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Vishay General Semiconductor - Diodes Division SMCJ16AHM3/I
- Part No.:
- SMCJ16AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ16AHM3/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,224
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Product details
Overview
SMCJ16AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 µs waveform), commonly used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMCJ16AHM3/I datasheet, SMCJ16AHM3/I pinout, SMCJ16AHM3/I application, or SMCJ16AHM3/I equivalent, key selection criteria include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, 1.0 µA max reverse leakage at VWM, and thermal resistance (RθJA = 75 °C/W) under standard PCB pad layout.
Technical Context
The SMCJ16AHM3/I operates as a unidirectional avalanche diode with glass-passivated junction, delivering fast response (<1 ps) to transient surges induced by inductive switching or ESD events. Its breakdown voltage range (17.8–19.7 V at 1.0 mA test current) ensures precise triggering above normal operating voltage while maintaining low clamping stress on downstream components.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it meets MSL Level 1 (peak reflow 260 °C), supports 200 A non-repetitive forward surge (8.3 ms half-sine), and exhibits +0.089 %/°C temperature coefficient of VBR, enabling stable performance across -55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 17.8 V / 19.7 V at 1.0 mA - Ensures reliable turn-on above system rail with margin against false triggering |
| VC @ IPPM | 26.0 V at 57.7 A - Limits voltage seen by protected IC during 1500 W transient event |
| IPPM | 57.7 A (10/1000 µs) - Peak surge current capability defines protection level for common lightning/surge standards |
| RθJA | 75 °C/W - Thermal resistance determines required PCB copper area for sustained power dissipation |
| TJ max | +150 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
| Leakage ID | 1.0 µA max at VWM - Negligible standby power loss in battery-powered or low-power sensor circuits |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to ground or low-side return path; enables clamping when cathode voltage exceeds VBR |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line; conducts surge current to ground when transient exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Halogen-free & RoHS-compliant | Meets environmental regulations for end-of-life disposal and manufacturing safety (HM3 suffix) |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 3.3 V/5 V logic |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns (peak 260 °C) |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress and humidity |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 16 V. Use Value: Clamps to 26.0 V within nanoseconds, preventing damage to 36 V-rated DC-DC controllers and CAN transceivers. | Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) TVS connected across sensor output and ground to absorb ±8 kV HBM ESD. Use Value: Maintains signal integrity with negligible DC loading while limiting transient voltage to safe levels for ADC front-ends. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to surge testing per IEC 61000-4-5. IC Role / Device Role / Timing Role: Standoff-rated TVS on 19 V output rail to absorb 1500 W line-to-ground surges. Use Value: Survives repeated 10/1000 µs transients without degradation, extending adapter field life. | Use Scenario: Protecting -48 V telecom power distribution boards from lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to negative rail, clamping positive transients toward ground. Use Value: Withstands 200 A 8.3 ms surge (IFSM), ensuring resilience against indirect lightning coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16AHE3/A | Lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 110 °C/W) | Suitable only for lower-energy transients; not recommended for automotive load-dump | Select when board space is constrained and surge energy is limited to <500 W |
| SMCJ16A-M3/57T | Same electrical specs but commercial-grade (non-AEC-Q101), M3 suffix (halogen-free RoHS) | Lacks automotive qualification; acceptable for industrial/commercial power supplies | Choose for cost-sensitive non-automotive designs requiring identical protection performance |
Compared with SMCJ16AHM3/I, SMAJ16AHE3/A offers reduced surge handling and thermal performance due to smaller package, while SMCJ16A-M3/57T matches all electrical parameters but omits AEC-Q101 validation-making the HM3/I variant essential for automotive deployment where qualification is mandatory.
Availability
SMCJ16AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power distribution, and consumer power adapter designs requiring stable component supply with full traceability and lifecycle support.
Supply support for SMCJ16AHM3/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness against ISO 7637, IEC 61000-4-5, and ESD events is critical.
FAQ
What is the clamping voltage of the SMCJ16AHM3/I under maximum rated surge current?
The SMCJ16AHM3/I has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 57.7 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry sees no more than 26.0 V during worst-case surge events, making SMCJ16AHM3/I suitable for safeguarding 3.3 V, 5 V, and 12 V logic and power rails.
Is the SMCJ16AHM3/I qualified for automotive applications?
Yes, the SMCJ16AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix in its ordering code. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock-ensuring reliability in under-hood and body-control module applications. The "HM3" designation also indicates halogen-free and RoHS-compliant construction, meeting automotive environmental requirements.
What does the "I" suffix mean in SMCJ16AHM3/I?
The "I" suffix in SMCJ16AHM3/I denotes packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3500 units per reel. This format is optimized for high-volume automated SMT placement. The "HM3" portion confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, while "I" specifies the delivery mode-distinct from "H" (7-inch reel, 850 units) used in other variants of SMCJ16AHM3.
How does the SMCJ16AHM3/I compare to bidirectional TVS diodes like SMCJ16CA?
The SMCJ16AHM3/I is unidirectional and intended for DC line protection where polarity is fixed (e.g., +12 V rail to ground), offering lower leakage and tighter VBR tolerance. In contrast, SMCJ16CA is bidirectional and suited for AC or floating signal lines. They share identical VWM (16 V), VC (26.0 V), and PPPM (1500 W), but SMCJ16AHM3/I cannot replace SMCJ16CA in AC-coupled applications without circuit redesign.
What PCB layout guidance applies to the SMCJ16AHM3/I for optimal thermal and surge performance?
For optimal performance, mount the SMCJ16AHM3/I on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This pad size ensures the rated RθJA of 75 °C/W and supports full 1500 W surge capability. Avoid narrow traces between the device and ground plane; use direct, low-inductance connections to minimize clamping voltage overshoot during fast transients.
SMCJ16AHM3/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:
- Discontinued at Digi-Key
- 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):
- 57.7A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ16AHM3/I FAQ
1.How can I place an order for SMCJ16AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ16AHM3/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 SMCJ16AHM3/I reliable?
The price and inventory of SMCJ16AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ16AHM3/I is usually 5 days.
3.What payment methods are accepted for SMCJ16AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ16AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ16AHM3/I?
SMCJ16AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ16AHM3/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 SMCJ16AHM3/I?
For technical support, including SMCJ16AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ16AHM3/I requirements.
6.How does Aetrix verify that SMCJ16AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMCJ16AHM3/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 SMCJ16AHM3/I meets industry standards.
7.What is the process for return or replacement of SMCJ16AHM3/I?
All SMCJ16AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ16AHM3/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 SMCJ16AHM3/I part is unused and in its original packaging.
Return procedure for SMCJ16AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ16AHM3/I Tags
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