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Vishay General Semiconductor - Diodes Division SMC3K54CA-M3/57
- Part No.:
- SMC3K54CA-M3/57
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC3K54CA-M3/57.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,360
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Product details
Overview
SMC3K54CA-M3/57 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 3000 W peak pulse power (10/1000 μs), 54 V standoff voltage (VWM), 60.0–66.3 V breakdown voltage (VBR), and 87.1 V maximum clamping voltage (VC) at 34.4 A peak surge current. It protects automotive sensor signal lines and MOSFET gate drivers against inductive switching transients.
For engineers reviewing the SMC3K54CA-M3/57 datasheet, SMC3K54CA-M3/57 pinout, SMC3K54CA-M3/57 application, or SMC3K54CA-M3/57 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, bidirectional polarity requirement for AC-coupled or floating lines, thermal derating above 25 °C, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse transient voltage exceeds VBR, it avalanches to divert surge current away from downstream components. Its low incremental surge resistance ensures stable clamping performance across varying surge magnitudes.
Designed for unidirectional PCB layout compatibility with standard SMC footprints, it features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is not recommended for bottom-side wave soldering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for normal circuit operation. |
| VBR min/max | 60.0 V / 66.3 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold tolerance. |
| VC @ IPPM | 87.1 V - Clamped voltage at 34.4 A peak surge; must remain below protected device's absolute maximum rating. |
| PPPM | 3000 W - Peak pulse power handling with 10/1000 μs waveform; determines survivability against standardized lightning/surge events. |
| Polarity | Bidirectional - Symmetric clamping for AC signals or floating nodes; no polarity marking on device body. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments with proper board thermal design. |
| Package | SMC (DO-214AB) - Standardized 8.0 mm × 8.0 mm copper pad footprint; supports automated placement and reflow. |
Pinout & Package
SMC3K54CA-M3/57 uses the industry-standard SMC (DO-214AB) surface-mount package with two terminals: Cathode (K) and Anode (A). The device is bidirectional and unmarked; polarity is determined by circuit layout rather than physical marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Transient return path | Connected to ground or low-impedance reference; completes shunt path during avalanche conduction. |
| Cathode (K) | Transient input node | Connected to protected line (e.g., sensor output); carries full surge current into anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements. |
| 3000 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges without degradation when properly mounted on 8 mm × 8 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage stress on protected ICs-critical for 5 V or 12 V logic interfaces with tight voltage margins. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance mandates for industrial and automotive OEMs without compromising surge robustness. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life before reflow; eliminates baking requirements and simplifies SMT line logistics. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure or temperature sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between sensor output and microcontroller ADC input. Use Value: Limits transient excursions to ≤87.1 V, preserving ADC integrity and preventing latch-up in 5 V rail systems. |
Use Scenario: Guarding digital enable/disable lines connecting PLC outputs to MOSFET gate drivers in variable-frequency drives. IC Role / Device Role / Timing Role: Bidirectional clamping element absorbing inductive kickback from relay coils and solenoid loads. Use Value: Prevents gate oxide damage by clamping spikes to 87.1 V while maintaining <2 μA leakage at 54 V standby. |
| Telecom Line Interface | Consumer Power Adapter Feedback Loop |
|
Use Scenario: Safeguarding RS-485 transceiver data lines in outdoor base stations subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level surge protection ahead of secondary TVS and common-mode chokes. Use Value: Absorbs up to 3000 W of differential-mode energy, reducing downstream component stress and enabling single-stage protection architecture. |
Use Scenario: Securing optocoupler feedback paths in isolated AC/DC adapters where transient coupling occurs via transformer parasitics. IC Role / Device Role / Timing Role: Fast-response clamp on secondary-side error amplifier output to prevent false regulation shutdown. Use Value: Responds in <1 ps to transients, limiting excursion to 87.1 V without affecting loop stability or bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMC3K54CAHM3/57 | AEC-Q101 qualified version with identical electrical specs; HM3 suffix denotes automotive qualification grade. | Required for new automotive designs requiring formal AEC-Q101 documentation and traceability. | Select SMC3K54CAHM3/57 when automotive PPAP submission or long-term vehicle program support is mandated. |
| SMAJ54A | Lower PPPM (400 W), SMA package (smaller footprint), unidirectional only, no AEC-Q101 qualification. | Suitable for cost-sensitive consumer electronics with lower surge exposure and no automotive compliance needs. | Choose SMAJ54A only for non-automotive, space-constrained designs where 3000 W surge immunity is not required. |
Compared with SMC3K54CA-M3/57, the HM3 variant adds formal automotive qualification without altering electrical behavior, while SMAJ54A trades surge capacity and bidirectionality for size and cost-making SMC3K54CA-M3/57 the optimal choice for high-reliability 54 V line protection where AEC-Q101 is optional but 3000 W capability is essential.
