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Vishay General Semiconductor - Diodes Division SMBG7.0A-E3/52
- Part No.:
- SMBG7.0A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.0A-E3/52.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,079
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Product details
Overview
SMBG7.0A-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping fast-rising voltage transients on power and signal lines. It features a 7.0 V stand-off voltage (VWM), 7.78–8.60 V breakdown voltage (VBR) at 10 mA, 12.0 V maximum clamping voltage (VC) at 50.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMBG7.0A-E3/52 datasheet, SMBG7.0A-E3/52 pinout, SMBG7.0A-E3/52 application, or SMBG7.0A-E3/52 equivalent, key selection criteria include clamping performance under 50 A surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while low incremental surge resistance minimizes voltage overshoot during transient events.
The SMBG7.0A-E3/52 is rated for -55 °C to +150 °C operating junction temperature, has 100 °C/W junction-to-ambient thermal resistance, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is RoHS compliant (E3 suffix), industrial grade, and qualified to AEC-Q101 for automotive electronics reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuit. |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction. |
| VC @ IPPM | 12.0 V at 50.0 A - Clamping voltage under full-rated surge; limits stress on downstream ICs or MOSFETs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; supports repetitive surges at 0.01% duty cycle. |
| IPPM | 50.0 A - Peak pulse current capability; determines survivability against lightning-induced or inductive-switching transients. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| Leakage ID | 800 μA at VWM - Low reverse leakage preserves signal integrity and power efficiency in standby modes. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by molded band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; forms clamping path to cathode during overvoltage. |
| Cathode | Avalanche conduction terminal | Marked with band; connected to higher-potential rail (e.g., VCC or signal line); conducts surge current to ground or rail. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems without derating. |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics where reliability under thermal cycling and vibration is mandatory. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature, critical for long-term field performance. |
| MSL Level 1 | Supports standard SMT reflow profiles up to 260 °C peak without moisture-related damage or popcorn effect. |
| Low profile SMBG package | Reduces board space vs. SMA/SMB; compatible with high-density layouts and automated pick-and-place equipment. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp spikes above 12 V. Use Value: Limits voltage to ≤12.0 V at 50 A surge, preventing damage to LDOs, microcontrollers, and CAN transceivers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC modules exposed to EFT noise. IC Role / Device Role / Timing Role: TVS mounted across differential signal pair or single-ended output to shunt fast transients. Use Value: Sub-1 ns response and 12.0 V clamping preserve signal fidelity and prevent ADC saturation or latch-up. |
| Consumer USB Power Port Protection | Telecom DC Feeder Line Protection |
Use Scenario: Adding surge immunity to 5 V USB Type-A ports in smart home hubs and docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS on VUSB rail to absorb hot-plug and ESD-induced overshoot. Use Value: 7.0 V VWM allows normal 5 V operation; 12.0 V VC prevents overvoltage stress on USB controller ICs. | Use Scenario: Protecting 48 V DC power feeds in PoE-powered base stations and remote radio units. IC Role / Device Role / Timing Role: TVS installed at input stage to clamp induced surges from nearby lightning strikes. Use Value: 600 W rating and 50 A IPPM sustain multiple 10/1000 μs transients without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A-E3/52 | Same VWM (7.0 V), but SMBJ package (DO-214AA); 600 W rating, 52.0 A IPPM, 12.6 V VC. | Slightly higher clamping voltage and larger footprint; less suitable for ultra-dense layouts. | Select when existing PCB uses SMBJ pad layout or requires marginally higher surge current. |
| 1.5SMC7.0A | Same VWM and VBR; SMC (DO-214AB) package; 600 W, 52.0 A IPPM, 12.6 V VC; higher RθJA (125 °C/W). | Larger body height; not MSL Level 1; not AEC-Q101 qualified. | Choose for cost-sensitive industrial designs where automotive qualification and reflow compatibility are not required. |
Compared with SMBJ7.0A-E3/52 and 1.5SMC7.0A, the SMBG7.0A-E3/52 offers identical electrical protection specs in a smaller, lower-profile SMBG package with AEC-Q101 qualification and MSL Level 1 compliance-making it optimal for space-constrained automotive and high-reliability industrial applications.
Availability
SMBG7.0A-E3/52 is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, consumer USB power port protection, and telecom DC feeder line protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBG7.0A-E3/52 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific performance.
The SMBG series is engineered for high-efficiency transient suppression in automotive, industrial, and communications systems-delivering consistent clamping behavior, low leakage, and robust surge endurance in compact surface-mount packages.
FAQ
What is the clamping voltage of SMBG7.0A-E3/52 at its rated peak pulse current?
The SMBG7.0A-E3/52 has a maximum clamping voltage (VC) of 12.0 V at 50.0 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on the protected circuit during a full-rated transient event. The SMBG7.0A-E3/52 maintains this clamping performance across its specified operating temperature range.
Is SMBG7.0A-E3/52 suitable for automotive applications?
Yes, SMBG7.0A-E3/52 is AEC-Q101 qualified and rated for operation from -55 °C to +150 °C junction temperature, making it suitable for under-hood and body-control module applications. Its glass-passivated junction, MSL Level 1 reflow compatibility, and 600 W surge rating meet stringent automotive reliability requirements. The SMBG7.0A-E3/52 is explicitly listed in Vishay's AEC-Q101-qualified product table.
What does the "E3/52" suffix indicate in SMBG7.0A-E3/52?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "/52" specifies packaging in 7" diameter plastic tape and reel with 750 units per reel. This ordering code aligns with Vishay's standard industrial-grade configuration-distinct from HE3 (AEC-Q101 qualified) or M3 (halogen-free) variants. The SMBG7.0A-E3/52 is not AEC-Q101 certified unless marked HE3.
How does SMBG7.0A-E3/52 differ from bidirectional TVS diodes like SMBG7.0CA?
The SMBG7.0A-E3/52 is unidirectional and features a cathode band marking; it conducts only in reverse bias and blocks forward current above ~3.5 V. In contrast, SMBG7.0CA is bidirectional with symmetrical clamping in both polarities and no polarity marking. The SMBG7.0A-E3/52 is used on DC rails where polarity is fixed; SMBG7.0CA suits AC lines or differential signals. Their VBR and VC values differ accordingly.
What is the thermal resistance of SMBG7.0A-E3/52, and how does it affect layout design?
The SMBG7.0A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area and thermal vias. Reducing pad size or omitting thermal relief increases RθJA, potentially causing thermal runaway. The SMBG7.0A-E3/52 datasheet specifies minimum pad dimensions to achieve this rating.
SMBG7.0A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB 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):
- 50A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBG)
SMBG7.0A-E3/52 FAQ
1.How can I place an order for SMBG7.0A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.0A-E3/52 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 SMBG7.0A-E3/52 reliable?
The price and inventory of SMBG7.0A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.0A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG7.0A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.0A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.0A-E3/52?
SMBG7.0A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.0A-E3/52 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 SMBG7.0A-E3/52?
For technical support, including SMBG7.0A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.0A-E3/52 requirements.
6.How does Aetrix verify that SMBG7.0A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG7.0A-E3/52 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 SMBG7.0A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG7.0A-E3/52?
All SMBG7.0A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.0A-E3/52, 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 SMBG7.0A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG7.0A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.0A-E3/52 Tags
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