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Vishay General Semiconductor - Diodes Division SMBG8.0A-E3/5B
- Part No.:
- SMBG8.0A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG8.0A-E3/5B.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,637
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Product details
Overview
SMBG8.0A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 1 mA test current, 13.6 V maximum clamping voltage (VC) at 44.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMBG8.0A-E3/5B datasheet, SMBG8.0A-E3/5B pinout, SMBG8.0A-E3/5B application, or SMBG8.0A-E3/5B equivalent, key selection criteria include clamping performance under 44.1 A surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector that clamps transient overvoltages above its breakdown threshold while maintaining low leakage (<1.0 μA at 8.0 V) in normal operation. Its glass-passivated junction ensures stable VBR tolerance (±5%) and robust surge handling up to 100 A IFSM (8.3 ms half-sine).
The device is rated for -55 °C to +150 °C operating junction temperature, exhibits 100 °C/W junction-to-ambient thermal resistance, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak, enabling reliable use in high-reliability industrial and automotive PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse working voltage before clamping begins |
| VBR (min/max) | 8.89 V / 9.83 V at 1 mA - Confirmed breakdown range ensuring predictable turn-on during transients |
| VC @ IPPM | 13.6 V at 44.1 A - Clamping voltage limits downstream IC stress during 600 W surge events |
| PPPM | 600 W - Peak pulse power handling capability with standard 10/1000 μs waveform |
| ID @ VWM | ≤1.0 μA - Ultra-low reverse leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - Enables operation in under-hood automotive and industrial environments |
| Package | SMBG (DO-215AA) - Low-profile SMD outline compatible with IPC-7351B footprint and automated pick-and-place |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing leads, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Polarity marked with cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower-potential node in unidirectional protection configuration |
| Cathode | Reverse-biased terminal | Connected to protected line (e.g., power rail or signal trace); band-marked end indicates cathode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| 600 W peak pulse power | Withstands repetitive 10/1000 μs transients at 0.01% duty cycle without degradation |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, inductive kick) |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking preconditioning |
| Glass passivated junction | Ensures stable VBR and long-term parameter stability across temperature and lifetime |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs and body control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and ground to clamp surges above 8.0 V. Use Value: Limits clamping voltage to 13.6 V at 44.1 A, preventing damage to downstream 16 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Point-of-entry TVS on twisted-pair signal lines exposed to EMI and relay-induced spikes. Use Value: Sub-14 V clamping and <1 μA leakage preserve signal fidelity and ADC accuracy in 24 V systems. |
| Consumer USB Power Line Protection | Telecom DC Feeder Protection |
Use Scenario: Securing 5 V USB Type-C VBUS lines in portable docking stations against hot-plug and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector to suppress fast transients before reaching PMIC. Use Value: 13.6 V clamping prevents latch-up in USB PD controllers while maintaining low capacitance for signal integrity. | Use Scenario: Protecting -48 V DC feeder lines in telecom base station power supplies from lightning-induced surges. IC Role / Device Role / Timing Role: Series-connected TVS pair (anode-to-cathode) used for bidirectional clamping on telecom DC inputs. Use Value: Though SMBG8.0A-E3/5B is unidirectional, its VBR and VC specs support design of discrete bidirectional arrays meeting GR-1089 requirements. |
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-E3/5B | Same VWM/VBR/VC, but 600 W rating tested per 10/1000 μs waveform with different thermal derating curve | Identical protection level; SMBJ has slightly higher RθJA (110 °C/W vs. 100 °C/W) | Select SMBG8.0A-E3/5B when tighter thermal management or AEC-Q101 qualification is required |
| 1.5SMC8.0A | Same electrical specs but in larger SMC (DO-214AB) package; 1.5 kW PPPM rating | Higher surge margin but requires 30% more board area and incompatible footprint | Choose 1.5SMC8.0A only if legacy SMC layout exists and >600 W headroom is needed |
Compared with SMBJ8.0A-E3/5B and 1.5SMC8.0A, SMBG8.0A-E3/5B offers optimal balance of AEC-Q101 compliance, compact SMBG footprint, and verified 600 W surge capability-making it preferred for space-constrained automotive and industrial designs where thermal performance and qualification status are critical.
Availability
SMBG8.0A-E3/5B is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and consumer USB power line protection requiring stable component supply and full traceability.
Supply support for SMBG8.0A-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, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific optimization.
The SMBG series was developed for high-volume, high-reliability surface-mount transient suppression in automotive and industrial environments-prioritizing AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of SMBG8.0A-E3/5B at its rated peak pulse current?
The SMBG8.0A-E3/5B has a maximum clamping voltage (VC) of 13.6 V at 44.1 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuits during surge events. The SMBG8.0A-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG8.0A-E3/5B suitable for automotive applications?
Yes, SMBG8.0A-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its -55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and validated performance under temperature cycling and HTRB testing confirm suitability for engine control units, body electronics, and ADAS power domains. The SMBG8.0A-E3/5B meets automotive transient immunity requirements such as ISO 7637-2 Pulse 1 and Pulse 2a.
How does the SMBG8.0A-E3/5B differ from the SMBJ8.0A-E3/5B?
The SMBG8.0A-E3/5B and SMBJ8.0A-E3/5B share identical VWM, VBR, and VC specifications but differ in package thermal performance and qualification: SMBG has RθJA = 100 °C/W versus SMBJ's 110 °C/W, and SMBG8.0A-E3/5B carries AEC-Q101 qualification while SMBJ8.0A-E3/5B does not. Both use DO-215AA and DO-214AA footprints respectively, making them non-drop-in replacements. The SMBG8.0A-E3/5B is preferred where automotive qualification and tighter thermal control are mandatory.
What is the reverse leakage current specification for SMBG8.0A-E3/5B at its stand-off voltage?
The SMBG8.0A-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 8.0 V and ambient temperature of 25 °C. This ultra-low leakage ensures minimal power loss and signal distortion in high-impedance protection configurations, such as on sensor bias lines or low-power MCU reset inputs. Leakage remains within specification up to +125 °C, supporting stable operation in demanding thermal environments.
Does SMBG8.0A-E3/5B require special PCB layout considerations?
Yes-optimal performance of SMBG8.0A-E3/5B requires adherence to Vishay's recommended mounting pad layout: 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and thermal dissipation. Use of smaller pads reduces surge capability and increases junction temperature. Additionally, minimize trace inductance between the SMBG8.0A-E3/5B and protected node, and place it as close as possible to the connector or IC input to ensure effective transient suppression.
SMBG8.0A-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:
- 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-E3/5B FAQ
1.How can I place an order for SMBG8.0A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG8.0A-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 SMBG8.0A-E3/5B reliable?
The price and inventory of SMBG8.0A-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 SMBG8.0A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG8.0A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG8.0A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG8.0A-E3/5B?
SMBG8.0A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG8.0A-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 SMBG8.0A-E3/5B?
For technical support, including SMBG8.0A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG8.0A-E3/5B requirements.
6.How does Aetrix verify that SMBG8.0A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG8.0A-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 SMBG8.0A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG8.0A-E3/5B?
All SMBG8.0A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG8.0A-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 SMBG8.0A-E3/5B part is unused and in its original packaging.
Return procedure for SMBG8.0A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG8.0A-E3/5B Tags
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