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Vishay General Semiconductor - Diodes Division SMC5K14AHM3_A/I
- Part No.:
- SMC5K14AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K14AHM3_A/I.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,679
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Product details
Overview
SMC5K14AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features 15.6 V to 17.2 V breakdown voltage (VBR), 14 V stand-off voltage (VWM), 23.2 V clamping voltage at 216 A (10/1000 μs), 5000 W peak pulse power, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMC5K14AHM3_A/I datasheet, SMC5K14AHM3_A/I pinout, SMC5K14AHM3_A/I application, or SMC5K14AHM3_A/I equivalent, this device is selected for robust overvoltage protection in automotive ECUs, industrial sensor interfaces, and telecom power rails where fast response (<1 ns), low clamping ratio, and MSL Level 1 reflow compatibility are critical.
Technical Context
The SMC5K14AHM3_A/I operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (15.6–17.2 V), clamping transients to ≤23.2 V at 216 A (10/1000 μs) with <1 ns response time. Its low incremental surge resistance ensures minimal voltage overshoot during high-current surges.
Designed for surface-mount assembly on FR4 PCBs, it meets J-STD-020 MSL Level 1 (260 °C peak), JESD 201 Class 2 whisker resistance, and IEC 61000-4-2 ESD immunity up to 30 kV (contact/air). Thermal resistance is 90 °C/W (junction-to-ambient) and 4.0 °C/W (junction-to-mount).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.6 V / 17.2 V - defines minimum and maximum voltage at which avalanche conduction begins under 1 mA test current |
| VWM | 14 V - maximum continuous reverse operating voltage before leakage exceeds 2 μA |
| VC @ IPPM | 23.2 V at 216 A (10/1000 μs) - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 5000 W - peak transient power dissipation capability with standard 10/1000 μs waveform |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| ESD Rating | 30 kV per IEC 61000-4-2 (HBM contact/air) - protects against human-body-model electrostatic discharge events |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, halogen-free and RoHS-compliant. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / reference node for unidirectional clamping | Connected to ground or low-side return in typical TVS configuration; enables reverse-biased operation across protected line |
| Cathode | Clamping node / surge current sink | Connected to protected line (e.g., 12 V rail or CAN-H); conducts surge current to ground when VLINE > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Supports high-energy transients from load dump or inductive switching without failure |
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow assembly without popcorn or delamination risk |
| Low clamping voltage (23.2 V @ 216 A) | Minimizes stress on downstream ICs like microcontrollers or transceivers during surge events |
| 30 kV ESD immunity (IEC 61000-4-2) | Provides system-level ESD robustness without requiring additional discrete protection stages |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control units (ECUs) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and local regulator input. Use Value: Clamps transients to ≤23.2 V, preserving LDO and MCU functionality during 100 V/50 ms load dump events. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Reverse-biased clamp on 4–20 mA loop or 0–10 V output line. Use Value: Limits induced surges from nearby motor drives to sub-25 V, preventing ADC saturation and sensor damage. |
| Telecom DC Power Input Protection | Automotive CAN Transceiver Protection |
Use Scenario: Front-end surge suppression on -48 V or +24 V telecom power inputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary unidirectional TVS on DC input before DC/DC converter stage. Use Value: Absorbs 5 kW pulses (8/20 μs) up to 1333 A, maintaining upstream rectifier and filter integrity. | Use Scenario: Protecting CAN-H and CAN-L lines in vehicle infotainment gateways against ESD and coupled transients. IC Role / Device Role / Timing Role: Paired unidirectional TVS devices on each differential line, referenced to chassis ground. Use Value: Clamps ESD events to <25 V within nanoseconds, ensuring CAN physical layer remains functional per ISO 11898-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A-M3/84A | Lower PPPM (400 W), smaller SMA package, VC = 23.2 V @ 17.3 A | Not AEC-Q101 qualified; limited to consumer/industrial use, not automotive | Select when space-constrained layouts require smaller footprint and surge energy is ≤400 W |
| SMC5K14A-M3/I | Same electrical specs and SMC package, but lacks AEC-Q101 qualification and HM3 whisker rating | Approved for industrial grade only (per datasheet note); not rated for automotive under-hood use | Select for cost-sensitive industrial designs where automotive qualification is unnecessary |
Compared with SMC5K14AHM3_A/I, SMAJ14A-M3/84A offers lower surge capacity in a smaller package but no automotive qualification, while SMC5K14A-M3/I matches performance but omits AEC-Q101 and enhanced whisker resistance-making SMC5K14AHM3_A/I the sole choice for production automotive systems requiring full compliance.
