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Vishay General Semiconductor - Diodes Division SMC5K16AHM3_A/H
- Part No.:
- SMC5K16AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMC5K16AHM3_A/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,980
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Product details
Overview
SMC5K16AHM3_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 17.8–19.7 V breakdown voltage (VBR), 16 V stand-off voltage (VWM), 26.0 V max clamping voltage at 192 A (10/1000 μs), 5000 W peak pulse power, and AEC-Q101 qualification - deployed on automotive power rails and sensor signal lines.
For engineers reviewing the SMC5K16AHM3_A/H datasheet, SMC5K16AHM3_A/H pinout, SMC5K16AHM3_A/H application, or SMC5K16AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs surges, unidirectional polarity alignment with DC-biased circuits, thermal resistance (RthJA = 90 °C/W), and halogen-free RoHS-compliant construction with M3/HM3 whisker-tested terminations.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (16 V), it transitions from high-impedance to low-impedance state within <1 ps, diverting surge current away from downstream ICs or MOSFETs. Its silicon avalanche structure delivers stable clamping at 26.0 V up to 192 A (10/1000 μs) with low incremental surge resistance.
Designed for automotive-grade reliability, SMC5K16AHM3_A/H meets AEC-Q101 stress tests, supports JEDEC J-STD-020 MSL Level 1 reflow (260 °C peak), and withstands 30 kV ESD per IEC 61000-4-2 (contact/air mode). Junction temperature range spans −55 °C to +150 °C, enabling use in under-hood and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 17.8 V / 19.7 V at 1.0 mA - defines precise avalanche onset threshold for reliable triggering above normal operating voltage |
| VWM | 16 V - maximum continuous reverse voltage before leakage exceeds 2.0 μA, ensuring no false conduction during nominal operation |
| VC @ IPPM | 26.0 V at 192 A (10/1000 μs) - clamping voltage seen by protected circuit during worst-case surge, limiting stress on downstream components |
| PPPM | 5000 W (10/1000 μs) - peak transient energy handling capacity, sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| TJ max | +150 °C - enables operation in high-temperature automotive and industrial enclosures without derating penalties |
| RthJA | 90 °C/W - thermal resistance from junction to ambient on standard FR4 PCB, critical for sustained surge duty cycle planning |
| ESD Rating | ±30 kV HBM - protects against human-body-model electrostatic discharge during handling and assembly |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes current path during clamping event |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail or sensor output); receives transient energy prior to clamping |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Enables integration into DC-biased circuits (e.g., automotive 12 V systems) without forward-conduction interference |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS modules requiring long-term reliability under thermal cycling and vibration |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets global environmental compliance mandates and eliminates corrosive halogen emissions during board reflow or end-of-life incineration |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing at 260 °C peak, simplifying SMT manufacturing flow |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), enhancing protection margin for 3.3 V/5 V logic |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator switching spikes. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, activated within picoseconds upon overvoltage detection. Use Value: Clamps 192 A surge to ≤26.0 V, preventing damage to MCU power supplies and CAN transceivers downstream. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLCs exposed to relay coil kickback. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode tied to signal, anode to ground) suppressing negative-going transients on 0–10 V or 4–20 mA loops. Use Value: Limits induced voltage to 26.0 V while maintaining sub-2 μA leakage at 16 V, preserving sensor accuracy and ADC resolution. |
| Telecom DC Power Input Protection | Consumer Device USB Port ESD Suppression |
|
Use Scenario: Shielding PoE-powered network switches from lightning-induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with upstream MOVs and downstream DC-DC converters. Use Value: Absorbs 5000 W (10/1000 μs) without degradation, sustaining repeated surges while holding clamping voltage below converter OVP threshold. |
Use Scenario: Adding secondary-level ESD protection to USB 2.0 data lines (D+/D−) in smart home hubs after integrated port protection. IC Role / Device Role / Timing Role: Standoff-rated TVS (16 V) placed between data line and ground, triggered only during >30 kV HBM events. Use Value: Provides ±30 kV contact-mode ESD immunity without affecting signal integrity (CJ < 100 pF at 0 V), verified per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-M3/86A | Lower peak pulse power (400 W vs. 5000 W); SMA package (DO-214AC); same VWM/VBR range but lower IPPM (32.4 A) | Suitable for low-energy ESD-only scenarios (e.g., user-interface buttons), not for automotive load dump or industrial surge | Select SMC5K16AHM3_A/H when surge energy exceeds 400 W or AEC-Q101 qualification is mandatory |
| SMCJ16A-HM3 | Same SMC package and AEC-Q101 rating; higher VBR (17.8–19.7 V identical); identical clamping (26.0 V), but rated for 1500 W (10/1000 μs), not 5000 W | Valid for moderate-surge environments (e.g., non-critical sensor nodes), but insufficient for ISO 7637-2 Pulse 5a compliance | Choose SMC5K16AHM3_A/H where full 5000 W capability and documented automotive surge margin are required |
Compared with SMAJ16A-M3/86A and SMCJ16A-HM3, SMC5K16AHM3_A/H delivers 12.5× higher peak pulse power and validated AEC-Q101 stress performance - making it the only option among the three qualified for front-end automotive power rail protection under ISO 7637-2.
