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Vishay General Semiconductor - Diodes Division SMBG7.0AHE3/5B
- Part No.:
- SMBG7.0AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.0AHE3/5B.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,932
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Product details
Overview
SMBG7.0AHE3/5B 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 in automotive sensor signal lines, industrial I/O ports, and DC power rail protection.
For engineers reviewing the SMBG7.0AHE3/5B datasheet, SMBG7.0AHE3/5B pinout, SMBG7.0AHE3/5B application, or SMBG7.0AHE3/5B equivalent, key selection criteria include clamping performance under 50 A surge, AEC-Q101 qualification for automotive use, 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 clamp, responding to transients in <1 ps with low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.55). Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable breakdown behavior across temperature.
The device is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and is qualified to AEC-Q101 - confirming suitability for under-hood automotive environments where thermal cycling and mechanical shock are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum continuous reverse operating voltage before clamping begins; sets threshold for normal circuit operation. |
| 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 limits downstream IC stress during 10/1000 μs surge events. |
| PPPM | 600 W - Peak pulse power handling capability defines transient energy absorption capacity. |
| IPPM | 50.0 A - Peak pulse current rating determines survivability against common ISO 7637-2 or IEC 61000-4-5 surges. |
| TJ max. | +150 °C - Enables use in high-temperature automotive and industrial enclosures without derating. |
| Leakage ID | ≤1.0 μA at VWM - Minimal standby power loss and negligible impact on high-impedance signal paths. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by molded band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or return path; completes clamping loop when cathode is tied to protected line. |
| Cathode | High-side connection; marked with band | Attached to protected signal/power line; conducts surge current to ground during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term reliability and stable VBR performance under humidity and thermal stress. |
| 600 W peak pulse power (10/1000 μs) | Withstands repeated load-dump and inductive switching transients in 12 V/24 V vehicle systems. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C without popcorn effect or delamination. |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes voltage overshoot during clamping, protecting 5 V and 3.3 V logic-level components. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ESD and load dump in engine compartments. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between signal line and chassis ground, clamping transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to microcontrollers and analog front-ends exposed to ISO 10605 ±30 kV ESD and ISO 7637-2 Pulse 5a load dump. | Use Scenario: Safeguarding PLC digital input modules and fieldbus interfaces (RS-485, Profibus) against induced surges from nearby motor switching. IC Role / Device Role / Timing Role: Standoff protector on each channel input, absorbing repetitive 10/1000 μs surges up to 50 A without degradation. Use Value: Eliminates need for external series impedance or gas discharge tubes, reducing BOM count and PCB footprint. |
| DC Power Rail Protection | Consumer Device USB/Power Input |
Use Scenario: Clamping 12 V or 24 V supply rails in telematics units and infotainment head units against battery reversal and jump-start spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power entry point, coordinated with upstream fuse and downstream LDO. Use Value: Limits rail voltage to ≤12.0 V during 50 A surge, preventing overvoltage shutdown or regulator failure. | Use Scenario: Protecting USB-C PD input stages and internal PMICs in portable medical monitors and smart home hubs from AC adapter transients. IC Role / Device Role / Timing Role: Secondary protection stage after primary MOV or polymer PTC, providing precise low-VC clamping. Use Value: Maintains system uptime by avoiding brownout resets during 1 kV/500 A surge events per IEC 61000-4-5. |
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-E3/5B | Same VWM (7.0 V), but lower PPPM = 600 W (same), higher VC = 12.5 V at 48.2 A; SMB (DO-214AA) package, slightly larger footprint. | Not AEC-Q101 qualified; intended for industrial/commercial use only. | Select SMBJ7.0A-E3/5B only if AEC-Q101 compliance is not required and board space allows DO-214AA layout. |
| 1.5SMC7.0A | Same VWM and VBR, but higher VC = 12.6 V at 47.6 A; SMC (DO-214AB) package, 2.5× larger thermal mass. | Lacks AEC-Q101 qualification; higher RθJA (60 °C/W vs. 100 °C/W) reduces power density efficiency. | Choose 1.5SMC7.0A only for legacy designs using SMC footprints or where higher surge repetition rate tolerance is needed. |
Compared with SMBJ7.0A-E3/5B and 1.5SMC7.0A, SMBG7.0AHE3/5B delivers identical clamping performance in a smaller DO-215AA package with automotive-grade reliability - enabling higher component density and guaranteed operation in harsh vehicular environments.
Availability
SMBG7.0AHE3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O port hardening, and DC power rail safeguarding requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG7.0AHE3/5B 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 and application-specific performance.
The SMBG series is engineered for high-reliability surface-mount transient suppression in automotive and industrial systems, prioritizing AEC-Q101 compliance, low-profile packaging, and consistent clamping behavior across temperature and lifetime.
FAQ
What is the clamping voltage of SMBG7.0AHE3/5B at its rated peak pulse current?
The SMBG7.0AHE3/5B has a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current of 50.0 A with a 10/1000 μs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88456), ensuring predictable overvoltage limiting for downstream 5 V and 3.3 V components in the SMBG7.0AHE3/5B protection circuit.
Is SMBG7.0AHE3/5B qualified for automotive applications?
Yes, SMBG7.0AHE3/5B is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 09-Jan-2024 (Document Number: 88456), footnote (1) under Mechanical Data and Ratings sections. This qualification validates its reliability for under-hood and cabin-mounted automotive electronics, including engine control, ADAS sensors, and infotainment systems using the SMBG7.0AHE3/5B.
What does the "HE3" suffix indicate in SMBG7.0AHE3/5B?
The "HE3" suffix in SMBG7.0AHE3/5B 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" or "M3". This applies directly to the SMBG7.0AHE3/5B part shipped in 13" tape-and-reel (5B).
What is the thermal resistance of SMBG7.0AHE3/5B from junction to ambient?
The typical thermal resistance from junction to ambient (RθJA) for SMBG7.0AHE3/5B is 100 °C/W, measured on a 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal, as specified in the Thermal Characteristics table of the Vishay datasheet (Document Number: 88456). This value informs thermal design margins when deploying SMBG7.0AHE3/5B in high-power or high-temperature environments.
How does SMBG7.0AHE3/5B differ from bidirectional variants like SMBG7.0CA?
SMBG7.0AHE3/5B is unidirectional with cathode band marking and forward voltage drop (~3.5 V at 50 A), while SMBG7.0CA is bidirectional with symmetrical breakdown in both polarities and no polarity marking. The SMBG7.0AHE3/5B is suited for DC-biased lines (e.g., power rails, single-ended signals), whereas SMBG7.0CA protects AC-coupled or differential lines - a functional distinction confirmed in the Vishay family datasheet for SMBG5.0A thru SMBG188CA.
SMBG7.0AHE3/5B 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)
SMBG7.0AHE3/5B FAQ
1.How can I place an order for SMBG7.0AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.0AHE3/5B 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 SMBG7.0AHE3/5B reliable?
The price and inventory of SMBG7.0AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.0AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG7.0AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.0AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.0AHE3/5B?
SMBG7.0AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.0AHE3/5B 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 SMBG7.0AHE3/5B?
For technical support, including SMBG7.0AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.0AHE3/5B requirements.
6.How does Aetrix verify that SMBG7.0AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG7.0AHE3/5B 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 SMBG7.0AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG7.0AHE3/5B?
All SMBG7.0AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.0AHE3/5B, 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 SMBG7.0AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG7.0AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.0AHE3/5B Tags
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