NUF2221W1T2G

Overview

The NUF2221W1T2G is a bidirectional ESD protection diode and USB upstream terminator manufactured by onsemi. It integrates line termination, EMI filtering, and electrostatic discharge protection in a single compact component. The device operates within a voltage range of 5.25 V and features a breakdown voltage of 5.6 V. It provides robust protection with a contact ESD voltage rating of 25 kV and an air gap ESD voltage rating of 30 kV. The diode capacitance is specified at 56.4 pF. It functions reliably across a temperature range from -55°C to +125°C and is housed in a SC-88-6 (SOT-363-6) surface-mount package.

Feature Summary

• Integrates USB upstream line termination with ESD protection capabilities
• Provides bidirectional signal protection for high-speed data lines
• Includes inherent EMI filtering functionality to reduce noise

Applications

• USB upstream port protection
• High-speed data line ESD suppression
• Portable electronic device input/output interfaces

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing to ensure compatibility with your design requirements. Confirm that the component meets RoHS compliance standards as indicated in official documentation. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component for designs requiring combined termination and protection in limited space. The low capacitance value supports high-speed data integrity. Ensure the operating voltage aligns with the system's 5.25 V specification. The bidirectional nature makes it suitable for differential or single-ended lines requiring symmetric protection characteristics.

Part Context

This component belongs to onsemi's portfolio of ESD protection devices designed for consumer electronics. It addresses the need for compact solutions that handle both signal termination and transient voltage suppression. The integration of these functions reduces the bill of materials and simplifies layout compared to discrete components.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pinout compatibility and electrical parameter equivalence before replacing.