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Vishay General Semiconductor - Diodes Division SMC3K58CA-M3/9A
- Part No.:
- SMC3K58CA-M3/9A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K58CA-M3/9A.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,395
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Product details
Overview
SMC3K58CA-M3/9A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 3000 W peak pulse power (10/1000 μs), with breakdown voltage 64.4–71.2 V, stand-off voltage 58 V, and clamping voltage 93.6 V at 32.1 A surge current. It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SMC3K58CA-M3/9A datasheet, SMC3K58CA-M3/9A pinout, SMC3K58CA-M3/9A application, or SMC3K58CA-M3/9A equivalent, key selection criteria include bidirectional polarity, AEC-Q101 qualification, MSL level 1 rating, 150 °C max junction temperature, and compatibility with wave soldering restrictions on PCB bottom side mounting.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by transient overvoltage events. Its bidirectional structure enables symmetrical clamping for AC-coupled or floating signal lines, and its low incremental surge resistance ensures stable clamping under high-current pulses up to 32.1 A (10/1000 μs).
Designed for automotive-grade reliability, the SMC3K58CA-M3/9A meets AEC-Q101 stress testing requirements and UL 497B safety recognition (E136766). Its halogen-free, RoHS-compliant construction and J-STD-020 MSL level 1 rating support reflow-compatible assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.4 V / 71.2 V - Ensures reliable triggering above 58 V operating voltage while avoiding false trips during normal transients. |
| VWM | 58 V - Maximum continuous reverse working voltage compatible with 48 V nominal automotive systems. |
| VC @ IPPM | 93.6 V - Clamping voltage at 32.1 A limits protected circuit stress during worst-case 3000 W surges. |
| PPPM | 3000 W - Peak pulse power handling capability per 10/1000 μs waveform per ANSI/IEEE C62.35. |
| IPPM | 32.1 A - Surge current capacity derived directly from VC and PPPM; defines minimum trace/solder joint robustness needed. |
| TJ max | 150 °C - Enables operation in under-hood automotive environments with sustained thermal loads. |
| Polarity | Bidirectional - Supports protection of AC signals, differential buses, or ungrounded circuits without polarity constraints. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. M3 suffix indicates halogen-free, RoHS-compliant, commercial-grade construction with JESD 201 class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Transient current sink (bidirectional) | No functional cathode/anode distinction - terminals are symmetric; marking denotes orientation only for mechanical alignment. |
| Anode (unmarked end) | Transient current sink (bidirectional) | Electrically identical to cathode terminal; bidirectional conduction eliminates polarity-dependent routing constraints. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and chassis applications requiring extended temperature cycling, humidity bias, and mechanical shock endurance. |
| MSL level 1 (J-STD-020) | Enables standard reflow assembly without dry-pack or baking preconditioning, reducing manufacturing overhead. |
| UL 497B recognition (E136766) | Confirms compliance with safety standards for telecom and industrial surge protection interfaces. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision for sensitive gate drivers. |
| Halogen-free & RoHS-compliant (M3) | Meets global environmental regulations and supports lead-free assembly without compromising thermal or electrical performance. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protection of 48 V battery-fed DC-DC converter inputs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across input rails to shunt energy before it reaches primary-side MOSFETs and controllers. Use Value: Limits rail voltage to ≤93.6 V during 32.1 A surges, preventing gate oxide rupture in 60 V-rated power switches. | Use Scenario: Safeguarding PLC analog input modules connected to 24 V solenoid valve wiring exposed to inductive kickback. IC Role / Device Role / Timing Role: Bidirectional clamping element on signal/power lines to absorb reverse EMF spikes without polarity reversal. Use Value: Maintains signal integrity by clamping transients within 1 ns response time, avoiding ADC saturation or microcontroller reset. |
| Automotive Sensor Signal Lines | Telecom Power Interface |
Use Scenario: Shielding CAN FD transceiver supply pins from coupled noise in vehicle body control modules. IC Role / Device Role / Timing Role: Localized rail clamp adjacent to transceiver VCC, decoupling high-frequency transients induced by nearby switching regulators. Use Value: Prevents latch-up in transceivers by holding supply voltage below 93.6 V during 10/1000 μs surges up to 3000 W. | Use Scenario: Front-end protection for PoE-powered network switches subjected to lightning-induced surges on Ethernet ports. IC Role / Device Role / Timing Role: Primary surge suppression stage on 48 V PSE output rails prior to DC-DC conversion and isolation. Use Value: Absorbs multi-kW transients while maintaining UL 497B compliance and enabling compact SMC footprint on dense PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMC3K58CAHM3/9A | AEC-Q101 qualified version; identical electrical specs but enhanced reliability screening for automotive use. | Required for new automotive designs where AEC-Q101 compliance is mandatory; not necessary for commercial-grade systems. | Select SMC3K58CAHM3/9A when qualifying for automotive OEM programs or safety-critical subsystems. |
| SMC3K60CA-M3/9A | Higher VBR (66.7–73.7 V) and VWM (60 V); same PPPM, lower IPPM (31.0 A), higher VC (96.8 V). | Suitable for 60 V nominal systems; provides margin against false triggering in high-noise environments. | Choose SMC3K60CA-M3/9A if system operating voltage exceeds 58 V or requires tighter VBR tolerance. |
Compared with SMC3K58CA-M3/9A, the HM3 variant adds automotive qualification without altering electrical behavior, while SMC3K60CA-M3/9A trades clamping tightness for higher stand-off voltage-making it preferable in 60 V systems where overvoltage margin outweighs clamping precision.
