My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMC5K14AHM3_A/H
- Part No.:
- SMC5K14AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K14AHM3_A/H.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,936
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMC5K14AHM3_A/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 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR) at 1 mA, 23.2 V clamping voltage (VC) at 216 A peak pulse current (IPPM), and 5000 W peak pulse power (10/1000 μs). It is used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power systems.
For engineers reviewing the SMC5K14AHM3_A/H datasheet, SMC5K14AHM3_A/H pinout, SMC5K14AHM3_A/H application, or SMC5K14AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs surges, AEC-Q101 qualification status, unidirectional polarity, thermal resistance (RthJA = 90 °C/W), and compliance with IEC 61000-4-2 ESD (30 kV contact/air).
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within picoseconds to transients induced by inductive load switching or lightning surges. Its low incremental surge resistance and fast response time ensure minimal overshoot during clamping events up to 5000 W.
The device is rated for -55 °C to +150 °C junction temperature, meets MSL Level 1 per J-STD-020, and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification - applicable only to SMC5K10A–SMC5K20A variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - ensures reliable turn-on above system operating voltage with margin |
| VC @ IPPM | 23.2 V at 216 A (10/1000 μs) - defines worst-case voltage seen by protected circuit during surge |
| PPPM | 5000 W (10/1000 μs) - peak transient energy handling capacity under standard waveform |
| TJ max. | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| ESD immunity | 30 kV HBM (contact & air) - exceeds IEC 61000-4-2 for system-level ESD robustness |
| RthJA | 90 °C/W - determines thermal rise on standard FR4 PCB; requires adequate copper area for full power rating |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded epoxy case meeting UL 94 V-0. Cathode indicated by color band; anode and cathode terminals are axially oriented along the body length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction (not used in normal TVS operation) | Connected to lower-potential side of protected line; defines unidirectional polarity orientation |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to higher-potential side (e.g., VBUS or signal line); clamps to this node during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| 5000 W peak pulse power (10/1000 μs) | Supports high-energy surge suppression in 12 V/24 V vehicle electrical systems and industrial PLC I/O |
| Clamping voltage ≤ 23.2 V at 216 A | Ensures downstream 16 V-rated ICs and MOSFETs remain within safe absolute maximum ratings during transients |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free assembly without moisture-related popcorn failure risk |
| Halogen-free & RoHS-compliant (HM3 suffix) | Fulfills environmental compliance requirements for global automotive and industrial OEM supply chains |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V power rails feeding ECUs, lighting modules, and infotainment systems from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND, clamping surges within nanoseconds. Use Value: Limits rail voltage to ≤23.2 V during 216 A transients, preventing latch-up or gate oxide damage in connected PMICs and microcontrollers. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation equipment exposed to relay-induced spikes. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector interface to suppress fast-rising EFT bursts. Use Value: Maintains signal integrity below 100 pF capacitance while clamping 8/20 μs surges to ≤30.0 V, preserving ADC accuracy. |
| Telecom DC Power Input | Consumer Power Adapter Output |
Use Scenario: Input-stage protection for PoE-powered network switches and base station RF modules against lightning-induced surges on 48 V DC feeds. IC Role / Device Role / Timing Role: Primary shunt clamp on DC input, coordinated with upstream fuses and secondary filtering. Use Value: Absorbs 5000 W pulses without degradation, enabling compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) |
Use Scenario: Secondary-side overvoltage safeguard in USB-C PD adapters and laptop chargers to prevent output short-circuit damage. IC Role / Device Role / Timing Role: Fast-response TVS across +VOUT/GND, triggered by feedback loop failure or synchronous rectifier fault. Use Value: Clamps output to 23.2 V before downstream devices exceed 24 V absolute maximum, avoiding catastrophic failure. |
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-M3/87A | Lower PPPM (400 W), SMA package (smaller footprint, higher RthJA = 110 °C/W) | Suitable for space-constrained consumer electronics; not rated for automotive AEC-Q101 | Select when board area is critical and surge energy < 400 W; avoid in automotive or industrial 5000 W requirement |
| SMC5K14A-M3/H | Same electrical specs, identical SMC package, but lacks AEC-Q101 qualification and HM3 whisker testing | Acceptable for industrial-grade designs where automotive qualification is not mandated | Choose for cost-sensitive industrial applications where AEC-Q101 is unnecessary; verify whisker reliability separately |
Compared with SMC5K14A-M3/H and SMAJ14A-M3/87A, the SMC5K14AHM3_A/H delivers certified automotive reliability, superior thermal performance (RthJM = 4.0 °C/W), and guaranteed 5000 W surge handling - making it the only option qualified for under-hood deployment and high-volume automotive BOMs.
