A Brief Introduction to the 94V 0 Printed Circuit Board

Thus, 94V-0 PCB means the printed circuit board (PCB) with using a flame retardant 4 (FR-4) glass epoxy laminate that has been tested on the UL 94 flammability standard and meeting the V-0 rating. UL 94 standard offers test methods to determine the ignitability, flaming combustion, and other fire-enduring characteristics of plastics that are applied in devices and appliances.

The number 94V-0 implies that after the UL 94 vertical burning test, the material has self-extinguished on the first flame application from the first flame application and no drips were flaming; for the second flame application, it burnt for less than 30 seconds.

This high flammability rating makes 94v0 suitable where there is electrical equipment that operates in conditions that expose it to high fire risks. Besides flame protectiveness, the designation of epoxy resin improves thermal characteristics, chemical stability, and mechanical strength.

94v0 FRP-4 laminates insulate heat with ability to take flexing and vibration stresses. All these electrical, mechanical and chemical as well as fire prevention properties make 94V-0 PCB substrates an ideal material for IID control to space applications systems.

HB: This rating shows that the expansion rate on the horizontal cylinder specimen is slightly above sluggish. V-2: V stands for vertical and it means that burn issuing stops within 30 seconds at the time of testing the specimen vertically. V-1: V-1 is the same as V-2, but the particles aren’t supposed to become inflamed, even in the drips. V-0: By V-0 rating, the burning of a specimen in the vertical position does not spread beyond 10 seconds, and the particles of burning dropping should not flare up. In the last two classifications, UL tests bar and plaque specimens. Furthermore, the source of the flame is about five times more severe of that used in the upper four groupings.

5VB: Burning should extinguish in not more than 60 seconds on the both specimens when tested on its vertically. 5VA: With vertical samples, the burning stops within 60 seconds, and the plaque may not form a hole. There should also be no drips.

The outstanding characteristics of the 94V-0 PCBs include the following:

The presented Fire Resistance rates prove that the 94V-0 PCBs save lives of electronics. As has been demonstrated when facing conditions related to possible combustion, they are a reliable solution.

The 94V-0 circuit boards meet standard electronic parts to make a right board for mounting of today parts. Since these boards possess specific characteristics for withstanding high temperatures, they are suitable for use in circuit construction.

These boards are also designed with improved structure to allow efficient management of available space. This facility is advantageous to professionals in 94V-0 PCB to create more extensive circuits by layering both conductors and insulating materials.

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