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Vishay General Semiconductor - Diodes Division SMBG58A-M3/52
- Part No.:
- SMBG58A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG58A-M3/52.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,103
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Product details
Overview
SMBG58A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, rated for 58 V stand-off voltage, 64.4–71.2 V breakdown at 1 mA, 93.6 V clamping voltage at 6.4 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform-designed to protect automotive-grade power rails and signal lines against ESD and load dump transients.
For engineers reviewing the SMBG58A-M3/52 datasheet, SMBG58A-M3/52 pinout, SMBG58A-M3/52 application, or SMBG58A-M3/52 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, junction temperature derating above 25 °C, IFSM surge capability for repetitive inductive switching events, and halogen-free compliance for automotive PCB assembly.
Technical Context
This TVS operates as a unidirectional avalanche clamp: reverse-biased during normal operation with ≤1.0 μA leakage at 58 V, then rapidly avalanches when transient voltage exceeds 64.4 V to limit downstream voltage to ≤93.6 V at 6.4 A. Its glass-passivated junction ensures stable breakdown and low dynamic impedance under surge conditions.
Designed for automated SMT placement on 5.0 mm × 5.0 mm copper pads per terminal, it meets AEC-Q101 qualification and J-STD-020 MSL Level 1 (260 °C peak reflow), supporting automotive under-hood and body-control module deployments where thermal reliability and solder-joint integrity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 58 V - Maximum continuous reverse operating voltage before clamping begins |
| Breakdown Voltage (VBR) | 64.4–71.2 V at 1 mA - Confirmed avalanche initiation range for reliable overvoltage detection |
| Clamping Voltage (VC) | 93.6 V at 6.4 A - Peak voltage seen by protected circuit during 10/1000 μs transient |
| Peak Pulse Power (PPPM) | 600 W - Sustained energy absorption capability without failure under standardized surge waveform |
| Peak Forward Surge Current (IFSM) | 100 A - Single half-sine 8.3 ms surge rating for unidirectional forward conduction during fault recovery |
| Junction Temperature Range | −55 °C to +150 °C - Validated operating envelope for engine bay and powertrain electronics |
| Package | SMBG (DO-215AA) - Low-profile surface-mount outline with 0.235–0.255 inch length and matte tin-plated leads |
Pinout & Package
Two-terminal device in SMBG (DO-215AA) package: cathode marked with band; anode unmarked. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal for thermal and surge performance compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient return path | Connected to system ground or low-impedance return plane to sink surge current during clamping |
| Anode (unmarked end) | Protected line input | Connected directly to line being protected (e.g., 48 V supply rail or LIN bus); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain and chassis modules requiring zero-failure reliability |
| Halogen-free & RoHS compliant (M3 suffix) | Meets automotive OEM material restrictions and supports lead-free reflow profiles without brominated flame retardants |
| 600 W peak pulse power (10/1000 μs) | Handles ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surge events without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 5 V or 12 V logic interfaces |
| MSL Level 1 (260 °C peak) | Enables single-pass reflow assembly without moisture-induced popcorn cracking or delamination |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump transients up to 60 V and ISO 16750-2 surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp overvoltage before reaching DC-DC converter input stage. Use Value: Limits peak voltage to 93.6 V at 6.4 A, preserving input capacitor and controller IC integrity during 12 V system load dump events. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure or temperature sensors) connected to microcontroller ADC inputs. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD strikes (IEC 61000-4-2 ±8 kV contact) before signal conditioning circuitry. Use Value: Sub-100 ns response time and 93.6 V clamping prevent latch-up or gate oxide damage in precision op-amps and SAR ADC front-ends. |
| Telecom Line Card Surge Protection | Motor Drive Gate Driver Protection |
