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Vishay General Semiconductor - Diodes Division SMCG16CA-M3/9AT
- Part No.:
- SMCG16CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG16CA-M3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,290
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Product details
Overview
SMCG16CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of signal and power lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 26.0 V at 57.7 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCG16CA-M3/9AT datasheet, SMCG16CA-M3/9AT pinout, SMCG16CA-M3/9AT application, or SMCG16CA-M3/9AT equivalent, this device is selected for high-reliability transient suppression in automotive sensor interfaces, industrial I/O ports, and telecom line protection where bidirectional surge immunity, low clamping ratio, and halogen-free RoHS compliance are required.
Technical Context
The SMCG16CA-M3/9AT operates as a bidirectional avalanche diode, symmetrically clamping voltage transients above ±17.8 V in both polarities. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the DO-215AB package provides low thermal resistance (RθJL = 15 °C/W) and supports high surge current handling (IPPM = 57.7 A).
Designed for unclamped inductive switching events and lightning-induced surges, it meets UL 497B recognition and complies with JESD201 Class 2 whisker resistance. The M3 suffix confirms halogen-free, RoHS-compliant construction and industrial-grade reliability 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 clamping begins |
| VBR min/max | 17.8 V / 19.7 V at 1 mA - Ensures predictable, repeatable breakdown onset under bidirectional stress |
| VC @ IPPM | 26.0 V at 57.7 A - Clamping voltage limits protected circuit stress during 10/1000 µs surge |
| PPPM | 1500 W - Sustains high-energy transients without failure per standard waveform |
| TJ max | +150 °C - Enables operation in under-hood automotive and high-temperature industrial environments |
| Package | SMCG (DO-215AB) - Surface-mount gull-wing package with 8.0 mm × 8.0 mm copper pad thermal relief |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
SMCG16CA-M3/9AT uses the SMCG (DO-215AB) surface-mount package: gull-wing leads, matte tin-plated terminals, UL 94 V-0 molding compound, and no polarity marking (bidirectional configuration). Mounting requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | Accepts surge current during positive half-cycle; symmetrical with cathode for bidirectional operation |
| Cathode | Transient current entry (negative polarity) | Accepts surge current during negative half-cycle; identical electrical behavior to anode terminal |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 1500 W peak pulse power | Withstands high-energy ESD and lightning-induced surges common in automotive CAN/LIN and industrial fieldbus interfaces |
| AEC-Q101 qualification | Validates long-term reliability under automotive thermal cycling, humidity, and bias stress conditions |
| Halogen-free (M3) | Meets environmental compliance mandates for automotive OEMs and industrial equipment manufacturers |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes voltage overshoot across protected ICs, reducing risk of latch-up or gate oxide damage |
Applications
| Automotive Sensor Protection | Industrial Fieldbus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and engine crankshaft position sensors from load dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor signal pair to clamp ±2 kV transients without polarity alignment. Use Value: Prevents sensor IC damage and false triggering by limiting transient voltage to ≤26.0 V while maintaining signal integrity below 16 V normal operation. | Use Scenario: Shielding RS-485 transceivers on factory floor PLC I/O modules from ground loop surges and EFT bursts. IC Role / Device Role / Timing Role: Line-side TVS connected between differential bus lines (A/B) and ground to absorb common-mode energy. Use Value: Maintains data integrity during 4 kV EFT testing by clamping within 1 ns and dissipating 1500 W without degradation over 10⁵ surges. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding DSL and POTS line interface ICs against lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Primary protection device placed before hybrid transformer and line driver, rated for ITU-T K.20/21 compliance. Use Value: Limits induced surge voltage to <30 V across protected silicon, enabling use of lower-voltage-rated downstream components and reducing BOM cost. | Use Scenario: Input-stage surge suppression in USB-C PD adapters subjected to accidental AC mains coupling or hot-plug transients. IC Role / Device Role / Timing Role: Bidirectional TVS across primary-side input capacitor to shunt 1.2/50 µs surges before rectification stage. Use Value: Survives repeated 1.5 kV surge events per IEC 61000-4-5 while maintaining 16 V stand-off for stable 12 V adapter regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16CA | Lower PPPM (400 W), SMA (DO-214AC) package, higher RθJA (110 °C/W) | Suitable for lower-energy consumer applications; not AEC-Q101 qualified | Select SMAJ16CA only when surge energy is ≤400 W and automotive qualification is not required. |
| 1.5KE16CA | Higher power (1500 W), axial leaded (DO-201AD), larger footprint, no surface-mount compatibility | Used in legacy through-hole designs; incompatible with automated SMT assembly | Choose 1.5KE16CA only for manual assembly or retrofit where board real estate and reflow constraints are not limiting. |
Compared with SMAJ16CA and 1.5KE16CA, the SMCG16CA-M3/9AT delivers identical 16 V bidirectional clamping but in a compact, AEC-Q101-qualified, halogen-free SMT package optimized for high-volume automotive and industrial production - offering superior thermal performance and automated placement capability without sacrificing surge rating.
