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Vishay General Semiconductor - Diodes Division SMBG7.0CAHE3/52
- Part No.:
- SMBG7.0CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG7.0CAHE3/52.pdf
- Description:
- TVS DIODE 7VWM 12VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,146
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Product details
Overview
SMBG7.0CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 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 - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBG7.0CAHE3/52 datasheet, SMBG7.0CAHE3/52 pinout, SMBG7.0CAHE3/52 application, or SMBG7.0CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.55), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with no polarity marking on the device body. Its glass-passivated junction enables fast response time (<1 ns) and stable breakdown characteristics across -55 °C to +150 °C operating junction temperature range.
The SMBG7.0CAHE3/52 delivers 600 W peak pulse power under standardized 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting robust surge handling in compact surface-mount form.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - maximum continuous reverse working voltage before clamping begins |
| VBR (min/max) | 7.78 V / 8.60 V at 10 mA - ensures reliable turn-on within tight tolerance band for predictable protection threshold |
| VC @ IPPM | 12.0 V at 50.0 A - limits transient voltage seen by downstream ICs to safe level during 10/1000 μs surge |
| PPPM | 600 W - peak surge power handling capacity compliant with IEC 61000-4-5 Level 4 requirements |
| IPPM | 50.0 A - peak pulse current supported without degradation under defined waveform conditions |
| TJ max | +150 °C - enables operation in under-hood automotive environments and high-temperature industrial enclosures |
| MSL Level | Level 1 per J-STD-020 - allows unlimited floor life and standard reflow without baking preconditioning |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking; matte tin-plated leads, RoHS-compliant, AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically - bidirectional clamping allows connection across any two points needing surge suppression without orientation concern |
| Case (body) | Thermal and mechanical interface | Exposed metal slug provides low-thermal-resistance path to PCB copper; requires 0.2" × 0.2" (5.0 mm × 5.0 mm) pad per terminal for rated power dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage current over temperature and lifetime |
| 600 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive equipment |
| Low clamping voltage ratio | VC/VBR ≈ 1.55 - minimizes overvoltage stress on protected ICs during transient events |
| MSL Level 1 rating | Enables direct placement into reflow soldering process without moisture-sensitive handling restrictions |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role: Bidirectional clamping element placed directly at connector entry point or IC pin. Use Value: Limits transient voltage to ≤12.0 V during 50 A surges, preserving signal integrity and preventing latch-up in 3.3 V/5 V microcontrollers. | Use Scenario: Shielding digital input/output channels of programmable logic controllers from inductive switching spikes and lightning-induced surges. IC Role / Device Role: Primary surge suppression component mounted on field-side PCB traces before optocoupler or isolator stage. Use Value: Withstands repetitive 600 W pulses at 0.01% duty cycle, enabling reliable operation in factory automation environments with frequent motor switching. |
| Consumer USB Port Protection | Telecom Line Interface Protection |
Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) and VBUS against ESD events per IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact). IC Role / Device Role: Low-capacitance bidirectional TVS placed adjacent to USB connector with minimal trace length. Use Value: Clamps ESD transients within <1 ns while maintaining signal fidelity - junction capacitance not specified but typical for SMBG family is <100 pF at 0 V bias. | Use Scenario: Protecting Ethernet PHY interfaces and analog telephone line drivers from induced surges in building-wide telecom infrastructure. IC Role / Device Role: Secondary-level protection device installed after gas discharge tube (GDT) primary stage in hybrid protection circuits. Use Value: Provides precise low-voltage clamping (7.0 V VWM) to prevent damage to sensitive line drivers while coordinating with upstream GDT for high-energy diversion. |
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-E3/52 | Same VWM (7.0 V), higher PPPM = 600 W, but SMBJ package (DO-214AB) has larger footprint and higher RθJA (110 °C/W) | Less suitable for space-constrained automotive modules; better for industrial boards with larger thermal pads | Select when board layout allows larger package and higher thermal margin is needed |
| 1.5SMC7.0CA | Same electrical specs, but SMC (DO-214AB) package - identical outline to SMBJ but different branding; not AEC-Q101 qualified | Not approved for automotive use; limited to commercial/industrial grade applications | Select only for non-automotive designs where AEC-Q101 compliance is not required |
Compared with SMBG7.0CAHE3/52, SMBJ7.0CA-E3/52 offers identical clamping performance but requires more PCB area and delivers lower thermal efficiency, while 1.5SMC7.0CA lacks automotive qualification and traceability - making SMBG7.0CAHE3/52 the optimal choice for space-limited, AEC-Q101–mandated designs.
