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Vishay General Semiconductor - Diodes Division SMC5K75CA-M3/H
- Part No.:
- SMC5K75CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K75CA-M3/H.pdf
- Description:
- TVS DIODE 75VWM 121VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:831
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Product details
Overview
SMC5K75CA-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 with 75 V standoff voltage, 121 V clamping voltage at 41.3 A (10/1000 μs), and 5000 W peak pulse power rating. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against lightning-induced transients and inductive switching spikes.
For engineers reviewing the SMC5K75CA-M3/H datasheet, SMC5K75CA-M3/H pinout, SMC5K75CA-M3/H application, or SMC5K75CA-M3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance values, junction capacitance behavior, and real-world clamping performance under standardized 10/1000 μs and 8/20 μs waveforms.
Technical Context
This TVS operates as a voltage-clamped shunt protector with bidirectional conduction, triggered when reverse or forward transient voltage exceeds its 83.3–92.1 V breakdown range at 1 mA test current. Its low incremental surge resistance ensures minimal voltage overshoot during fast-rising transients up to 30 kV ESD (IEC 61000-4-2 contact/air mode).
Thermally, it sustains operation from –55 °C to +175 °C junction temperature, with RthJA = 90 °C/W on FR4 PCB and RthJM = 4.0 °C/W to mounting pad - enabling reliable derating above 25 °C ambient per Fig.2. The device meets MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 75 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| Breakdown Voltage (VBR) | 83.3–92.1 V at 1 mA - precise voltage threshold where avalanche conduction initiates; tight tolerance supports predictable protection onset. |
| Clamping Voltage (VC) | 121 V at 41.3 A (10/1000 μs) - peak voltage seen by protected circuit during worst-case surge; enables robust I/O interface survival. |
| Peak Pulse Power (PPPM) | 5000 W (10/1000 μs) - energy-handling capacity for standard lightning-surge waveform; validates suitability for IEC 61000-4-5 Level 4 compliance designs. |
| Junction Temperature Range | –55 °C to +175 °C - extended thermal envelope supports under-hood automotive and high-temperature industrial environments without derating loss. |
| ESD Immunity | 30 kV HBM (contact & air) - exceeds IEC 61000-4-2 Level 4, eliminating need for additional discrete ESD stages on exposed ports. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.11 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place and reflow. |
Pinout & Package
SMC5K75CA-M3/H uses a two-terminal SMC (DO-214AB) package with no polarity marking for bidirectional operation. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD22-B102, and qualified to JESD201 Class 2 for whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path | Either terminal conducts during overvoltage events in either polarity; eliminates orientation constraints during PCB layout. |
| Cathode Band (absent) | Polarity indicator | Not present - confirms bidirectional functionality; prevents incorrect placement assumptions during assembly. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias HAST, and mechanical shock - required for engine control, ADAS, and body electronics. |
| UL 497B recognition (E136766) | Meets safety standards for telecom and industrial signal-line protection; enables system-level UL certification without additional isolation components. |
| Low Rsurge (incremental) | Minimizes voltage overshoot during fast transients (<1 ns rise time), reducing stress on downstream MOSFET gates and logic inputs. |
| Halogen-free, RoHS-compliant (M3 suffix) | Complies with environmental regulations for global OEM supply chains; no brominated flame retardants or lead in molding compound or terminations. |
| MSL Level 1 (260 °C peak) | Allows single-reflow processing without moisture sensitivity concerns - eliminates baking steps and reduces manufacturing cost. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails feeding ECUs, lighting modules, and motor drivers from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed at power entry point to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: Withstands 5000 W pulses and operates up to +175 °C, ensuring uninterrupted function in under-hood environments subject to ISO 7637-2 Pulse 5a. |
Use Scenario: Guarding analog outputs (4–20 mA, 0–10 V) and digital interfaces (CAN, LIN) of pressure, temperature, and position sensors in factory automation. IC Role / Device Role / Timing Role: Bidirectional clamping element across signal and return lines to suppress EFT bursts and ESD events without distorting low-voltage signals. Use Value: 121 V clamping at 41.3 A and 30 kV ESD immunity prevent latch-up or damage to precision ADC front-ends and isolated signal conditioners. |
| Telecom Interface Protection | Consumer Power Adapter Inputs |
Use Scenario: Safeguarding Ethernet PHYs, DSL line drivers, and PoE injectors against induced surges from nearby AC mains or lightning coupling. IC Role / Device Role / Timing Role: Primary surge suppression stage upstream of GDT or polymer PTC, absorbing bulk energy before secondary protection activates. Use Value: 40 kW capability at 8/20 μs enables compliance with ITU-T K.20/K.21 and GR-1089-CORE telecom surge standards. |
