Semtech Corporation JANTXV1N6467

Overview

JANTXV1N6467 from Microsemi (now Microchip) is a military-grade transient voltage suppression diode designed for high-reliability EOS/ESD protection of 22V DC power and signal lines. It features ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping at 40A, 20mΩ dynamic resistance, and 175pF junction capacitance - enabling robust protection in USB PD, industrial IoT, and load-switch input circuits.

For engineers reviewing the JANTXV1N6467 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping stability across temperature (−40°C to +125°C), low dynamic resistance for minimal voltage overshoot, DFN-6 package footprint compatibility, and compliance with MIL-PRF-19500/563 requirements for space-qualified surge suppression.

Technical Context

JANTXV1N6467 implements a transient diverting architecture using a precision-triggered shunt FET rather than a conventional PN-junction TVS. Its trigger circuit activates the low-R_DS(on) FET when voltage exceeds ~25V breakdown, delivering near-constant clamping independent of pulse amplitude or ambient temperature.

This architecture enables stable 27.5–28V clamping from 24A to 40A (1.2/50μs + 8/20μs combo wave) and maintains performance from −40°C to +125°C - unlike standard TVS diodes whose clamping rises linearly with current and temperature due to fixed dynamic resistance.

Key Specifications

Pinout & Package

Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), RoHS-compliant, Pb-free, UL 94V-0 molding compound. Exposed thermal pad not required - energy dissipated via silicon FET channel.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TDS2211P and SMAJ22A, JANTXV1N6467 delivers military-grade reliability, tighter clamping stability over temperature, and superior surge handling in a miniature footprint - making it optimal for aerospace, defense, and high-assurance industrial deployments where failure is not an option.

Availability

JANTXV1N6467 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 across extended temperature and long product lifecycles.

Supply support for JANTXV1N6467 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

Microsemi (acquired by Microchip Technology in 2018) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs for aerospace, defense, and industrial markets.

JANTXV1N6467 belongs to Microsemi's JAN/JANTX-series transient suppressors - engineered for mission-critical applications demanding MIL-PRF-19500 screening, radiation tolerance, and guaranteed performance across extreme environmental conditions.

FAQ

What is the primary circuit role of JANTXV1N6467 in a USB Type-C PD system?

JANTXV1N6467 serves as the front-line transient diverting suppressor on the V_Bus line, clamping lightning-induced surges and ESD events before they reach the USB PD controller and load switch. Its 27.5–28V clamping at 40A ensures the protected ICs remain within their absolute maximum ratings, even at elevated temperatures. JANTXV1N6467 achieves this via a triggered shunt-FET architecture - not a conventional TVS diode - giving it superior stability over current and temperature compared to alternatives.

Does JANTXV1N6467 require a thermal pad or heatsink for 40A surge handling?

No, JANTXV1N6467 does not require a thermal pad or external heatsink. Its transient diverting architecture dissipates surge energy through the low-R_DS(on) FET channel rather than a PN junction, eliminating localized heating hotspots. The DFN-6 package relies on PCB copper pour and multiple vias to ground for effective heat spreading during short-duration (≤20μs) pulses. Layout guidelines specify connecting all three GND pins and routing the IN pins with minimal trace inductance - not thermal mass - to maximize performance.

How does JANTXV1N6467 differ from standard TVS diodes like SMAJ22A in clamping behavior?

JANTXV1N6467 uses a precision-triggered shunt FET, resulting in nearly constant clamping voltage (27.5–28V) from 24A to 40A and across −40°C to +125°C. In contrast, SMAJ22A - a standard unidirectional TVS - exhibits rising clamping (to ~42V at 40A) due to fixed dynamic resistance (~150 mΩ) and significant temperature dependence. This makes JANTXV1N6467 more predictable in high-temperature or high-current surge scenarios, especially in safety-critical industrial and aerospace systems.

Can JANTXV1N6467 be used to protect high-speed data lines such as USB SuperSpeed differential pairs?

No, JANTXV1N6467 is not suitable for USB SuperSpeed (5–10 Gbps), PCIe, or HDMI data lines. Its 175pF junction capacitance would severely degrade signal integrity on those interfaces. It is intended for DC power rails (e.g., V_Bus, load switch inputs) and lower-speed control lines (e.g., USB-C CC, SBU). For high-speed data lines, Semtech recommends low-capacitance devices like RClamp3371ZC (<0.25pF), which are specifically designed to avoid signal distortion while providing ESD protection.

What packaging and marking information is associated with JANTXV1N6467?

JANTXV1N6467 is supplied in tape-and-reel format (3,000 units per 7-inch reel) in a DFN-6 package measuring 1.6 mm × 1.6 mm × 0.55 mm. Marking consists of "T22" followed by a two-digit date code (e.g., T2223), with a laser dot indicating Pin 1 location. The device is Pb-free, halogen-free, RoHS/WEEE compliant, and carries UL 94V-0 flammability rating - consistent with Microsemi's high-reliability component standards.