What are the differences between FFC connector and FPC connector and the common types

The frequency of use of connectors is extremely high. In our lives, we have seen connectors more or less. For professionals, the connector is a device that needs to be touched every day. In order to enhance everyone's understanding of connectors, this article will explain the connectors from two aspects: 1. A brief introduction to the connectors, 2. The difference between FFC connectors and FPC connectors, and the common types of the two .

The difference between FFC connector and FPC connector and what are the common types

First, a brief introduction to the connector

The connector is CONNECTOR. Also known as connectors, plugs and sockets in China. Generally refers to electrical connectors. That is, a device that connects two active devices to transmit current or signal.

The connector is a component that our electronic engineering and technical personnel often contact. Its function is very simple: to build a bridge of communication between blocked or isolated circuits in the circuit, so that the current can flow and the circuit can realize the predetermined function. Connectors are an indispensable part of electronic equipment. Observing along the path of current flow, you will always find one or more connectors. Connector forms and structures are ever-changing. There are various types of connectors with different application objects, frequencies, power, and application environments. For example, the connectors for lighting on the court and the connectors for hard drives, and the connectors for lighting rockets are quite different. But no matter what kind of connector, it is necessary to ensure that the current flows smoothly, continuously and reliably. In general terms, what the connector is connected to is not only limited to current. In today's rapid development of optoelectronics technology, in the optical fiber system, the carrier of the signal is light. Glass and plastic replace the wires in the ordinary circuit, but the optical signal Connectors are also used in the pathways, and their functions are the same as circuit connectors. Since we only care about circuit connectors, this course will closely integrate Molex's products and focus on introducing circuit connectors and their applications.

The difference between FFC connector and FPC connector and what are the common types

Two, the difference and common types of FFC connectors and FPC connectors

Today's connector forms and structures are ever-changing. With the application object, frequency, power, application environment, etc., there are various types of connectors. The FFC connector is a flexible flat cable connector. It is a new type of data cable made of PET insulation material and extremely thin tinned flat copper wire, which is laminated through the production line of high-tech automation equipment. It has soft, flexible bending and folding. , Thin thickness, small size, simple connection, convenient disassembly, easy to solve electromagnetic shielding (EMI). The following mainly talks about the difference between FFC connector and FPC connector, and the commonly used types of FFC connector.

1. The difference between FFC connector and FPC connector

The FFC connector is a flexible flat cable connector, and the FPC connector is a flexible printed circuit. From the manufacturing of the two connectors, the way they are formed is different:

a. FFC is a flat copper foil sandwiched between upper and lower insulating foil films. The finished product is simpler and thicker.

b. FPC is to process FCCL (flexible copper clad foil) by chemical etching to obtain flexible circuit boards with different circuit patterns, single-sided, double-sided, and multilayer structures.

In terms of price, naturally FFC connectors are much cheaper. If the production cost is taken into account, more companies will like to use FFC connector related designs.

The difference between FFC connector and FPC connector and what are the common types

2. 7 common types of FFC connectors

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

Type B: Cross the reinforcing plate and paste it directly on the insulating tape;

Type C: The reinforcing plates at both ends are directly pasted on the conductor;

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

Type E: one end of the reinforcing plate is attached to the insulating tape, and the other end is directly soldered;

Type F: The reinforcing plates at both ends are directly attached to the insulating tape, and the inner half is peeled off;

Type G: Direct soldering at both ends.

Generally speaking, the development of today's FFC connector technology has the following characteristics: high-speed and digitization of signal transmission, integration of various signal transmissions, miniaturization and miniaturization of product volume, low-cost products, contact termination The way is surface-mounted, modular combination, convenient plug-in and so on.