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Vishay General Semiconductor - Diodes Division SMC5K54A-M3/H
- Part No.:
- SMC5K54A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K54A-M3/H.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,155
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Product details
Overview
SMC5K54A-M3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR) at 1 mA, 5000 W peak pulse power (10/1000 μs), and clamps to ≤87.1 V at 57.4 A peak pulse current - ideal for protecting MOSFETs and signal lines in industrial power supplies.
For engineers reviewing the SMC5K54A-M3/H datasheet, SMC5K54A-M3/H pinout, SMC5K54A-M3/H application, or SMC5K54A-M3/H equivalent, key selection criteria include its AEC-Q101 qualification status (not applicable - industrial grade only), 150 °C max junction temperature, low 1.0 μA reverse leakage at VWM, and compliance with IEC 61000-4-2 ESD (30 kV contact/air).
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, responding within picoseconds to transients induced by inductive switching or lightning surges. Its unidirectional polarity (cathode band marked) enables DC-biased line protection without forward conduction during normal operation.
The SMC5K54A-M3/H delivers 5000 W peak pulse power under 10/1000 μs waveform and sustains 354 A peak pulse current under 8/20 μs surge, with thermal resistance RthJA = 90 °C/W and RthJM = 4.0 °C/W - enabling reliable operation in high-power transient environments up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected line. |
| VBR min/max | 60.0 V / 66.3 V at 1 mA - tight breakdown tolerance ensures predictable turn-on threshold across production lots. |
| VC @ IPPM (10/1000 μs) | ≤87.1 V at 57.4 A - clamping voltage directly limits stress on downstream ICs during standardized surge events. |
| PPPM | 5000 W (10/1000 μs) - indicates energy-handling capability sufficient for automotive-grade load-dump and industrial switching transients. |
| IR @ VWM | ≤1.0 μA - ultra-low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | +150 °C - supports operation in under-hood or enclosed industrial enclosures without derating below full power. |
| ESD immunity | 30 kV HBM (contact & air) - exceeds IEC 61000-4-2 Level 4, enabling use in handheld and exposed interface applications. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, M3 suffix (JESD 201 Class 2 whisker resistant). Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during transient events. |
| Cathode | High-side protected-line terminal | Connected to line being protected (e.g., 54 V rail); blocks reverse current until VBR exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| Peak pulse power rating | 5000 W (10/1000 μs) - enables single-device protection against severe industrial switching surges without cascaded TVS stages. |
| Clamping ratio (VC/VBR) | ~1.45 (87.1 V / 60.0 V) - low ratio ensures minimal overvoltage overshoot during fast transients, critical for 3.3 V/5 V logic interfaces. |
| Response time | <1 ps - intrinsic semiconductor response eliminates delay-related failure modes in high-speed data line protection. |
| Thermal resistance junction-to-mount | 4.0 °C/W - allows efficient heat transfer to PCB copper pour, supporting sustained surge duty cycles in compact layouts. |
| Flammability rating | UL 94 V-0 molding compound - meets safety requirements for enclosed power electronics and industrial control cabinets. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) Inputs |
|---|---|
|
Use Scenario: Protecting 48–60 V DC input rails in programmable logic controllers (PLCs) and motor drives from inductive kickback and load dump. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed directly at connector entry point, shunting surge energy to chassis ground. Use Value: Withstands 57.4 A (10/1000 μs) and 354 A (8/20 μs) surges while limiting voltage to ≤87.1 V - preserving MOSFET gate oxide integrity and MCU I/O tolerance. |
Use Scenario: Safeguarding LIN bus and sensor analog inputs (e.g., temperature, pressure) in BCMs against battery transients and ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on each protected line, leveraging 54 V VWM to avoid false triggering during normal 12 V/24 V system operation. Use Value: 1.0 μA leakage at VWM prevents signal offset drift; 30 kV ESD rating ensures reliability in assembly and field handling without additional shielding. |
| Telecom DC Power Feeds | Consumer Appliance Motor Driver Circuits |
|
Use Scenario: Securing -48 V telecom power distribution boards against lightning-induced surges on outdoor cabinet feeds. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk DC input, coordinated with upstream fusing and secondary filtering. Use Value: 5000 W peak power rating handles multi-kA 8/20 μs surges per IEC 61000-4-5; UL 497B recognition validates safety compliance for telecom infrastructure. |
