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Vishay General Semiconductor - Diodes Division SMBG58A-M3/5B
- Part No.:
- SMBG58A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG58A-M3/5B.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG58A-M3/5B 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 (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 93.6 V maximum clamping voltage (VC) 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-M3/5B datasheet, SMBG58A-M3/5B pinout, SMBG58A-M3/5B application, or SMBG58A-M3/5B equivalent, key selection criteria include clamping performance under 600 W surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and halogen-free RoHS compliance per M3 suffix.
Technical Context
This TVS diode operates as a shunt-clamping device that remains high-impedance below VWM = 58 V and rapidly transitions to low-impedance conduction above VBR (min 64.4 V), limiting transient voltages to ≤93.6 V at 6.4 A. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at VWM).
Thermal design relies on RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets J-STD-020 MSL Level 1 and withstands 100 A non-repetitive forward surge (8.3 ms half-sine) - critical for load-dump immunity in 12 V/24 V vehicle systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT = 1 mA | 64.4–71.2 V - Confirmed breakdown range ensuring reliable turn-on during transients |
| VC @ IPPM = 6.4 A | 93.6 V - Clamped voltage during 600 W surge; defines protected circuit's max stress level |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform at 0.01% duty cycle |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms), essential for automotive load-dump survival |
| Junction Temp Range | –55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
| Leakage @ VWM | ≤1.0 μA - Minimal standby power loss and signal integrity impact in always-on circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing lead frame with matte tin-plated terminals solderable per J-STD-002. Cathode identified by molded band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line ground or low-side return path in unidirectional configuration |
| Cathode | Current exit point during clamping | Marked with band; ties to protected IC/power rail - absorbs positive transients when anode is grounded |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Halogen-free & RoHS compliant (M3) | Meets environmental compliance mandates for Tier-1 automotive and industrial OEMs without compromising surge robustness |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) up to 120 V on 12 V systems with margin |
| Fast response time & low Rsurge | Sub-nanosecond turn-on and minimal dynamic impedance ensure tight clamping during fast-rising EFT/burst events |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking or special handling |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting ECUs and body control modules from ISO 7637-2 load dump and jump-start surges on 12 V/24 V battery rails. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between power rail and chassis ground to divert >100 A transients away from downstream regulators and microcontrollers. Use Value: Limits rail voltage to ≤93.6 V during 600 W surges, preventing latch-up or permanent damage to 5 V/3.3 V logic supplies. | Use Scenario: Safeguarding analog front-ends of pressure, temperature, and position sensors connected to long harnesses in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS on signal lines referenced to local ground, suppressing inductive switching noise from solenoids and motors. Use Value: Clamps fast transients (tr < 1 ns) to <100 V while adding <1 pF capacitance - preserving signal fidelity in 10 kHz–1 MHz sensor bandwidths. |
| Telecom DC Power Input | Consumer Power Adapter Output |
Use Scenario: Secondary-side overvoltage protection on 48 V PoE-powered equipment inputs subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output filter to clamp residual transients escaping primary-side protection. Use Value: Withstands repetitive 10/1000 μs surges up to 600 W without degradation, meeting IEC 61000-4-5 Level 3 requirements. | Use Scenario: Output rail protection in wall-mounted AC/DC adapters for smart home devices exposed to mains-borne transients. IC Role / Device Role / Timing Role: Final-stage TVS on regulated 5 V/12 V outputs, guarding USB ports and MCU I/O against user-insertion spikes and ESD coupling. Use Value: Halogen-free M3 construction supports global regulatory compliance; 1 μA leakage avoids battery drain in always-connected IoT endpoints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG58A-E3/5B | Same electrical specs and SMBG package; RoHS-compliant but not halogen-free (E3 vs M3) | Preferred for industrial non-automotive designs where halogen content is unrestricted | Select E3 for cost-sensitive non-automotive production; retain M3 for AEC-Q101 or halogen-free mandates |
| SMBJ58A-M3/5B | Same VWM/VC, but SMBJ package (DO-214AB) has higher thermal resistance (RθJA = 110 °C/W vs 100 °C/W) and lower IFSM (75 A vs 100 A) | Limited suitability for automotive load-dump due to lower surge current rating and reduced thermal margin | Use SMBJ58A-M3/5B only where board space allows larger SMBJ footprint and surge demands are ≤75 A |
Compared with SMBG58A-M3/5B, the E3 variant offers identical protection performance without halogen restrictions, while SMBJ58A-M3/5B trades compact SMBG size and 100 A surge capability for slightly larger footprint and reduced ruggedness - making SMBG58A-M3/5B optimal for space-constrained, high-reliability automotive nodes.
