Flex Cable: Voltage Rating Up to 300V AC/DC

Component Specifications

Definition

A flexible printed circuit (FPC) or flat cable designed specifically for display assemblies, consisting of multiple conductive traces laminated between insulating polymer layers. It provides reliable electrical connectivity while accommodating mechanical movement, folding, or bending within compact electronic devices such as laptops, smartphones, and monitors.

Working Principle

Operates by transmitting electrical signals through conductive copper traces embedded in a flexible dielectric substrate. The cable's flexibility allows it to bend or twist without breaking, maintaining electrical continuity between the display panel and mainboard or other components, often using zero insertion force (ZIF) connectors for secure attachment.

Materials

Copper traces (typically electrolytic or rolled annealed copper, 12-35μm thick), polyimide (PI) or polyester (PET) insulating layers, adhesive layers (acrylic or epoxy), coverlay for protection, and sometimes shielding layers (aluminum or copper foil) for EMI protection.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pitch	0.3mm to 1.0mm
Bend Radius	≥1.5 times cable thickness
Layer Count	1 to 4 layers
Voltage Rating	Up to 300V AC/DC
Current Capacity	0.5A to 3A per trace
Insulation Resistance	≥100MΩ
Operating Temperature	-40°C to 105°C
Dielectric Withstanding Voltage	500V AC for 1 minute

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, IPC-6013, IEC 61188-5-2

Parent Products

This component is used in the following industrial products

Display assembly

A complete display assembly for smartphones integrates the screen panel, touch sensors, protective cover glass, and supporting electronics into a single functional unit that serves as the primary visual and interactive interface between the user and the device.

View Product Details

Front camera module

Integrated optical imaging component for smartphone front-facing photography and video capture

View Product Details

Engineering Analysis

Risks & Mitigation

Trace cracking from repeated bending
Delamination due to moisture or heat
Connector misalignment causing poor contact
EMI interference in unshielded designs
Static discharge damage during handling

FMEA Triads

Trigger: Excessive bending beyond specified radius
Failure: Copper trace fracture leading to open circuit
Mitigation: Design with adequate bend radius, use strain relief, and implement bend cycle testing during qualification

Trigger: High humidity or thermal cycling
Failure: Delamination of insulating layers causing short circuits
Mitigation: Use moisture-resistant materials (e.g., polyimide), apply conformal coating, and specify operating environment limits

Trigger: Poor connector engagement
Failure: Intermittent signal loss or complete disconnection
Mitigation: Implement foolproof connector designs, use locking mechanisms, and conduct insertion/withdrawal force testing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Trace width tolerance ±10%, alignment tolerance ±0.1mm for connectors

Test Method

Continuity testing (4-wire method), insulation resistance test (500V DC), bend cycle test (IPC-TM-650 2.4.3), thermal shock testing (IEC 60068-2-14)

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Flex Cable

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shenzhen Sino-Media Technology Co., Ltd.

Shenzhen, Guangdong, CN

Also makes: Transceiver Module, Connector / Cable Assembly

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Custom Flat Flex Cable”
View source page ↗ sino-conn.com · checked 2026-09-12

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

Related Components

Dielectric Layer

Insulating layer in surface mount capacitors that stores electrical energy through polarization.

Optical Window

Transparent optical component for light transmission in polycarbonate lens housings

PCB Substrate

PCB substrate is the foundational insulating layer that provides mechanical support and electrical connectivity for electronic components in high-speed memory modules.

Edge Connector

Edge connector is a printed circuit board (PCB) connector that mates with the edge of another PCB, commonly used in high-speed memory modules for reliable electrical connections.

Frequently Asked Questions

What is the main advantage of using a flex cable in display assemblies?

Flex cables enable reliable electrical connections in tight spaces while allowing movement between components, such as hinge rotation in laptops or folding in smartphones, without wire fatigue or breakage.

How do you prevent flex cable damage during installation?

Avoid sharp bends below the minimum bend radius, use proper strain relief at connection points, ensure correct alignment with ZIF connectors, and handle with clean tools to prevent contamination or tearing.

Can flex cables be repaired if damaged?

Minor repairs like trace patching are possible but not recommended for critical applications; replacement is usually advised due to reliability concerns and potential signal integrity issues.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Flex Cable