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Vishay General Semiconductor - Diodes Division SMBG8.0A-E3/52
- Part No.:
- SMBG8.0A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG8.0A-E3/52.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG8.0A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 1.0 mA, 13.6 V clamping voltage (VC) at 44.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and DC power rail protection.
For engineers reviewing the SMBG8.0A-E3/52 datasheet, SMBG8.0A-E3/52 pinout, SMBG8.0A-E3/52 application, or SMBG8.0A-E3/52 equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) package compatibility, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.47), and 100 A IFSM surge capability for inductive load switching transients.
Technical Context
This TVS diode operates as a clamping-type protector, leveraging an avalanche junction to divert transient energy above VBR while maintaining low dynamic impedance. Its glass-passivated chip ensures stable leakage performance and long-term reliability under repetitive surge stress.
Designed for surface-mount assembly on 5.0 mm × 5.0 mm copper pads per terminal, it delivers thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling operation up to +150 °C junction temperature with derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 8.89 V / 9.83 V at 1.0 mA - defines precise avalanche onset threshold for design margining |
| VC @ IPPM | 13.6 V at 44.1 A - clamped voltage during 600 W transient, limiting downstream IC stress |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform, duty cycle ≤ 0.01 % |
| IFSM | 100 A - non-repetitive forward surge current rating (8.3 ms half-sine), critical for relay/coil suppression |
| TJ max | +150 °C - maximum junction temperature, supporting under-hood automotive and industrial environments |
| Leakage ID | ≤ 50 μA at VWM - minimal standby power loss and signal integrity impact in high-impedance circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount gull-wing leaded case with matte tin-plated terminals, MSL Level 1 (260 °C reflow peak), UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage events |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage across lifetime and environmental stress |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges without degradation |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes voltage overshoot during fast transients, protecting 5 V and 3.3 V logic interfaces |
| MSL Level 1 compliance | Enables standard SMT reflow without moisture sensitivity concerns or baking requirements |
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 inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach sensitive input circuitry. Use Value: Limits clamped voltage to 13.6 V, well below typical 16 V absolute max ratings of automotive transceivers and ADC front-ends. | Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to field wiring surges from motor contactors and solenoids. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input terminals, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Withstands 100 A surge (IFSM) and maintains <50 μA leakage at 8 V, preserving input logic thresholds and reducing false triggering. |
| DC Power Rail Protection | Consumer USB Port ESD Suppression |
Use Scenario: Secondary protection on 5 V or 12 V DC power distribution networks feeding microcontrollers and PMICs in embedded systems. IC Role / Device Role / Timing Role: Fast-response shunt device absorbing energy from nearby switching noise or accidental overvoltage events. Use Value: 600 W pulse rating and 13.6 V clamping enable robust hold-off against sustained 12 V rail faults while avoiding latch-up in downstream regulators. | Use Scenario: Board-level ESD protection on USB 2.0 VBUS and D+/D− lines in portable electronics where space and capacitance are constrained. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on VBUS line only (not data lines), grounded to shield common-mode transients. Use Value: 13.6 V clamping prevents damage to USB power switches during ±8 kV contact ESD events per IEC 61000-4-2, with no signal distortion on data paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Same VWM/VBR/VC, but SMBJ package (DO-214AA); 10% higher RθJA (110 °C/W) | Less thermal margin in high-density layouts; identical electrical performance | Select SMBJ8.0A-E3/52 only if legacy PCB uses DO-214AA footprint and thermal derating is verified. |
| 1.5SMC8.0A | Same electrical specs, but larger SMC (DO-214AB) package; 2× board area, higher IPPM (50 A vs. 44.1 A) | Better surge endurance in high-energy industrial environments; not suitable for space-constrained designs | Choose 1.5SMC8.0A when layout allows larger footprint and higher single-pulse robustness is required. |
Compared with SMBJ8.0A-E3/52 and 1.5SMC8.0A, SMBG8.0A-E3/52 offers optimal balance of compact DO-215AA size, AEC-Q101 qualification, and thermal performance for automotive and dense industrial PCBs - making it preferred where board space, reliability certification, and thermal efficiency are jointly prioritized.
Availability
SMBG8.0A-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and DC power rail protection requiring stable component supply, AEC-Q101 compliance, and consistent surge performance across production batches.
Supply support for SMBG8.0A-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, precision, and automotive-grade qualification.
The SMBG series is engineered specifically for high-reliability surface-mount transient suppression in space-constrained, thermally demanding applications - targeting automotive, industrial control, and telecom infrastructure where AEC-Q101 validation and low-profile packaging are mandatory.
FAQ
What is the clamping voltage of SMBG8.0A-E3/52 and how is it measured?
The SMBG8.0A-E3/52 has a maximum clamping voltage (VC) of 13.6 V, measured at its rated peak pulse current (IPPM) of 44.1 A using a 10/1000 μs waveform. This value reflects the actual voltage seen by downstream circuitry during a standardized surge event and is guaranteed per Vishay's datasheet test conditions on page 2 of document 88456. The SMBG8.0A-E3/52 achieves this with low dynamic impedance to minimize overshoot.
Is SMBG8.0A-E3/52 suitable for automotive applications?
Yes, SMBG8.0A-E3/52 is AEC-Q101 qualified, explicitly listed in Vishay's mechanical data section (page 1) as meeting the standard for transient voltage suppressors. It supports operating junction temperatures up to +150 °C and is rated for load dump and inductive switching transients common in 12 V vehicle systems - making SMBG8.0A-E3/52 appropriate for engine control units, body electronics, and ADAS sensor modules.
What does the "E3/52" suffix mean in SMBG8.0A-E3/52?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "/52" specifies the preferred packaging: 750-piece quantity on 7-inch plastic tape-and-reel. This matches Vishay's ordering information table (page 3), confirming SMBG8.0A-E3/52 is supplied in standard SMT-compatible format with J-STD-002 solderability compliance and JESD201 Class 2 whisker resistance.
How does SMBG8.0A-E3/52 differ from bidirectional variants like SMBG8.0CA?
SMBG8.0A-E3/52 is unidirectional, featuring cathode band marking and conducting only in reverse avalanche mode - ideal for DC-biased lines like power rails or single-ended signals. In contrast, SMBG8.0CA is bidirectional, symmetric in both directions, and used for AC-coupled or differential lines such as RS-485. Their VBR, VC, and PPPM are identical, but polarity and marking differ - SMBG8.0A-E3/52 must not be substituted for SMBG8.0CA without circuit review.
What is the thermal resistance of SMBG8.0A-E3/52 and why does it matter?
SMBG8.0A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, per Vishay's Thermal Characteristics table (page 3). These values determine how effectively heat from surge dissipation transfers to PCB copper and ambient air - critical for sustaining repeated transients without exceeding +150 °C junction temperature. Proper 5.0 mm × 5.0 mm pad layout is required to achieve the rated RθJA.
SMBG8.0A-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBG8.0A-E3/52 FAQ
1.How can I place an order for SMBG8.0A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG8.0A-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 SMBG8.0A-E3/52 reliable?
The price and inventory of SMBG8.0A-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 SMBG8.0A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG8.0A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG8.0A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG8.0A-E3/52?
SMBG8.0A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG8.0A-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 SMBG8.0A-E3/52?
For technical support, including SMBG8.0A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG8.0A-E3/52 requirements.
6.How does Aetrix verify that SMBG8.0A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG8.0A-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 SMBG8.0A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG8.0A-E3/52?
All SMBG8.0A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG8.0A-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 SMBG8.0A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG8.0A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG8.0A-E3/52 Tags
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