Availability
SMC5K16AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply across extended production lifecycles.
Supply support for SMC5K16AHM3_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 optoelectronics with emphasis on reliability and application-specific performance.
The SMC5K series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where failure tolerance and long-term stability are critical.
FAQ
What is the clamping voltage of SMC5K16AHM3_A/H at its rated peak pulse current?
The SMC5K16AHM3_A/H has a maximum clamping voltage (VC) of 26.0 V at 192 A using the 10/1000 μs waveform. This value is measured per Figure 3 in the datasheet and represents the upper voltage limit imposed on the protected circuit during a standardized surge event. Maintaining VC this low ensures downstream 16 V-rated components remain within safe operating limits.
Is SMC5K16AHM3_A/H qualified for automotive applications?
Yes, SMC5K16AHM3_A/H carries the HM3 suffix, confirming AEC-Q101 qualification per the Vishay datasheet revision dated 09-Jan-2024. This qualification covers stress tests including temperature cycling, humidity bias HAST, and mechanical shock - validating its suitability for under-hood and body-control module deployments where reliability is mission-critical.
What does the "HM3" suffix indicate in SMC5K16AHM3_A/H?
The "HM3" suffix in SMC5K16AHM3_A/H denotes halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance and AEC-Q101 qualification. It distinguishes this variant from standard M3 versions (which lack automotive qualification) and confirms compliance with automotive supply chain material requirements and reflow process standards.
Can SMC5K16AHM3_A/H be used in bidirectional configurations?
No, SMC5K16AHM3_A/H is strictly unidirectional, as confirmed in the "Features" section and electrical characteristics table. Its cathode-band polarity requires connection to the protected line and anode to ground. For bidirectional protection, two SMC5K16AHM3_A/H devices must be back-to-back, or a dedicated bidirectional TVS (e.g., SMC5K16CA) should be selected instead.
What is the thermal resistance junction-to-ambient for SMC5K16AHM3_A/H?
The thermal resistance junction-to-ambient (RthJA) for SMC5K16AHM3_A/H is 90 °C/W, measured per JEDEC 51-2A on a standard FR4 PCB with 2 oz. copper. This value is essential for calculating junction temperature rise during repetitive surge events and must be applied with derating curves (Figure 2) when ambient temperature exceeds 25 °C.
SMC5K16AHM3_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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMC5K16AHM3_A/H FAQ
1.How can I place an order for SMC5K16AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMC5K16AHM3_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 SMC5K16AHM3_A/H reliable?
The price and inventory of SMC5K16AHM3_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 SMC5K16AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMC5K16AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMC5K16AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMC5K16AHM3_A/H?
SMC5K16AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMC5K16AHM3_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 SMC5K16AHM3_A/H?
For technical support, including SMC5K16AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMC5K16AHM3_A/H requirements.
6.How does Aetrix verify that SMC5K16AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMC5K16AHM3_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 SMC5K16AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMC5K16AHM3_A/H?
All SMC5K16AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMC5K16AHM3_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 SMC5K16AHM3_A/H part is unused and in its original packaging.
Return procedure for SMC5K16AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMC5K16AHM3_A/H Tags
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