Semtech Corporation 1N6080

Overview

1N6080 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), and stable 27.5–28V clamping across temperature and current range - deployed in USB Type-C PD input protection and load switch front-end safeguarding.

For engineers reviewing the 1N6080 datasheet, pinout, applications, or equivalent options, this device delivers constant-voltage clamping via integrated shunt FET architecture - critical for maintaining PD controller integrity under lightning surges, industrial transients, and high-temperature operation without voltage drift.

Technical Context

The 1N6080 uses a precision-triggered surge-rated FET as its primary protection element, activated only during overvoltage events - unlike conventional TVS diodes, it avoids junction-based energy dissipation and exhibits near-zero dynamic resistance (20 mΩ) at 40A. Its trigger circuit sets breakdown at 25–27.9V, enabling clamping tightly around 27.6V regardless of pulse amplitude.

It operates across –40°C to +125°C with <600 nA leakage at 22V and 175 pF capacitance at 1 MHz/22V reverse bias - optimized for low-interference placement on high-speed bus inputs where parasitic capacitance must be constrained without sacrificing surge robustness.

Key Specifications

Pinout & Package

1N6080 is housed in a RoHS-compliant DFN 1.6 mm × 1.6 mm × 0.55 mm 6-lead package with exposed thermal pad not required - all pins are electrically active and must be connected for full 40A rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMAJ22A and TDS2211P, the 1N6080 offers identical electrical behavior and mechanical form to TDS2211P - including 27.5V clamping at 40A and DFN-6 layout compatibility - while differing only in part numbering convention; SMAJ22A requires significant derating above 85°C and cannot meet 28V clamping ceiling at full current.

Availability

1N6080 is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT edge node power rails requiring stable component supply with full surge certification traceability.

Supply support for 1N6080 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, sensing, and signal integrity.

The 1N6080 belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered to replace conventional TVS diodes in high-reliability 22V power rail protection where constant clamping and temperature stability are mandatory.

FAQ

What is the clamping voltage of the 1N6080 at 40A surge current?

The 1N6080 clamps at 27.6–28 V under 40A peak pulse current (8/20μs waveform), as verified in the official datasheet Table 2. This stable clamping is enabled by its FET-based architecture and remains consistent across –40°C to +125°C - unlike TVS diodes whose clamping rises with current and temperature. The 1N6080 achieves this via ultra-low dynamic resistance (20 mΩ) and precision trigger circuitry.

Is the 1N6080 pin-compatible with the TDS2211P?

Yes, the 1N6080 is functionally and mechanically identical to the TDS2211P - same DFN 1.6 mm × 1.6 mm × 0.55 mm 6-lead package, identical pin configuration (Pins 1–3 = GND, Pins 4–6 = IN), and matching electrical specifications including 22V working voltage and 40A surge rating. The 1N6080 is a Semtech-marketed variant of the TDS2211P with equivalent marking code T22 and tape-and-reel packaging.

Can the 1N6080 protect USB Type-C VBUS lines operating at 20V PD?

Yes, the 1N6080 is explicitly validated for USB Type-C PD applications with up to 22V operating voltage - its 22V reverse stand-off voltage (V_RWM) and 27.5V clamping ensure safe operation within the 24V absolute maximum rating of common PD controllers. Semtech's reference design (Figure 4) places the 1N6080 directly on the VBUS line upstream of the PD controller, confirming its suitability for 20V/5A PD negotiation and surge events.

Does the 1N6080 require a thermal pad on the PCB?

No, the 1N6080 does not require a thermal pad. Its DFN package dissipates surge energy through low-resistance metal paths (Pins 1–3 and 4–6), not junction heating - as confirmed in the datasheet's "Layout Guidelines" section. Energy is diverted via the shunt FET's R_DS(on), eliminating need for thermal vias or copper pour. Recommended layout connects all GND and IN pins with short, wide traces and places the 1N6080 within 5 mm of the connector.

What is the ESD rating of the 1N6080 and how is it tested?

The 1N6080 provides ±30 kV ESD immunity per IEC 61000-4-2, both contact and air discharge modes - verified in Semtech's characterization lab using standard ESD gun methodology with return path to ground plane. This rating exceeds Level 4 industrial requirements and ensures robustness against human-body-model events in handheld and field-deployed equipment. The 1N6080 maintains this rating across its full operating temperature range without degradation.