Semtech Corporation GS2960AIBTE3

Overview

GS2960AIBTE3 from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance - enabling robust USB PD and Type-C bus protection in industrial and portable systems.

For engineers reviewing the GS2960AIBTE3 datasheet, pinout, applications, or equivalent options, key selection criteria include its constant-clamp behavior across temperature and current, DFN 1.6×1.6mm 6-lead package footprint, low 175pF junction capacitance, and FET-based shunt architecture that outperforms conventional TVS diodes in clamping stability and thermal resilience.

Technical Context

The GS2960AIBTE3 uses a surge-rated MOSFET as its primary protection element, activated by a precision trigger circuit when transient voltage exceeds breakdown. Unlike standard TVS diodes, its clamping voltage remains nearly flat (27.5–28V) from 24A to 40A and across −40°C to +125°C due to decreasing R_DS(on) under surge conditions.

It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and features ultra-low dynamic resistance (20mΩ) and low leakage (<600nA at 22V). Its functional architecture separates trigger sensing and power shunting, enabling stable performance in high-slew-rate environments like USB PD bus lines.

Key Specifications

Pinout & Package

GS2960AIBTE3 is housed in a RoHS-compliant, halogen-free DFN 1.6mm × 1.6mm × 0.55mm 6-lead package with exposed thermal pad not required (energy dissipated in silicon). All pins must be connected: Pins 1–3 are ground terminals; Pins 4–6 are input terminals tied directly to the protected line.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TDS2211P, GS2960AIBTE3 offers identical performance and form factor but improved procurement flexibility through Aetrix; versus uClamp2411ZA, it delivers 67% higher surge current capacity and 2.5V lower clamping - making it the sole suitable option for 22V power rail protection.

Availability

GS2960AIBTE3 is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch protection, and 22V storage device power rail designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for GS2960AIBTE3 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 ICs for precision protection, signal integrity, and wireless infrastructure.

The GS2960AIBTE3 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-voltage, high-surge industrial and USB-C power applications where clamping stability across temperature and current is critical.

FAQ

What is the exact function of GS2960AIBTE3 in a USB PD design?

The GS2960AIBTE3 serves as the primary front-end transient suppressor on the USB PD VBUS line, clamping surge voltages to 27.5–28V during 40A IEC 61000-4-5 events and ±30kV ESD strikes. Its FET-based architecture ensures this clamping level remains stable across −40°C to +125°C, protecting downstream PD controllers and load switches that cannot tolerate excursions above 30V. GS2960AIBTE3 is placed directly at the Type-C connector to minimize trace inductance.

Is GS2960AIBTE3 pin-compatible with standard TVS diodes in DFN packages?

No - GS2960AIBTE3 uses a unique 6-pin DFN configuration with three parallel GND pins (1–3) and three parallel IN pins (4–6), unlike typical 2-pin unidirectional or bidirectional TVS diodes. This triple-terminal layout is essential to achieve its 40A surge rating and low dynamic resistance. Replacing a 2-pin TVS with GS2960AIBTE3 requires PCB layout revision to accommodate the 6-pin footprint and symmetric routing.

Does GS2960AIBTE3 require a thermal pad or heatsink on the PCB?

No - GS2960AIBTE3 dissipates surge energy in its silicon FET structure rather than at a PN junction, eliminating the need for an exposed thermal pad or external heatsink. The DFN package relies on low-inductance connections to internal ground planes via Pins 1–3 and proper PCB copper pour. Layout guidelines emphasize multiple vias to ground layers, not thermal mass addition.

How does GS2960AIBTE3 differ from traditional TVS diodes in clamping behavior?

Traditional TVS diodes exhibit linearly rising clamping voltage (V_C = V_BR + I_PP × R_DYN) due to fixed dynamic resistance, causing V_C to exceed 35V at 40A and 125°C. GS2960AIBTE3 uses a triggered FET whose R_DS(on) decreases under surge, resulting in flat 27.5–28V clamping from 24A to 40A and across the full −40°C to +125°C range - verified in Semtech's Figure 3 clamping comparison data.

Can GS2960AIBTE3 be used to protect 24V industrial control lines?

GS2960AIBTE3 is rated for 22V working voltage (V_RWM), with 25–27.9V breakdown and 27.5–28V clamping - making it unsuitable for continuous 24V operation where leakage and reliability would be compromised. For 24V systems, Semtech's TDS2411P (24V-rated) or uClamp2411ZA (24V, lower IPP) are appropriate alternatives; GS2960AIBTE3 must only be applied in ≤22V nominal applications such as USB PD.