Flat Flex Ribbon Jumpers, Cables

Part Number	Description / PDF	Quantity
687750152002 Würth Elektronik Midcom	CABLE FFC 50POS 0.50MM 5.98"	1508
687632152002 Würth Elektronik Midcom	CABLE FFC 32POS 0.50MM 5.98"	0
686706100001 Würth Elektronik Midcom	CABLE FFC 6POS 1.00MM 3.94"	0
687624100002 Würth Elektronik Midcom	CABLE FFC 24POS 0.50MM 3.94"	2606
687740119002 Würth Elektronik Midcom	WR-FFC 0.50MM TYPE 2_FOLDING FFC	0
686712200001 Würth Elektronik Midcom	CABLE FFC 12POS 1.00MM 7.87"	31
686704100001 Würth Elektronik Midcom	CABLE FFC 4POS 1.00MM 3.94"	284
686720200001 Würth Elektronik Midcom	CABLE FFC 20POS 1.00MM 7.87"	968
686620119001 Würth Elektronik Midcom	WR-FFC 1.00MM TYPE 1_FOLDING FFC	0
686626100001 Würth Elektronik Midcom	CABLE FFC 26POS 1.00MM 3.94"	69
687610050002 Würth Elektronik Midcom	CABLE FFC 10POS 0.50MM 1.97"	87
686610200001 Würth Elektronik Midcom	CABLE FFC 10POS 1.00MM 7.87"	58
686630141001 Würth Elektronik Midcom	WR-FFC 1.00MM TYPE 1_FOLDING FFC	0
687650119002 Würth Elektronik Midcom	WR-FFC 0.50MM TYPE 1_FOLDING FFC	0
686720225001 Würth Elektronik Midcom	WR-FFC 1.00MM TYPE 2_FOLDING FFC	0
687717100002 Würth Elektronik Midcom	CABLE FFC 17POS 0.50MM 3.94"	0
686620200001 Würth Elektronik Midcom	CABLE FFC 20POS 1.00MM 7.87"	108
687712152002 Würth Elektronik Midcom	CABLE FFC 12POS 0.50MM 5.98"	31
687706050002 Würth Elektronik Midcom	CABLE FFC 6POS 0.50MM 1.97"	1998
687720100002 Würth Elektronik Midcom	CABLE FFC 20POS 0.50MM 3.94"	203

Flat Flex Ribbon Jumpers, Cables

1. Overview

Flat Flex Ribbon Jumpers (FFRJ) and Cables are specialized electrical interconnect solutions characterized by their flat, ribbon-like structure. They consist of multiple conductors arranged in parallel on a flexible dielectric substrate, enabling high-density signal/power transmission in compact spaces. These components are critical in modern electronics for their ability to reduce assembly complexity, improve signal integrity, and support miniaturization in devices ranging from consumer electronics to industrial automation systems.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Single-layer FFRJ	Simplex conductor arrangement, cost-effective	Internal PCB connections in laptops
Dual-layer FFRJ	Double-sided conductors with cross-connect capability	High-density backplane interfaces
Stripline FFRJ	Controlled impedance with embedded ground planes	Radar systems and RF modules
Shielded Ribbon Cables	EMI/RFI protection with braided shielding	Medical imaging equipment

3. Structure & Composition

A typical FFRJ/cable assembly comprises:

Conductors: Annealed copper or aluminum alloys (0.05-0.5mm ), with tin/silver plating
Dielectric: Polyimide (PI) or polyester (PET) films (0.025-0.2mm thickness)
Termination: ZIF (Zero Insertion Force) contacts or stamped headers
Protective Layer: Optional PVC or TPE overmolding for mechanical strain relief

4. Key Technical Parameters

Parameter	Typical Range	Importance
Conductor Cross-section	0.035 - 0.8mm	Determines current carrying capacity
Insulation Resistance	>100M @500VDC	Ensures electrical safety
Operating Temperature	-40 C to +125 C	Defines environmental robustness
Flex Life	10,000 - 100,000 cycles	Indicates mechanical durability
Impedance Control	50 - 100	Crucial for high-speed signals

5. Application Fields

Consumer Electronics: Foldable smartphones, wearable devices
Medical Equipment: MRI scanners, endoscopic cameras
Industrial Automation: Robotic arm cabling systems
Telecommunications: 5G base station internal wiring

6. Leading Manufacturers & Products

Manufacturer	Representative Product	Key Specification
TE Connectivity	FFRJ-26D-127	26AWG, 127 m pitch, 10Gbps data rate
Molex	SL Series Ribbon Cable	UL94-V0 rated, 28AWG x 40 conductors
Amphenol ICC	ZIF-CL-104899	0.8mm pitch, 1000 mating cycles

7. Selection Guidelines

Key considerations:

Calculate current load using I = K T A (where K=material constant, T=temp rise, A=conductor area)
Evaluate bend radius requirements: Minimum R 10 cable height
Verify signal integrity for frequencies >1GHz using S-parameter analysis
Select flame-retardant materials (e.g., LSZH jackets) for industrial applications

Case Study: In automotive ADAS systems, shielded 34AWG FFRJ with -40 C to +150 C rating was selected to ensure reliability in engine bay environments.

8. Industry Trends

Emerging developments include:

Sub-0.5mm pitch connectors enabling 8K display interfaces
Integration of graphene-coated conductors for 50% weight reduction
Smart cables with embedded temperature/signal sensors (IoT applications)
Adoption of halogen-free materials meeting IEC 62576 standards