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Vishay General Semiconductor - Diodes Division SMC5K16A-M3/H
- Part No.:
- SMC5K16A-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K16A-M3/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,680
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Product details
Overview
SMC5K16A-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 16 V standoff voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 26.0 V clamping voltage at 192 A (10/1000 μs), 5000 W peak pulse power, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMC5K16A-M3/H datasheet, SMC5K16A-M3/H pinout, SMC5K16A-M3/H application, or SMC5K16A-M3/H equivalent, this device is selected for high-energy surge suppression on power rails and signal lines where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.63), and MSL Level 1 reflow compatibility are critical in automotive, industrial, and telecom systems.
Technical Context
This TVS operates as a voltage-clamped shunt protector triggered by reverse-biased avalanche breakdown. Its unidirectional polarity enables protection of DC-biased lines without forward conduction during normal operation. The 5000 W (10/1000 μs) rating reflects energy-handling capability under standardized surge waveforms, with thermal resistance RthJA = 90 °C/W ensuring stable junction temperature under repetitive transients.
Clamping performance is defined by VC = 26.0 V at IPPM = 192 A (10/1000 μs) and VC = 34.4 V at IPPM = 1163 A (8/20 μs), indicating strong surge absorption across waveform profiles. The device meets IEC 61000-4-2 ESD immunity up to 30 kV (contact/air), and its halogen-free, RoHS-compliant M3 suffix satisfies modern environmental and reliability requirements including JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit's DC bias. |
| VBR (min/max) | 17.8 V / 19.7 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 26.0 V at 192 A (10/1000 μs) - Clamped voltage seen by downstream circuit during worst-case surge; limits stress on ICs/MOSFETs. |
| PPPM | 5000 W - Peak pulse power handling per 10/1000 μs waveform; defines single-event surge energy capacity. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| ESD Rating | 30 kV HBM (contact/air) - Withstands electrostatic discharge events per IEC 61000-4-2, reducing need for additional ESD stages. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.11 mm × 6.22 mm footprint; optimized for automated assembly and thermal dissipation. |
Pinout & Package
SMC5K16A-M3/H uses the standard SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, cathode indicated by a color band. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H), with recommended PCB pad layout per Vishay spec.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to protected line's lower-potential side (e.g., GND or return path); completes shunt path during overvoltage. |
| Cathode | Current exit terminal during clamping | Connected to protected line's higher-potential side (e.g., VCC or signal rail); reverse-biased under normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Protects DC-biased lines without forward conduction; avoids interference with normal signal/power flow. |
| 5000 W peak pulse power (10/1000 μs) | Handles high-energy transients from inductive switching (e.g., solenoids, motors) without degradation. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensors requiring extended temperature and life-cycle reliability. |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free reflow soldering without preconditioning; eliminates moisture-related popcorning risk. |
| Halogen-free & RoHS-compliant (M3 suffix) | Fulfills environmental compliance mandates for global OEMs and industrial equipment manufacturers. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Shunt TVS placed between VBAT and GND to clamp surges above 26.0 V before reaching MCU or CAN transceivers. Use Value: Prevents latch-up or permanent damage to automotive-grade microcontrollers operating at 150 °C junction temperature. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors. IC Role / Device Role / Timing Role: Unidirectional TVS connected across signal and return paths to absorb ESD and switching noise. Use Value: Maintains signal integrity with <1 ns response time and 30 kV ESD immunity, eliminating false triggers in PLC inputs. |
| Telecom DC Power Input Protection | Computer Peripheral USB VBUS Protection |
Use Scenario: Securing -48 V DC input of telecom base station power modules against lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on input stage, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs 5000 W pulses without failure, enabling compliance with ITU-T K.20 and GR-1089-CORE standards. |
Use Scenario: Adding robust overvoltage defense to USB 2.0/3.0 host ports against hot-plug and adapter faults. IC Role / Device Role / Timing Role: TVS placed between VBUS and GND to clamp transients before USB controller ICs. Use Value: Limits VBUS excursion to ≤26.0 V during 10/1000 μs surges, preserving USB PHY functionality and enumeration stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-M3/87A | Lower PPPM (600 W), SMB package (smaller footprint, higher RthJA = 110 °C/W), same VWM/VBR range. | Suitable for space-constrained consumer electronics but not for automotive load-dump duty cycles. | Select when board area is critical and surge energy is ≤600 W; verify thermal margin at 150 °C ambient. |
| SMC5K16CA-M3/H | Bi-directional variant; identical VWM/VBR/VC specs but clamps both polarities; same SMC package and AEC-Q101 rating. | Required for AC-coupled or bidirectional signal lines (e.g., RS-485, CAN FD) where negative transients occur. | Choose only if protection against reverse-polarity surges is needed; otherwise, unidirectional SMC5K16A-M3/H offers lower leakage and tighter clamping. |
Compared with SMBJ16A-M3/87A and SMC5K16CA-M3/H, the SMC5K16A-M3/H delivers 8.3× higher surge energy handling than SMBJ16A while maintaining automotive qualification, and provides 12% lower clamping voltage than its bi-directional counterpart-making it optimal for high-reliability unidirectional DC rail protection.
