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Vishay General Semiconductor - Diodes Division SMBG8.0-E3/52
- Part No.:
- SMBG8.0-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG8.0-E3/52.pdf
- Description:
- TVS DIODE 8VWM 15VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,058
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Product details
Overview
SMBG8.0-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed to protect sensitive electronics against inductive switching transients and ESD events. It features 600 W peak pulse power (10/1000 µs), 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR at 1 mA), and clamps to ≤13.6 V at 44.1 A peak pulse current - used in automotive sensor signal lines and industrial I/O protection.
For engineers reviewing the SMBG8.0-E3/52 datasheet, SMBG8.0-E3/52 pinout, SMBG8.0-E3/52 application, or SMBG8.0-E3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and 150 °C maximum junction temperature for under-hood and high-reliability embedded designs.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration during overvoltage events, with fast response time (<1 ns) and low incremental surge resistance enabling effective suppression of 10/1000 µs transients. Its glass-passivated junction ensures stable leakage performance and robust surge handling up to 100 A (8.3 ms half-sine).
The SMBG8.0-E3/52 is rated for -55 °C to +150 °C operating junction temperature and exhibits 100 °C/W typical thermal resistance (junction-to-ambient on 5.0 mm × 5.0 mm copper pads). It meets UL 497B recognition (QVGQ2) and complies with ANSI/IEEE C62.35 surge standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 5 V–8 V logic/sensor rails. |
| VBR (min/max) | 8.89 V / 9.83 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | ≤13.6 V at 44.1 A - Clamping voltage limits downstream IC stress during 600 W transient events; critical for 12 V system compatibility. |
| IPPM | 44.1 A - Peak pulse current capability with 10/1000 µs waveform; determines survivability against common automotive load-dump surges. |
| PPPM | 600 W - Peak pulse power rating per JEDEC-standard waveform; validates suitability for repetitive transient environments with 0.01% duty cycle. |
| TJ max | +150 °C - Enables deployment in engine control units, powertrain modules, and other high-temperature automotive zones. |
| Qualification | AEC-Q101 qualified - Certified for automotive-grade reliability including temperature cycling, HTRB, and surge endurance testing. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing lead frame with cathode band marking. Dimensions: 6.48 mm × 3.94 mm × 2.10 mm (L × W × H); 0.255" × 0.155" × 0.083". Matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 mechanical robustness requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to ground or lower-potential rail in unidirectional TVS configuration; enables clamping when cathode-side voltage exceeds VWM. |
| Cathode (banded end) | Reverse-biased clamping node | Connected to protected line (e.g., CAN_H, LIN, sensor output); conducts surge current to anode during overvoltage, limiting voltage to ≤13.6 V. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surge events in automotive ECUs. |
| AEC-Q101 qualification | Validates long-term reliability under automotive thermal, mechanical, and electrical stress conditions - required for Tier 1 supply chain acceptance. |
| Glass passivated junction | Ensures stable leakage current (<5 µA at VWM) and consistent VBR across temperature and lifetime. |
| MSL Level 1 (260 °C peak reflow) | Enables standard SMT assembly without pre-baking; compatible with lead-free reflow profiles per J-STD-020. |
| UL 497B recognized (QVGQ2) | Confirms compliance with telecom and industrial surge protector safety standards for both uni- and bi-directional variants. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog outputs of pressure, temperature, and position sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor output and microcontroller ADC input to limit transient voltage to ≤13.6 V. Use Value: Prevents ADC saturation and latch-up while maintaining signal integrity under 44.1 A surge events per ISO 16750-2. |
Use Scenario: Safeguarding RS-485/RS-232 data lines in PLC backplanes subjected to lightning-induced surges and ground potential differences. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between differential pair and ground to shunt common-mode transients before they reach transceiver inputs. Use Value: Maintains communication uptime by clamping to ≤13.6 V within nanoseconds, avoiding bus lockup during 600 W transients. |
| Consumer Power Adapter Input | Automotive Body Control Module |
|
Use Scenario: Secondary-side overvoltage protection on 5 V/9 V USB-C PD adapter outputs against capacitor discharge and hot-plug transients. IC Role / Device Role / Timing Role: Unidirectional TVS tied between VBUS and GND to clamp fast-rising spikes from cable inductance and connector arcing. Use Value: Limits voltage excursion to ≤13.6 V during 10/1000 µs events, protecting downstream USB controller ICs rated for 6 V absolute max. |
