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Vishay General Semiconductor - Diodes Division SMC5K54CA-M3/H
- Part No.:
- SMC5K54CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K54CA-M3/H.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,042
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Product details
Overview
SMC5K54CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features 54 V standoff 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 to protect MOSFETs and signal lines in automotive powertrain control units.
For engineers reviewing the SMC5K54CA-M3/H datasheet, SMC5K54CA-M3/H pinout, SMC5K54CA-M3/H application, or SMC5K54CA-M3/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, bidirectional polarity, junction temperature rating up to +175 °C, RoHS/halogen-free compliance, and MSL level 1 moisture sensitivity.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transient overvoltages induced by inductive switching or ESD events. Its bidirectional architecture enables symmetric clamping on both polarities without external biasing, and its low incremental surge resistance ensures minimal voltage overshoot during high-current surges.
The device meets IEC 61000-4-2 (±30 kV contact/air discharge) and is qualified per AEC-Q101 for automotive underhood applications. Thermal design leverages RthJM = 4.0 °C/W and RthJA = 90 °C/W on standard FR4, supporting reliable operation across -55 °C to +175 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (min/max) | 60.0 V / 66.3 V at 1.0 mA - precise breakdown threshold ensuring predictable turn-on during overvoltage events. |
| VC @ IPPM (10/1000 μs) | 87.1 V at 57.4 A - clamping voltage under standardized surge; determines protected circuit's maximum stress level. |
| PPPM | 5000 W - peak pulse power handling capability with 10/1000 μs waveform; supports robust protection against load dump and ISO 7637-2 pulses. |
| TJ max. | +175 °C - maximum junction temperature rating enabling use in high-ambient automotive engine compartments. |
| Polarity | Bidirectional - provides symmetrical clamping for AC-coupled or floating signal lines without polarity constraints. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.11 mm × 6.22 mm footprint and 2.06 mm height; optimized for automated assembly and thermal dissipation. |
Pinout & Package
SMC5K54CA-M3/H uses a 2-terminal SMC (DO-214AB) package with no cathode band marking due to bidirectional construction. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (non-polarized) | Surge current path | Both terminals serve identically as current entry/exit points during transient events; no PCB polarity orientation required. |
| Cathode (not marked) | Clamping node reference | Internal structure symmetric; terminal designation irrelevant - device functions identically regardless of connection direction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded sensor interfaces without polarity concerns. |
| 5000 W (10/1000 μs) peak pulse power | Withstands severe automotive load-dump transients (ISO 7637-2 Pulse 5a) without degradation when properly heatsinked. |
| AEC-Q101 qualification | Validated for automotive powertrain, chassis, and body electronics requiring zero-failure reliability under thermal cycling and humidity stress. |
| UL 497B recognition (E136766) | Confirms safety compliance for telecom and industrial interface protection where regulatory agency certification is mandatory. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT reflow profiles without preconditioning, reducing manufacturing complexity and cost. |
Applications
| Automotive Powertrain Control | Industrial Sensor Signal Lines |
|---|---|
|
Use Scenario: Protecting microcontroller I/O and gate drivers in engine control modules exposed to alternator load dump and relay coil flyback. IC Role / Device Role: Shunt-type transient suppressor placed across power rails and signal inputs to clamp voltage spikes below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic circuits during ISO 7637-2 Pulse 5a (75 V/100 ms) events. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLCs from EMI-induced transients on 4–20 mA loops. IC Role / Device Role: Bidirectional TVS connected between signal line and ground to absorb fast-rising noise without distorting DC signal integrity. Use Value: Maintains ±0.1% measurement accuracy by limiting transient-induced offset shift to <10 mV during 30 kV ESD contact discharge. |
| Telecom Interface Protection | Consumer Device USB/Display Port |
|
Use Scenario: Safeguarding Ethernet PHY transceivers and PoE injectors against lightning-induced surges on RJ45 ports per IEC 61000-4-5. IC Role / Device Role: Primary-level surge arrestor mounted at connector entry point, upstream of secondary protection like polymer PTCs. Use Value: Limits induced common-mode voltage to <100 V during 8/20 μs 1 kA surge, preserving PHY silicon integrity and link stability. |
Use Scenario: Protecting HDMI and USB 2.0 data lanes in smart TVs and docking stations from human-body-model ESD events during hot-plug insertion. IC Role / Device Role: Low-capacitance TVS placed directly at port connector to divert ESD current before reaching SerDes receiver input. Use Value: Clamps 15 kV air discharge to <25 V within 1 ns, preventing bit errors and interface lockup without degrading 480 Mbps signal rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54CA-E3/5A (Vishay) | Lower PPPM (400 W vs. 5000 W); SMA package (smaller footprint, higher RthJA = 110 °C/W). | Suitable only for low-energy ESD-only scenarios; not rated for automotive load dump or IEC 61000-4-5 surges. | Select when board space is constrained and surge energy is limited to <100 mJ. |
| 1.5KE54CA (ON Semiconductor) | Through-hole DO-201 package; same VWM/VBR/VC specs but lower thermal mass and no AEC-Q101 qualification. | Lacks automotive qualification and MSL level 1 rating; requires wave-solder or hand-solder process instead of reflow. | Choose for legacy through-hole designs or non-automotive industrial equipment where qualification is not mandated. |
Compared with SMAJ54CA-E3/5A and 1.5KE54CA, the SMC5K54CA-M3/H delivers 12.5× higher surge power handling, AEC-Q101 validation for automotive deployment, and surface-mount compatibility with modern high-volume SMT lines - making it the preferred choice for mission-critical transient protection where energy levels exceed 100 mJ and reliability standards are stringent.
