RCLAMP3321ZCTFT

Overview

The RCLAMP3321ZCTFT is a single-channel transient voltage suppression diode from Semtech's RailClamp series, designed for electrostatic discharge and electrical overstress protection. It operates at a working voltage of 3.3 V with a maximum clamping voltage of 7 V. The device features an ultra-low capacitance of 0.30 pF and is housed in a compact SLP0603P2X3J package (0201 metric). It withstands a peak pulse current of 8 A and dissipates up to 56 W of peak pulse power. The component supports contact discharge voltages of 12 kV and air gap discharge of 15 kV, operating within a temperature range of -40°C to +85°C.

Feature Summary

• Provides robust ESD and EOS protection for high-speed data lines while maintaining signal integrity through minimal capacitance.
• Utilizes a compact surface-mount footprint suitable for space-constrained portable electronic designs.

Applications

• Protection of USB Type-C interfaces
• High-speed serial data line safeguarding
• Mobile device input/output port protection

Procurement Notes

Verify the specific ordering suffix ZCTFT against the manufacturer's latest datasheet to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the part number with authorized distributors to confirm availability status and lead times prior to finalizing procurement plans.

Selection Notes

Select this component when protecting 3.3 V logic lines requiring low capacitance to preserve high-frequency signal quality. The bidirectional configuration is suitable for differential or AC-coupled signals. Evaluate the 7 V clamping voltage against the receiving IC's absolute maximum ratings to ensure adequate protection margins during transient events.

Part Context

This device belongs to the RailClamp family of circuit protection components manufactured by Semtech Corporation. The series focuses on providing industry-leading performance for sensitive electronics by combining low capacitance with high surge handling capabilities. It addresses the growing demand for reliable protection in miniaturized consumer electronics and industrial applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative TVS diodes based on matching voltage ratings, capacitance values, and package dimensions before implementation.

FAQ

What is the package type for the RCLAMP3321ZCTFT?

The component is housed in an SLP0603P2X3J package, which corresponds to the 0201 (0603 metric) footprint.

What is the maximum clamping voltage specified for this device?

The maximum clamping voltage is 7 V under standard test conditions.