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Vishay General Semiconductor - Diodes Division SMCG7.0AHE3/9AT
- Part No.:
- SMCG7.0AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG7.0AHE3/9AT.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,849
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Product details
Overview
SMCG7.0AHE3/9AT 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 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR) at 10 mA, 125 A peak pulse current (IPPM), 12.0 V clamping voltage (VC) at IPPM, and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMCG7.0AHE3/9AT datasheet, SMCG7.0AHE3/9AT pinout, SMCG7.0AHE3/9AT application, or SMCG7.0AHE3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), DO-215AB mechanical outline, and real-world use cases in automotive and industrial transient suppression.
Technical Context
The SMCG7.0AHE3/9AT 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 under 10/1000 µs transients ensures predictable voltage limiting during ESD, load dump, or inductive switching events.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads per terminal, it supports automated placement and meets JESD 201 Class 2 whisker resistance. With an operating junction temperature range of –55 °C to +150 °C and AEC-Q101 qualification, it targets high-reliability automotive subsystems where thermal derating and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Confirmed breakdown threshold range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 12.0 V at 125 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 1500 W - Peak transient energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard PCB layout; informs thermal design margin at 6.5 W PD. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, and ESD testing per AEC specification. |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when V > VBR; polarity-sensitive for unidirectional operation. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes conduction path during clamping; requires low-inductance layout for effective suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD), improving clamping precision vs. higher-Rsurge TVS devices. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing without baking, simplifying SMT manufacturing flow. |
| 1500 W PPPM (10/1000 µs) | Supports protection of 12 V automotive systems against load-dump-induced surges up to ISO 7637-2 Level 5a. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting microcontroller power inputs in engine control units exposed to load dump transients up to 35 V for 400 ms. IC Role / Device Role: Unidirectional TVS clamp placed between battery rail and LDO input to limit voltage excursion. Use Value: Clamps to ≤12.0 V during 125 A surge, preventing LDO overvoltage failure and ensuring MCU uptime during cranking/dump events. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation PLC modules subject to inductive kickback. IC Role / Device Role: TVS placed across sensor output and ground to shunt transient energy from solenoid switching noise. Use Value: Sub-ns response and 12.0 V clamping prevent ADC saturation and maintain ±0.1% measurement accuracy under 1 kV EFT bursts. |
| Telecom Line Surge Suppression | Consumer USB Port ESD Protection |
|
Use Scenario: Front-end protection of PoE-powered Ethernet PHYs in network switches subjected to lightning-induced surges. IC Role / Device Role: Primary TVS on data pair lines (e.g., MDI-X) to absorb common-mode transients before choke and transformer. Use Value: 1500 W PPPM and 75 °C/W RθJA enable sustained surge handling without thermal runaway in enclosed chassis. |
Use Scenario: Secondary-level ESD protection on VBUS line of USB-C ports in portable medical monitors. IC Role / Device Role: Unidirectional TVS between USB power rail and ground, downstream of primary fuse and filter. Use Value: AEC-Q101 qualification and 1000 µA ID at 7.0 V ensure no leakage-induced battery drain while passing IEC 61000-4-2 ±15 kV contact discharge. |
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 | Same VWM (7.0 V) and VC (12.0 V), but lower PPPM (400 W); SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients (e.g., IEC 61000-4-2 only); unsuitable for automotive load dump or ISO 7637-2. | Select when cost or board space is prioritized over automotive-grade surge margin and thermal performance. |
| SMCJ7.0AHE3/9AT | Identical VWM (7.0 V), VBR (7.78–8.60 V), and VC (12.0 V); same SMCG package and AEC-Q101 qualification; PPPM = 1500 W. | No functional difference - identical electrical and mechanical specs; differs only in ordering suffix (SMCJ vs. SMCG series branding). | SMCJ7.0AHE3/9AT is a functionally identical alternative with identical footprint, ratings, and qualification; verify manufacturer cross-reference before substitution. |
Compared with SMAJ7.0A-E3/57T, SMCG7.0AHE3/9AT delivers 275% higher surge power handling and 32% lower thermal resistance, enabling robust automotive deployment; versus SMCJ7.0AHE3/9AT, it offers identical performance - confirming SMCG7.0AHE3/9AT as a validated AEC-Q101 option for high-energy transient suppression.
Availability
SMCG7.0AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning circuits, and telecom infrastructure power interfaces requiring stable component supply, AEC-Q101 compliance, and 1500 W transient immunity.
Supply support for SMCG7.0AHE3/9AT 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, AEC-Q101-compliant transient suppression in automotive and industrial environments where thermal stability, surge margin, and automated assembly compatibility are mandatory.
FAQ
What is the clamping voltage of SMCG7.0AHE3/9AT at its rated peak pulse current?
The SMCG7.0AHE3/9AT has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current (IPPM) of 125 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet revision 09-Jan-2024, ensuring predictable overvoltage limiting for downstream ICs in SMCG7.0AHE3/9AT-protected circuits.
Is SMCG7.0AHE3/9AT qualified for automotive applications?
Yes, SMCG7.0AHE3/9AT is explicitly AEC-Q101 qualified, as stated in the Vishay document 88457 and confirmed by the HE3 suffix denoting AEC-Q101 qualification and RoHS compliance. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making SMCG7.0AHE3/9AT suitable for under-hood and body-control module deployments.
What does the "9AT" suffix indicate in SMCG7.0AHE3/9AT?
The "9AT" suffix in SMCG7.0AHE3/9AT specifies the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3500 units per reel. This differs from the "57T" suffix (7-inch reel, 850 units), and is compatible with high-volume SMT pick-and-place equipment requiring extended reel length and reduced changeover frequency for SMCG7.0AHE3/9AT production runs.
How does the SMCG (DO-215AB) package compare thermally to SMA (DO-214AC)?
The SMCG (DO-215AB) package used by SMCG7.0AHE3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W on standard 8.0 mm × 8.0 mm copper pads - significantly lower than the ~110 °C/W of the smaller SMA (DO-214AC) package. This 32% thermal advantage allows SMCG7.0AHE3/9AT to sustain higher average power dissipation and survive repeated surge events without thermal runaway.
Can SMCG7.0AHE3/9AT be used in bidirectional configurations?
No - SMCG7.0AHE3/9AT is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix and presence of cathode band marking. Bidirectional variants such as SMCG7.0CA exist in the same family but feature symmetric breakdown in both polarities and no polarity marking; using SMCG7.0AHE3/9AT in reverse-biased AC applications would result in unintended conduction and potential failure.
SMCG7.0AHE3/9AT 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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 125A
- 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)
SMCG7.0AHE3/9AT FAQ
1.How can I place an order for SMCG7.0AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG7.0AHE3/9AT 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 SMCG7.0AHE3/9AT reliable?
The price and inventory of SMCG7.0AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG7.0AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG7.0AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG7.0AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG7.0AHE3/9AT?
SMCG7.0AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG7.0AHE3/9AT 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 SMCG7.0AHE3/9AT?
For technical support, including SMCG7.0AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG7.0AHE3/9AT requirements.
6.How does Aetrix verify that SMCG7.0AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG7.0AHE3/9AT 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 SMCG7.0AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG7.0AHE3/9AT?
All SMCG7.0AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG7.0AHE3/9AT, 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 SMCG7.0AHE3/9AT part is unused and in its original packaging.
Return procedure for SMCG7.0AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG7.0AHE3/9AT Tags
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