Use Scenario: Input-stage protection for AC-DC adapters and USB PD chargers subjected to differential-mode surges during plug-in/out and grid fluctuations. IC Role / Device Role / Timing Role: Fast-response TVS placed across bridge rectifier output to clamp overvoltage before bulk capacitor and primary-side controller. Use Value: 75 V VWM provides sufficient margin above 53 V peak rectified voltage while maintaining low leakage (<1 μA) at room temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ75CA | Same 75 V VWM, but lower PPPM = 400 W; SMC package identical; clamping voltage 121 V at 27.5 A (10/1000 μs). | Rated for lower-energy transients only; unsuitable for ISO 7637-2 Pulse 5 or IEC 61000-4-5 Level 4. | Select SMC5K75CA-M3/H when >10× higher surge energy handling is required - e.g., automotive power rail or industrial AC input protection. |
| ON Semiconductor 1.5KE75CA | Higher PPPM = 1500 W, DO-201 package (larger footprint); clamping voltage 121 V at 12.4 A (10/1000 μs); not AEC-Q101 qualified. | Through-hole mounting only; lacks automotive qualification and MSL Level 1 reflow compatibility. | Choose SMC5K75CA-M3/H for surface-mount production, AEC-Q101 compliance, and space-constrained PCBs requiring 5000 W capability. |
Compared with SMAJ75CA and 1.5KE75CA, SMC5K75CA-M3/H uniquely combines 5000 W surge rating, AEC-Q101 qualification, SMC package, and MSL Level 1 - making it the only option among the three validated for high-reliability automotive and industrial surface-mount surge protection.
Availability
SMC5K75CA-M3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom infrastructure, and consumer power adapter designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SMC5K75CA-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, efficiency, and application-specific performance.
The SMC5KxxCA series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage range of the SMC5K75CA-M3/H?
The SMC5K75CA-M3/H has a specified breakdown voltage (VBR) range of 83.3 V to 92.1 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping onset across production lots and supports precise coordination with downstream overvoltage protection circuits in the SMC5K75CA-M3/H design.
Is the SMC5K75CA-M3/H suitable for automotive applications?
Yes, the SMC5K75CA-M3/H is AEC-Q101 qualified and rated for operation from –55 °C to +175 °C, making it suitable for under-hood and chassis-mounted automotive electronics. Its 5000 W peak pulse power and 30 kV ESD immunity meet requirements for protecting ECUs, ADAS sensors, and power distribution modules in the SMC5K75CA-M3/H application space.
What does the "M3/H" suffix indicate in SMC5K75CA-M3/H?
The "M3" suffix denotes halogen-free, RoHS-compliant construction with industrial-grade qualification and JESD201 Class 2 whisker resistance. The "/H" indicates packaging in 7-inch plastic tape and reel with 850 units per reel - a standard delivery format for SMC5K75CA-M3/H used in high-volume SMT assembly lines.
How does the clamping voltage of SMC5K75CA-M3/H compare between 10/1000 μs and 8/20 μs waveforms?
At 10/1000 μs, the SMC5K75CA-M3/H clamps to 121 V at 41.3 A; at 8/20 μs, it clamps to 157 V at 255 A. The higher voltage under the shorter, more aggressive 8/20 μs waveform reflects greater instantaneous power dissipation - confirming the SMC5K75CA-M3/H's ability to handle both lightning-like and EFT-type transients per IEC 61000-4-5 and -4-4.
Does the SMC5K75CA-M3/H require a heatsink for standard operation?
No external heatsink is required for the SMC5K75CA-M3/H under typical surge conditions, as its RthJA = 90 °C/W and RthJM = 4.0 °C/W enable adequate thermal dissipation through standard PCB copper. However, for repetitive surge events or elevated ambient temperatures (>85 °C), increasing copper area under the SMC5K75CA-M3/H cathode/anode pads improves long-term reliability.
SMC5K75CA-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):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 41.3A
- 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)
SMC5K75CA-M3/H FAQ
1.How can I place an order for SMC5K75CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K75CA-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 SMC5K75CA-M3/H reliable?
The price and inventory of SMC5K75CA-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 SMC5K75CA-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K75CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K75CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K75CA-M3/H?
SMC5K75CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K75CA-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 SMC5K75CA-M3/H?
For technical support, including SMC5K75CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K75CA-M3/H requirements.
6.How does Aetrix verify that SMC5K75CA-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K75CA-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 SMC5K75CA-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K75CA-M3/H?
All SMC5K75CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K75CA-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 SMC5K75CA-M3/H part is unused and in its original packaging.
Return procedure for SMC5K75CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K75CA-M3/H Tags
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