Is the FR4 Isola 370HR PCB important in PCB?

I receive the samples BOM of our PCBA factory. It remarks that PCB is FR4 Isola 370HR. What is this and is it reliable materials?

October 11, 2023

FR4 is the generic name for the epoxy fiberglass laminated dielectric used as the base for most (probably 95%) of PCBs. There are others for really cheap applications (phenolic) and some really high-dollar stuff for extreme conditions and circuits. But FR4 is the stuff of choice.
Isola is an FR4 manufacturer.
370HR is their particular trademarked name and model number for their FR4.

When you place orders to PCBA factory, it is not necessary to specify the manufacturer of FR4. They often have their FR4 suppliers which have long-term cooperation in terms of cost and stable supply. Basically speaking, as a buyer, you can just consider the following factors of FR4.

Meeting certain UL standards for flammability.
Meeting quality standard.

These are enough to contribute good effect to the your final products.

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Oliver Smith

What Others Are Asking

What will be the role of a copper layer in a metal core PCB in thermal dissipation?

In the design of a power electronic PCB, I want to use a metal PCB for heat dissipation of a TO-220 package MOSFET. To do that I want to mount metal PCB on the MOSFET with the use of thermal paste and screw exactly like we do when we use heatsink for the same package. Should I leave the copper of PCB between MOSFET surface and dielectric of PCB or remove the copper surface and leave only the dielectric opening?

Oliver Smith December 5, 2023

What is the difference between a prototype PCB and a production PCB?

My project have gone through from design, prototype to mass production after lots of discussion and adjustment. Now the manufacturer are making our products in their product lines. And I would like to know is there any differences between the prototypes in my hand now and the final products output by the manufacturer?

Oliver Smith September 25, 2023

Is there any problems if I change 0805 too 0402 surface mount or smaller?

In order to reduce the size of a PCB, I will probably have to use smaller SM components. I currently use mostly 0805 passives, and am thinking about going to 0402 or smaller. Apart from power dissipation considerations, any pitfalls I should be aware of when making the transition?

Oliver Smith December 12, 2023

Is the FR4 Isola 370HR PCB important in PCB?

Oliver Smith

Oliver Smith

What Others Are Asking

What will be the role of a copper layer in a metal core PCB in thermal dissipation?

What is the difference between a prototype PCB and a production PCB?

Is there any problems if I change 0805 too 0402 surface mount or smaller?

Read Detailed Advice From Blog Articles