Use Scenario: Shielding microcontroller GPIOs and half-bridge gate drivers in smart washing machines and HVAC blowers from motor commutation spikes. IC Role / Device Role / Timing Role: Localized TVS at motor driver IC supply pins and feedback signal paths, minimizing trace inductance in clamping loop. Use Value: SMC package provides 2.90–3.20 mm body height for automated optical inspection; M3 finish ensures solder joint reliability in high-vibration appliance environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54A-M3/5A | Lower PPPM (600 W), SMB package (smaller footprint, higher RthJA = 110 °C/W), same VWM/VBR range. | Best suited for space-constrained, lower-energy surge environments (e.g., USB port protection), not industrial 5 kV surge zones. | Select when board area is critical and surge threat level is limited to IEC 61000-4-4 Level 3 (1 kV). |
| SMC5K54CA-M3/H | Bi-directional variant; identical VWM/VBR/PPPM but symmetric clamping for AC-coupled or floating lines. | Required for differential signal lines (e.g., RS-485, CAN) where polarity reversal may occur; unsuitable for DC-biased rails. | Choose only if protecting bidirectional or AC signals; otherwise, unidirectional SMC5K54A-M3/H offers tighter leakage and lower cost. |
Compared with SMBJ54A-M3/5A and SMC5K54CA-M3/H, the SMC5K54A-M3/H uniquely balances 5000 W surge capacity, industrial-grade thermal performance (RthJM = 4.0 °C/W), and unidirectional precision for DC power rail protection - making it optimal for high-reliability 48–60 V systems where layout space permits SMC packaging.
Availability
SMC5K54A-M3/H is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure, automotive body electronics, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for SMC5K54A-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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and ruggedized packaging.
The SMC5K54A-M3/H belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for industrial and telecom applications demanding robust, standardized surge immunity without complex external circuitry.
FAQ
What is the maximum clamping voltage of the SMC5K54A-M3/H under a 10/1000 μs surge?
The SMC5K54A-M3/H clamps to a maximum of 87.1 V when subjected to its rated peak pulse current of 57.4 A under the standard 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 87742, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during such transients. Designers must ensure downstream components tolerate this clamped voltage plus any trace inductance overshoot.
Is the SMC5K54A-M3/H AEC-Q101 qualified?
No, the SMC5K54A-M3/H is not AEC-Q101 qualified. Per the Vishay datasheet, AEC-Q101 qualification applies only to the SMC5K10A through SMC5K20A variants with HM3 suffix (e.g., SMC5K20AHM3_A/H). The SMC5K54A-M3/H is designated for industrial-grade applications and carries no automotive qualification - it must be validated separately for automotive use cases.
What does the "M3/H" suffix indicate in SMC5K54A-M3/H?
The "M3" suffix denotes halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance. The "H" indicates packaging in 7-inch plastic tape-and-reel format with 850 units per reel. This ordering code (SMC5K54A-M3/H) is the preferred industry-standard configuration for automated SMT assembly and traceable procurement.
Can the SMC5K54A-M3/H be used for bidirectional signal line protection?
No - the SMC5K54A-M3/H is strictly unidirectional and intended for DC-biased lines. For bidirectional protection (e.g., RS-485, CAN, or AC-coupled interfaces), the bi-directional variant SMC5K54CA-M3/H must be used. Using the unidirectional SMC5K54A-M3/H on floating or AC signals risks reverse breakdown and permanent damage during negative transients.
What is the thermal resistance junction-to-ambient (RthJA) for SMC5K54A-M3/H on a standard FR4 PCB?
The thermal resistance junction-to-ambient (RthJA) for SMC5K54A-M3/H is 90 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A test conditions (2 oz. copper, standard footprint). This value assumes typical PCB layout practices; actual thermal performance improves significantly with added copper pour or thermal vias, especially given its low RthJM of 4.0 °C/W to the mounting pad.
SMC5K54A-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:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC5K54A-M3/H FAQ
1.How can I place an order for SMC5K54A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K54A-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 SMC5K54A-M3/H reliable?
The price and inventory of SMC5K54A-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 SMC5K54A-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K54A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K54A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K54A-M3/H?
SMC5K54A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K54A-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 SMC5K54A-M3/H?
For technical support, including SMC5K54A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K54A-M3/H requirements.
6.How does Aetrix verify that SMC5K54A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K54A-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 SMC5K54A-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K54A-M3/H?
All SMC5K54A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K54A-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 SMC5K54A-M3/H part is unused and in its original packaging.
Return procedure for SMC5K54A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K54A-M3/H Tags
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