Semtech Corporation GS9074ACTE3

Overview

GS9074ACTE3 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), and stable 27.5–28V clamping across temperature and current range. Used in USB Type-C PD input protection and load switch front-end safeguarding.

For engineers reviewing the GS9074ACTE3 datasheet, pinout, applications, or equivalent options, this page provides verified electrical specs, DFN-6 package layout guidance, clamping stability data, and direct alternatives for industrial and USB PD system design.

Technical Context

The GS9074ACTE3 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit upon voltage transients exceeding breakdown. Unlike conventional TVS diodes, its clamping voltage remains nearly constant due to decreasing R_DS(on) under surge conditions.

It operates over −40°C to +125°C with <20mΩ dynamic resistance, 175pF junction capacitance at 22V, and reverse leakage ≤600nA. The device is rated for 1120W peak pulse power and meets IEC 61000-4-4 (±4kV EFT) and IEC 61000-4-5 (±1kV unsymmetrical line surge).

Key Specifications

Pinout & Package

GS9074ACTE3 is housed in a RoHS-compliant DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required. All six terminals are functional: pins 1–3 serve as parallel ground connections; pins 4–6 form a low-inductance, parallel input path for protected line routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GS9074ACTE3, TDS2211P.C offers identical performance and supply chain continuity, while SMAJ22A trades clamping stability and surge robustness for lower unit cost - making it viable only in non-surge-critical, cost-sensitive consumer applications.

Availability

GS9074ACTE3 is available at Aetrix Electronics and suitable for USB Type-C PD implementations, industrial load switch protection, and IoT edge node power rail hardening requiring stable component supply across multi-year production cycles.

Supply support for GS9074ACTE3 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 protection, signal integrity, and wireless infrastructure.

The GS9074ACTE3 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-reliability 22V power-line protection applications demanding flat clamping and wide temperature stability.

FAQ

What is the exact package type and dimensions of GS9074ACTE3?

GS9074ACTE3 uses a 6-pin DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed pad not required. Pin 1 is marked by a laser dot; pins 1–3 are GND, pins 4–6 are IN. Land pattern follows Semtech's recommended 1.45mm × 1.45mm solder pad layout with 0.30mm pitch.

Does GS9074ACTE3 support bidirectional or unidirectional transient suppression?

GS9074ACTE3 is a unidirectional device rated for 22V working voltage with reverse standoff (V_RWM) of 22V and breakdown (V_BR) of 25–27.9V. It protects against positive transients on the IN-to-GND path only - polarity-sensitive placement is required in circuit design.

How does GS9074ACTE3 achieve stable clamping voltage across temperature?

GS9074ACTE3 achieves stable clamping via a precision-triggered FET shunt architecture. As temperature rises, the FET's R_DS(on) decreases, counteracting thermal drift in the trigger circuit - resulting in 27.5–28V clamping from −40°C to +125°C, unlike TVS diodes whose V_C increases with temperature.

Can GS9074ACTE3 be used on high-speed data lines like USB SuperSpeed or PCIe?

No - GS9074ACTE3 has 175pF junction capacitance at 22V, which would severely degrade signal integrity on high-speed differential pairs. It is intended exclusively for DC or low-frequency power/data lines (e.g., USB-C VBUS, CC, SBU). For SuperSpeed lanes, use sub-0.3pF devices like RClamp3371ZC.

What is the maximum surge energy GS9074ACTE3 can absorb per event?

GS9074ACTE3 is rated for 1120W peak pulse power (t_p = 8/20μs), corresponding to ~896mJ per event (calculated as ∫v(t)i(t)dt). This exceeds the energy of a ±1kV/42Ω IEC 61000-4-5 surge (≈330mJ), confirming single-event survivability under standard industrial test conditions.