The PCB絕緣 Diaries

瞬態過電壓是指在極短時間內發生的高電壓脈衝，可能持續幾微秒到幾毫秒。這些過電壓不屬於設備正常運作的工作電壓範圍，但必須被考慮進安全設計，因為它們足以擊穿絕緣或設備損壞。

依據UL1310下列條文要求，輸出接頭（output connector）不可使用同軸電纜的連接器（coaxial cable connector）。

Partnering with JLCPCB for strong PCB methods that fulfill the demanding environmental technical specs of significant infrastructure assignments.

塑料等柔性基板非常適合滿足柔性電路板的絕緣要求。 另一方面，金屬是優良的熱導體，同時保持功率電子的冷卻。

板裝-插孔式包裝 板裝-表面貼裝式包裝 基座型包裝 導軌型包裝 應用產業

衰减原因：高温高湿下，水汽渗透到表面处理层，溶解残留离子（如助焊剂、金属离子）形成 “电解液”，离子在偏压作用下迁移，让绝缘电阻降低 —— 就像橡胶吸水后变潮湿，导电能力变强；

JLCPCB fulfills the stringent excellent necessities of Siemens' industrial automation solutions by disciplined producing and system Manage.

JLCPCB delivers 1-cease Digital and mechanical producing methods to empower components innovators around the globe.

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爬電距離的選擇以日常運行時的額定工作電壓為依據，工作電壓越高，對絕緣的需求越大，所需爬電距離也越長。

By streamlining your entire approach—from buying and areas PCB絕緣 sourcing to PCBA prototyping—you are able to receive your concluded boards in as rapidly as 1 week. Permitting you to iterate, make improvements to, and provide on time or even.

工作電壓會直接影響你需要設計的「間隙距離」和「爬電距離」大小。電壓越高，潛在的絕緣需求和空氣/表面擊穿風險越高，安全距離需求就越大。

不同的絕緣措施(如基本絕緣、雙重絕緣或強化絕緣)對爬電距離的要求有所不同，越高等級的絕緣保護，所需距離越長。

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