What is FR2 FR4?

FR1 is basically the same as FR2. FR3 is also basically FR2. But instead of phenolic resin it uses an epoxy resin binder. FR4 (FR = Flame Retardent)is a glass fiber epoxy laminate. It is the most commonly used PCB material.

What is FR1 and FR2 PCB?

FR1 is basically the same as FR2. FR1 has a higher TG of 130oC instead of 105oC for FR2. In China FR4 is the most widely used PCB base material, next is FR1 then FR2. But FR1 and FR2 are usually used for 1-layer PCBs because they are not good for passing through holes.

What is FR4 PCB?

FR4 is the most common material used for printed circuit boards today. FR4 describes a class of glass fiber epoxy laminate that is flame retardant. The standard values of the processed FR4 materials can be found in following PDF FR4 material – standard values.

How does a PCB circuit work?

A standard PCB in its most basic form is a plastic board covered in fibreglass. Components are mounted on a non-conductive board and connected with small pathways, called traces. These traces allow the electrical components across the board to function by passing electricity through.

What is FR1 and FR2 in 5G?

Frequency ranges, FR1 & FR2 Two different frequency ranges are available for the 5G technology and the different ranges have been designated FR1 – frequency range 1 and FR2 – frequency range 2. The higher frequency bands in range FR2 are aimed at providing short range very high data rate capability for the 5G radio.

What is FR4 made of?

FR4 is a glass fiber epoxy laminate. It is the most commonly used PCB material. A 1.60mm FR4 uses 8 layers of (7628) glass fiber material. The red UL/manufacturers logo is in the middle (layer 4).

What is the main function of a circuit board?

The primary function of a circuit board is to connect all the electronic components of a device in a compact space. It also ensures these components are safely insulated when they’re being connected to a power source.

What are circuits made of?

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow.

What are FR1 and FR2 bands?

FR1 defines bands in the sub-6 GHz spectrum (although 7125 MHz is the maximum) and FR2 defines bands in the mmWave spectrum. Because of the higher carrier frequencies in FR2, it has a higher maximum bandwidth. Bandwidths include 5-100 MHz (FR1) and 50/100/200/400 MHz (FR2).

What is the range of frequency for the 5G FR2?

5G NR (New Radio) Frequency Bands