Availability
SMBG7.0CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface circuits requiring stable component supply, full traceability, and AEC-Q101 compliance.
Supply support for SMBG7.0CAHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMBG series is engineered specifically for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, low-profile packaging, and precise clamping performance for signal and power line protection.
FAQ
What is the clamping voltage of SMBG7.0CAHE3/52 at its rated peak pulse current?
The SMBG7.0CAHE3/52 has a maximum clamping voltage (VC) of 12.0 V at 50.0 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and ensures downstream circuitry remains within safe operating limits during surge events. The SMBG7.0CAHE3/52 achieves this with a clamping ratio of approximately 1.55 relative to its minimum breakdown voltage.
Is SMBG7.0CAHE3/52 suitable for automotive applications?
Yes, SMBG7.0CAHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, ADAS sensors, and infotainment interfaces. Its construction includes glass-passivated junctions, matte tin-plated leads compliant with JESD 22-B102, and MSL Level 1 handling - all verified per automotive reliability test protocols. The SMBG7.0CAHE3/52 meets stringent requirements for temperature cycling, humidity resistance, and surge endurance in vehicular environments.
Does SMBG7.0CAHE3/52 have polarity markings?
No, SMBG7.0CAHE3/52 is a bidirectional TVS diode and carries no polarity marking on its body. Unlike unidirectional variants (e.g., SMBG7.0A), the "CA" suffix indicates symmetrical clamping behavior in both directions, eliminating orientation concerns during placement. This simplifies PCB layout and reduces assembly errors in differential or AC-coupled signal paths where polarity is undefined.
What is the maximum operating temperature for SMBG7.0CAHE3/52?
The SMBG7.0CAHE3/52 supports an operating junction temperature range of -55 °C to +150 °C, with storage temperature matching this span. This wide range enables deployment in under-hood automotive locations, industrial motor drives, and outdoor telecom equipment. Derating curves in the datasheet confirm usable pulse power down to 50% at 125 °C ambient, ensuring functional safety margins in thermally demanding systems using SMBG7.0CAHE3/52.
How does the SMBG7.0CAHE3/52 package differ from SMBJ or SMC equivalents?
The SMBG7.0CAHE3/52 uses the SMBG (DO-215AA) package - a low-profile variant with 0.130"–0.155" body width and optimized thermal slug design - differing from SMBJ (DO-214AB) and SMC (DO-214AB) which share identical outlines but higher thermal resistance (RθJA = 110 °C/W). The SMBG7.0CAHE3/52's smaller footprint and lower RθJA (100 °C/W) make it preferable for dense automotive PCBs where space and thermal performance are critical constraints.
SMBG7.0CAHE3/52 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG7.0CAHE3/52 FAQ
1.How can I place an order for SMBG7.0CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG7.0CAHE3/52 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 SMBG7.0CAHE3/52 reliable?
The price and inventory of SMBG7.0CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG7.0CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG7.0CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG7.0CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG7.0CAHE3/52?
SMBG7.0CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG7.0CAHE3/52 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 SMBG7.0CAHE3/52?
For technical support, including SMBG7.0CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG7.0CAHE3/52 requirements.
6.How does Aetrix verify that SMBG7.0CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG7.0CAHE3/52 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 SMBG7.0CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG7.0CAHE3/52?
All SMBG7.0CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG7.0CAHE3/52, 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 SMBG7.0CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBG7.0CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG7.0CAHE3/52 Tags
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