21039-0365

Series:	Premo-Flex™ 21039
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Cable Type:	FFC, FPC
Moisture Sensitivity Level (MSL):	--
Number of Conductors:	20
Pitch:	0.039" (1.00mm)
Length:	6.000" (152.40mm)
Length - Exposed Ends:	0.157" (4.00mm)
Termination Style:	Top on Both Sides, Backers on Both Sides

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Flat Flex, Ribbon Jumper Cables

Flat flex, ribbon jumper cables are cable assemblies designed for high-speed, high-density applications. They are designed in a flat-flex format, providing low profile flat-flex jumper solutions that can meet very exacting requirements. They offer excellent electrical performance, very low noise and crosstalk levels, and superior signal integrity.

21039-0365 Application Fields

Flat flex, ribbon jumper cables are suitable for many different applications. They are commonly used for radio frequency and microwave applications, such as antenna and amplifier connections. They are also used for digital and power applications, such as short-to-ground connections, shielding, grounding, and dynamic signal routing. Additionally, they are often used for PCB wiring, multi-board connections (GBICs, SFPs, etc.), and cooling systems.

21039-0365 Electric Working Principle

The 21039-0365 flat flex, ribbon jumper cables function on an electrical principle called \'Thevenin\'s Equation\', which states that the voltage across two terminals of a circuit is equal to the source voltage, minus the voltage drop from the source to the equivalent impedance at the terminals. In other words, the voltage drop is determined by the source voltage and the load impedance. This means that, in order to achieve the desired voltage across the terminals, the load impedance must be carefully matched to the source voltage.The 21039-0365 flat flex, ribbon jumper cables are a pre-made assembly designed to provide the correct voltage drop across the terminals, and therefore provide a reliable connection. They consist of thin, flexible strips of material, usually made of polyurethane, polypropylene, or polyethylene, that are closely spaced below a soft conductive plastic layer. The flat flex is attached to two contacts, usually made of copper, and insulated to prevent any short-circuits. The flat flex then carries the current between the contacts, ensuring a consistent voltage is maintained across the terminals.

Advantages of Flat Flex, Ribbon Jumper Cables

Flat flex, ribbon jumper cables offer a number of advantages over more traditional cable assemblies. Firstly, they are lightweight, flexible, and offer excellent signal integrity. Secondly, they provide a low-profile cable assembly-which is ideal for applications where space is tight-as well as excellent electrical noise resistance. Thirdly, the end connections are also easy to terminate, as the flat flex can easily be cut to length. Finally, they are available in a range of pre-made lengths and connection types, allowing for quick and easy installation.

Conclusion

Flat flex, ribbon jumper cables are an excellent choice for high-speed, high-density applications, such as radio frequency and microwave applications, digital and power applications, PCB wiring, and multi-board connections. Thanks to their thin, flexible construction, they offer excellent electrical performance, low noise and crosstalk levels, and superior signal integrity. Plus, they are available in a range of pre-made lengths and connection types, allowing for quick and easy installation.

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