Availability
SMBG58A-M3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power input stages requiring stable component supply with AEC-Q101 qualification and halogen-free compliance.
Supply support for SMBG58A-M3/5B 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 and application-specific performance.
The SMBG series is engineered for high-power transient suppression in automotive and industrial environments, delivering AEC-Q101-qualified robustness in the compact DO-215AA package for space-critical PCB layouts.
FAQ
What is the clamping voltage of SMBG58A-M3/5B at its rated peak pulse current?
The SMBG58A-M3/5B has a maximum clamping voltage (VC) of 93.6 V at 6.4 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during surge events and is measured per ANSI/IEEE C62.35 standards. The SMBG58A-M3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG58A-M3/5B suitable for automotive applications?
Yes, SMBG58A-M3/5B is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its 100 A IFSM rating supports ISO 7637-2 Pulse 5a load-dump immunity, and its M3 suffix confirms halogen-free, RoHS-compliant construction required by Tier-1 suppliers. The SMBG58A-M3/5B meets MSL Level 1 for lead-free reflow compatibility.
How does the SMBG58A-M3/5B differ from the SMBG58CA-M3/5B?
The SMBG58A-M3/5B is unidirectional, with polarity marked by a cathode band and intended for DC line protection where transients are predominantly positive-going. In contrast, SMBG58CA-M3/5B is bidirectional, offering symmetric clamping for AC-coupled or floating signal lines. Their VBR, VC, and PPPM ratings are identical, but SMBG58A-M3/5B supports 100 A IFSM while SMBG58CA-M3/5B does not specify forward surge rating.
What is the thermal resistance of SMBG58A-M3/5B, and how does it affect layout?
The SMBG58A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on 0.2" × 0.2" copper pads. To maintain safe operation at full 600 W pulse power, PCB layout must provide adequate copper area and minimize trace length to leads. The SMBG58A-M3/5B's low RθJL enables effective heat transfer to the board through its gull-wing terminals.
Does SMBG58A-M3/5B require derating at elevated ambient temperatures?
Yes, SMBG58A-M3/5B must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet (Doc. #88456). At 85 °C ambient, its peak pulse power drops to approximately 420 W (70% of 600 W), and at 125 °C, it falls to ~240 W (40%). Derating ensures junction temperature stays within the –55 °C to +150 °C limit. Designers must apply this curve when sizing SMBG58A-M3/5B for under-hood or enclosed industrial environments.
SMBG58A-M3/5B 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:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG58A-M3/5B FAQ
1.How can I place an order for SMBG58A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG58A-M3/5B 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-M3/5B reliable?
The price and inventory of SMBG58A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG58A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG58A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG58A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG58A-M3/5B?
SMBG58A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG58A-M3/5B 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-M3/5B?
For technical support, including SMBG58A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG58A-M3/5B requirements.
6.How does Aetrix verify that SMBG58A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG58A-M3/5B 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-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG58A-M3/5B?
All SMBG58A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG58A-M3/5B, 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-M3/5B part is unused and in its original packaging.
Return procedure for SMBG58A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG58A-M3/5B Tags
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Diodes Incorporated
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Diodes Incorporated
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