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Vishay General Semiconductor - Diodes Division SMBG8.0CA-E3/52
- Part No.:
- SMBG8.0CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG8.0CA-E3/52.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG8.0CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection on signal and power lines. It features a 8.0 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), clamping voltage of 13.6 V at 44.1 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG8.0CA-E3/52 datasheet, SMBG8.0CA-E3/52 pinout, SMBG8.0CA-E3/52 application, or SMBG8.0CA-E3/52 equivalent, this device is selected for high-reliability transient suppression in bidirectional AC-coupled interfaces, low-capacitance sensor lines, and automotive infotainment power rails where precise clamping and low leakage (<1.0 μA at VWM) are critical.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified as 8.89–9.83 V at 10 mA test current. Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance, enabling consistent clamping performance under repetitive transients.
Thermal design is supported by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with maximum junction temperature rated to +150 °C. The device meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101, confirming suitability for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing margin in protected circuit. |
| VBR (min/max) | 8.89 V / 9.83 V at 10 mA - Ensures predictable, tight-breakdown symmetry essential for bidirectional line protection. |
| VC @ IPPM | 13.6 V at 44.1 A - Clamping voltage limits transient-induced stress on downstream ICs during 10/1000 μs surges. |
| ID @ VWM | <1.0 μA - Ultra-low leakage preserves signal integrity and battery life in always-on sensor or communication circuits. |
| PPPM | 600 W - Peak pulse power rating enables handling of IEC 61000-4-5 Level 4 (4 kV) surges when properly mounted on 5.0 mm × 5.0 mm copper pads. |
| TJ max | +150 °C - Junction temperature limit supports operation in engine control units, ADAS modules, and other high-ambient automotive locations. |
| AEC-Q101 | Qualified - Confirmed reliability for automotive electronics per stress-test requirements including HTOL, TCT, and ESD. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking; case outline per Vishay spec: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H), matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current into cathode during positive transients; symmetrical with cathode for bidirectional operation. |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current into anode during negative transients; identical electrical behavior to anode due to bidirectional construction. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge immunity up to 4 kV in industrial and automotive applications. |
| AEC-Q101 qualification | Validates long-term reliability under thermal cycling, humidity, and mechanical stress for automotive ECUs and body controllers. |
| Glass passivated junction | Provides stable, repeatable avalanche characteristics and low parameter drift over lifetime and temperature. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning, reducing manufacturing complexity and cost. |
| Low profile SMBG package | Minimizes PCB footprint (4.57 mm × 3.94 mm) while maintaining thermal performance for space-constrained modules. |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair against ESD and load dump transients in vehicle networking. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt surge energy before reaching CAN transceiver. Use Value: Maintains signal integrity with <1.0 μA leakage at 8.0 V, avoids false triggering, and withstands repeated 10/1000 μs surges up to 600 W without degradation. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-capacitance (typ. ~300 pF at 0 V) TVS placed at sensor module I/O to clamp fast transients induced by nearby motor switching. Use Value: Prevents latch-up or damage to precision ADCs and op-amps while introducing negligible loading due to tight VBR tolerance (±5.3%) and low VC. |
| Consumer Audio Line Inputs | Telecom DSL/ADSL Interface |
Use Scenario: Protecting unbalanced audio inputs (RCA, 3.5 mm) in AV receivers and soundbars from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS installed inline with input coupling capacitor to absorb ±8 kV contact ESD per IEC 61000-4-2 without affecting audio bandwidth. Use Value: Delivers sub-14 V clamping at full rated current, preserving dynamic range and avoiding audible pop/click distortion during transient events. | Use Scenario: Shielding ADSL line drivers and receivers from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary surge protector located at line-side transformer secondary, coordinated with gas discharge tube (GDT) for staged protection. Use Value: Fast response time (<1 ns) and low VC ensure semiconductor front-end remains within safe SOA during multi-kV transients, extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Same VWM (8.0 V), same SMB package, but lower PPPM = 600 W (same rating), slightly higher VC = 13.6 V (identical), different thermal resistance (RθJA = 110 °C/W vs. 100 °C/W). | Identical use cases; minor derating needed above 75 °C ambient due to higher RθJA. | Select SMBJ8.0CA only if legacy design uses SMBJ footprint and thermal margin allows. |
| SMCJ8.0CA | Same VWM and VBR, but larger SMC (DO-214AB) package, higher PPPM = 1500 W, lower VC = 12.0 V, and higher IPPM = 125 A. | Used where higher surge energy absorption is required (e.g., power supply inputs), not suitable for space-constrained signal lines. | Choose SMCJ8.0CA only when PCB layout permits larger footprint and system-level surge testing exceeds 600 W capability. |
Compared with SMBJ8.0CA and SMCJ8.0CA, SMBG8.0CA-E3/52 offers optimal balance of compact SMBG footprint, AEC-Q101 qualification, and verified 600 W surge handling-making it preferred for automotive signal-line protection where board space and qualification rigor are prioritized over raw power rating.
