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Vishay General Semiconductor - Diodes Division SMCG16CA-E3/9AT
- Part No.:
- SMCG16CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG16CA-E3/9AT.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,235
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Product details
Overview
SMCG16CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection on 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-grade reliability.
For engineers reviewing the SMCG16CA-E3/9AT datasheet, SMCG16CA-E3/9AT pinout, SMCG16CA-E3/9AT application, or SMCG16CA-E3/9AT equivalent, this device is selected for high-energy surge suppression in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning where bidirectional clamping, low clamping ratio, and MSL Level 1 solderability are required.
Technical Context
The SMCG16CA-E3/9AT operates as a bidirectional avalanche diode, symmetrically clamping voltage transients above ±17.8 V in either polarity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while its low incremental surge resistance enables effective energy diversion during fast-rising ESD or lightning-induced surges.
Thermally, it delivers 6.5 W power dissipation at TA = 50 °C with RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation from –55 °C to +150 °C junction temperature. The device meets UL 497B recognition (QVGQ2) and is rated for 200 A unidirectional IFSM - though not applicable to this bidirectional variant - confirming robust surge handling capability under standardized test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range for protected lines |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - guaranteed avalanche initiation threshold in both directions; ensures predictable turn-on behavior |
| VC @ IPPM | 26.0 V at 57.7 A - clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs |
| PPPM | 1500 W - peak transient power handling capacity; supports high-energy surges per IEC 61000-4-5 Level 4 |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage at stand-off voltage; preserves signal integrity and minimizes standby power loss |
| TJ Range | –55 °C to +150 °C - extended thermal operating envelope suitable for under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - validated for automotive electronics per stress-test requirements including HTOL, TCT, and ESD HBM/MM |
Pinout & Package
SMCG16CA-E3/9AT uses the SMCG (DO-215AB) surface-mount package: a gull-wing, dual-terminal, bidirectional case with no polarity marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; symmetrical conduction enables universal placement |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; no orientation dependency simplifies PCB layout and automated assembly |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential lines (e.g., CAN, RS-485) without polarity concerns |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV/2 Ω (open-circuit voltage) without degradation |
| AEC-Q101 qualification | Validates reliability for automotive applications including body control modules, ADAS sensors, and infotainment interfaces |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without moisture-related delamination; eliminates bake requirement prior to assembly |
| UL 497B recognition (QVGQ2) | Confirms compliance for use in telecommunications and industrial signal-line protectors per safety standards |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog and digital sensor outputs (e.g., pressure, temperature, position sensors) in engine control units and ADAS subsystems from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor supply and ground or signal pair to clamp ±200 V transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to precision op-amps and ADC front-ends by limiting voltage to ≤26.0 V during 10/1000 µs surges. |
Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controllers against field-wiring induced surges and electrostatic discharge. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between input terminal and common rail to absorb repetitive 1 kV/500 A transients per IEC 61000-4-4. Use Value: Maintains functional safety integrity by ensuring input circuitry remains operational after >1000 surge events without parameter drift. |
| Telecom Line Interface | Consumer Device USB/DisplayPort ESD Protection |
Use Scenario: Shielding RS-485/RS-422 data lines in base station backhaul equipment and network switches from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Differential-mode TVS mounted across twisted-pair lines to suppress asymmetric transients while preserving signal rise time. Use Value: Achieves <1 ns response time and <26 V clamping to prevent receiver IC damage without degrading 10 Mbps signal fidelity. |
Use Scenario: Adding secondary-level surge immunity to USB 2.0 or DisplayPort auxiliary channels in laptops and docking stations exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed inline with high-speed data lanes to shunt >8 kV HBM ESD pulses. Use Value: Limits junction capacitance to <100 pF (typ.) at zero bias, avoiding signal integrity loss while meeting IEC 61000-4-2 Level 4 (±15 kV air). |
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 | Same VWM (16 V), lower PPPM (400 W), SMA (DO-214AC) package with higher RθJA (110 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load-dump | Select SMAJ16CA only for cost-sensitive consumer applications with <500 W surge requirements and space-constrained layouts. |
| 1.5KE16CA | Same VWM (16 V), higher PPPM (1500 W), axial DO-15 package with manual assembly and no AEC-Q101 qualification | Not suitable for automated SMT lines or automotive under-hood environments due to thermal and mechanical limitations | Choose 1.5KE16CA only for prototyping or legacy through-hole designs where reflow compatibility and automotive qualification are not required. |
Compared with SMAJ16CA and 1.5KE16CA, SMCG16CA-E3/9AT uniquely combines 1500 W surge rating, AEC-Q101 qualification, MSL Level 1 compatibility, and DO-215AB gull-wing geometry - enabling high-reliability, high-volume SMT deployment in automotive and industrial systems where thermal performance and process robustness are critical.
