Vishay General Semiconductor - Diodes Division SMC3K58CA-M3/57
- Part No.:
- SMC3K58CA-M3/57
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K58CA-M3/57.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SMC3K58CA-M3/57 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 3000 W peak pulse power (10/1000 μs), 64.4–71.2 V breakdown voltage, and 93.6 V maximum clamping voltage at 32.1 A surge current. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning-induced surges in automotive and industrial systems.
For engineers reviewing the SMC3K58CA-M3/57 datasheet, SMC3K58CA-M3/57 pinout, SMC3K58CA-M3/57 application, or SMC3K58CA-M3/57 equivalent, key selection criteria include clamping voltage margin relative to protected circuit's absolute maximum rating, standoff voltage compatibility with operating rail (58 V), bidirectional polarity requirement, and AEC-Q101 qualification for automotive use.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered by transient overvoltage exceeding its breakdown range (64.4–71.2 V). Its low incremental surge resistance and fast response time ensure effective suppression of sub-microsecond transients without latch-up or thermal runaway.
Designed for unidirectional PCB top-side mounting only, it meets MSL level 1 per J-STD-020 and is halogen-free, RoHS-compliant, and qualified to AEC-Q101 - confirming suitability for under-hood automotive electronics where reliability under thermal cycling and humidity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.4 V / 71.2 V - defines minimum trigger threshold and worst-case conduction onset across temperature and unit variation |
| VWM | 58 V - maximum continuous reverse operating voltage; must exceed system's highest steady-state rail voltage |
| VC @ IPPM | 93.6 V - clamping voltage at 32.1 A peak pulse; determines upper bound of protected node voltage during surge |
| PPPM | 3000 W - peak pulse power handling (10/1000 μs waveform); quantifies energy absorption capability per transient event |
| IPPM | 32.1 A - peak surge current corresponding to 3000 W at 93.6 V; used to size series impedance and verify layout current capacity |
| TJ max | +150 °C - maximum junction temperature; sets thermal derating limits for repetitive surge conditions |
| Polarity | Bidirectional - protects both positive and negative transients without polarity-sensitive placement |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound, M3 suffix indicates halogen-free, RoHS-compliant, commercial-grade construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Transient current sink path | Connected to protected line; conducts surge current to ground when voltage exceeds VBR |
| Anode | Reference return path | Typically tied to system ground or low-impedance return plane; completes clamping loop during bidirectional events |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power (10/1000 μs) | Enables robust protection against high-energy transients common in automotive load-dump and industrial motor switching |
| AEC-Q101 qualified | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| MSL level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow |
| UL 497B recognition (E136766) | Confirms safety compliance for telecom and industrial equipment requiring certified surge protection components |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision and downstream IC survivability |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in junction boxes and battery management modules from load-dump and alternator ripple. IC Role / Device Role / Timing Role: Standoff voltage clamp placed between supply rail and ground, activated only during overvoltage events. Use Value: Prevents damage to downstream PMICs and microcontrollers by limiting rail voltage to ≤93.6 V during 3000 W transients. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional shunt protector on signal pair, referenced to local ground or isolated return. Use Value: Maintains signal integrity during ESD and inductive kick events without adding leakage or capacitance that degrades bandwidth. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Surge protection on Ethernet PHY power and data lines in PoE-powered switches and base stations. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary gas discharge tube, clamping residual transients to safe levels. Use Value: Complies with ITU-T K.21 basic protection level while supporting fast transient immunity up to 30 kV contact ESD. | Use Scenario: Safeguarding gate drivers and MCU I/O in washing machine motor inverters exposed to brush-commutator noise. IC Role / Device Role / Timing Role: Localized clamp across half-bridge DC bus or gate-source terminals. Use Value: Absorbs commutation spikes up to 32.1 A without degradation, extending MOSFET lifetime and reducing field failure rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMC3K58CAHM3/57 | AEC-Q101 qualified version; identical electrical specs but enhanced process validation for automotive use | Required for new automotive designs; not necessary for commercial/industrial applications | Select SMC3K58CAHM3/57 when automotive qualification documentation (test reports, PPAP) is mandatory |
| SMC3K60CA-M3/57 | Higher VBR (66.7–73.7 V) and VWM (60 V); same PPPM, lower IPPM (31.0 A), higher VC (96.8 V) | Better suited for 60 V nominal systems; less margin for 58 V rails | Choose SMC3K60CA-M3/57 only if system operating voltage is ≥60 V and clamping headroom allows 96.8 V |
Compared with SMC3K58CA-M3/57, the HM3 variant adds automotive qualification without electrical change, while SMC3K60CA-M3/57 trades lower clamping performance for higher standoff - making SMC3K58CA-M3/57 optimal for 58 V systems needing tight clamping margin and commercial-grade cost structure.
