onsemi

NUP4201DR2

NUP4201DR2 Description

The NUP4201DR2 from onsemi is a surface-mount TVS diode designed for general-purpose transient voltage suppression in electronic circuits. This 4-channel unidirectional steering diode offers robust protection with a 5V reverse standoff voltage and a 6V minimum breakdown voltage, clamping transient voltages up to 25V at 25A (8/20µs). Its low capacitance (5pF @ 1MHz) ensures minimal signal distortion, making it suitable for high-speed data lines. Packaged in an 8-SOIC tape & reel (TR), it is optimized for automated assembly. Though obsolete, it remains a reliable choice for legacy designs requiring rail-to-rail protection and 500W peak pulse power handling.

NUP4201DR2 Features

• High Surge Protection: Handles 25A peak pulse current (8/20µs) and 500W peak power dissipation.
• Low Clamping Voltage: Limits transients to 25V max, safeguarding sensitive components.
• Minimal Signal Interference: 5pF capacitance at 1MHz ensures compatibility with high-frequency circuits.
• Multi-Channel Design: 4 unidirectional channels provide comprehensive protection for multi-line interfaces.
• Automation-Friendly: Tape & reel packaging and MSL1 (unlimited) moisture sensitivity enable seamless integration into production.
• Compliance: REACH unaffected and EAR99 classified for global deployment.

NUP4201DR2 Applications

• Power Line Protection: Shields DC power rails (e.g., 5V systems) from ESD, EFT, and lightning-induced surges.
• Data Interfaces: Protects USB, HDMI, or Ethernet lines where low capacitance is critical.
• Industrial Electronics: Guards sensors, PLCs, and control systems against voltage transients.
• Legacy Systems: Ideal for maintaining or repairing older designs requiring rail-to-rail TVS diodes.

Conclusion of NUP4201DR2

The NUP4201DR2 excels in transient suppression with its high power handling, low clamping voltage, and multi-channel design. While obsolete, its balance of performance and compact packaging makes it a pragmatic choice for general-purpose circuit protection, particularly in high-speed or multi-line applications. Engineers should evaluate alternative modern equivalents for new designs but can rely on this diode for existing systems requiring proven reliability.