FR107WS and SM4007PL – Universal Rectifier Diodes for Modern Circuits

FR107WS and SM4007PL are rectifier diodes that share a range of features making them exceptionally versatile and reliable for electronic projects. Although they differ slightly in operational technology, their common characteristics have earned them high praise among both hobbyists and professional designers.

Why should you keep them on hand?

• Suitable for most power supply projects
• Small but powerful – ideal for SMD boards
• Durable and proven – fewer failures, more peace of mind
• Excellent price/performance ratio
• Versatile – perfect for DIY, repair, and production

Common features:

• High reverse voltage – up to 1000V, enabling use in high-voltage power supply circuits.
• Rated forward current of 1A – ideal for many typical low- and medium-power applications.
• Small, compact SMD package – saves space on the PCB, essential in modern devices.
• High reliability – proven in long-term use, resistant to overloads and environmental conditions.
• Easy for automatic assembly – thanks to standard packages compatible with common SMT processes.
• Affordable and widely available – easily sourced from electronic wholesalers and stores, also in large production volumes.

Applications:

• AC/DC rectifiers – classic use in linear and switching power supplies.
• Protection circuits – e.g. flyback diodes in relays or motors.
• LED lighting – as rectifying or protective elements.
• Switched-mode power supplies (SMPS) – in the voltage rectification path or as auxiliary diodes.
• Power modules, chargers, converters – anywhere durability, reliability, and compact size are needed.

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