Semtech Corporation GS2986-INTE3Z

Overview

GS2986-INTE3Z from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or data lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance - deployed in USB PD, USB Type-C, and industrial load switch input protection.

For engineers reviewing the GS2986-INTE3Z datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, temperature-stable clamping behavior, and real-world implementation context for surge-protected bus design.

Technical Context

The GS2986-INTE3Z uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A (8/20μs) due to decreasing R_DS(on) under surge conditions.

It operates from −40°C to +125°C with stable 27.5–28V clamping at rated current, 175pF junction capacitance at 22V/1MHz, and <600nA reverse leakage - enabling robust protection without thermal derating penalties typical of junction-based TVS devices.

Key Specifications

Pinout & Package

GS2986-INTE3Z is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad (no solder mask defined). All six terminals are surface-mount; pins 1–3 are internally connected GND, pins 4–6 are internally connected IN - requiring direct routing to protected line and ground plane with minimal trace inductance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Compared with GS2986-INTE3Z, TDS2211P.C offers identical performance and drop-in compatibility, while uClamp2411ZA serves a fundamentally different signal-integrity-critical role with insufficient surge rating and clamping for power-rail deployment.

Availability

GS2986-INTE3Z is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT edge node power rails requiring stable component supply with guaranteed long-term manufacturability and full compliance documentation.

Supply support for GS2986-INTE3Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Semtech Corporation is a U.S.-based fabless semiconductor company specializing in analog and mixed-signal ICs for precision sensing, protection, and connectivity - with leadership in transient suppression, LoRa® wireless, and signal integrity solutions.

The GS2986-INTE3Z belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 22V power rail protection where stable clamping and temperature independence are critical.

FAQ

What is the primary protection function of the GS2986-INTE3Z?

The GS2986-INTE3Z functions as a transient diverting suppressor that shunts high-energy EOS events - including IEC 61000-4-2 ESD, IEC 61000-4-4 EFT, and IEC 61000-4-5 surges - away from sensitive downstream components. It achieves this using a precision-triggered surge-rated FET, delivering stable 27.5–28V clamping at 40A without thermal derating - unlike conventional TVS diodes whose clamping rises with current and temperature.

Does the GS2986-INTE3Z require external bias or control signals to operate?

No, the GS2986-INTE3Z is fully passive and autonomous. It contains an integrated trigger circuit and drive stage that activate the internal shunt FET when transient voltage exceeds its breakdown threshold - no external power, enable pin, or configuration is needed. The device remains transparent during normal 22V operation and responds within nanoseconds to overvoltage events.

Can GS2986-INTE3Z be used on high-speed data lines such as USB SuperSpeed or PCIe?

No, GS2986-INTE3Z is not suitable for high-speed data lines. Its 175pF junction capacitance at 22V would severely degrade signal integrity on differential pairs operating above ~100Mbps. It is intended exclusively for DC power rails and low-speed control lines (e.g., load switch enable, USB-C CC) where capacitance is non-critical - use sub-0.3pF devices like RClamp3371ZC for SuperSpeed lanes.

How should the GS2986-INTE3Z be laid out on the PCB for optimal surge performance?

Place GS2986-INTE3Z as close as possible to the protected connector - ideally within 5mm - with pins 4–6 tied together via a short, wide trace to the incoming line, and pins 1–3 connected to a solid ground plane using ≥3 thermal vias. Avoid stubs or splits in the GND path; do not route other signals beneath the device. No thermal pad soldering is required - energy is dissipated in the silicon FET, not the package.

Is GS2986-INTE3Z compliant with RoHS and halogen-free standards?

Yes, GS2986-INTE3Z is Pb-free, halogen-free, and fully compliant with RoHS Directive 2011/65/EU and WEEE Directive 2012/19/EU. Its molding compound meets UL 94V-0 flammability rating, and lead finish is matte tin - confirmed in Semtech's official datasheet Rev 2.5 and material declarations.