Availability
SMBG8.0CA-E3/52 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and telecom line interface modules requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 assurance.
Supply support for SMBG8.0CA-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series is engineered for high-density surface-mount transient suppression in automotive, industrial, and communications equipment-designed to meet stringent AEC-Q101, JEDEC, and IEC standards without sacrificing compactness or performance.
FAQ
What is the breakdown voltage range of SMBG8.0CA-E3/52?
The SMBG8.0CA-E3/52 has a guaranteed breakdown voltage (VBR) range of 8.89 V to 9.83 V at 10 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures predictable, symmetrical clamping in both directions and supports reliable coordination with downstream ICs' absolute maximum ratings. The value is confirmed in Vishay's official datasheet revision 09-Jan-2024, Document Number 88456.
Is SMBG8.0CA-E3/52 suitable for automotive applications?
Yes, SMBG8.0CA-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood and cabin modules. Its construction includes glass-passivated junction, MSL Level 1 moisture sensitivity, and operation up to +150 °C junction temperature-meeting requirements for engine control units, ADAS cameras, and infotainment systems. Vishay documents this qualification in the "MECHANICAL DATA" section of the SMBG5.0A–SMBG188CA datasheet.
What is the clamping voltage of SMBG8.0CA-E3/52 at its rated peak pulse current?
The SMBG8.0CA-E3/52 clamps to a maximum of 13.6 V at its rated peak pulse current of 44.1 A (10/1000 μs waveform). This value is measured under standardized conditions with 0.2" × 0.2" copper pads per terminal and defines the upper voltage limit imposed on protected circuitry during surge events. It is listed in the "ELECTRICAL CHARACTERISTICS" table for SMBG8.0CA in the Vishay datasheet.
Does SMBG8.0CA-E3/52 have polarity markings?
No, SMBG8.0CA-E3/52 is a bidirectional TVS and carries no polarity marking on the package. Unlike unidirectional variants (e.g., SMBG8.0A), which feature a cathode band, the CA suffix indicates symmetrical conduction-meaning both terminals function identically as either anode or cathode depending on transient polarity. This is confirmed in the "MECHANICAL DATA" section and "DEVICES FOR BIDIRECTION APPLICATIONS" note of the datasheet.
What is the maximum reverse leakage current for SMBG8.0CA-E3/52 at its stand-off voltage?
The SMBG8.0CA-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 8.0 V stand-off voltage (VWM), measured at 25 °C. This ultra-low leakage preserves signal fidelity and minimizes standby power loss-critical for battery-powered sensors and always-on communication interfaces. The specification appears in the "ELECTRICAL CHARACTERISTICS" table under the SMBG8.0CA row.
SMBG8.0CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 44.1A
- 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)
SMBG8.0CA-E3/52 FAQ
1.How can I place an order for SMBG8.0CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG8.0CA-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 SMBG8.0CA-E3/52 reliable?
The price and inventory of SMBG8.0CA-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 SMBG8.0CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG8.0CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG8.0CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG8.0CA-E3/52?
SMBG8.0CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG8.0CA-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 SMBG8.0CA-E3/52?
For technical support, including SMBG8.0CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG8.0CA-E3/52 requirements.
6.How does Aetrix verify that SMBG8.0CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG8.0CA-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 SMBG8.0CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG8.0CA-E3/52?
All SMBG8.0CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG8.0CA-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 SMBG8.0CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBG8.0CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG8.0CA-E3/52 Tags
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