Availability
SMC5K14AHM3_A/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom DC inputs, and consumer power adapter outputs requiring stable component supply across long production lifecycles.
Supply support for SMC5K14AHM3_A/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 power MOSFETs with emphasis on reliability and application-specific performance.
The SMC5K14AHM3_A/H belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for automotive and industrial systems demanding AEC-Q101 qualification, high-energy surge immunity, and long-term stability under thermal stress.
FAQ
What is the clamping voltage of SMC5K14AHM3_A/H at its rated peak pulse current?
The SMC5K14AHM3_A/H has a maximum clamping voltage (VC) of 23.2 V at 216 A peak pulse current under the 10/1000 μs waveform. This value is measured per Figure 3 in the datasheet and defines the upper voltage limit imposed on protected circuits during standardized surge events. The SMC5K14AHM3_A/H maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C), ensuring consistent protection in harsh environments.
Is SMC5K14AHM3_A/H qualified to AEC-Q101, and what does that cover?
Yes, the SMC5K14AHM3_A/H is AEC-Q101 qualified - confirmed by the "HM3" suffix per Vishay's ordering nomenclature and documentation. This qualification covers stress tests including HTGB, HTRB, TCT, AC/DC life test, and ESD (HBM/MM), validating suitability for automotive powertrain, chassis, and body electronics. The SMC5K14AHM3_A/H is among the SMC5K10A–SMC5K20A group explicitly listed as AEC-Q101 qualified in the datasheet revision 09-Jan-2024.
What is the meaning of the "_A/H" suffix in SMC5K14AHM3_A/H?
The "_A/H" suffix in SMC5K14AHM3_A/H indicates packaging configuration: "A" denotes tape-and-reel packaging per Vishay's internal revision coding, and "H" specifies a 7-inch diameter reel containing 850 units. This matches the preferred package code "H" shown in the Ordering Information table. The full part number reflects both AEC-Q101 qualification (HM3) and logistics-ready packaging (A/H), distinguishing it from non-qualified variants like SMC5K14A-M3/H.
Does SMC5K14AHM3_A/H meet UL 497B recognition, and what does that imply?
Yes, the SMC5K14AHM3_A/H meets UL 497B recognition with file number E136766, covering transient voltage protection components used in telecommunications and data line applications. This certification validates its safety performance under abnormal overvoltage conditions, including dielectric withstand, flammability (UL 94 V-0), and construction integrity. UL 497B compliance supports use in telecom infrastructure, PoE equipment, and other safety-critical communication interfaces.
How does the thermal resistance of SMC5K14AHM3_A/H affect PCB layout design?
The SMC5K14AHM3_A/H has RthJA = 90 °C/W (JEDEC 51-2A, standard FR4 footprint) and RthJM = 4.0 °C/W (JEDEC 51-14 TDIM method). To sustain full 5000 W pulse capability, the PCB must provide sufficient copper area - typically ≥100 mm² per pad with internal thermal vias - to manage junction-to-ambient rise. Without enhanced copper, derating applies per Figure 2; the SMC5K14AHM3_A/H's low RthJM enables effective heat transfer to metal-core or heatsink-mounted boards in high-reliability applications.
SMC5K14AHM3_A/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):
- 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/H FAQ
1.How can I place an order for SMC5K14AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K14AHM3_A/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 SMC5K14AHM3_A/H reliable?
The price and inventory of SMC5K14AHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for SMC5K14AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K14AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K14AHM3_A/H?
SMC5K14AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K14AHM3_A/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 SMC5K14AHM3_A/H?
For technical support, including SMC5K14AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K14AHM3_A/H requirements.
6.How does Aetrix verify that SMC5K14AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMC5K14AHM3_A/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 SMC5K14AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMC5K14AHM3_A/H?
All SMC5K14AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K14AHM3_A/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 SMC5K14AHM3_A/H part is unused and in its original packaging.
Return procedure for SMC5K14AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K14AHM3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