Use Scenario: Shielding Ethernet PHY power pins and bias rails from lightning-induced surges on PoE-powered equipment. IC Role / Device Role / Timing Role: TVS deployed on 3.3 V or 5 V auxiliary rails feeding PHY ICs and magnetics bias windings. Use Value: 600 W rating and 100 A IFSM withstand repeated 10/1000 μs surges per GR-1089-CORE requirements without parameter shift. | Use Scenario: Preventing gate oxide failure in high-side N-channel MOSFET drivers exposed to Miller-induced voltage spikes. IC Role / Device Role / Timing Role: TVS placed across driver output and ground to clamp negative-going transients during fast switching transitions. Use Value: 58 V VWM allows safe operation with 48 V gate drive supplies while clamping spikes below MOSFET VGS,max of ±20 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A-M3/52 | Same VWM (58 V), identical clamping (93.6 V), but SMBJ package (DO-214AB) has larger thermal mass and higher RθJA (85 °C/W vs. 100 °C/W) | Preferred for lower-power boards with limited board space; less effective in high-ambient-temperature environments due to reduced thermal dissipation | Select SMBJ58A-M3/52 only if existing layout uses DO-214AB footprint and thermal margin >15 °C is available. |
| SMBG58CA-M3/52 | Bidirectional variant: same VWM (58 V), symmetric clamping (±93.6 V), no polarity marking, VBR min/max identical (64.4–71.2 V) | Required for AC-coupled or differential signal lines (e.g., CAN FD, RS-485) where polarity reversal occurs during normal operation | Choose SMBG58CA-M3/52 only when protecting bidirectional data buses or transformer-coupled circuits where unidirectional blocking is not required. |
Compared with SMBG58A-M3/52, SMBJ58A-M3/52 offers better surge endurance in low-duty-cycle applications but sacrifices thermal efficiency in compact automotive modules; SMBG58CA-M3/52 enables symmetrical clamping essential for differential signaling but eliminates DC blocking capability needed for power rail protection.
Availability
SMBG58A-M3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom line card prototyping requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMBG58A-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 automotive, industrial, and computing applications.
The SMBG Transient Voltage Suppressor family targets high-reliability board-level surge protection, engineered specifically for AEC-Q101 compliance, low-profile SMT integration, and robust 10/1000 μs pulse handling in harsh electrical environments.
FAQ
What is the maximum clamping voltage of SMBG58A-M3/52 under standard test conditions?
The SMBG58A-M3/52 has a maximum clamping voltage (VC) of 93.6 V at 6.4 A peak pulse current using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and reflects the worst-case voltage imposed on the protected circuit during surge events, ensuring compatibility with 100 V-rated downstream components.
Is SMBG58A-M3/52 suitable for automotive applications?
Yes, SMBG58A-M3/52 is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials (M3 suffix). It supports operating junction temperatures from −55 °C to +150 °C and meets MSL Level 1 reflow requirements-making SMBG58A-M3/52 appropriate for engine control units, body electronics, and ADAS power domains.
How does the SMBG58A-M3/52 differ from the SMBG58CA-M3/52 variant?
The SMBG58A-M3/52 is unidirectional with cathode marking and blocks forward current, while SMBG58CA-M3/52 is bidirectional with no polarity marking and clamps symmetrically in both directions. Both share identical VWM, VBR, and VC specs, but SMBG58A-M3/52 is used for DC power rail protection and SMBG58CA-M3/52 for AC or differential signal lines.
What is the thermal resistance of SMBG58A-M3/52, and how does it affect layout?
SMBG58A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. To maintain safe junction temperature under repeated surges, PCB layout must use minimum recommended pad dimensions and avoid excessive trace length or isolation that increases thermal impedance.
Does SMBG58A-M3/52 require derating at elevated ambient temperatures?
Yes, SMBG58A-M3/52 must be derated above TA = 25 °C per Figure 2 in the datasheet. 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 %). Designers must verify clamping performance margins under worst-case thermal conditions using the published derating curve.
SMBG58A-M3/52 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:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG58A-M3/52 FAQ
1.How can I place an order for SMBG58A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG58A-M3/52 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-M3/52 reliable?
The price and inventory of SMBG58A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG58A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG58A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG58A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG58A-M3/52?
SMBG58A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG58A-M3/52 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-M3/52?
For technical support, including SMBG58A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG58A-M3/52 requirements.
6.How does Aetrix verify that SMBG58A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG58A-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG58A-M3/52?
All SMBG58A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG58A-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for SMBG58A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG58A-M3/52 Tags
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