Availability
SMC3K58CA-M3/9A is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive inputs, and telecom power interface applications requiring stable component supply and long-term production continuity.
Supply support for SMC3K58CA-M3/9A 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMC3KxxCA series targets high-energy transient suppression in harsh environments, designed specifically for automotive, industrial, and telecom infrastructure where 3000 W surge immunity and AEC-Q101 compliance are critical.
FAQ
What is the maximum clamping voltage of the SMC3K58CA-M3/9A under full-rated surge conditions?
The SMC3K58CA-M3/9A has a maximum clamping voltage (VC) of 93.6 V at its rated peak pulse current of 32.1 A (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 transient events. The SMC3K58CA-M3/9A maintains this clamping performance across its specified operating temperature range of -55 °C to +150 °C.
Is the SMC3K58CA-M3/9A suitable for automotive applications?
Yes, the SMC3K58CA-M3/9A is AEC-Q101 qualified and UL 497B recognized (file E136766), making it suitable for automotive applications including power distribution, sensor interfaces, and infotainment systems. However, for new automotive designs, Vishay recommends the HM3-suffixed variant (e.g., SMC3K58CAHM3/9A) due to its enhanced qualification scope. The SMC3K58CA-M3/9A remains valid for legacy or non-safety-critical automotive uses.
What does the "M3" suffix indicate in SMC3K58CA-M3/9A?
The "M3" suffix in SMC3K58CA-M3/9A denotes halogen-free, RoHS-compliant construction with commercial-grade reliability screening and JESD 201 class 2 whisker resistance. It confirms compliance with environmental regulations and suitability for lead-free reflow assembly. Unlike the "HM3" suffix, "M3" does not imply AEC-Q101 qualification-this distinction is critical for automotive program validation.
Can the SMC3K58CA-M3/9A be used in bidirectional signal line protection?
Yes, the SMC3K58CA-M3/9A is exclusively available in bidirectional polarity, making it ideal for protecting AC-coupled, differential, or floating signal paths such as CAN bus lines, RS-485 interfaces, or sensor bridges. Its symmetrical VBR and VC characteristics ensure consistent clamping regardless of transient polarity, eliminating the need for orientation-aware layout or external polarity management circuitry.
What is the package type and mounting compatibility of the SMC3K58CA-M3/9A?
The SMC3K58CA-M3/9A uses the SMC (DO-214AB) surface-mount package with standardized dimensions (0.305" × 0.220") and matte tin-plated leads. It meets J-STD-020 MSL level 1, allowing direct reflow without baking. However, Vishay explicitly advises against PCB bottom-side wave mounting due to thermal stress risks-reflow or selective soldering is recommended for optimal reliability.
SMC3K58CA-M3/9A 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-M3/9A FAQ
1.How can I place an order for SMC3K58CA-M3/9A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K58CA-M3/9A 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-M3/9A reliable?
The price and inventory of SMC3K58CA-M3/9A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC3K58CA-M3/9A is usually 5 days.
3.What payment methods are accepted for SMC3K58CA-M3/9A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K58CA-M3/9A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K58CA-M3/9A?
SMC3K58CA-M3/9A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K58CA-M3/9A 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-M3/9A?
For technical support, including SMC3K58CA-M3/9A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K58CA-M3/9A requirements.
6.How does Aetrix verify that SMC3K58CA-M3/9A is sourced from the original manufacturer or authorized distributors?
All SMC3K58CA-M3/9A 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-M3/9A meets industry standards.
7.What is the process for return or replacement of SMC3K58CA-M3/9A?
All SMC3K58CA-M3/9A units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K58CA-M3/9A, 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-M3/9A part is unused and in its original packaging.
Return procedure for SMC3K58CA-M3/9A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K58CA-M3/9A Tags
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