Vishay General Semiconductor - Diodes Division SMBJ130AHE3_A/H

Overview

SMBJ130AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 130 V stand-off voltage (VWM), 144–159 V breakdown voltage (VBR) at 1 mA, 209 V maximum clamping voltage (VC) at 2.9 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform), used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.

For engineers reviewing the SMBJ130AHE3_A/H datasheet, SMBJ130AHE3_A/H pinout, SMBJ130AHE3_A/H application, or SMBJ130AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compliance with UL 497B surge protector classification.

Technical Context

This TVS diode operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM), while low incremental surge resistance enables rapid energy absorption during ESD or lightning-induced surges.

The SMBJ130AHE3_A/H is rated for 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with derating above 25 °C per Fig. 2. It meets MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak temperature.

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking; anode is unmarked end.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ130AHE3_A/H, the SMBJ130A-E3/52 offers identical clamping behavior without automotive qualification, while the SMCJ130AHE3_A/H delivers greater surge headroom and lower thermal resistance at the expense of board space - enabling trade-offs between reliability, footprint, and qualification requirements.

Availability

SMBJ130AHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and consumer appliance control boards requiring stable component supply and AEC-Q101 compliance.

Supply support for SMBJ130AHE3_A/H 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, MOSFETs, and protection devices with emphasis on reliability and application-specific validation.

The SMBJ series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where consistent clamping, low leakage, and qualification-grade consistency are critical.

FAQ

What is the maximum clamping voltage of SMBJ130AHE3_A/H at its rated peak pulse current?

The SMBJ130AHE3_A/H has a maximum clamping voltage (VC) of 209 V at its rated peak pulse current (IPPM) of 2.9 A under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The SMBJ130AHE3_A/H maintains this clamping performance across its full operating temperature range.

Is SMBJ130AHE3_A/H qualified for automotive applications?

Yes, SMBJ130AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in the SMBJ5.0A–SMBJ188A datasheet (Rev. 09-Jan-2024, Doc. #88392). This qualification validates its reliability for automotive use cases including body electronics, infotainment power rails, and sensor interface protection under extended temperature and lifetime stress conditions.

What is the reverse leakage current specification for SMBJ130AHE3_A/H at its stand-off voltage?

The SMBJ130AHE3_A/H exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 130 V stand-off voltage (VWM), tested at TA = 25 °C. This low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits such as microcontroller reset lines or analog sensor inputs. The SMBJ130AHE3_A/H maintains this spec across its full operating temperature range.

Does SMBJ130AHE3_A/H have a bidirectional variant?

No - SMBJ130AHE3_A/H is strictly unidirectional, indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay offers the SMBJ130CA series (e.g., SMBJ130CAHE3_A/H), which provides symmetrical clamping in both polarities and uses a different marking scheme with no polarity band. The SMBJ130AHE3_A/H must be oriented correctly in-circuit to ensure proper clamping function.

What is the thermal resistance from junction to ambient for SMBJ130AHE3_A/H?

The SMBJ130AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value guides PCB layout decisions for thermal management in high-duty-cycle surge environments. The SMBJ130AHE3_A/H also features RθJL = 20 °C/W for localized heat transfer to PCB traces or heatsinks.