Availability
SMC5K14AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and telecom DC power input protection requiring stable component supply across long production lifecycles.
Supply support for SMC5K14AHM3_A/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMC5K14AHM3_A/I belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for demanding transient suppression in automotive, industrial, and telecom infrastructure where robustness and repeatable clamping performance are mandatory.
FAQ
What is the breakdown voltage range of the SMC5K14AHM3_A/I?
The SMC5K14AHM3_A/I has a specified breakdown voltage (VBR) range of 15.6 V to 17.2 V at 1.0 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent avalanche initiation across production lots and temperature extremes, directly supporting its use in 12 V automotive systems where precise clamping onset is critical for protecting downstream regulators and microcontrollers.
Is the SMC5K14AHM3_A/I qualified for automotive applications?
Yes, the SMC5K14AHM3_A/I is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 09-Jan-2024 (Document Number: 87742). The "HM3" suffix explicitly denotes AEC-Q101 qualification, halogen-free composition, RoHS compliance, and JESD 201 Class 2 whisker resistance-making SMC5K14AHM3_A/I suitable for under-hood and body-control module applications in production vehicles.
What is the maximum clamping voltage of the SMC5K14AHM3_A/I under surge conditions?
The SMC5K14AHM3_A/I exhibits a maximum clamping voltage (VC) of 23.2 V at 216 A using the 10/1000 μs waveform, and 30.0 V at 1333 A using the 8/20 μs waveform. These values are measured per standardized test conditions and define the upper voltage limit imposed on protected circuits during transient events-enabling reliable design margining for 12 V systems with 25 V-rated downstream components.
Does the SMC5K14AHM3_A/I meet industry-standard ESD immunity requirements?
Yes, the SMC5K14AHM3_A/I meets IEC 61000-4-2 ESD immunity requirements with a rating of 30 kV for both contact and air discharge modes. This performance is verified per the Vishay datasheet and enables system-level ESD protection without supplemental components, particularly valuable in automotive infotainment and industrial HMI interfaces where user-accessible ports require robust static discharge handling.
What packaging and reel options are available for the SMC5K14AHM3_A/I?
The SMC5K14AHM3_A/I is supplied in 13-inch diameter plastic tape and reel format with a base quantity of 3500 units per reel (ordering code suffix "I"). It uses the SMC (DO-214AB) package with matte tin-plated leads, complies with J-STD-002 solderability, and is rated MSL Level 1 for lead-free reflow-ensuring compatibility with high-volume SMT assembly lines without moisture sensitivity concerns.
SMC5K14AHM3_A/I 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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 216A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMC5K14AHM3_A/I FAQ
1.How can I place an order for SMC5K14AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K14AHM3_A/I 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 SMC5K14AHM3_A/I reliable?
The price and inventory of SMC5K14AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMC5K14AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMC5K14AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K14AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K14AHM3_A/I?
SMC5K14AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K14AHM3_A/I 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 SMC5K14AHM3_A/I?
For technical support, including SMC5K14AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K14AHM3_A/I requirements.
6.How does Aetrix verify that SMC5K14AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMC5K14AHM3_A/I 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 SMC5K14AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMC5K14AHM3_A/I?
All SMC5K14AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K14AHM3_A/I, 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 SMC5K14AHM3_A/I part is unused and in its original packaging.
Return procedure for SMC5K14AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K14AHM3_A/I Tags
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