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Vishay General Semiconductor - Diodes Division SMBG7.0CA-E3/5B
- Part No.:
- SMBG7.0CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.0CA-E3/5B.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,191
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Product details
Overview
SMBG7.0CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) 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 50.0 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform), making it suitable for automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the SMBG7.0CA-E3/5B datasheet, SMBG7.0CA-E3/5B pinout, SMBG7.0CA-E3/5B application, or SMBG7.0CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.71), junction temperature range (–55 °C to +150 °C), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable avalanche characteristics, while the low incremental surge resistance enables effective energy diversion during fast transients such as ESD or inductive switching spikes.
The SMBG7.0CA-E3/5B is rated for 600 W peak pulse power under 10/1000 μs waveform at 0.01 % duty cycle and exhibits 100 °C/W typical thermal resistance (junction-to-ambient) when mounted on standard 0.2" × 0.2" copper pads - critical for thermal management in high-reliability automotive and industrial PCB layouts.
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 voltage range ensures reliable turn-on across process variation. |
| VC @ IPPM | 12.0 V at 50.0 A - Clamping voltage under full-rated surge; determines maximum stress imposed on protected circuitry. |
| IPPM | 50.0 A - Peak pulse current handling capacity with 10/1000 μs waveform; defines transient energy absorption limit. |
| PPPM | 600 W - Peak pulse power rating; sets maximum transient energy dissipation capability per event. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path | Both terminals function identically; transient current flows symmetrically regardless of polarity - eliminates orientation concerns during placement. |
| Case (body) | Thermal and mechanical interface | Exposed metal slug provides primary thermal conduction path to PCB copper; requires minimum 5.0 mm × 5.0 mm pad per terminal for rated power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 surges without derating in standard layouts. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control units, ADAS sensors, and body electronics modules. |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes overvoltage exposure to downstream ICs compared to higher-ratio TVS devices. |
| MSL Level 1 (260 °C peak reflow) | Supports lead-free reflow soldering without preconditioning or special handling requirements. |
| Glass-passivated junction | Ensures stable, repeatable breakdown voltage and long-term reliability under repeated surge stress. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor signal lines (e.g., pressure, temperature) in vehicle ECUs from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector or IC input to shunt surge energy before it reaches sensitive analog front-ends or transceivers. Use Value: Maintains signal integrity by limiting transient overshoot to ≤12.0 V while surviving repetitive 600 W pulses - critical for ASIL-B compliant systems. | Use Scenario: Shielding digital and analog inputs/outputs of programmable logic controllers from field-induced surges in factory automation environments. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC I/O channels, coordinated with upstream fusing and filtering to meet IEC 61000-4-4/5 immunity requirements. Use Value: Enables compliance with industrial surge immunity standards using a single discrete component with no polarity sensitivity or timing delay. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHY interfaces, RS-485 transceivers, or PoE injectors against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line transient suppressor on differential data lines, operating in conjunction with common-mode chokes and secondary TVS arrays. Use Value: Provides sub-100 ns response time and symmetrical clamping to preserve differential signal fidelity during multi-kV transients. | Use Scenario: Input-stage surge suppression on AC-DC adapter primary-side rectifier outputs or secondary-side 5/12 V rails feeding USB or display circuits. IC Role / Device Role / Timing Role: Secondary-level TVS placed after bulk capacitance to absorb residual switching spikes and ESD events not filtered by upstream components. Use Value: Prevents latch-up or gate oxide damage in downstream DC-DC controllers and LDOs by limiting voltage excursions to ≤12.0 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0CA-E3/5B | Same VWM (7.0 V) and VC (12.0 V), but lower PPPM (600 W vs. SMBJ's 600 W - identical rating), different package (SMB vs. SMBG); SMBJ has slightly higher RθJA (110 °C/W). | SMBJ series uses DO-214AA package with larger thermal pad area but less optimized for ultra-thin automotive modules. | Select SMBG7.0CA-E3/5B when board space is constrained and AEC-Q101 qualification is mandatory; SMBJ7.0CA-E3/5B may be preferred where legacy footprint compatibility is required. |
| 1.5KE7.0CA | Higher PPPM (1500 W), axial-leaded DO-15 package, slower thermal response, no AEC-Q101 qualification, VC = 12.0 V same. | Designed for through-hole prototyping or high-energy industrial mains protection, not automotive SMT production. | Choose SMBG7.0CA-E3/5B for automated SMT assembly, AEC-Q101 compliance, and space-constrained PCBs; 1.5KE7.0CA suits cost-sensitive, non-automotive, high-surge applications. |
Compared with SMBJ7.0CA-E3/5B and 1.5KE7.0CA, the SMBG7.0CA-E3/5B delivers identical clamping performance in a smaller, AEC-Q101-qualified surface-mount package optimized for automotive and industrial SMT lines - offering superior thermal efficiency per unit area and guaranteed automotive reliability without layout redesign.
