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Vishay General Semiconductor - Diodes Division SMC5K17CA-M3/H
- Part No.:
- SMC5K17CA-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K17CA-M3/H.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,700
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Product details
Overview
SMC5K17CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, designed for high-energy surge protection with 5000 W peak pulse power (10/1000 μs), 18.9–20.9 V breakdown voltage, and 27.6 V clamping voltage at 181 A. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics.
For engineers reviewing the SMC5K17CA-M3/H datasheet, SMC5K17CA-M3/H pinout, SMC5K17CA-M3/H application, or SMC5K17CA-M3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 175 °C max junction temperature, low incremental surge resistance, and UL 497B safety recognition.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector with symmetrical bidirectional conduction-no cathode band marking. Its silicon avalanche structure delivers sub-nanosecond response to transients induced by inductive switching or lightning surges.
It is rated for 5000 W (10/1000 μs) and 40 kW (8/20 μs) peak pulse power, with thermal resistance of 90 °C/W (junction-to-ambient) and 4.0 °C/W (junction-to-mount), enabling robust operation under repeated surge stress in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 18.9–20.9 V at 1.0 mA test current - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| Stand-off Voltage (VWM) | 17 V - maximum continuous reverse operating voltage before leakage exceeds 2.0 µA |
| Clamping Voltage (VC) | 27.6 V at 181 A (10/1000 μs) - limits protected circuit voltage during worst-case surge |
| Peak Pulse Power (PPPM) | 5000 W (10/1000 μs) - supports high-energy transient suppression without thermal runaway |
| Junction Temperature Range | –55 to +175 °C - enables deployment in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD immunity |
| UL Recognition | UL 497B (E136766) - certified for primary/secondary circuit protection in safety-critical systems |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C reflow peak), matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bidirectional) | Surge current path | No polarity marking; symmetric terminals conduct equally in both directions during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 40 kW peak pulse rating (8/20 μs) | Withstands telecom-grade lightning surges per IEC 61000-4-5 without degradation |
| 30 kV ESD immunity (IEC 61000-4-2) | Eliminates need for additional ESD protection on board-level interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving system-level robustness |
| 175 °C max junction temperature | Supports high ambient operation in engine control units and motor drives without derating |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protection of 12 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS device clamping voltage spikes before they reach microcontroller power rails or CAN transceivers. Use Value: Prevents latch-up or permanent damage to AEC-Q100 qualified ICs during ISO 7637-2 Pulse 5a events. |
Use Scenario: Guarding analog outputs of pressure/temperature sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp on ±10 V or 4–20 mA signal paths exposed to field wiring surges. Use Value: Maintains signal integrity below 27.6 V clamping level while surviving repeated 1 kV/500 A surge tests. |
| Telecom DC Power Feeds | Consumer Appliance Motor Controls |
Use Scenario: Input-stage protection on PoE-powered network switches and base stations. IC Role / Device Role / Timing Role: Primary surge suppressor on 48 V DC input rails upstream of DC/DC converters. Use Value: Absorbs 40 kW (8/20 μs) lightning-induced surges per IEC 61000-4-5 Level 4 without failure. |
Use Scenario: Protection of gate drivers and MCU I/O in washing machine motor inverters. IC Role / Device Role / Timing Role: Clamp induced transients from brush commutation and relay switching on control PCBs. Use Value: Withstands 5000 W (10/1000 μs) pulses while maintaining <2.0 µA leakage at 17 V standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17CA-E3/52 | Lower peak pulse power (600 W), SMB package (smaller footprint, higher RthJA = 110 °C/W) | Suitable only for lower-energy transients; not AEC-Q101 qualified | Select when space-constrained and surge energy ≤600 W suffices |
| SMCJ17CAHE3/73 | Same SMC package, identical VBR/VC, but HM3 suffix indicates AEC-Q101 + enhanced whisker resistance | Identical electrical performance; preferred for automotive production requiring extended reliability validation | Select when full AEC-Q101 compliance documentation and JESD201 Class 2 whisker testing are mandatory |
Compared with SMC5K17CA-M3/H, SMBJ17CA-E3/52 offers reduced surge handling and no automotive qualification, while SMCJ17CAHE3/73 matches all electrical specs but adds traceable AEC-Q101 process controls-making it a drop-in upgrade for Tier 1 automotive BOMs.
Availability
SMC5K17CA-M3/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, and telecom DC feed applications requiring stable component supply across long production lifecycles.
Supply support for SMC5K17CA-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-power, and automotive-qualified components.
The SMC5KxxCA family targets high-energy transient suppression in harsh environments, delivering 5 kW surge capability in industry-standard SMC packages for automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the SMC5K17CA-M3/H at its rated peak pulse current?
The SMC5K17CA-M3/H has a maximum clamping voltage (VC) of 27.6 V at 181 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions and ensures downstream circuitry remains below critical overvoltage thresholds during surge events. The SMC5K17CA-M3/H maintains this clamping performance across its full operating temperature range.
Is the SMC5K17CA-M3/H suitable for automotive applications?
Yes, the SMC5K17CA-M3/H is AEC-Q101 qualified and UL 497B recognized, making it suitable for automotive powertrain, body electronics, and ADAS modules. Its –55 to +175 °C junction temperature range, MSL Level 1 moisture sensitivity, and 30 kV ESD immunity align with automotive environmental and reliability requirements. The SMC5K17CA-M3/H is commonly used in engine control units and battery management systems.
What does the "-M3/H" suffix indicate in SMC5K17CA-M3/H?
The "-M3" suffix denotes halogen-free, RoHS-compliant, industrial-grade construction with JESD201 Class 2 whisker resistance. The "/H" indicates packaging in 7-inch plastic tape and reel with 850 units per reel. This configuration ensures compatibility with standard SMT pick-and-place equipment and meets IPC/JEDEC handling standards. The SMC5K17CA-M3/H is optimized for high-volume automated assembly.
How does the SMC5K17CA-M3/H compare to unidirectional TVS diodes in circuit design?
The SMC5K17CA-M3/H is bidirectional and requires no polarity marking-ideal for protecting AC-coupled, differential, or floating signal paths where voltage polarity reversal may occur. Unlike unidirectional TVS diodes, it clamps both positive and negative transients symmetrically. The SMC5K17CA-M3/H eliminates layout errors from incorrect orientation and simplifies BOM management in mixed-signal systems.
What is the thermal resistance specification for the SMC5K17CA-M3/H?
The SMC5K17CA-M3/H has a junction-to-ambient thermal resistance (RthJA) of 90 °C/W and junction-to-mount thermal resistance (RthJM) of 4.0 °C/W, measured per JEDEC standards on FR4 PCB with standard 2 oz copper footprint. These values enable accurate thermal modeling in high-power surge scenarios. The SMC5K17CA-M3/H's low RthJM supports effective heat transfer to heatsinked mounting pads.
SMC5K17CA-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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 181A
- 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)
SMC5K17CA-M3/H FAQ
1.How can I place an order for SMC5K17CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K17CA-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 SMC5K17CA-M3/H reliable?
The price and inventory of SMC5K17CA-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 SMC5K17CA-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K17CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K17CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K17CA-M3/H?
SMC5K17CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K17CA-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 SMC5K17CA-M3/H?
For technical support, including SMC5K17CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K17CA-M3/H requirements.
6.How does Aetrix verify that SMC5K17CA-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K17CA-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 SMC5K17CA-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K17CA-M3/H?
All SMC5K17CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K17CA-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 SMC5K17CA-M3/H part is unused and in its original packaging.
Return procedure for SMC5K17CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K17CA-M3/H Tags
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