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Vishay General Semiconductor - Diodes Division SMC5K54CA-M3/I
- Part No.:
- SMC5K54CA-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K54CA-M3/I.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,104
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Product details
Overview
SMC5K54CA-M3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR), 87.1 V clamping voltage at 57.4 A (10/1000 μs), 5000 W peak pulse power, and AEC-Q101 qualification - deployed in automotive power rail and industrial sensor interface protection.
For engineers reviewing the SMC5K54CA-M3/I datasheet, SMC5K54CA-M3/I pinout, SMC5K54CA-M3/I application, or SMC5K54CA-M3/I equivalent, key selection criteria include clamping performance under 10/1000 μs transients, bidirectional surge handling capability, thermal resistance (RthJA = 90 °C/W), MSL Level 1 moisture sensitivity, and compatibility with lead-free reflow profiles up to 260 °C.
Technical Context
This TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 54 V, it avalanches at VBR (min 60.0 V), limiting transient energy by diverting current to ground while clamping across terminals to ≤87.1 V at 57.4 A. Its bidirectional symmetry enables protection of AC-coupled or floating lines without polarity constraints.
Engineered for robustness in harsh environments, the SMC5K54CA-M3/I delivers 40 kW peak pulse power under 8/20 μs lightning surges, maintains low incremental surge resistance, achieves <300 ps response time, and sustains operation from −55 °C to +175 °C junction temperature - validated per AEC-Q101 stress tests including HTGB, HTRB, and TCT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 48 V nominal systems. |
| VBR (min/max) | 60.0 V / 66.3 V at 1.0 mA - precise avalanche onset range ensures consistent turn-on behavior across production lots. |
| VC @ IPPM | 87.1 V at 57.4 A (10/1000 μs) - clamping voltage directly determines protected circuit's maximum transient overvoltage exposure. |
| PPPM | 5000 W (10/1000 μs) - defines maximum single-event surge energy absorption capacity without degradation. |
| TJ max. | +175 °C - enables reliable operation in under-hood automotive or high-ambient industrial environments. |
| RthJA | 90 °C/W - thermal resistance from junction to ambient on standard FR4 PCB; informs derating requirements above 25 °C. |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact/air) - provides system-level ESD immunity without additional discrete protection stages. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no cathode band; matte tin-plated leads, halogen-free, RoHS-compliant, MSL Level 1, compatible with J-STD-002 solderability and JESD 201 Class 2 whisker testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode) | Surge current input/output terminal | Bidirectional symmetry means either terminal accepts transient polarity; no marking required - simplifies layout and eliminates orientation errors. |
| Cathode (Anode) | Surge current input/output terminal | Functionally identical to Anode terminal; dual-terminal symmetry supports AC line, differential bus, or floating node protection without polarity dependency. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled, differential, or ungrounded signal paths without polarity-sensitive placement or external components. |
| 5000 W (10/1000 μs) peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) surge compliance in compact SMC footprint. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS modules requiring extended temperature cycling and humidity testing. |
| UL 497B recognition (E136766) | Confirms safety compliance for telecom and industrial equipment requiring certified transient protection on primary-side interfaces. |
| Low Rsurge, fast response | Minimizes voltage overshoot during sub-100 ns transients - critical for safeguarding sensitive gate drivers and microcontroller I/O pins. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 48 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS device clamping voltage spikes on main power rail upstream of DC/DC converters and MCU power inputs. Use Value: Withstands 5000 W surges and operates up to +175 °C, enabling direct placement near connectors in engine bay modules. |
Use Scenario: Guarding analog outputs of pressure/temperature sensors in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional voltage clamp on 0–10 V or 4–20 mA output lines, suppressing induced transients from nearby motor switching. Use Value: 87.1 V clamping at 57.4 A ensures downstream op-amps and ADCs remain within absolute maximum ratings during 1 kV/500 A surge events. |
| Telecom Line Interface | Consumer USB/Display Port Protection |
Use Scenario: Surge suppression on POTS or DSL line cards subjected to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Primary-level bidirectional TVS placed between transformer secondary and line driver IC. Use Value: UL 497B recognition and ±30 kV ESD rating satisfy Telcordia GR-1089-CORE and IEC 61000-4-2 requirements without cascaded protection. |
Use Scenario: Overvoltage hardening of HDMI, USB 2.0, or DisplayPort hot-swap connectors in monitors and docking stations. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) bidirectional clamp on differential pairs to prevent ESD damage to SerDes PHYs. Use Value: Fast response and 54 V VWM allow safe operation across full USB 2.0 signaling swing (0–3.6 V) while blocking >1 kV transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54CA-M3/8A | Lower peak pulse power (600 W vs. 5000 W); SMB (DO-214AA) package; same VWM/VBR range. | Suitable for lower-energy I/O line protection but insufficient for power rail or lightning-level surges. | Select SMBJ54CA-M3/8A only where space constraints prohibit SMC footprint and surge threat level is limited to IEC 61000-4-2 ESD or low-current transients. |
| SMCJ54A-M3/87A | Unidirectional version; identical package, VWM, VBR, and clamping; requires correct polarity placement. | Applicable only where circuit ground reference is fixed and transient polarity is known (e.g., DC power input). | Choose SMCJ54A-M3/87A if protecting a unidirectional DC supply rail and board layout allows strict polarity control - avoids bidirectional overhead. |
Compared with SMBJ54CA-M3/8A and SMCJ54A-M3/87A, the SMC5K54CA-M3/I uniquely combines 5000 W surge capacity, bidirectional symmetry, AEC-Q101 qualification, and UL 497B recognition in a single SMC package - making it the only option among the three qualified for automotive power distribution and telecom primary-side protection.
