On the feasibility of PCB boards operating at 150°C

When discussing the question of whether a PCB board can withstand high temperatures of 150°C for a long period of time, we must pay attention to the Tg value of the board, i.e., the glass transition temperature, which is a key indicator of the softening temperature of the board.

Classification and selection of Tg values

The Tg values are categorized into different grades for FR-4 sheets with different temperature requirements:

• Ordinary TG130: For temperature environments around 130-140 degrees Celsius, which is the Tg value for common FR-4 sheets.
• Medium TG150: For environments with higher temperature requirements, but the exact temperature range is not specified in the original text.
• High TG170: Suitable for temperatures of around 170 degrees Celsius, this sheet is more stable in a prolonged high-temperature working environment.

with regards to260 degrees Celsiusextreme temperatures, the use of polyimide materials with Tg values capable of meeting such high temperature requirements should be selected.

Recommendations for 150°C operating conditions

In response to the customer's demand for PCB boards that need to work at high temperatures of 150°C for a long period of time, our engineers recommend the choice of theTG170 sheet of SangYi. This sheet is able to withstand temperatures of up to 150°C for long periods of time, thus ensuring product stability and reliability.

Note on PCB thickness

As for the thickness of the PCB board, it can be customized according to the specific requirements of customers. The thickness of the board is adjustable to meet the needs of different application scenarios.