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Vishay General Semiconductor - Diodes Division SMCG7.0-E3/9AT
- Part No.:
- SMCG7.0-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0-E3/9AT.pdf
- Description:
- TVS DIODE 7VWM 13.3VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,789
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Product details
Overview
SMCG7.0-E3/9AT from Vishay General Semiconductor is a bi-directional surface-mount Transient Voltage Suppressor (TVS) in DO-215AB (SMCG) package, designed for clamping voltage transients on signal and power lines. It features a 7.0 V stand-off voltage (VWM), 12.0 V maximum clamping voltage (VC) at 125 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMCG7.0-E3/9AT datasheet, SMCG7.0-E3/9AT pinout, SMCG7.0-E3/9AT application, or SMCG7.0-E3/9AT equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, low incremental surge resistance, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions, with breakdown voltage (VBR) specified at 7.78–8.60 V (IT = 10 mA), enabling robust protection against bidirectional surges such as ESD, inductive switching spikes, and lightning-induced transients. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repeated surge stress.
The device is rated for TJ = –55 °C to +150 °C operation, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W, supporting high-power transient absorption without external heatsinking when mounted per recommended pad layout. It meets UL 94 V-0 flammability and JESD 201 Class 1A whisker testing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 7.78 V / 8.60 V at IT = 10 mA - defines precise breakdown threshold for surge initiation |
| VC @ IPPM | 12.0 V at 125 A - clamping voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 1500 W - peak transient power handling capacity under standardized waveform |
| ID @ VWM | 200 µA - low leakage ensures minimal standby power loss and signal integrity |
| TJ range | –55 °C to +150 °C - supports under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: DO-215AB (SMCG), surface-mount gull-wing leaded case with matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102 solderability standards. Bi-directional construction means no polarity marking; both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct equally in either direction during overvoltage events |
| Case (exposed metal) | Thermal path | DO-215AB body provides mechanical stability and contributes to thermal dissipation via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Enhances long-term stability of breakdown voltage and leakage current under humidity and thermal stress |
| MSL Level 1 (260 °C peak) | Enables standard reflow soldering without pre-baking or special handling |
| Low profile DO-215AB | 0.220–0.245 inch height enables compact board layouts and compatibility with automated pick-and-place |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector or IC input pins to shunt surge energy to ground. Use Value: Limits transient voltage to ≤12.0 V during 125 A surges, preventing latch-up or damage to 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding PLC digital input modules and fieldbus terminations against inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Standoff-clamp TVS deployed across input lines to absorb repetitive switching transients without degradation. Use Value: Withstands ≥1000 surges at rated PPPM while maintaining <200 µA leakage at 7.0 V, ensuring signal fidelity and long service life. |
| Consumer USB/USB-C Port | Telecom Line Card Protection |
Use Scenario: ESD protection for USB 2.0 data lines and VBUS in portable devices subject to IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) bi-directional clamp placed adjacent to connector to divert ESD current before reaching PHY. Use Value: Clamps to 12.0 V within nanoseconds, preserving signal integrity on high-speed differential pairs without adding capacitance-induced jitter. | Use Scenario: Overvoltage protection on analog telephone line interfaces (POTS) exposed to lightning-induced surges and AC ring signals. IC Role / Device Role / Timing Role: Primary surge suppression device bridging tip/ring lines to ground, coordinated with gas discharge tubes for staged protection. Use Value: Handles 1500 W peak power per 10/1000 µs waveform while maintaining 7.0 V standoff to avoid interfering with -48 V DC bias and ringing detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.0A-E3/57T | Uni-directional; 7.0 V VWM; SMA package (DO-214AC); lower PPPM (400 W) | Requires polarity-aware layout; unsuitable for AC-coupled or true bi-directional lines | Select only if unidirectional clamping suffices and space constraints favor smaller SMA footprint |
| SMCJ7.0CA-E3/9AT | Bi-directional; same VWM and VC; SMC package (DO-214AB); higher PPPM (1500 W); larger footprint | Same functional role but requires 2.5× more PCB area; better thermal mass for sustained surge duty | Prefer when higher thermal margin or legacy SMC footprint compatibility is required |
Compared with SMAJ7.0A-E3/57T and SMCJ7.0CA-E3/9AT, the SMCG7.0-E3/9AT delivers identical bi-directional clamping performance in a lower-profile, AEC-Q101-qualified DO-215AB package - optimizing board space and automotive compliance without sacrificing 1500 W surge rating.
Availability
SMCG7.0-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer USB port protection, and telecom line interface designs requiring stable component supply and full traceability.
Supply support for SMCG7.0-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 is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy, bi-directional transient suppression in space-constrained automotive and industrial environments where AEC-Q101 qualification and low-profile mounting are critical.
FAQ
What is the clamping voltage of SMCG7.0-E3/9AT at its rated peak pulse current?
The SMCG7.0-E3/9AT has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current (IPPM) of 125 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures downstream circuitry remains protected below safe voltage thresholds. The SMCG7.0-E3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCG7.0-E3/9AT suitable for automotive applications?
Yes, SMCG7.0-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and sensor interfaces. Its DO-215AB package meets MSL Level 1, its glass-passivated junction ensures long-term stability under thermal cycling, and its 1500 W surge rating handles load-dump and ISO 7637-2 pulses. The SMCG7.0-E3/9AT is listed in Vishay's automotive-grade product portfolio.
Does SMCG7.0-E3/9AT have polarity markings?
No, SMCG7.0-E3/9AT is a bi-directional TVS diode and carries no polarity marking on the package. The device functions identically regardless of terminal orientation, making it ideal for AC-coupled lines, differential buses, or any application where voltage transients may occur in either polarity. This symmetry is inherent to its CA-suffix design and confirmed in the Vishay datasheet.
What is the thermal resistance of SMCG7.0-E3/9AT, and how does it affect layout?
The SMCG7.0-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To achieve rated PPPM, PCB layout must replicate this pad area - undersized pads will cause thermal derating and reduced surge endurance. The SMCG7.0-E3/9AT's performance is directly tied to proper thermal land design.
How does SMCG7.0-E3/9AT compare to uni-directional TVS diodes like SMAJ7.0A?
Unlike uni-directional types such as SMAJ7.0A, the SMCG7.0-E3/9AT provides symmetrical clamping in both directions, eliminating polarity concerns and enabling use on AC signals, differential pairs, or floating references. It shares the same 7.0 V VWM and 12.0 V VC but differs in package (DO-215AB vs. DO-214AC), qualification (AEC-Q101 vs. commercial), and surge rating (1500 W vs. 400 W). The SMCG7.0-E3/9AT is not a drop-in replacement for SMAJ7.0A due to these fundamental differences.
SMCG7.0-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 13.3V
- Current - Peak Pulse (10/1000µs):
- 112.8A
- 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)
SMCG7.0-E3/9AT FAQ
1.How can I place an order for SMCG7.0-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0-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 SMCG7.0-E3/9AT reliable?
The price and inventory of SMCG7.0-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 SMCG7.0-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG7.0-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0-E3/9AT?
SMCG7.0-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0-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 SMCG7.0-E3/9AT?
For technical support, including SMCG7.0-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0-E3/9AT requirements.
6.How does Aetrix verify that SMCG7.0-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG7.0-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 SMCG7.0-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG7.0-E3/9AT?
All SMCG7.0-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0-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 SMCG7.0-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG7.0-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG7.0-E3/9AT Tags
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