Availability
SMC3K58CA-M3/57 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, telecom line protection, and consumer appliance motor control applications requiring stable component supply and long-term obsolescence management.
Supply support for SMC3K58CA-M3/57 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, efficiency, and application-specific optimization.
The SMC3KxxCA family was engineered for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where 3000 W surge immunity and AEC-Q101 compliance are essential design requirements.
FAQ
What is the breakdown voltage range of the SMC3K58CA-M3/57?
The SMC3K58CA-M3/57 has a guaranteed breakdown voltage range of 64.4 V to 71.2 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures reliable triggering across temperature extremes and unit-to-unit variation while maintaining sufficient margin above its 58 V standoff rating.
Is the SMC3K58CA-M3/57 suitable for automotive applications?
The SMC3K58CA-M3/57 is halogen-free and RoHS-compliant but is not AEC-Q101 qualified. For automotive use, Vishay specifies the SMC3K58CAHM3/57 variant. The SMC3K58CA-M3/57 remains appropriate for commercial and industrial applications where AEC-Q101 is not mandated.
What is the maximum clamping voltage of the SMC3K58CA-M3/57 at rated surge current?
The SMC3K58CA-M3/57 exhibits a maximum clamping voltage of 93.6 V at its rated peak pulse current of 32.1 A (10/1000 μs waveform). This value is critical for verifying that protected circuits remain below their absolute maximum voltage ratings during surge events.
Does the SMC3K58CA-M3/57 have polarity marking on the package?
No - the SMC3K58CA-M3/57 is a bidirectional TVS diode and carries no polarity marking on the SMC (DO-214AB) case. Physical orientation does not affect functionality, though standard practice places the cathode band toward the protected line for consistency with unidirectional layouts.
What packaging format is supplied for the SMC3K58CA-M3/57?
The SMC3K58CA-M3/57 is supplied in 7-inch diameter plastic tape and reel format, with a base quantity of 850 units per reel (package code /57). This configuration supports automated SMT placement and complies with EIA-481 standards for carrier tape dimensions and pocket geometry.
SMC3K58CA-M3/57 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 32.1A
- Power - Peak Pulse:
- 3000W (3kW)
- 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-214AB (SMCJ)
SMC3K58CA-M3/57 FAQ
1.How can I place an order for SMC3K58CA-M3/57 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K58CA-M3/57 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 SMC3K58CA-M3/57 reliable?
The price and inventory of SMC3K58CA-M3/57 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC3K58CA-M3/57 is usually 5 days.
3.What payment methods are accepted for SMC3K58CA-M3/57?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K58CA-M3/57 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K58CA-M3/57?
SMC3K58CA-M3/57 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K58CA-M3/57 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 SMC3K58CA-M3/57?
For technical support, including SMC3K58CA-M3/57 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K58CA-M3/57 requirements.
6.How does Aetrix verify that SMC3K58CA-M3/57 is sourced from the original manufacturer or authorized distributors?
All SMC3K58CA-M3/57 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 SMC3K58CA-M3/57 meets industry standards.
7.What is the process for return or replacement of SMC3K58CA-M3/57?
All SMC3K58CA-M3/57 units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K58CA-M3/57, 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 SMC3K58CA-M3/57 part is unused and in its original packaging.
Return procedure for SMC3K58CA-M3/57:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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