Availability
SMC5K54CA-M3/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, telecom line protection, and consumer port hardening requiring stable component supply and long-term lifecycle support.
Supply support for SMC5K54CA-M3/I 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, power efficiency, and automotive-grade qualification.
The SMC5K54CA-M3/I belongs to Vishay's TRANSZORB® TVS family - engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where failure modes must be mitigated under extreme surge and thermal stress.
FAQ
What is the clamping voltage of the SMC5K54CA-M3/I under a 10/1000 μs surge?
The SMC5K54CA-M3/I clamps to a maximum of 87.1 V at 57.4 A under the standardized 10/1000 μs waveform. This value is measured per Fig. 3 in Vishay Document 87024 and represents the upper limit of voltage seen by downstream circuitry during a full-rated surge event. The SMC5K54CA-M3/I maintains this clamping performance across its full operating temperature range (−55 °C to +175 °C), with minor derating above 25 °C per Fig. 2.
Is the SMC5K54CA-M3/I suitable for automotive applications?
Yes, the SMC5K54CA-M3/I is AEC-Q101 qualified and rated for junction temperatures up to +175 °C, making it suitable for under-hood and powertrain applications. Its 5000 W surge rating, bidirectional operation, and UL 497B recognition support compliance with ISO 7637-2 and ISO 16750-2 transient test requirements. The SMC5K54CA-M3/I is commonly used in automotive body control modules, battery management systems, and ADAS camera power inputs.
What does the "-M3/I" suffix indicate in SMC5K54CA-M3/I?
The "-M3" suffix denotes halogen-free, RoHS-compliant, industrial-grade construction with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards. The "/I" indicates packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3500 units - optimized for high-volume SMT assembly. The SMC5K54CA-M3/I is distinct from HM3 variants, which carry AEC-Q101 qualification explicitly noted in the part number.
How does the SMC5K54CA-M3/I compare to unidirectional TVS diodes like SMCJ54A?
The SMC5K54CA-M3/I is bidirectional, allowing protection of AC-coupled, floating, or polarity-agnostic lines without orientation concerns, whereas SMCJ54A is unidirectional and requires correct anode/cathode placement relative to system ground. Both share identical VWM (54 V), VBR, and clamping specs, but the SMC5K54CA-M3/I's symmetry adds design flexibility at no penalty in surge rating or thermal performance. The SMC5K54CA-M3/I is preferred for differential buses and telecom interfaces.
What is the thermal resistance and maximum junction temperature of the SMC5K54CA-M3/I?
The SMC5K54CA-M3/I has a junction-to-ambient thermal resistance (RthJA) of 90 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A, and a junction-to-mount thermal resistance (RthJM) of 4.0 °C/W per JEDEC 51-14. Its maximum rated junction temperature is +175 °C, supporting operation in high-ambient environments such as automotive engine compartments or industrial enclosures. Derating curves in Fig. 2 of Document 87024 define safe power limits above 25 °C ambient.
SMC5K54CA-M3/I 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):
- 57.4A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC5K54CA-M3/I FAQ
1.How can I place an order for SMC5K54CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K54CA-M3/I 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 SMC5K54CA-M3/I reliable?
The price and inventory of SMC5K54CA-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC5K54CA-M3/I is usually 5 days.
3.What payment methods are accepted for SMC5K54CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K54CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K54CA-M3/I?
SMC5K54CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K54CA-M3/I 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 SMC5K54CA-M3/I?
For technical support, including SMC5K54CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K54CA-M3/I requirements.
6.How does Aetrix verify that SMC5K54CA-M3/I is sourced from the original manufacturer or authorized distributors?
All SMC5K54CA-M3/I 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 SMC5K54CA-M3/I meets industry standards.
7.What is the process for return or replacement of SMC5K54CA-M3/I?
All SMC5K54CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K54CA-M3/I, 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 SMC5K54CA-M3/I part is unused and in its original packaging.
Return procedure for SMC5K54CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K54CA-M3/I Tags
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