Use Scenario: Protecting LIN bus transceivers and LED driver outputs in door module assemblies exposed to battery reverse connection and jump-start surges. IC Role / Device Role / Timing Role: Cathode-connected to LIN line, anode to chassis ground; clamps negative transients via forward conduction and positive surges via reverse breakdown. Use Value: Ensures LIN communication continuity by surviving 100 A 8.3 ms surges (IFSM) and maintaining <5 µA leakage at 8.0 V standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Same DO-215AB (SMB) package but higher thermal resistance (110 °C/W vs. 100 °C/W); identical VWM, VBR, and VC specs. | Lower power density due to larger internal die spacing; less suitable for compact under-hood layouts with limited copper area. | Select SMBG8.0-E3/52 when board space is constrained and thermal pad area is limited to 5.0 mm × 5.0 mm. |
| 1.5SMC8.0A | DO-214AB (SMC) package (7.11 mm × 6.22 mm); same electrical specs but 1.5 kW peak power rating and higher IPPM (125 A). | Higher surge margin supports harsher environments (e.g., commercial vehicle alternator load dump), but requires larger PCB footprint. | Choose 1.5SMC8.0A only if system-level testing confirms need for >600 W clamping capacity and layout allows SMC footprint. |
Compared with SMBJ8.0A-E3/52 and 1.5SMC8.0A, SMBG8.0-E3/52 delivers optimal balance of compact DO-215AA size, AEC-Q101 qualification, and verified 600 W surge handling - making it the preferred choice for space-constrained automotive and industrial PCBs where thermal pad area is fixed at 5 mm × 5 mm.
Availability
SMBG8.0-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and consumer power adapter secondary-side surge suppression requiring stable component supply and full traceability.
Supply support for SMBG8.0-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 automotive, industrial, and computing applications.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in space-limited automotive ECUs and industrial controllers, combining AEC-Q101 qualification with optimized thermal performance in the DO-215AA footprint.
FAQ
What is the maximum clamping voltage of SMBG8.0-E3/52 at its rated peak pulse current?
The SMBG8.0-E3/52 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current (IPPM) of 44.1 A under the standard 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet (Document Number 88456, page 2) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBG8.0-E3/52 maintains this clamping performance across its full operating temperature range.
Is SMBG8.0-E3/52 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, SMBG8.0-E3/52 is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet (page 1, "FEATURES" section and page 3, "Note (1)"). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and surge endurance - validating its use in engine control units, body electronics, and ADAS modules. The SMBG8.0-E3/52 meets automotive-grade reliability requirements without derating.
What does the "E3/52" suffix indicate in SMBG8.0-E3/52?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 1A whisker resistance. The "/52" indicates packaging in 7-inch plastic tape-and-reel format with a base quantity of 750 units per reel. This ordering code aligns with Vishay's standard delivery mode for SMBG-series TVS diodes and ensures compatibility with automated SMT placement equipment.
How does the SMBG8.0-E3/52 differ from bi-directional variants like SMBG8.0CA?
The SMBG8.0-E3/52 is unidirectional, featuring a cathode band for polarity identification and conducting only in reverse breakdown (protecting against positive transients to ground). In contrast, SMBG8.0CA is bi-directional with no polarity marking and clamps both positive and negative excursions symmetrically. The SMBG8.0-E3/52 offers lower leakage (<5 µA at 8.0 V) and is preferred for DC-coupled signal lines where forward conduction must be avoided.
What is the thermal resistance (RθJA) of SMBG8.0-E3/52 under standard mounting conditions?
The SMBG8.0-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet (page 3, "THERMAL CHARACTERISTICS"). This value assumes standard FR-4 PCB with 1 oz copper and no internal thermal planes; actual RθJA improves with enhanced copper area or thermal vias. The SMBG8.0-E3/52 remains within safe operating limits up to +150 °C junction temperature.
SMBG8.0-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 40A
- 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)
SMBG8.0-E3/52 FAQ
1.How can I place an order for SMBG8.0-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG8.0-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 SMBG8.0-E3/52 reliable?
The price and inventory of SMBG8.0-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 SMBG8.0-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG8.0-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG8.0-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG8.0-E3/52?
SMBG8.0-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG8.0-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 SMBG8.0-E3/52?
For technical support, including SMBG8.0-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG8.0-E3/52 requirements.
6.How does Aetrix verify that SMBG8.0-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG8.0-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 SMBG8.0-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG8.0-E3/52?
All SMBG8.0-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG8.0-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 SMBG8.0-E3/52 part is unused and in its original packaging.
Return procedure for SMBG8.0-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG8.0-E3/52 Tags
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