Availability
SMC5K54CA-M3/H is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor interface protection, and telecom surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMC5K54CA-M3/H 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 high-reliability, automotive-grade, and industrial applications.
The SMC5KxxCA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive underhood, industrial motor drives, and telecom infrastructure.
FAQ
What is the clamping voltage of SMC5K54CA-M3/H under a 10/1000 μs surge?
The SMC5K54CA-M3/H has a maximum clamping voltage (VC) of 87.1 V at 57.4 A under the standardized 10/1000 μs waveform. This value is measured per Figure 3 in the Vishay datasheet (Document Number: 87024) and defines the upper voltage limit imposed on protected circuitry during a high-energy transient event. The SMC5K54CA-M3/H maintains this clamping performance across its full operating temperature range.
Is SMC5K54CA-M3/H qualified for automotive applications?
Yes, the SMC5K54CA-M3/H is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Revision: 10-Sep-2024, Document Number: 87024). This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - confirming suitability for automotive powertrain, chassis, and body electronics. The SMC5K54CA-M3/H also meets MSL Level 1 and UL 497B safety requirements.
What does the "-M3/H" suffix indicate in SMC5K54CA-M3/H?
The "-M3/H" suffix denotes halogen-free, RoHS-compliant, industrial-grade packaging: "M3" specifies matte tin-plated leads meeting JESD 201 Class 2 whisker resistance and J-STD-002 solderability, while "/H" indicates 7-inch plastic tape-and-reel delivery with 850 units per reel. This differs from "HM3" variants, which carry AEC-Q101 qualification in addition to M3 attributes. The SMC5K54CA-M3/H itself is AEC-Q101 qualified despite the base M3 designation.
Does SMC5K54CA-M3/H have polarity markings on the package?
No, the SMC5K54CA-M3/H has no cathode band or polarity marking because it is a bidirectional TVS diode. Its internal structure provides symmetrical clamping for both positive and negative transients, eliminating the need for orientation-specific placement on PCBs. The Vishay datasheet confirms "no cathode band for bidirectional types" in the Mechanical Data section.
What is the maximum junction temperature rating for SMC5K54CA-M3/H?
The SMC5K54CA-M3/H has a maximum junction temperature (TJmax) of +175 °C, as specified in the Primary Characteristics table of the Vishay datasheet (Document Number: 87024). This rating enables reliable operation in high-ambient environments such as automotive engine compartments or industrial motor drive enclosures, and supports thermal design using RthJM = 4.0 °C/W and RthJA = 90 °C/W values.
SMC5K54CA-M3/H 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/H FAQ
1.How can I place an order for SMC5K54CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K54CA-M3/H 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/H reliable?
The price and inventory of SMC5K54CA-M3/H 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/H is usually 5 days.
3.What payment methods are accepted for SMC5K54CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K54CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K54CA-M3/H?
SMC5K54CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K54CA-M3/H 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/H?
For technical support, including SMC5K54CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K54CA-M3/H requirements.
6.How does Aetrix verify that SMC5K54CA-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K54CA-M3/H 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/H meets industry standards.
7.What is the process for return or replacement of SMC5K54CA-M3/H?
All SMC5K54CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K54CA-M3/H, 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/H part is unused and in its original packaging.
Return procedure for SMC5K54CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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