Semtech Corporation JANTX1N6170

Overview

JANTX1N6170 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 20mΩ dynamic resistance - deployed in USB PD, USB Type-C, and industrial load-switch input protection.

For engineers reviewing the JANTX1N6170 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world clamping stability across temperature and current, and direct alternative comparisons for robust overvoltage protection design.

Technical Context

The JANTX1N6170 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 due to decreasing R_DS(on) under surge conditions.

It operates across –40°C to +125°C with stable 27.5–28V clamping at both 24A and 40A (1.2/50μs + 8/20μs combination waveform, R_S = 2Ω), and maintains <600nA reverse leakage at 22V while offering 175pF junction capacitance at 22V/1MHz - critical for high-speed bus integrity.

Key Specifications

Pinout & Package

Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, RoHS-compliant, UL 94V-0 molding compound, lead-free finish, tape-and-reel (3,000 pcs/reel).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TDS2211P.C and SMAJ22A, JANTX1N6170 delivers military-grade reliability with unchanged electrical performance, enabling drop-in use in harsh environments where thermal stability and surge margin are non-negotiable.

Availability

JANTX1N6170 is available at Aetrix Electronics and suitable for USB Type-C PD systems, industrial load-switch interfaces, and ruggedized IoT power buses requiring stable component supply, long-term obsolescence management, and traceable sourcing.

Supply support for JANTX1N6170 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 semiconductor company specializing in analog and mixed-signal ICs for precision protection, sensing, and connectivity - serving industrial, communications, and consumer markets since 1960.

JANTX1N6170 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy, temperature-variable EOS protection applications where clamping stability is critical.

FAQ

What is the maximum operating temperature range for JANTX1N6170?

JANTX1N6170 is rated for continuous operation from –55°C to +150°C (junction/storage) and –40°C to +125°C (operating ambient). Its clamping voltage remains stable across this full range - unlike standard TVS devices whose V_C increases with temperature. This makes JANTX1N6170 especially suitable for under-hood automotive modules and industrial control cabinets where thermal cycling is severe. The JANTX screening ensures consistent performance under military-grade environmental stress.

Does JANTX1N6170 require a thermal pad on the PCB?

No, JANTX1N6170 does not require a thermal pad. Its energy dissipation occurs primarily through low-R_DS(on) conduction rather than junction heating, and the datasheet explicitly states "no thermal pad is needed." Instead, design focus should be on low-inductance grounding: connect all three GND pins (1, 2, 3) directly to a solid ground plane using multiple vias, and place JANTX1N6170 within 5mm of the protected connector to minimize parasitic inductance - critical for ESD response speed.

Can JANTX1N6170 protect USB 3.2 SuperSpeed differential pairs?

No, JANTX1N6170 is not suitable for USB 3.2 SuperSpeed (5–10Gbps) differential lanes. Its 175pF junction capacitance would severely degrade signal integrity on high-speed lines. It is intended for USB PD power lines, CC/SBU, and DP/DM (at USB 2.0 speeds). For SuperSpeed protection, Semtech recommends ultra-low-capacitance devices like RClamp3371ZC (<0.25pF). JANTX1N6170's role is strictly power-rail and low-speed I/O protection - never high-frequency data paths.

How does JANTX1N6170 differ from standard TVS diodes in surge response?

JANTX1N6170 uses an active FET-based architecture with a precision trigger circuit, whereas standard TVS diodes rely on passive PN-junction avalanche. This gives JANTX1N6170 near-constant clamping voltage (27.5–28V) from 1A to 40A and across –40°C to +125°C - versus TVS devices whose V_C rises linearly with current and temperature. That stability prevents downstream IC damage during worst-case surge + high-ambient scenarios, a key advantage confirmed in Semtech's Figure 3 clamping comparison.

Is JANTX1N6170 pin-compatible with other Semtech TDS devices?

JANTX1N6170 shares the same DFN-6 package and pin configuration (pins 1–3 = GND, pins 4–6 = IN) with TDS2211P.C and TDS2411P, but is not electrically interchangeable without validation. While mechanical fit is identical, JANTX1N6170 undergoes additional military screening (MIL-PRF-19500) and may exhibit tighter parameter distributions. Always verify V_RWM, V_BR, and clamping behavior in final design - JANTX1N6170 is not a generic drop-in replacement for commercial TDS variants unless explicitly qualified.