (FPC) |
| Construction | Multi-layer flex circuit laminated with membrane switch layers |
| Total thickness | 0.3 - 1.0 mm |
| Metal dome height | 0.3 - 1.0 mm |
| Dynamic bend life | Over 100,000 cycles |
| Operating temperature | -40 °C to +85 °C |
| Sealing | Dustproof and moisture-proof; IP rating up to IP67 |
SMT integration places current-limiting resistors, indicator LEDs, capacitors and similar small parts directly on the flex during membrane switch manufacturing, so your assembly line handles fewer loose components and interconnects. Multi-layer routing lets the key matrix, backlighting and a ground or shield layer sit inside one tail, which keeps a densely populated front panel manageable. The tail leaves the switch area as a thin tongue that can be folded and threaded through a slot to the controller. The point where the tail exits the panel is closed within the same laminate, so the sealed front face does not rely on a separate gasket. The switch, circuit and graphic layer are laminated into one part, which keeps the panel face flat and the build height low in handheld and rack-mounted equipment.
Model matching is where most interface projects succeed or stall. Send us your panel dimensions, actuation requirements, sealing and ESD needs, and operating environment, and our technical team will recommend the construction that fits — membrane switch, graphic overlay, or touch panel — together with the tactile, backlighting, and integration options open to you. We stay involved after the order as well, assisting with troubleshooting, installation, and commissioning so your units move into production without surprises.
Yes. The polyimide base is suited to repeated bending, so the tail can be routed around internal parts. For custom membrane switches, send us the minimum bend radius and the path the tail must follow, and we will confirm the layer stack that suits it.
Yes. This waterproof membrane switch is designed for wipe-down and washdown cleaning. Tell us which cleaning agents are used and how often, and we will confirm the overlay and adhesive that suit them.
A silver-printed PET switch carries its conductors on printed tracks inside the laminate, which suits flat panels with a fixed tail. A custom membrane switch with FPC circuit uses a separate polyimide flex circuit, so it can be folded repeatedly, routed around obstacles and carry components. Where the assembly has to flex or fit a curved housing, the flex version is the better starting point.
Yes. The graphic is part of the laminated stack, and we print to your artwork. Surface finish is agreed on the drawing, so colors, windows and logo placement follow your design files.
Both are available: a metal dome gives a crisp click and a clear end-of-travel feel, which suits equipment where the operator needs to know a key has registered, while carbon pill contacts give a quieter press with a shorter travel. On an industrial human machine interface, this tactile choice is agreed on the drawing before production.
Yes. The polyimide flex circuit can be folded and the laminated layers follow the curvature, so the panel face stays clean. An FPC circuit for custom membrane switch can be routed to follow the curve rather than being restricted to a flat board. Send the curvature and the panel drawing and we will confirm the layer stack and dome placement that suit it.
