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Vishay General Semiconductor - Diodes Division SMCG16A-M3/9AT
- Part No.:
- SMCG16A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG16A-M3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,537
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Product details
Overview
SMCG16A-M3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) surface-mount package, designed for robust overvoltage protection of sensitive electronics. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 26.0 V clamping voltage (VC) at 57.7 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with a 10/1000 µs waveform - deployed in automotive power line and sensor interface protection.
For engineers reviewing the SMCG16A-M3/9AT datasheet, SMCG16A-M3/9AT pinout, SMCG16A-M3/9AT application, or SMCG16A-M3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance data, and real-world use context for ESD/surge protection design validation.
Technical Context
The SMCG16A-M3/9AT operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its clamping behavior is defined under standardized 10/1000 µs surge conditions, with thermal performance governed by RθJA = 75 °C/W and RθJL = 15 °C/W.
Designed for surface-mount automated placement, it meets J-STD-020 MSL Level 1 (260 °C peak reflow) and is qualified to AEC-Q101 for automotive-grade reliability. Polarity is marked by a cathode band; no marking applies to bidirectional variants - but SMCG16A-M3/9AT is explicitly unidirectional per device marking code "GEP" and datasheet table entry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - guaranteed avalanche onset range for reliable threshold control |
| VC @ IPPM | 26.0 V at 57.7 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient power handling capability under standard surge waveform |
| ID @ VWM | 1.0 µA - ultra-low leakage ensures minimal standby power loss in high-impedance circuits |
| TJ max. | +150 °C - extended junction temperature rating supports under-hood automotive deployment |
| RθJA | 75 °C/W - thermal resistance enables stable operation on 8.0 mm × 8.0 mm copper pads without forced cooling |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount case with matte tin-plated leads solderable per J-STD-002; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-banded side is opposite) | Connected to system ground or low-side return path during clamping |
| Cathode | Avalanche breakdown terminal (marked with band) | Connected to protected line (e.g., 12 V rail or sensor signal) to shunt transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS compliant (M3 suffix) | Meets environmental compliance requirements for industrial and automotive supply chains |
| Low incremental surge resistance | Enables tighter clamping and reduced voltage overshoot during fast transients |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns |
| Glass passivated junction | Ensures long-term stability and consistent VBR across temperature and lifetime |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 16 V. Use Value: Limits peak voltage to 26.0 V during 57.7 A transients, preventing damage to MCU power inputs and CAN transceivers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at sensor connector to absorb ESD and inductive switching spikes on 4–20 mA or 0–10 V lines. Use Value: Sub-ns response and 1.0 µA leakage preserve signal integrity while enabling >15 kV contact ESD immunity per IEC 61000-4-2. |
| Consumer USB Port Surge Suppression | Telecom Base Station DC Feed Protection |
Use Scenario: Adding secondary surge margin to USB VBUS lines in portable docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of USB power switches to handle hot-plug and cable-induced surges. Use Value: 1500 W PPPM rating absorbs multiple 10/1000 µs events without degradation, extending port lifespan. |
Use Scenario: Protecting remote radio head (RRH) DC power feeds from lightning-induced surges on outdoor telecom infrastructure. IC Role / Device Role / Timing Role: Primary clamping device on -48 V DC input, coordinated with upstream GDTs for staged protection. Use Value: 150 °C TJ max and 75 °C/W RθJA allow reliable operation in sealed, passive-cooled enclosures up to 85 °C ambient. |
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-E3/57T | Same VWM (16 V) and VC (26.0 V), but lower PPPM (400 W) and smaller SMA (DO-214AC) package | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 Pulse 5a | Select when board space is constrained and surge energy remains below 400 W duty cycle |
| SMCJ16A-M3/9AT | Identical VWM, VBR, and VC, but rated for 3000 W PPPM and uses larger SMC (DO-214AB) package | Supports higher surge repetition rates and longer-duration transients in industrial motor drives | Choose when system-level testing requires >1500 W margin or sustained surge exposure is expected |
Compared with SMAJ16A-E3/57T, SMCG16A-M3/9AT delivers 3.75× higher peak power handling in a similarly compact footprint; versus SMCJ16A-M3/9AT, it trades 2× PPPM capacity for reduced height and improved automated placement yield - making it optimal for space-constrained AEC-Q101-compliant designs.
Availability
SMCG16A-M3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for SMCG16A-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 and application-specific performance.
The SMCG series was developed to deliver high-power, low-profile TVS protection for automotive and industrial environments where AEC-Q101 compliance, thermal robustness, and precise clamping are critical.
FAQ
What is the clamping voltage of the SMCG16A-M3/9AT under a 10/1000 µs surge?
The SMCG16A-M3/9AT has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 57.7 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures predictable overvoltage limiting for downstream circuitry. The SMCG16A-M3/9AT maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is the SMCG16A-M3/9AT suitable for automotive applications?
Yes, the SMCG16A-M3/9AT is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its halogen-free (M3) construction, MSL Level 1 reflow compatibility, and 150 °C maximum junction temperature meet stringent automotive manufacturing and operational requirements. The SMCG16A-M3/9AT is referenced in Vishay's automotive-grade transient suppressor portfolio.
What does the "M3" suffix indicate in SMCG16A-M3/9AT?
"M3" denotes halogen-free, RoHS-compliant, industrial-grade construction per Vishay's ordering nomenclature. It confirms compliance with JEDEC J-STD-020 MSL Level 1, JESD 201 Class 2 whisker resistance, and UL 94 V-0 flammability. The SMCG16A-M3/9AT uses matte tin-plated leads and meets material categorization requirements defined in Vishay document 99912 - distinct from "E3" (standard RoHS) and "HM3" (AEC-Q101 + halogen-free).
How does the SMCG16A-M3/9AT compare to bidirectional TVS diodes like SMCG16CA?
The SMCG16A-M3/9AT is unidirectional and intended for DC line protection with polarity-sensitive placement (cathode band toward protected line). In contrast, SMCG16CA is bidirectional, supporting AC or floating-line applications but with identical VWM (16 V) and VC (26.0 V). The SMCG16A-M3/9AT offers lower leakage (<1.0 µA vs. ≤2.0 µA for CA variants) and supports forward surge current (IFSM = 200 A), which SMCG16CA does not specify.
What PCB pad layout is recommended for optimal thermal performance of the SMCG16A-M3/9AT?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area per terminal to achieve the published RθJA of 75 °C/W and sustain 1500 W peak pulse power. The SMCG16A-M3/9AT datasheet Figure 2 shows derating curves confirming that thermal performance degrades significantly below this pad size. Use internal copper planes and thermal vias beneath pads if ambient temperatures exceed 70 °C.
SMCG16A-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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG16A-M3/9AT FAQ
1.How can I place an order for SMCG16A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG16A-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 SMCG16A-M3/9AT reliable?
The price and inventory of SMCG16A-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 SMCG16A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG16A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG16A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG16A-M3/9AT?
SMCG16A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG16A-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 SMCG16A-M3/9AT?
For technical support, including SMCG16A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG16A-M3/9AT requirements.
6.How does Aetrix verify that SMCG16A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG16A-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 SMCG16A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG16A-M3/9AT?
All SMCG16A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG16A-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 SMCG16A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG16A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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