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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division SMBG58A-E3/52

Name: SMBG58A-E3/52
Brand: Vishay General Semiconductor - Diodes Division
SKU: SMBG58A-E3/52
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SMBG58A-E3/52

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-215AA, SMB Gull Wing

Datasheet:: SMBG58A-E3/52.pdf

Description:: TVS DIODE 58VWM 93.6VC DO215AA

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Product details

Overview

SMBG58A-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 58 V stand-off voltage (V_WM), 64.4–71.2 V breakdown voltage (V_BR) at 1 mA, 93.6 V clamping voltage (V_C) at 6.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power line and industrial sensor interface protection.

For engineers reviewing the SMBG58A-E3/52 datasheet, SMBG58A-E3/52 pinout, SMBG58A-E3/52 application, or SMBG58A-E3/52 equivalent, key selection criteria include clamping performance under 600 W surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.

Technical Context

This TVS diode operates as a fast-acting shunt protector, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its unidirectional configuration enables integration into DC power rails where reverse conduction must be blocked, while maintaining stable clamping during repetitive transients up to 0.01% duty cycle.

The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation under high ambient conditions when mounted per recommended 0.2" × 0.2" copper pad layout.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	58 V - maximum continuous reverse working voltage before clamping initiates; defines safe DC operating margin.
V_BR (min/max)	64.4 V / 71.2 V at 1 mA - precise breakdown threshold ensuring predictable turn-on during transients.
V_C @ I_PPM	93.6 V at 6.4 A - clamping voltage limits downstream IC stress during 600 W surge events.
P_PPM	600 W - peak pulse power handling with 10/1000 μs waveform supports IEC 61000-4-5 Level 4 compliance.
I_FSM	100 A - non-repetitive forward surge rating (8.3 ms half-sine) validates robustness against load dump events.
T_J max	+150 °C - extended junction temperature rating enables deployment in under-hood automotive environments.
AEC-Q101	Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing.

Pinout & Package

Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and MSL level 1 (260 °C peak reflow).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal	Connected to system ground or low-side return path in unidirectional protection topology.
Cathode	Reverse-biased clamping terminal	Marked with band; connects to protected line (e.g., 12 V rail) to clamp positive transients to ground.

Key Features

Feature	Design Value
Glass passivated chip junction	Ensures stable V_BR tolerance and long-term reliability under thermal cycling and humidity exposure.
600 W peak pulse power (10/1000 μs)	Supports protection against severe ISO 7637-2 pulse 5a/b and IEC 61000-4-5 surges without degradation.
AEC-Q101 qualification	Validates suitability for automotive powertrain and body electronics requiring zero-failure field performance.
Low profile SMBG package	Enables high-density PCB layouts and compatibility with standard pick-and-place equipment for automated manufacturing.
Matte tin plated leads	Guarantees solderability and whisker resistance per JESD 201 Class 2, critical for industrial and automotive longevity.

Applications

Automotive Power Line Protection	Industrial Sensor Interface
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS diode clamping positive voltage spikes to ground before they reach downstream regulators and microcontrollers. Use Value: Limits transient voltage to ≤93.6 V, preventing damage to 3.3 V/5 V logic interfaces and meeting ISO 16750-2 requirements.	Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between sensor signal line and ground to suppress ESD and inductive switching noise. Use Value: Sub-ns response and 1.0 μA leakage at 58 V preserve signal integrity and measurement accuracy in precision 4–20 mA loops.
Telecom DC Power Input	Consumer Device USB Power Rail
Use Scenario: Securing primary DC input of telecom base station power supplies against lightning-induced surges. IC Role / Device Role / Timing Role: First-line overvoltage protector on 48 V input stage, coordinated with upstream fuses and downstream MOVs. Use Value: 600 W rating and 100 A I_FSM enable coordination with 100 ms fault-clearing timeframes without thermal runaway.	Use Scenario: Adding secondary surge immunity to USB-C PD input circuits in portable monitors and docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after input fuse and before buck converter to absorb fast-rising ESD and hot-swap transients. Use Value: 58 V V_WM allows seamless integration with 20 V PD3.1 inputs while clamping to <94 V to protect 24 V-rated controllers.

Automotive Power Line Protection

Industrial Sensor Interface

Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients.

IC Role / Device Role / Timing Role: Shunt TVS diode clamping positive voltage spikes to ground before they reach downstream regulators and microcontrollers.

Use Value: Limits transient voltage to ≤93.6 V, preventing damage to 3.3 V/5 V logic interfaces and meeting ISO 16750-2 requirements.

Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules.

IC Role / Device Role / Timing Role: Unidirectional clamping element placed between sensor signal line and ground to suppress ESD and inductive switching noise.

Use Value: Sub-ns response and 1.0 μA leakage at 58 V preserve signal integrity and measurement accuracy in precision 4–20 mA loops.

Telecom DC Power Input

Consumer Device USB Power Rail

Use Scenario: Securing primary DC input of telecom base station power supplies against lightning-induced surges.

IC Role / Device Role / Timing Role: First-line overvoltage protector on 48 V input stage, coordinated with upstream fuses and downstream MOVs.

Use Value: 600 W rating and 100 A I_FSM enable coordination with 100 ms fault-clearing timeframes without thermal runaway.

