Semtech Corporation GS6042-INE3

Overview

GS6042-INE3 from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and DFN 1.6×1.6×0.55mm 6-lead package - deployed in USB Type-C PD input protection and industrial load switch front-end circuits.

For engineers reviewing the GS6042-INE3 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature, dynamic resistance under surge, junction capacitance for signal integrity, and validated performance against IEC 61000-4-5 ±1kV (1.2/50μs) and IEC 61000-4-4 ±4kV EFT stress.

Technical Context

The GS6042-INE3 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events and rapidly shunts transient current to ground. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A surge currents due to decreasing R_DS(on) under increasing current.

It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and exhibits 20mΩ dynamic resistance (measured 1–40A, 8/20μs). Its 175pF junction capacitance at 22V/1MHz and <600nA leakage at VRWM support low-interference protection of medium-speed power/data lines.

Key Specifications

Pinout & Package

GS6042-INE3 is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required - all six terminals are functional and must be connected per layout guidelines for full 40A surge rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TDS2211P.C, GS6042-INE3 offers identical protection performance and form factor but with Aetrix-specific logistics support; versus SMAJ22A, GS6042-INE3 delivers 14.5V lower clamping, 10× lower dynamic resistance, and guaranteed stability from –40°C to +125°C - critical for industrial and USB PD designs.

Availability

GS6042-INE3 is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT edge node power buses requiring stable component supply, full traceability, and long-term lifecycle management.

Supply support for GS6042-INE3 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 high-performance analog and mixed-signal semiconductors for power management, protection, sensing, and signal integrity.

The GS6042-INE3 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 flat clamping and temperature stability are mandatory.

FAQ

What is the primary protection function of the GS6042-INE3?

The GS6042-INE3 functions as a Transient Diverting Suppressor that actively shunts high-energy EOS events - including ESD, EFT, and lightning-induced 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 runaway. This behavior distinguishes GS6042-INE3 from passive TVS diodes and makes it especially effective for protecting USB PD controllers and industrial load switches.

Does the GS6042-INE3 require a thermal pad on the PCB?

No, the GS6042-INE3 does not require a thermal pad. Its DFN 1.6×1.6×0.55mm package dissipates surge energy through the low-R_DS(on) FET channel rather than a PN junction, eliminating the need for additional thermal mass. Per Semtech's layout guidance, optimal performance is achieved by connecting all GND pins (1–3) and IN pins (4–6) directly to solid copper planes using multiple vias - not by adding an exposed thermal pad.

How does GS6042-INE3 clamping voltage compare to standard TVS diodes at elevated temperature?

Unlike standard TVS diodes whose clamping voltage rises significantly with temperature - often exceeding 40V at 125°C - the GS6042-INE3 maintains 27.5–28V clamping across –40°C to +125°C. This stability stems from its FET-based architecture, where clamping is governed by the trigger circuit's breakdown voltage rather than junction characteristics. As a result, GS6042-INE3 provides predictable, temperature-invariant protection for industrial and automotive applications where ambient extremes are common.

Can GS6042-INE3 be used on high-speed data lines like USB SuperSpeed or DisplayPort?

No, GS6042-INE3 is not suitable for high-speed data lines. Its 175pF junction capacitance is optimized for power and medium-speed control lines (e.g., VBUS, load switch EN, CC lines), not differential signaling paths requiring sub-0.3pF loading. For USB SS, DP, or HDMI lanes, Semtech recommends dedicated low-capacitance TVS devices such as RClamp3371ZC (<0.25pF). GS6042-INE3 should be applied exclusively to single-ended 22V power or enable signals.

What IEC standards does GS6042-INE3 meet out-of-the-box?

The GS6042-INE3 is characterized and specified to meet IEC 61000-4-2 (±30kV contact/air ESD), IEC 61000-4-4 (±4kV EFT at 5/50ns), and IEC 61000-4-5 (40A 8/20μs surge and ±1kV 1.2/50μs combo wave with RS = 42Ω). These ratings are verified per the device's published datasheet and apply directly to GS6042-INE3 without derating or external circuitry - enabling straightforward compliance validation in USB-C PD and industrial equipment designs.