Скачать или смотреть What Are the Differences between FR1 and FR2?

𝙒𝙝𝙖𝙩 𝘼𝙧𝙚 𝙩𝙝𝙚 𝘿𝙞𝙛𝙛𝙚𝙧𝙚𝙣𝙘𝙚𝙨 𝙗𝙚𝙩𝙬𝙚𝙚𝙣 𝙁𝙍1 𝙖𝙣𝙙 𝙁𝙍2?
FR1 and FR2 copper clad laminates share several similarities. But are also distinct in key ways. Both are paper-based substrates made with phenolic resin. They are also commonly used in single-sided PCBs. They are affordable, easy to process, and environmentally friendly, meeting RoHS regulations. However, their differences lie in thermal performance, durability, and specific use cases. Below are the key Differences Between FR1 and FR2:
𝙂𝙡𝙖𝙨𝙨 𝙏𝙧𝙖𝙣𝙨𝙞𝙩𝙞𝙤𝙣 𝙏𝙚𝙢𝙥𝙚𝙧𝙖𝙩𝙪𝙧𝙚 (𝙏𝙜):
FR1 has a Tg of 130°C while FR2 has a Tg of 105°C. This makes it more heat-resistant than FR2. This difference affects their performance in high-temperature environments, where FR1 outperforms FR2.
𝙏𝙝𝙚𝙧𝙢𝙖𝙡 𝙍𝙚𝙨𝙞𝙨𝙩𝙖𝙣𝙘𝙚:
FR1 CCL can handle moderate heat better. Therefore, it is more suitable for applications where occasional heat exposure occurs. FR2’s lower thermal resistance limits its use to low-stress environments.
𝘼𝙫𝙖𝙞𝙡𝙖𝙗𝙞𝙡𝙞𝙩𝙮:
Though FR1 predates FR2, most manufacturers produce FR1 laminates but rarely produce FR2. Their costs and applications are very similar. However, FR1 has slightly better thermal resistance. Thus, it is more commonly used than FR2.
𝘿𝙪𝙧𝙖𝙗𝙞𝙡𝙞𝙩𝙮:
While both are made of phenolic resin and paper, FR1 has a better profile. It offers better mechanical strength and flame retardance compared to FR2. Therefore, FR1 is more durable.
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