Today Let ’ s talk about the five parameter units of PCB and what are the meaning of them.

1.   Dielectric Constant (DK value)

Typically indicates the capacity of a material to store electrical energy. The smaller the DK value, the less the material's ability to store electrical energy, and the faster the transmission speed.   Normally expressed by ∑ .

2.   TG (Glass Transition Temperature)

When the temperature rises to a certain range, the substrate will transition from a "glassy state" to a "rubbery state". The temperature at which this occurs is called the glass transition temperature (Tg). Tg is the highest temperature (℃) at which the base material remains "rigid".

3.   CTI (Comparative Tracking Index)

Indicates the quality of insulation. The larger the CTI value, the better the insulation.

4.   TD (Thermal Decomposition Temperature)

बोर्ड के थर्मल प्रतिरोध को मापने के लिए एक महत्वपूर्ण संकेतक।

5.   सीटीई (जेड-अक्ष)—(थर्मल का गुणांक Z-दिशा में विस्तार)

एक प्रदर्शन संकेतक दर्शाता है कि बोर्ड गर्मी के तहत कैसे फैलता और विघटित होता है। CTE मान जितना छोटा होगा, बोर्ड का प्रदर्शन उतना ही बेहतर होगा।