Use Scenario: Adding secondary surge immunity to USB-C PD input circuits in portable monitors and docking stations.

IC Role / Device Role / Timing Role: Standoff-rated TVS placed after input fuse and before buck converter to absorb fast-rising ESD and hot-swap transients.

Use Value: 58 V V_WM allows seamless integration with 20 V PD3.1 inputs while clamping to <94 V to protect 24 V-rated controllers.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ58A-E3/52	Same V_WM (58 V), but lower P_PPM = 600 W (same), higher V_C = 93.6 V (identical), identical SMB package and AEC-Q101 qualification.	No functional difference; SMBJ series uses DO-214AA package (slightly larger footprint than SMBG's DO-215AA).	Select SMBG58A-E3/52 for space-constrained designs requiring DO-215AA's smaller outline and tighter thermal resistance (R_θJL = 20 °C/W).
SMCJ58A-E3/52	Same V_WM and V_C, but higher P_PPM = 1500 W and larger SMC (DO-214AB) package; R_θJA = 35 °C/W vs. 100 °C/W.	Used where higher single-pulse energy absorption is required, e.g., front-end AC/DC rectifier protection.	Choose SMBG58A-E3/52 instead when board area is limited and 600 W suffices - avoids unnecessary cost and size penalty of SMC package.

Compared with SMBJ58A-E3/52 and SMCJ58A-E3/52, SMBG58A-E3/52 delivers identical electrical protection performance in a smaller DO-215AA footprint with superior lead-to-junction thermal transfer, making it optimal for dense automotive and industrial PCBs where layout real estate and thermal management are critical.

Availability

SMBG58A-E3/52 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across production lifecycles.

Supply support for SMBG58A-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.

The SMBG series was engineered for high-reliability surface-mount transient suppression in space-constrained, thermally demanding environments - particularly targeting AEC-Q101-compliant automotive and industrial control systems.

FAQ

What is the clamping voltage of SMBG58A-E3/52 and how is it measured?

The SMBG58A-E3/52 has a maximum clamping voltage (V_C) of 93.6 V, measured at a peak pulse current (I_PPM) of 6.4 A using a 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88456, Rev. 09-Jan-2024) and reflects the voltage seen by downstream circuitry during worst-case surge events - critical for validating safe operating margins of protected ICs.

Is SMBG58A-E3/52 suitable for automotive applications?

Yes, SMBG58A-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its -55 °C to +150 °C operating junction temperature range, glass-passivated junction, and 100 A I_FSM rating make it appropriate for protecting engine control units, body control modules, and ADAS sensor power rails - all confirmed in Vishay's official qualification report referenced in the SMBG datasheet.

What does the "E3/52" suffix mean in SMBG58A-E3/52?

The "E3" denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "/52" specifies packaging in 7" diameter plastic tape and reel with a base quantity of 750 units. This ordering code aligns with Vishay's standardized nomenclature in Document Number 88456 and ensures compatibility with automated SMT assembly lines using standard feeder configurations.

How does SMBG58A-E3/52 differ from bidirectional TVS diodes like SMBG58CA?

SMBG58A-E3/52 is unidirectional and features a cathode band marking, allowing it to block reverse current while clamping positive transients - ideal for DC power rails. In contrast, SMBG58CA is bidirectional, symmetric in both directions, and lacks polarity marking; it is used in AC-coupled or floating signal lines. Their V_BR and V_C values differ accordingly, as confirmed in the same Vishay datasheet table.

What is the thermal resistance of SMBG58A-E3/52 and why does it matter?

SMBG58A-E3/52 has a typical junction-to-ambient thermal resistance (R_θJA) of 100 °C/W and junction-to-lead (R_θJL) of 20 °C/W when mounted on 0.2" × 0.2" copper pads. These values directly impact sustained surge handling and long-term reliability: lower R_θJL enables faster heat dissipation into PCB copper, reducing thermal stress during repetitive transients - a key advantage of the SMBG (DO-215AA) package over alternatives.

SMBG58A-E3/52 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-215AA, SMB Gull Wing

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 58V

Voltage - Breakdown (Min):: 64.4V

Voltage - Clamping (Max) @ Ipp:: 93.6V

Current - Peak Pulse (10/1000µs):: 6.4A

Power - Peak Pulse:: 600W

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMBG)

SMBG58A-E3/52 FAQ

1.How can I place an order for SMBG58A-E3/52 through Aetrix?

Please submit a Request for Quotation (RFQ) for SMBG58A-E3/52 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SMBG58A-E3/52 reliable?

The price and inventory of SMBG58A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG58A-E3/52 is usually 5 days.

3.What payment methods are accepted for SMBG58A-E3/52?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG58A-E3/52 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMBG58A-E3/52?

SMBG58A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMBG58A-E3/52 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SMBG58A-E3/52?

For technical support, including SMBG58A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG58A-E3/52 requirements.

6.How does Aetrix verify that SMBG58A-E3/52 is sourced from the original manufacturer or authorized distributors?

All SMBG58A-E3/52 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBG58A-E3/52 meets industry standards.

7.What is the process for return or replacement of SMBG58A-E3/52?

All SMBG58A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG58A-E3/52, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SMBG58A-E3/52 part is unused and in its original packaging.

Return procedure for SMBG58A-E3/52:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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