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Vishay General Semiconductor - Diodes Division SMCG16AHE3/9AT
- Part No.:
- SMCG16AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG16AHE3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,744
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Product details
Overview
SMCG16AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) 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, 1500 W peak pulse power (10/1000 µs), 26.0 V clamping voltage at 57.7 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG16AHE3/9AT datasheet, SMCG16AHE3/9AT pinout, SMCG16AHE3/9AT application, or SMCG16AHE3/9AT equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity with cathode band marking, RoHS-compliant matte tin terminals, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCG16AHE3/9AT operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to clamp transient voltages before downstream ICs or MOSFETs are damaged. Its unidirectional configuration enables integration into DC power rails and signal lines where reverse conduction must be blocked.
Thermal design relies on RθJA = 75 °C/W and RθJL = 15 °C/W, requiring PCB pad layout per Vishay's recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper areas for rated 1500 W pulse handling. The device is rated for TJ = –55 °C to +150 °C and meets MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail protection threshold. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - Ensures reliable avalanche initiation within tight tolerance for consistent clamping onset. |
| VC @ IPPM | 26.0 V at 57.7 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected circuitry. |
| PPPM | 1500 W - Peak pulse power handling capability; validates suitability for high-energy transients like ISO 7637-2 Pulse 5a. |
| ID @ VWM | 1.0 µA - Ultra-low reverse leakage at stand-off voltage; minimizes standby power loss in battery-powered systems. |
| TJ max. | +150 °C - Junction temperature limit enabling operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Confirms reliability for automotive electronic control units (ECUs), infotainment, and ADAS sensor interfaces. |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing leaded package with matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration. |
| Cathode | Avalanche clamping terminal | Marked with band; connected to protected line (e.g., 12 V rail or CAN_H); conducts during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress. |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns; eliminates bake requirements pre-SMT. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for sub-20 V logic and analog circuits. |
| Automated placement compatibility | Gull-wing leads and defined footprint enable high-yield pick-and-place with standard vision alignment systems. |
| RoHS-compliant & AEC-Q101 qualified | Meets automotive supply chain compliance requirements and supports PPAP documentation for Tier 1 OEM programs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V power inputs in engine control modules (ECMs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping surges above 26 V. Use Value: Withstands 1500 W pulses and operates up to +150 °C, ensuring functional safety in under-hood environments. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors from ESD and switching noise. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting transients before signal conditioning amplifier. Use Value: 1.0 µA leakage at 16 V preserves loop accuracy; 26.0 V clamping protects op-amp inputs rated to ±30 V. |
| Telecom DC Power Input Protection | Consumer USB Power Delivery Line Protection |
|
Use Scenario: Safeguarding -48 V telecom rectifier outputs from lightning-induced surges on distribution backplanes. IC Role / Device Role / Timing Role: Unidirectional TVS configured with cathode to -48 V rail, anode to chassis ground. Use Value: 1500 W PPPM and 57.7 A IPPM meet IEC 61000-4-5 Level 4 requirements for telecom infrastructure. |
Use Scenario: Adding secondary overvoltage protection on VBUS lines of USB-C PD adapters after primary regulation. IC Role / Device Role / Timing Role: TVS placed downstream of buck converter, limiting fault voltage to <26 V during output short-circuit recovery. Use Value: Tight 17.8–19.7 V VBR ensures clamping initiates before USB PD 20 V max specification is exceeded. |
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), but lower PPPM (400 W); SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients; unsuitable for automotive load dump or IEC 61000-4-5 testing. | Select when cost or board space is critical and surge energy remains below 400 W. |
| SMCJ16AHE3/9AT | Same VWM (16 V), identical SMCG (DO-215AB) package, but rated for 3000 W PPPM and 115 A IPPM. | Higher surge capacity supports harsher environments (e.g., commercial vehicle alternators, industrial motor drives). | Choose when system-level testing requires >1500 W margin or extended lifetime under repetitive surges. |
Compared with SMAJ16A-E3/57T, SMCG16AHE3/9AT delivers 275 % more pulse power in the same footprint; versus SMCJ16AHE3/9AT, it trades 50 % lower surge rating for tighter VBR tolerance and optimized cost for mid-tier automotive modules.
Availability
SMCG16AHE3/9AT is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer USB-C PD designs requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMCG16AHE3/9AT 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive and industrial applications demanding AEC-Q101 qualification and robust thermal performance.
FAQ
What is the clamping voltage of SMCG16AHE3/9AT and how is it measured?
The SMCG16AHE3/9AT has a maximum clamping voltage (VC) of 26.0 V at 57.7 A peak pulse current (IPPM), tested with a 10/1000 µs waveform per ANSI/IEEE C62.35. This value represents the upper voltage limit imposed on the protected circuit during a standardized surge event and is measured across the device terminals under specified test conditions.
Is SMCG16AHE3/9AT suitable for automotive applications?
Yes, SMCG16AHE3/9AT is AEC-Q101 qualified and rated for operation from –55 °C to +150 °C, making it suitable for under-hood and cabin automotive applications including body control modules, lighting drivers, and sensor interfaces. Its DO-215AB package supports automated SMT assembly per automotive manufacturing standards.
What does the "HE3" suffix indicate in SMCG16AHE3/9AT?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" indicates AEC-Q101 qualification, "E3" signifies matte tin plating and industrial-grade RoHS compliance per Vishay's material categorization system, distinguishing it from non-automotive variants like "E3" or "M3".
How does the SMCG16AHE3/9AT differ from bidirectional versions like SMCG16CA?
SMCG16AHE3/9AT is unidirectional with cathode band marking and blocks reverse current; SMCG16CA is bidirectional with symmetrical breakdown in both directions and no polarity marking. The unidirectional version offers lower leakage at VWM (1.0 µA vs. 1.0 µA for CA at ≤10 V, but higher for >10 V) and is used where DC bias exists.
What PCB layout guidance applies to SMCG16AHE3/9AT for optimal thermal and surge performance?
Vishay specifies mounting SMCG16AHE3/9AT on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated 1500 W pulse power. Minimizing trace inductance between the device and protected node is critical; use short, wide traces and avoid vias in the main surge path to preserve clamping speed and effectiveness.
SMCG16AHE3/9AT 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG16AHE3/9AT FAQ
1.How can I place an order for SMCG16AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG16AHE3/9AT 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 SMCG16AHE3/9AT reliable?
The price and inventory of SMCG16AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG16AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG16AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG16AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG16AHE3/9AT?
SMCG16AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG16AHE3/9AT 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 SMCG16AHE3/9AT?
For technical support, including SMCG16AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG16AHE3/9AT requirements.
6.How does Aetrix verify that SMCG16AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG16AHE3/9AT 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 SMCG16AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG16AHE3/9AT?
All SMCG16AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG16AHE3/9AT, 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 SMCG16AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG16AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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