What is the Difference Between FFC and FPC Connectors?

2023-04-02 valnk Knowledge base

Connectors are used very frequently. Almost all of us have seen connectors in our life. For professionals, connectors are devices that need to be contacted in daily life. In order to improve your understanding of connectors, this paper will elaborate on two aspects: 1 A brief introduction of connectors, and 2 This paper introduces the differences between FFC connectors and FPC connectors, as well as their common types.

1. Connector introduction

The connector is a connector. Usually refers to electrical connectors. That is to connect two active devices to transmit current or signal.


Connectors are parts that electronic engineers and technicians often come into contact with. Its function is very simple: set up a communication bridge between the blocked or isolated circuits in the circuit to make the current flow and make the circuit achieve the predetermined function.


The connector is an essential component of electronic devices. It can always find one or more connectors when it is observed along the path of the current flow. Due to the application object of the connector Frequency Power Due to different application environments, the forms of connectors are also different, so there are many kinds of connectors. For example, the connector used for stadium lighting and the connector of the hard disk is very different from the connector of the ignition rocket. However, no matter what kind of connection mode, it is necessary to ensure a smooth, continuous, and stable flow of current. In the general sense, the connector is not limited to the current. Today, with the rapid development of optoelectronic technology, the carrier of optical fiber system transmission signal is light. Glass and plastic replace the wires in the general circuit, but its function is the same as the circuit connector, and the optical signal path also uses connectors.


2. Differences and common types of FFC and FPC connectors

Nowadays, the form and structure of connectors vary greatly with the application object Frequency Power There are various forms of connectors due to different application environments. FFC connector is a new type of data cable made of pet insulating material and extremely thin tinned flat copper wire and pressed by the production line of high-tech automation equipment Bend and fold at will The thickness is thin Small size Simple connection Convenient disassembly and assembly Easy to solve electromagnetic shielding (EMI). The following are the differences between the FFC connector and FPC connector, and the commonly used types of FFC connector.


3. Differences between FFC and FPC connectors

The FFC connector is a flexible plane cable connector and the FPC connector is a flexible printed line. From the perspective of their connectors, their line composition methods are different:

① FFC adopts two layers of insulating foil paper, with a flat copper foil sandwiched in the middle. The finished product is relatively simple and thick.

② FPC is a flexible circuit board with different single-sided, double-sided, and multi-layer structures made of FCCL (flexible copper-clad foil) after chemical corrosion.


In terms of price, a natural FFC connector is much cheaper. If considering the production cost, more manufacturers will choose to use the relevant design of the FFC connector.

4. There are 7 common types of FFC connectors

Type A: both ends are connected, and the reinforcing plate is pasted on the insulating adhesive tape;

Type B: the cross reinforcing sheet is directly pasted on the insulating adhesive tape;

Type C: two end reinforcing plates are directly attached to the conductor;

Type D: cross paste the reinforcing plates at both ends and paste them directly on the conductor;

Type E: one end of the reinforcing sheet is pasted on the insulating tape, and the other end is directly soldered;

Type F: two reinforcing plates are directly bonded to the insulating adhesive tape, and half of them are peeled off;

Type G: two-end direct soldering.


In general, the development of FFC connector technology shows the following characteristics: high speed, digitization, and high-speed transmission Integration of various signal transmissions. The product is small and slightly small. The product is cheap. The contact termination method can be pasted to Module assembly Pluggable, convenient, and so on.

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