Availability
SMBG7.0CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 validation, and consistent 600 W surge handling.
Supply support for SMBG7.0CA-E3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and application-specific optimization.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in automotive and industrial environments, balancing compact size, AEC-Q101 compliance, and repeatable clamping performance under repetitive surge stress.
FAQ
What is the breakdown voltage range of SMBG7.0CA-E3/5B?
The SMBG7.0CA-E3/5B has a specified breakdown voltage (VBR) range of 7.78 V to 8.60 V at 10 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent turn-on behavior across manufacturing lots and temperature extremes, and is confirmed in Vishay's official datasheet revision 09-Jan-2024 (Document Number: 88456). The SMBG7.0CA-E3/5B maintains this specification under bidirectional operation.
Is SMBG7.0CA-E3/5B suitable for automotive applications?
Yes, SMBG7.0CA-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with junction temperatures up to +150 °C. Its glass-passivated junction, MSL Level 1 reflow compatibility, and bidirectional clamping make it appropriate for protecting CAN/LIN buses, sensor interfaces, and body control modules. The SMBG7.0CA-E3/5B meets all stress tests defined in the AEC-Q101 standard, including HTGB, H3TRB, and ESD.
What is the maximum clamping voltage for SMBG7.0CA-E3/5B at rated surge current?
The SMBG7.0CA-E3/5B exhibits 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 (mounted on 5.0 mm × 5.0 mm copper pads) and represents the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMBG7.0CA-E3/5B achieves a clamping ratio of 1.71 (VC/VWM), indicating efficient voltage limiting.
Does SMBG7.0CA-E3/5B have polarity markings?
No, SMBG7.0CA-E3/5B does not have polarity markings because it is a bidirectional TVS diode - both terminals are functionally identical and interchangeable. Unlike unidirectional variants (e.g., SMBG7.0A), the "CA" suffix indicates symmetrical breakdown, eliminating the need for cathode band identification. This simplifies PCB layout and automated placement for the SMBG7.0CA-E3/5B in differential or AC-coupled signal paths.
What is the thermal resistance of SMBG7.0CA-E3/5B?
The SMBG7.0CA-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal. Its junction-to-lead resistance (RθJL) is 20 °C/W, enabling efficient heat transfer to the PCB. These values are critical for calculating safe operating area under repetitive surge conditions and are validated per JEDEC JESD51 standards for the SMBG (DO-215AA) package used by the SMBG7.0CA-E3/5B.
SMBG7.0CA-E3/5B 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBG7.0CA-E3/5B FAQ
1.How can I place an order for SMBG7.0CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.0CA-E3/5B 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 SMBG7.0CA-E3/5B reliable?
The price and inventory of SMBG7.0CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.0CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG7.0CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.0CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.0CA-E3/5B?
SMBG7.0CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.0CA-E3/5B 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 SMBG7.0CA-E3/5B?
For technical support, including SMBG7.0CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.0CA-E3/5B requirements.
6.How does Aetrix verify that SMBG7.0CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG7.0CA-E3/5B 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 SMBG7.0CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG7.0CA-E3/5B?
All SMBG7.0CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.0CA-E3/5B, 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 SMBG7.0CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG7.0CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.0CA-E3/5B Tags
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