Availability
SMC3K54CA-M3/57 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial motor drive I/O protection, and telecom line interface circuits requiring stable component supply and long-lifecycle support.
Supply support for SMC3K54CA-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 series was developed specifically for high-energy transient suppression in harsh automotive and industrial environments, balancing clamping performance, thermal robustness, and standardized SMC packaging for broad manufacturability.
FAQ
What is the clamping voltage of SMC3K54CA-M3/57 at its rated peak pulse current?
The SMC3K54CA-M3/57 has a maximum clamping voltage (VC) of 87.1 V when subjected to its rated peak pulse current of 34.4 A using the standard 10/1000 μs waveform. This value is measured under controlled test conditions at TA = 25 °C and is critical for ensuring protected circuitry remains within safe operating limits during surge events. The SMC3K54CA-M3/57 maintains this clamping performance across its specified junction temperature range.
Is SMC3K54CA-M3/57 suitable for automotive applications?
SMC3K54CA-M3/57 is halogen-free and RoHS-compliant but not AEC-Q101 qualified; its HM3-suffix counterpart (SMC3K54CAHM3/57) carries formal AEC-Q101 certification. While SMC3K54CA-M3/57 shares identical electrical and thermal specifications, it lacks the extended reliability validation required for safety-critical automotive subsystems. For non-safety-critical under-dash modules or legacy designs, SMC3K54CA-M3/57 may be used-but SMC3K54CA-M3/57 is not approved for new automotive designs per Vishay's documentation.
What does the "-M3/57" suffix mean in SMC3K54CA-M3/57?
The "-M3" suffix indicates halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance, while "/57" specifies packaging in 7-inch diameter plastic tape and reel containing 850 units. This ordering code defines both material compliance and logistics format-distinct from the HM3 automotive-qualified variant. SMC3K54CA-M3/57 is intended for commercial and industrial applications where regulatory compliance and standard SMT handling are priorities.
How does SMC3K54CA-M3/57 compare to SMC3K54CAHM3/57 electrically?
SMC3K54CA-M3/57 and SMC3K54CAHM3/57 share identical electrical characteristics-including VWM (54 V), VBR (60.0–66.3 V), VC (87.1 V), and PPPM (3000 W)-and use the same SMC (DO-214AB) package. The sole difference is qualification: HM3 denotes full AEC-Q101 compliance with additional stress testing and traceability. SMC3K54CA-M3/57 is functionally interchangeable in circuits where automotive qualification is not mandated.
What is the maximum operating temperature for SMC3K54CA-M3/57?
The SMC3K54CA-M3/57 has a maximum junction temperature (TJ max) of +150 °C and an operating junction/storage temperature range of –55 °C to +150 °C. Derating of peak pulse power applies above TA = 25 °C per Figure 2 in the datasheet; at 125 °C ambient, usable PPPM drops to approximately 1500 W. Proper PCB copper area (0.31″ × 0.31″ recommended) is required to maintain thermal performance in SMC3K54CA-M3/57 applications.
SMC3K54CA-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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 34.4A
- 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)
SMC3K54CA-M3/57 FAQ
1.How can I place an order for SMC3K54CA-M3/57 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC3K54CA-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 SMC3K54CA-M3/57 reliable?
The price and inventory of SMC3K54CA-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 SMC3K54CA-M3/57 is usually 5 days.
3.What payment methods are accepted for SMC3K54CA-M3/57?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC3K54CA-M3/57 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC3K54CA-M3/57?
SMC3K54CA-M3/57 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC3K54CA-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 SMC3K54CA-M3/57?
For technical support, including SMC3K54CA-M3/57 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC3K54CA-M3/57 requirements.
6.How does Aetrix verify that SMC3K54CA-M3/57 is sourced from the original manufacturer or authorized distributors?
All SMC3K54CA-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 SMC3K54CA-M3/57 meets industry standards.
7.What is the process for return or replacement of SMC3K54CA-M3/57?
All SMC3K54CA-M3/57 units undergo pre-shipment inspection (PSI). If there is an issue with SMC3K54CA-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 SMC3K54CA-M3/57 part is unused and in its original packaging.
Return procedure for SMC3K54CA-M3/57:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC3K54CA-M3/57 Tags
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