Availability
SMCG16CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial fieldbus protection, and telecom line safeguarding requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG16CA-M3/9AT 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, efficiency, and application-specific optimization.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, bidirectional transient suppression in harsh environments including automotive, industrial automation, and telecommunications infrastructure.
FAQ
What is the clamping voltage of SMCG16CA-M3/9AT at its rated peak pulse current?
The SMCG16CA-M3/9AT has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 57.7 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain below critical voltage thresholds during surge events. The SMCG16CA-M3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCG16CA-M3/9AT suitable for automotive applications?
Yes, SMCG16CA-M3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its construction meets JESD201 Class 2 whisker resistance, UL 497B recognition, and operates reliably from –55 °C to +150 °C. The SMCG16CA-M3/9AT is commonly deployed in engine control units, ADAS sensor interfaces, and body electronics for transient immunity per ISO 7637-2 and ISO 16750-2.
What does the "M3" suffix indicate in SMCG16CA-M3/9AT?
"M3" denotes halogen-free, RoHS-compliant, industrial-grade construction per Vishay's material categorization system. It confirms the molding compound contains no brominated flame retardants or chlorine-based additives, meeting strict environmental regulations for automotive and industrial OEMs. The SMCG16CA-M3/9AT also satisfies JESD201 Class 2 whisker testing and LF peak soldering at 260 °C.
How does SMCG16CA-M3/9AT differ from unidirectional variants like SMCG16A?
Unlike unidirectional SMCG16A, the SMCG16CA-M3/9AT provides symmetrical clamping in both polarities - essential for protecting AC-coupled, floating, or differential signal paths without polarity constraints. It lacks a cathode band marking, has identical VBR min/max in both directions (17.8–19.7 V), and supports applications such as RS-485, CAN FD, and telecom line pairs where bidirectional surge immunity is mandatory. The SMCG16CA-M3/9AT shares the same package, power rating, and thermal specs as its unidirectional counterpart.
What is the recommended PCB pad layout for SMCG16CA-M3/9AT?
Vishay specifies a minimum 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pad area for each terminal to achieve rated thermal performance and surge capability. This layout ensures RθJL = 15 °C/W and supports full 1500 W PPPM dissipation. The SMCG16CA-M3/9AT must be mounted per JEDEC MS-012 standards, with gull-wing leads soldered to flat, non-tapered pads - smaller pads reduce surge current handling and increase junction temperature during transient events.
SMCG16CA-M3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG16CA-M3/9AT FAQ
1.How can I place an order for SMCG16CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG16CA-M3/9AT 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 SMCG16CA-M3/9AT reliable?
The price and inventory of SMCG16CA-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG16CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG16CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG16CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG16CA-M3/9AT?
SMCG16CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG16CA-M3/9AT 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 SMCG16CA-M3/9AT?
For technical support, including SMCG16CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG16CA-M3/9AT requirements.
6.How does Aetrix verify that SMCG16CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG16CA-M3/9AT 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 SMCG16CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG16CA-M3/9AT?
All SMCG16CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG16CA-M3/9AT, 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 SMCG16CA-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG16CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG16CA-M3/9AT Tags
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