Availability
SMCG16CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line conditioning requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG16CA-E3/9AT 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 specifically for high-power, surface-mount transient suppression in demanding automotive and industrial environments - prioritizing low clamping voltage, bidirectional symmetry, and AEC-Q101-compliant robustness.
FAQ
What is the clamping voltage of SMCG16CA-E3/9AT at its rated peak pulse current?
The SMCG16CA-E3/9AT has a maximum clamping voltage (VC) of 26.0 V when subjected to its 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 downstream components experience no more than 26.0 V during surge events. The clamping performance is consistent in both polarities due to the device's bidirectional architecture, making SMCG16CA-E3/9AT especially suitable for protecting balanced signal paths.
Is SMCG16CA-E3/9AT suitable for automotive applications?
Yes, SMCG16CA-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and chassis-mounted modules. Its –55 °C to +150 °C operating temperature range, MSL Level 1 reflow compatibility, and validation against HTOL, TCT, and ESD stress tests confirm suitability for engine control units, ADAS sensors, and body electronics. The bidirectional design also supports CAN FD and LIN bus protection where polarity-agnostic clamping is essential - a key advantage of SMCG16CA-E3/9AT in modern vehicle architectures.
What does the "CA" suffix indicate in SMCG16CA-E3/9AT?
The "CA" suffix in SMCG16CA-E3/9AT denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., SMCG16A), SMCG16CA-E3/9AT has no cathode band marking and exhibits identical VBR, VC, and IPPM characteristics regardless of voltage polarity. This makes SMCG16CA-E3/9AT ideal for AC-coupled circuits, differential buses, and applications where transient direction cannot be predetermined - such as Ethernet PHY interfaces or audio line drivers.
How does the SMCG (DO-215AB) package differ from SMA (DO-214AC) in thermal performance?
The SMCG (DO-215AB) package used by SMCG16CA-E3/9AT offers significantly better thermal performance than SMA (DO-214AC): RθJA is 75 °C/W versus ~110 °C/W for SMAJ-series devices. This 32% improvement stems from larger copper pad area recommendations (0.31" × 0.31") and lower junction-to-lead resistance (RθJL = 15 °C/W). As a result, SMCG16CA-E3/9AT sustains higher average power dissipation and maintains lower junction temperatures during repetitive surge events - a critical advantage in thermally dense automotive ECUs where SMCG16CA-E3/9AT is routinely deployed.
What is the maximum reverse leakage current for SMCG16CA-E3/9AT at its stand-off voltage?
The maximum reverse leakage current (ID) for SMCG16CA-E3/9AT is 1.0 µA at its stand-off voltage (VWM) of 16 V and TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power draw in battery-powered systems. Leakage remains well below 10 µA even at elevated temperatures up to +125 °C, ensuring reliable operation in industrial control cabinets and automotive junction boxes - a key specification confirmed in the Vishay 88457 datasheet for SMCG16CA-E3/9AT.
SMCG16CA-E3/9AT 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-E3/9AT FAQ
1.How can I place an order for SMCG16CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG16CA-E3/9AT 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-E3/9AT reliable?
The price and inventory of SMCG16CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG16CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG16CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG16CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG16CA-E3/9AT?
SMCG16CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG16CA-E3/9AT 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-E3/9AT?
For technical support, including SMCG16CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG16CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG16CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG16CA-E3/9AT 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-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG16CA-E3/9AT?
All SMCG16CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG16CA-E3/9AT, 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-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG16CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG16CA-E3/9AT Tags
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