Vishay General Semiconductor - Diodes Division SMF6V0A-M3-08

Overview

SMF6V0A-M3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for low-capacitance transient suppression on data lines. It features a 6 V stand-off voltage (VRWM), 10.3 V maximum clamping voltage at 19.4 A peak pulse current, 1063 pF typical capacitance at 0 V, ±30 kV IEC 61000-4-2 ESD immunity, and AEC-Q101 qualification for automotive use.

For engineers reviewing the SMF6V0A-M3-08 datasheet, SMF6V0A-M3-08 pinout, SMF6V0A-M3-08 application, or SMF6V0A-M3-08 equivalent, this device is selected for high-reliability I/O line protection where fast response time, low clamping voltage, and robust surge handling (200 W @ 10/1000 μs) are critical - especially in USB, HDMI, and automotive sensor interfaces.

Technical Context

This diode operates as a unidirectional TVS (transient voltage suppressor) with avalanche breakdown behavior, optimized for electrostatic discharge (ESD) and surge protection in signal paths. Its low incremental surge resistance ensures minimal voltage overshoot during transient events, while its "Low Noise" technology enables sub-nanosecond response to ESD pulses per IEC 61000-4-2.

The device is rated for continuous operation from −65 °C to +175 °C, supports wave and reflow soldering per J-STD-020 MSL level 1, and maintains stable clamping performance across its full operating temperature range due to silicon junction design and SOD-123W-compatible DO-219AB packaging.

Key Specifications

Pinout & Package

SMF6V0A-M3-08 uses the DO-219AB (SMF) package: low-profile (1.08 mm height), molded epoxy case with cathode bar marking, compatible with SOD-123W footprint. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm. RoHS-compliant, lead-free tin plating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection diode applications.

Compared with SMAJ6.0A-E3/57T and TPD2E001DRYR, SMF6V0A-M3-08 delivers optimal balance of compact DO-219AB size, automotive qualification, and precise 6 V standoff with 10.3 V clamping - making it preferred for space-limited, high-reliability signal-line protection where both ESD and surge immunity are required.

Availability

SMF6V0A-M3-08 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial fieldbus nodes, and high-speed consumer interface designs requiring stable component supply and long-term lifecycle support.

Supply support for SMF6V0A-M3-08 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

Vishay Semiconductors is a global leader in discrete semiconductors, specializing in power management, sensing, and protection devices with emphasis on reliability, precision, and automotive-grade validation.

The SMF series is part of Vishay's eSMP® family, engineered specifically for surface-mount ESD and surge protection in high-density, high-reliability applications - targeting automotive, industrial, and computing interfaces where low profile and AEC-Q101 compliance are mandatory.

FAQ

What is the clamping voltage of the SMF6V0A-M3-08 at its rated peak pulse current?

The SMF6V0A-M3-08 has a maximum clamping voltage (VC) of 10.3 V at its rated peak pulse current (IPPM) of 19.4 A under a 10/1000 μs waveform. This value is measured per standard test conditions and ensures predictable voltage limiting during surge events. The SMF6V0A-M3-08 maintains this clamping performance across its full −65 °C to +175 °C operating range.

Is the SMF6V0A-M3-08 qualified for automotive applications?

Yes, the SMF6V0A-M3-08 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and ESD per human body model (H3B > 8 kV). This qualification confirms its suitability for automotive subsystems such as body electronics, infotainment I/O, and sensor signal conditioning. The SMF6V0A-M3-08 meets all applicable AEC-Q101 requirements as documented in Vishay's certification reports.

What is the capacitance of the SMF6V0A-M3-08 and how does it affect high-speed signal lines?

The SMF6V0A-M3-08 exhibits 1063 pF typical capacitance at 0 V and 1 MHz. While higher than ultra-low-capacitance arrays, this value is appropriate for medium-speed interfaces like USB 2.0, LIN, and analog sensor outputs. It introduces minimal signal distortion on edges up to ~100 MHz. For the SMF6V0A-M3-08, capacitance is a deliberate trade-off enabling robust 200 W surge handling in a miniature DO-219AB package.

Does the SMF6V0A-M3-08 have polarity marking, and how is it oriented on the PCB?

Yes, the SMF6V0A-M3-08 features a cathode bar marking on the package body, aligned with Pin 2 (cathode). When mounted, the bar must face the ground or reference net side of the protected line. The DO-219AB footprint requires correct orientation per Vishay's tape carrier diagram (Document no. S8-V-3717.02-003), ensuring consistent unidirectional clamping behavior. Misorientation renders the SMF6V0A-M3-08 ineffective for reverse-polarity transients.

Can the SMF6V0A-M3-08 be used in reflow soldering processes?

Yes, the SMF6V0A-M3-08 is fully compatible with standard lead-free reflow soldering per J-STD-020, rated for peak temperatures up to 260 °C. Its MSL level 1 rating means it can be stored indefinitely at ≤30 °C/60% RH without baking. The SMF6V0A-M3-08's SOD-123W-compatible DO-219AB outline supports automated placement and yields high first-pass assembly yield in high-volume manufacturing.