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Vishay General Semiconductor - Diodes Division SMBG7.0AHE3/52
- Part No.:
- SMBG7.0AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.0AHE3/52.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,463
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Product details
Overview
SMBG7.0AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) 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, 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 - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG7.0AHE3/52 datasheet, SMBG7.0AHE3/52 pinout, SMBG7.0AHE3/52 application, or SMBG7.0AHE3/52 equivalent, key selection criteria include clamping performance under 50 A surge, AEC-Q101 qualification for automotive reliability, unidirectional polarity with cathode band marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector: when reverse voltage exceeds VBR, it avalanches to clamp transients below 12.0 V while sustaining 50.0 A peak pulse current. Its glass-passivated junction ensures stable breakdown and low leakage (<800 μA at VWM), and thermal resistance (RθJA = 100 °C/W) supports operation up to +150 °C junction temperature.
The device complies with ANSI/IEEE C62.35 for surge suppression, meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and is qualified to AEC-Q101 - confirming suitability for automotive under-hood and infotainment systems where repetitive ESD and load-dump immunity are required.
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 10 mA - Ensures reliable avalanche initiation across process variation |
| VC @ IPPM | 12.0 V at 50.0 A - Limits downstream IC voltage stress during 10/1000 μs surge events |
| PPPM | 600 W - Sustains high-energy transients without failure under defined waveform and duty cycle (0.01 %) |
| IFSM | 100 A - Withstands 8.3 ms half-sine surge, critical for automotive load-dump protection |
| Junction Temp Range | −55 °C to +150 °C - Enables deployment in engine control units and industrial motor drives |
| Leakage Current | <800 μA at 7.0 V - Minimizes standby power loss in battery-powered sensor nodes |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by molded band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line; conducts during overvoltage to shunt energy to ground |
| Anode (unmarked end) | Reference/ground terminal | Typically tied to system ground or low-impedance return path for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| 600 W peak pulse power | Handles ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surge events without degradation |
| Fast response time (<1 ps) | Clamps transients before sensitive CMOS inputs reach destructive voltage thresholds |
| Low incremental surge resistance | Minimizes VC overshoot during high di/dt events, improving protection margin |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking, reducing manufacturing overhead |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 5 V or 12 V supply rails in engine control modules against load-dump and alternator ripple. IC Role / Device Role: Unidirectional shunt TVS placed between rail and chassis ground. Use Value: Clamps surges to ≤12.0 V, preventing damage to microcontrollers and CAN transceivers rated for 16 V absolute max. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) and digital I/O (e.g., RS-485) in PLC I/O modules. IC Role / Device Role: Point-of-entry TVS on field-side traces before isolation barrier. Use Value: Limits induced lightning/ESD transients to <12.0 V, preserving signal integrity and avoiding latch-up in precision ADCs. |
| Consumer Device USB Port Protection | Telecom Base Station DC Feeder Protection |
Use Scenario: Guarding USB VBUS and D+/D− lines in portable media players against ESD and hot-plug transients. IC Role / Device Role: Discrete unidirectional TVS on each line referenced to local ground. Use Value: Sub-12 V clamping prevents gate oxide rupture in USB PHY transceivers while maintaining signal rise/fall times. | Use Scenario: Protecting −48 V DC power feeds entering telecom base station cabinets from induced surges. IC Role / Device Role: High-power unidirectional TVS mounted at cabinet entry point before DC-DC converters. Use Value: Absorbs 600 W surges without failure, ensuring uninterrupted operation during outdoor lightning events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A-E3/52 | Same VWM (7.0 V), but lower PPPM = 600 W (same), higher VC = 12.5 V at 48.2 A; identical SMB package and AEC-Q101 qualification | Marginally higher clamping voltage reduces protection margin for 5 V logic; otherwise interchangeable in non-critical 12 V systems | Select SMBG7.0AHE3/52 when tighter clamping (12.0 V vs. 12.5 V) is required for 5 V interface protection. |
| 1.5SMC7.0A | Same VWM/VBR specs, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), higher IFSM = 200 A, same PPPM = 600 W | Requires larger PCB footprint; preferred where higher surge endurance (e.g., outdoor telecom) justifies layout change | Choose 1.5SMC7.0A only if board space allows and higher single-pulse surge margin (200 A IFSM) is mandatory. |
Compared with SMBJ7.0A-E3/52 and 1.5SMC7.0A, SMBG7.0AHE3/52 delivers the lowest clamping voltage (12.0 V) in the smallest footprint (SMBG), making it optimal for space-constrained automotive and industrial PCBs requiring precise overvoltage limiting.
Availability
SMBG7.0AHE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and consumer USB power management systems requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBG7.0AHE3/52 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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with emphasis on reliability, power handling, and automotive qualification.
The SMBG series was developed specifically for high-reliability transient suppression in space-constrained automotive and industrial environments, combining AEC-Q101 validation with low-profile SMBG packaging and precise clamping performance.
FAQ
What is the clamping voltage of SMBG7.0AHE3/52 and how is it measured?
The SMBG7.0AHE3/52 has a maximum clamping voltage (VC) of 12.0 V at 50.0 A peak pulse current, tested with a 10/1000 μs waveform per IEC 61000-4-5. This value represents the upper limit of voltage seen by downstream circuitry during a standardized surge event and is guaranteed across temperature and production lot.
Is SMBG7.0AHE3/52 suitable for automotive applications?
Yes, SMBG7.0AHE3/52 is AEC-Q101 qualified and rated for operation from −55 °C to +150 °C. Its glass-passivated junction, MSL Level 1 rating, and compliance with ANSI/IEEE C62.35 make SMBG7.0AHE3/52 appropriate for engine control units, body electronics, and ADAS sensor modules.
What does the "HE3" suffix indicate in SMBG7.0AHE3/52?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification (per Vishay's ordering nomenclature). "H" indicates AEC-Q101 qualification, "E3" specifies RoHS-compliant, industrial-grade matte tin plating - distinguishing it from non-automotive variants like "E3/52".
How does SMBG7.0AHE3/52 differ from bidirectional TVS diodes like SMBG7.0CA?
SMBG7.0AHE3/52 is unidirectional and features a cathode band for polarity-sensitive placement; SMBG7.0CA is bidirectional with no polarity marking and symmetric breakdown in both directions. SMBG7.0AHE3/52 is used on DC rails where directionality matters; SMBG7.0CA suits AC-coupled or differential signal lines.
What PCB pad layout is recommended for SMBG7.0AHE3/52 to achieve rated power dissipation?
Vishay specifies mounting SMBG7.0AHE3/52 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve full 600 W peak pulse power rating and thermal performance. Smaller pads reduce surge capability and increase junction temperature during repetitive events.
SMBG7.0AHE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG7.0AHE3/52 FAQ
1.How can I place an order for SMBG7.0AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.0AHE3/52 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 SMBG7.0AHE3/52 reliable?
The price and inventory of SMBG7.0AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.0AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG7.0AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.0AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.0AHE3/52?
SMBG7.0AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.0AHE3/52 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 SMBG7.0AHE3/52?
For technical support, including SMBG7.0AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.0AHE3/52 requirements.
6.How does Aetrix verify that SMBG7.0AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG7.0AHE3/52 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 SMBG7.0AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG7.0AHE3/52?
All SMBG7.0AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.0AHE3/52, 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 SMBG7.0AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG7.0AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.0AHE3/52 Tags
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