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Vishay General Semiconductor - Diodes Division SMBG11A-E3/5B
- Part No.:
- SMBG11A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG11A-E3/5B.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,071
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Product details
Overview
SMBG11A-E3/5B 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 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 18.2 V maximum clamping voltage (VC) at 33 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive ECUs, industrial I/O modules, and DC power rails.
For engineers reviewing the SMBG11A-E3/5B datasheet, SMBG11A-E3/5B pinout, SMBG11A-E3/5B application, or SMBG11A-E3/5B equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) package compatibility, AEC-Q101 qualification, 150 °C junction temperature rating, and clamping performance under repetitive surge conditions per IEC 61000-4-5.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<5 µA at VWM) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports automated SMT placement, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA = 100 °C/W) assumes 0.2" × 0.2" copper pads - critical for sustained surge handling in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - precise avalanche initiation threshold for predictable protection onset |
| VC @ IPPM | 18.2 V at 33 A - clamping voltage during 10/1000 µs surge, limiting stress on protected ICs |
| PPPM | 600 W - peak transient power dissipation capability under standardized surge waveform |
| IFSM | 100 A - surge current tolerance for 8.3 ms half-sine, supporting motor drive and relay coil suppression |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMBG (DO-215AA) - low-profile SMT package with 3.94 mm × 2.10 mm footprint and gull-wing leads |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount gull-wing configuration with cathode band marking. Dimensions: 6.48 mm × 3.94 mm × 2.10 mm (L × W × H); terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference | Provides low-impedance path to ground during transient clamping in unidirectional configuration |
| Cathode | Current exit point in forward bias; marked with band; connected to protected line | Accepts transient voltage above VWM and initiates avalanche conduction to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term stability of VBR and leakage current across temperature and humidity stress |
| MSL Level 1 (260 °C) | Enables single-reflow assembly without moisture-related popcorning or delamination risk |
| 600 W 10/1000 µs rating | Meets IEC 61000-4-5 Level 4 (4 kV) surge immunity requirements for industrial and automotive ports |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage overshoot during fast transients, protecting sensitive 3.3 V and 5 V logic interfaces |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-supplied microcontrollers and CAN transceivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground. Use Value: Clamps 18.2 V at 33 A, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V ICs during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding analog front-ends and RS-485 transceivers in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMBG11A-E3/5B used unidirectionally on VCC-to-ground paths. Use Value: Limits induced surge voltage to ≤18.2 V during EFT bursts (IEC 61000-4-4), preserving ADC accuracy and communication integrity. |
| DC Motor Drive Circuit Protection | Consumer Power Adapter Input Stage |
Use Scenario: Suppressing inductive kickback from brushed DC motors in automotive seat/mirror actuators. IC Role / Device Role / Timing Role: Connected anode-to-ground, cathode-to-H-bridge high-side switch node. Use Value: Handles 100 A 8.3 ms surge (IFSM), absorbing energy from motor coil collapse without degradation. | Use Scenario: Secondary-side overvoltage clamp in 5 V/9 V USB-C PD adapters after rectification. IC Role / Device Role / Timing Role: Unidirectional TVS placed across output capacitor to prevent overvoltage during regulation fault. Use Value: Maintains 11 V stand-off while clamping to 18.2 V, ensuring compliance with UL 62368-1 secondary circuit limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-E3/5B | Same VWM (11 V), but lower PPPM (600 W vs. SMBJ's 600 W), identical DO-214AA package (not DO-215AA); slightly higher VC (19.9 V) | DO-214AA has larger pad area and higher RθJA; less suitable for ultra-dense automotive PCBs | Select SMBG11A-E3/5B when board space is constrained and AEC-Q101 compliance is mandatory. |
| 1.5SMC11A | Same electrical specs, but in larger DO-214AB (SMC) package; higher thermal mass but 2× footprint area | Preferred for high-reliability industrial power supplies where manual rework or thermal cycling endurance is prioritized | Choose 1.5SMC11A only if layout allows ≥7.11 mm × 6.22 mm and higher surge repetition rate is required. |
Compared with SMBJ11A-E3/5B and 1.5SMC11A, SMBG11A-E3/5B delivers identical clamping performance in a smaller DO-215AA footprint with certified AEC-Q101 qualification - making it optimal for space-constrained, automotive-grade designs requiring zero-layout compromise on surge robustness.
Availability
SMBG11A-E3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial I/O protection, and consumer power adapter development requiring stable component supply and full traceability.
Supply support for SMBG11A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMBG series was engineered specifically for high-density, AEC-Q101-compliant transient suppression in next-generation automotive and industrial control systems - balancing miniaturization, surge robustness, and process consistency.
FAQ
What is the polarity configuration of SMBG11A-E3/5B?
SMBG11A-E3/5B is a unidirectional Transient Voltage Suppressor. Its cathode is marked by a band on the package body and must be connected to the line being protected, while the anode connects to ground. This configuration enables clamping only during reverse-voltage transients - essential for DC power rail protection where forward conduction must be avoided.
Does SMBG11A-E3/5B meet automotive qualification standards?
Yes, SMBG11A-E3/5B is AEC-Q101 qualified, as confirmed in Vishay's official documentation (Doc. #88456, Rev. 09-Jan-2024). This certification covers stress testing for temperature cycling, humidity bias, mechanical shock, and surge robustness - validating its use in engine control units, body control modules, and ADAS sensor interfaces.
What is the maximum clamping voltage of SMBG11A-E3/5B under surge conditions?
The maximum clamping voltage (VC) of SMBG11A-E3/5B is 18.2 V at 33 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transient events - critical for ensuring compatibility with 3.3 V and 5 V logic families.
Can SMBG11A-E3/5B be used in bidirectional applications?
No, SMBG11A-E3/5B is strictly unidirectional. For bidirectional protection, Vishay specifies the CA-suffix variant (e.g., SMBG11CA). Using SMBG11A-E3/5B in AC or symmetrical signal-line applications would result in forward conduction during negative half-cycles, potentially damaging the device or downstream circuitry.
What is the lead finish and soldering compatibility of SMBG11A-E3/5B?
SMBG11A-E3/5B features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. It meets JESD 201 Class 2 whisker resistance and is rated for MSL Level 1 with a maximum reflow peak temperature of 260 °C - fully compatible with standard lead-free reflow profiles used in automotive and industrial SMT lines.
SMBG11A-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 33A
- 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)
SMBG11A-E3/5B FAQ
1.How can I place an order for SMBG11A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG11A-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 SMBG11A-E3/5B reliable?
The price and inventory of SMBG11A-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 SMBG11A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG11A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG11A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG11A-E3/5B?
SMBG11A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG11A-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 SMBG11A-E3/5B?
For technical support, including SMBG11A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG11A-E3/5B requirements.
6.How does Aetrix verify that SMBG11A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG11A-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 SMBG11A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG11A-E3/5B?
All SMBG11A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG11A-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 SMBG11A-E3/5B part is unused and in its original packaging.
Return procedure for SMBG11A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG11A-E3/5B Tags
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