Vishay General Semiconductor - Diodes Division SMBG130A-M3/52

Overview

SMBG130A-M3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 130 V standoff voltage (V_WM), 144–159 V breakdown voltage (V_BR), 600 W peak pulse power (10/1000 µs), 2.9 A maximum reverse leakage at V_WM, and clamps to 209 V at peak surge current - deployed in automotive power distribution and industrial sensor interfaces.

For engineers reviewing the SMBG130A-M3/52 datasheet, SMBG130A-M3/52 pinout, SMBG130A-M3/52 application, or SMBG130A-M3/52 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, DO-215AA package dimensions, clamping behavior under surge conditions, and direct alternatives with documented parameter divergence.

Technical Context

This TVS diode operates as a unidirectional shunt protector, leveraging an avalanche junction to clamp transients above its breakdown threshold while maintaining low leakage (<2.9 µA) below 130 V. Its glass-passivated chip ensures stable V_BR tolerance (±5 %) and repeatable clamping performance across temperature (–55 °C to +150 °C).

Designed for high-reliability environments, SMBG130A-M3/52 meets AEC-Q101 stress testing requirements and is halogen-free (M3 suffix), RoHS-compliant, and rated MSL Level 1 (260 °C reflow). It delivers 100 A non-repetitive forward surge capability (8.3 ms half-sine) and exhibits 20 Ω typical junction-to-lead thermal resistance for effective power dissipation during transient events.

Key Specifications

Pinout & Package

SMBG130A-M3/52 uses the SMBG (DO-215AA) surface-mount package: low-profile gull-wing leads, matte tin-plated terminals solderable per J-STD-002, and cathode indicated by a band on the body. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated 600 W pulse handling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBG130A-E3/52, SMBG130A-M3/52 adds halogen-free construction and AEC-Q101 validation; versus SMBJ130A-M3/52, it trades minor surge current margin for 15 % smaller footprint and identical clamping performance - making it optimal for automotive and compact industrial PCBs.

Availability

SMBG130A-M3/52 is available at Aetrix Electronics and suitable for automotive power systems, industrial sensor interfaces, telecom DC inputs, and motor drive protection requiring stable component supply across production lifecycles.

Supply support for SMBG130A-M3/52 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.

The SMBG series was engineered for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance and consistent clamping behavior.

FAQ

What is the clamping voltage of SMBG130A-M3/52 at its rated peak pulse current?

The SMBG130A-M3/52 clamps to a maximum of 209 V when subjected to its rated 600 W peak pulse power (10/1000 µs waveform). This value is measured at the peak pulse current (I_PPM) of 2.9 A and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping voltage is guaranteed per Vishay's datasheet revision 09-Jan-2024, Document Number 88456, and applies under standard test conditions with 0.2" × 0.2" copper pads.

Is SMBG130A-M3/52 suitable for automotive applications?

Yes, SMBG130A-M3/52 is AEC-Q101 qualified and explicitly rated for automotive use. Its qualification covers high-temperature operation (T_J up to +150 °C), thermal cycling, humidity testing, and mechanical shock - making it appropriate for engine control units, body electronics, and ADAS power rails. The M3 suffix confirms halogen-free construction required by many Tier 1 automotive specifications, and the device is listed in Vishay's AEC-Q101 qualified product portfolio.

What does the "M3" suffix indicate in SMBG130A-M3/52?

The "M3" suffix in SMBG130A-M3/52 denotes halogen-free, RoHS-compliant construction with industrial-grade reliability and JESD201 Class 2 whisker resistance. Unlike the "E3" variant, M3 devices meet stricter environmental standards for bromine and chlorine content and are also AEC-Q101 qualified - distinguishing them as automotive-capable. The "/52" indicates packaging in 7" diameter plastic tape and reel, with 750 units per reel.

How does SMBG130A-M3/52 differ from SMBG130CA-M3/52?

SMBG130A-M3/52 is unidirectional, with polarity marked by a cathode band and intended for DC line protection where current flows in one direction. SMBG130CA-M3/52 is bidirectional, lacking polarity marking and designed for AC or differential signal protection (e.g., RS-485, CAN bus). Their V_BR, V_C, and PPPM ratings are identical, but the CA version conducts in both directions and has symmetric breakdown characteristics - making them functionally non-interchangeable without circuit redesign.

What is the thermal resistance of SMBG130A-M3/52, and how does it affect layout?

SMBG130A-M3/52 has a typical junction-to-lead thermal resistance (R_θJL) of 20 °C/W and junction-to-ambient (R_θJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. To sustain repeated 600 W pulses, PCB layout must provide adequate copper area and thermal vias to minimize temperature rise. Reducing R_θJA via enhanced copper pour directly improves surge endurance and prevents thermal runaway during repetitive transients.