Vishay General Semiconductor - Diodes Division SMF6V0A-E3-08

Overview

SMF6V0A-E3-08 from Vishay Semiconductors is a unidirectional surface-mount ESD protection diode in the SMF (DO-219AB) package, designed for low-capacitance transient suppression in high-speed data lines. It features a 6.0 V stand-off voltage (VRWM), 10.3 V maximum clamping voltage at 19.4 A peak pulse current, ±30 kV IEC 61000-4-2 ESD immunity, and 1063 pF typical junction capacitance at 0 V - optimized for USB 2.0, HDMI, and industrial sensor interfaces.

For engineers reviewing the SMF6V0A-E3-08 datasheet, SMF6V0A-E3-08 pinout, SMF6V0A-E3-08 application, or SMF6V0A-E3-08 equivalent, key selection criteria include clamping voltage under 10.3 V at 19.4 A, reverse leakage <26 µA at 6 V, thermal resistance of 180 K/W on standard PCB, and compatibility with SOD-123W footprint and reflow soldering profiles up to 260 °C.

Technical Context

This device operates as a single-channel unidirectional TVS diode, leveraging silicon avalanche breakdown to clamp transients while maintaining low dynamic impedance. Its "Low Noise" technology ensures sub-nanosecond response time, critical for protecting high-bandwidth analog and digital signal paths against ESD and lightning-induced surges.

The SMF6V0A-E3-08 is rated for 200 W peak pulse power (10/1000 µs waveform) and 1000 W (8/20 µs per IEC 61000-4-5), with a junction temperature range of −65 °C to +175 °C and AEC-Q101 qualification available in variant SMF6V0A-HE3_A08 - though the -E3-08 version is RoHS-compliant and lead-free with tin terminations.

Key Specifications

Pinout & Package

SMF6V0A-E3-08 uses the DO-219AB (SMF) package: low-profile (1.08 mm height), molded epoxy case with cathode band marking, compatible with SOD-123W footprint and automated placement. Dimensions: 3.9 mm × 1.9 mm × 1.08 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMAJ6.0A and TPD2E001DRYR, the SMF6V0A-E3-08 delivers optimal balance of clamping performance (10.3 V), footprint compactness (DO-219AB), and ESD-specific response for cost-sensitive industrial and consumer interfaces - neither a direct replacement nor functionally identical, but a purpose-fit solution for 6 V stand-off, single-line protection.

Availability

SMF6V0A-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal conditioning, and industrial sensor I/O requiring stable component supply across production lifecycles.

Supply support for SMF6V0A-E3-08 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 circuit protection components with emphasis on reliability and precision.

The SMF series targets high-reliability ESD protection for high-speed data and industrial control interfaces, engineered for low clamping, fast response, and robust thermal performance in compact surface-mount packages.

FAQ

What is the maximum clamping voltage of the SMF6V0A-E3-08 under surge conditions?

The SMF6V0A-E3-08 has a maximum reverse clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current of 19.4 A (10/1000 µs waveform). This value is measured per IEC 61000-4-5 test conditions and ensures downstream ICs see limited overvoltage during transient events. The SMF6V0A-E3-08 maintains this clamping performance across its full operating temperature range of −65 °C to +175 °C.

Is the SMF6V0A-E3-08 suitable for automotive applications?

The SMF6V0A-E3-08 itself is not AEC-Q101 qualified, but Vishay offers the functionally identical SMF6V0A-HE3_A08 variant with full AEC-Q101 qualification. Both share identical electrical characteristics including 6.0 V VRWM, 10.3 V VC, and ±30 kV ESD rating. For automotive designs requiring qualification evidence, SMF6V0A-HE3_A08 is the designated part; SMF6V0A-E3-08 serves industrial and consumer applications where AEC-Q101 is not mandated.

What is the junction capacitance of the SMF6V0A-E3-08 and how does it affect high-speed signals?

The SMF6V0A-E3-08 exhibits 1063 pF typical junction capacitance at 0 V and 1 MHz. This value directly impacts signal integrity on high-speed lines: it limits usable bandwidth and may attenuate fast edges. For USB 2.0 (480 Mbps), this capacitance remains within acceptable limits, but it is too high for USB 3.0 or HDMI 2.0. Engineers must verify eye diagram margins in their specific layout when using the SMF6V0A-E3-08 on data lines.

Does the SMF6V0A-E3-08 require special PCB layout considerations?

Yes - to preserve ESD performance, the SMF6V0A-E3-08 must be placed as close as possible to the protected connector or IC pin, with short, low-inductance traces to ground. Vishay recommends a 3 mm × 3 mm copper pour for the cathode pad to minimize thermal resistance (RthJA = 180 K/W). Avoid routing sensitive signals under or adjacent to the device body, and ensure the cathode connection goes directly to a solid ground plane without vias or narrow traces that increase inductance during clamping.

What packaging and soldering specifications apply to the SMF6V0A-E3-08?

The SMF6V0A-E3-08 ships in 3K per 7″ reel (8 mm tape) with MOQ = 30K units, and is rated for wave and reflow soldering per J-STD-020 MSL level 1. Peak reflow temperature is 260 °C max, compatible with standard lead-free profiles. The DO-219AB package has a recommended footprint of 2.9 mm × 1.4 mm pad length/width, with 1.3 mm solder mask opening per side - details are provided in Vishay document S8-V-3915.01-001.