Availability
SMC5K16A-M3/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for SMC5K16A-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The SMC5K16A-M3/H belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments where clamping precision, surge endurance, and qualification-grade reliability are mandatory.
FAQ
What is the maximum clamping voltage of the SMC5K16A-M3/H under a 10/1000 μs surge?
The SMC5K16A-M3/H has a maximum clamping voltage (VC) of 26.0 V when subjected to a 192 A peak pulse current with a 10/1000 μs waveform. This value is measured per Figure 3 in the Vishay datasheet (Doc. #87742, Rev. 09-Jan-2024) and represents the upper voltage limit imposed on protected circuitry during standardized surge events. The SMC5K16A-M3/H maintains this clamping performance across its full operating temperature range.
Is the SMC5K16A-M3/H qualified for automotive applications?
Yes, the SMC5K16A-M3/H is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Section "FEATURES", page 1). This qualification applies to the HM3 suffix variants; however, the M3/H suffix indicates halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance, and Vishay explicitly states AEC-Q101 qualification for SMC5K10A through SMC5K20A types-including SMC5K16A-regardless of M3 or HM3 suffix in ordering examples. The SMC5K16A-M3/H is therefore approved for automotive use.
What does the "-M3/H" suffix mean in SMC5K16A-M3/H?
The "-M3" suffix denotes halogen-free, RoHS-compliant construction meeting JESD 201 Class 2 whisker resistance requirements, while "/H" specifies packaging in 7-inch plastic tape and reel with 850 units per reel. This ordering code appears in Vishay's official Ordering Information table (page 3, Doc. #87742) and confirms the device's compliance with environmental and assembly standards required for modern electronics manufacturing. The SMC5K16A-M3/H is fully compatible with lead-free reflow processes up to 260 °C.
How does the SMC5K16A-M3/H compare to the SMC5K16CA-M3/H?
The SMC5K16A-M3/H is unidirectional, whereas the SMC5K16CA-M3/H is bi-directional-meaning the latter clamps surges of either polarity, while the former only protects against positive transients relative to ground. Both share identical VWM (16 V), VBR (17.8–19.7 V), and package (SMC), but the SMC5K16A-M3/H exhibits lower reverse leakage and a slightly lower clamping voltage (26.0 V vs. 26.5 V typical for the CA version). For DC-biased rails, the SMC5K16A-M3/H is preferred; the SMC5K16CA-M3/H is reserved for AC or bidirectional signal lines.
What is the thermal resistance junction-to-ambient (RthJA) for the SMC5K16A-M3/H?
The thermal resistance junction-to-ambient (RthJA) for the SMC5K16A-M3/H is 90 °C/W, as specified in the "THERMAL CHARACTERISTICS" table (page 2, Doc. #87742). This value assumes mounting on a standard FR4 PCB per JEDEC 51-2A with the recommended pad layout. It directly impacts steady-state power derating and must be used with the 150 °C maximum junction temperature to calculate safe continuous power dissipation in thermally constrained layouts. The SMC5K16A-M3/H relies on PCB copper area for heat spreading, not internal heatsinking.
SMC5K16A-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 192.3A
- 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 (SMCJ)
SMC5K16A-M3/H FAQ
1.How can I place an order for SMC5K16A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K16A-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 SMC5K16A-M3/H reliable?
The price and inventory of SMC5K16A-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 SMC5K16A-M3/H is usually 5 days.
3.What payment methods are accepted for SMC5K16A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K16A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K16A-M3/H?
SMC5K16A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K16A-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 SMC5K16A-M3/H?
For technical support, including SMC5K16A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K16A-M3/H requirements.
6.How does Aetrix verify that SMC5K16A-M3/H is sourced from the original manufacturer or authorized distributors?
All SMC5K16A-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 SMC5K16A-M3/H meets industry standards.
7.What is the process for return or replacement of SMC5K16A-M3/H?
All SMC5K16A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K16A-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 SMC5K16A-M3/H part is unused and in its original packaging.
Return procedure for SMC5K16A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K16A-M3/H Tags
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