Panel with Silver Paste Printed Circuit and Special-Shaped Flexible Tail

Name: Custom Rotary Knob Membrane Switch/Keypad/Keyboard/Panel with Silver Paste Printed Circuit and Special-Shaped Flexible Tail
Brand: SNT Electronics Technology Co., Ltd.
SKU: 1973550321

Guangdong, ChinaSNT Electronics Technology Co., Ltd.

US$0.50

5 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Flexible

Structure

FPC

Material

Pet/PVC/Rubber/Glass/Acrylic/Polycarbonate/Metal

Usage

Playback Switch, Disconnector, Change-over Switch, Control Switch

Application

Home Appliance, Telecommunication Equipment, With Remote Control, Calculator, Camera

Contact Type

FPC Terminal Connector

Number of Switch

Multi Control Switch

Detection Method

Circuit Function Testing Equipment

Brand

Snt

Certification

RoHS

Function

Durable, Waterproof, Dustproof, UV Resistant

Logo/Design

Customized

Dimension/Shape

OEM Service

Color

Pantone, Ral, Cmyk

Transport Package

Carton

Specification

Customized

Trademark

SNT

Origin

China

Production Capacity

1000000

Key features

Space-Optimizing Special-Shaped Tail: Breaks free from traditional straight-out tail limitations. The flexible ribbon cable can be engineered into custom angles, curves, or staggered shapes to easily

Dual-Control Integration (Knob + Keys): Merges a 360-degree digital rotary control with tactile membrane push-buttons. This allows for both rapid, continuous adjustments (e.g., speed, temperature) and

Cost-Effective Silver Ink Circuitry: Utilizes mature screen-printed silver ink tracks as the conductive layer. It ensures highly precise electrical resistance and provides a major cost advantage

Dual Tactile Feedback: Combines the flat, crisp click of built-in metal domes for push-buttons with the distinct mechanical indexing of a rotary encoder, delivering clear and reassuring feedback

Highly Integrated Profile: Consolidates the graphic overlay, circuitry, button contacts, and rotary encoder interface into a single ultra-thin assembly, minimizing overall device thickness and streaml

Company profile

Exhibition Experience100% Finished Products InspectionManagement CertificationOEM Services

SNT Electronics Technology Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤0.02h

AI-Powered supplier vetting

SummarySNT Electronics is identified as a professional HMI component supplier founded in 2012, offering membrane switches, overlay panels, backlight membrane switches, and PET printed circuits. It provides extensive customization, 3D software design, ODM, and OEM services, with stated production of 15 million membrane switches and exports to Europe, Australia, North America, and domestic markets. Service procedures, complaint handling, corrective actions, and finished-product inspection procedures are documented and followed. However, the evidence also shows no valid manufacturing contract with related subcontractors, no overseas warehouse or showroom, no quality assurance in quality-control processes, no new products in the past year, and no available SDK. Financial credibility cannot be positively assessed because the provided financial figures are zero and no broader financial evidence is available.

Supplier typeThe supplier is explicitly identified as a professional technical supplier and is described as developing and manufacturing mission-critical HMI components, including membrane switches, overlay panels, backlight membrane switches, and PET printed circuits. This supports classification as a specialized HMI component manufacturer rather than a general trading company.

After-Sales capabilityThe supplier has documented and followed procedures for handling customer complaints and corrective and preventive actions, which supports a structured after-sales response process. However, it lacks overseas warehouse and showroom capabilities, limiting evidence of local or physical overseas support.

Production capacityThe supplier reports in-stock capability, documented and consistently followed finished-product inspection instructions, one-month lead times in both peak and off-peak seasons, and production of 15 million membrane switches. However, it has no valid contract with related subcontractors, creating a documented manufacturing-governance weakness.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also provides 3D software design, ODM, and OEM services for well-known brands, demonstrating broad stated customization coverage.

Product Q&A

Q:What is a "Special-Shaped Tail" and what problem does it solve?

Standard membrane switch tails (flexible cables) only extend straight vertically or horizontally. A special-shaped tail is custom-die-cut with specific angles, offsets, or bends. This allows the circuitry to navigate through highly restricted or complex interior housing spaces without the risk of folding or damaging the tracks.

Q:How reliable and durable is a screen-printed silver ink circuit?

Under standard indoor and dry environments, the button actuation life can exceed 1,000,000 cycles. To prevent "silver migration" (short circuits caused by humidity), high-quality manufacturers print a protective carbon ink layer or apply a UV-curable dielectric layer over the silver tracks.

Q:How is the rotary knob function physically integrated onto the membrane switch?

here are two main methods depending on your design:Thru-Hole Design (Most Common): A precise hole is cut through the membrane switch, allowing a mechanical encoder mounted on a rear PCB to pass through. The knob cap is then attached from the front.Fully Printed Track: A rotary carbon track is printed directly onto the flexible circuit layer, working in tandem with a mechanical rotor contact to register rotational signals.

Q:Are there any design limitations regarding the special-shaped tail?

Yes. Because these tails require custom die-cutting tools, the bend radius should not be too sharp (ideally greater than 2-3mm) to prevent micro-cracks in the printed silver ink. Additionally, complex shapes may slightly increase material scrap rates during manufacturing, which can affect unit costs.

Q:What connector interfaces are available for the tail termination?

We can customize the tail end to match your existing mainboard connector:Bare Silver Pins: Designed to plug directly into 1.0mm, 1.27mm, or 2.54mm pitch ZIF/LIF FPC connectors.Female Housings: Pre-crimped with Dupont connectors or FCI clincher connectors to plug onto standard male pin headers.