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Vishay General Semiconductor - Diodes Division SMBG11CA-E3/52
- Part No.:
- SMBG11CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG11CA-E3/52.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,407
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Product details
Overview
SMBG11CA-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 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), clamping voltage of 18.2 V at 33 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG11CA-E3/52 datasheet, SMBG11CA-E3/52 pinout, SMBG11CA-E3/52 application, or SMBG11CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low leakage (<5 μA at VWM), MSL Level 1 reflow compatibility, junction temperature range (−55 °C to +150 °C), and compliance with UL 497B for protector classification.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while the DO-215AA package supports automated SMT placement and meets UL 94 V-0 flammability rating.
The device delivers 600 W peak pulse power under standardized 10/1000 μs waveform with 0.01% duty cycle, and exhibits fast response time (<1 ns) to ESD and lightning-induced surges. Thermal resistance is rated at 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation in high-density PCB layouts with minimum 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for protected line. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 18.2 V at 33 A - Clamped voltage under full 600 W surge; determines maximum stress imposed on downstream ICs. |
| ID @ VWM | <5 μA - Low reverse leakage preserves signal integrity and minimizes standby power loss in battery-powered systems. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 3/4 surge immunity. |
| TJ Range | −55 °C to +150 °C - Extended junction temperature range enables deployment in under-hood automotive and industrial environments. |
| Qualification | AEC-Q101 qualified - Validated reliability for automotive electronics applications including sensor interfaces and body control modules. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts reverse surge current during negative transients; symmetrical with cathode for bidirectional operation. |
| Cathode | Transient current entry (positive polarity) | Accepts forward surge current during positive transients; functionally identical to anode due to bidirectional design. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive subsystems. |
| AEC-Q101 qualification | Validates long-term reliability under thermal cycling, mechanical shock, and humidity exposure per automotive standards. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow assembly without preconditioning; eliminates moisture-related popcorning risk. |
| UL 497B recognition (QVGQ2) | Confirms compliance as a listed protector for telecom and data line applications per safety standard. |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensors and engine crankshaft position sensors from load dump and inductive switching transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential sensor output lines to clamp ±200 V transients before they reach analog front-end amplifiers. Use Value: Prevents sensor signal corruption and microcontroller reset events caused by >100 V spikes, leveraging SMBG11CA-E3/52's 18.2 V clamping voltage and AEC-Q101 qualification. | Use Scenario: Safeguarding CAN transceiver inputs (CANH/CANL) against ESD and surge events in factory automation PLCs and motor drives. IC Role / Device Role / Timing Role: Paired devices placed line-to-line and line-to-ground to suppress common-mode and differential-mode transients up to 600 W. Use Value: Maintains CAN bus communication integrity during 4 kV ESD (IEC 61000-4-2) and 1 kV surge (IEC 61000-4-5), enabled by SMBG11CA-E3/52's sub-1 ns response and low clamping ratio. |
| Consumer USB Port Protection | Telecom DSL Line Interface |
Use Scenario: Shielding USB 2.0 D+/D− lines in portable media players and docking stations from human-body-model ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS connected between differential data lines and ground to absorb ±8 kV contact discharge energy. Use Value: Ensures USB enumeration success and prevents PHY damage by limiting transient voltage to ≤18.2 V, well below the 3.6 V absolute maximum rating of most USB transceivers. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges entering via outdoor copper pairs. IC Role / Device Role / Timing Role: Primary protection device mounted at line interface connector, shunting surge current away from transformer-coupled analog front-end. Use Value: Achieves UL 497B recognition and withstands repeated 10/1000 μs surges up to 600 W, extending service life of telecom equipment deployed in lightning-prone regions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA-E3/52 | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating) and higher IPPM = 33.3 A; identical SMB (DO-214AA) footprint but 0.2 mm taller. | SMBJ series uses DO-214AA (slightly larger pad layout); not drop-in compatible with SMBG's DO-215AA land pattern. | Select SMBG11CA-E3/52 when board space is constrained and DO-215AA footprint is fixed; choose SMBJ11CA-E3/52 only if redesigning for legacy SMB pad compatibility. |
| 1.5KE11CA | Higher PPPM = 1500 W, axial-leaded DO-201AD package, VC = 18.2 V same, but slower thermal response and no AEC-Q101 qualification. | Through-hole mounting only; unsuitable for high-speed automated assembly or automotive under-hood vibration environments. | Use 1.5KE11CA only in cost-sensitive, non-automotive, low-volume prototyping where manual assembly is acceptable and surge levels exceed 600 W. |
Compared with SMBJ11CA-E3/52 and 1.5KE11CA, SMBG11CA-E3/52 uniquely combines AEC-Q101 qualification, DO-215AA low-profile packaging, and verified 600 W surge capability-making it the optimal choice for space-constrained, high-reliability automotive and industrial SMT designs requiring zero-layout change from existing SMBG footprints.
Availability
SMBG11CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer USB ports, and telecom DSL line protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBG11CA-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 was developed specifically for high-density, AEC-Q101-compliant transient protection in automotive and industrial surface-mount systems where low profile, repeatable clamping, and reflow robustness are critical.
FAQ
What is the clamping voltage of SMBG11CA-E3/52 and how is it measured?
The SMBG11CA-E3/52 has a maximum clamping voltage (VC) of 18.2 V, measured at peak pulse current (IPPM) of 33 A using a standardized 10/1000 μs double-exponential surge waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88456, Rev. 09-Jan-2024) and reflects the actual voltage seen by protected circuitry during worst-case transient events. The SMBG11CA-E3/52 maintains this clamping performance across its full operating temperature range.
Is SMBG11CA-E3/52 suitable for automotive applications?
Yes, SMBG11CA-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its −55 °C to +150 °C junction temperature range, MSL Level 1 reflow compatibility, and UL 497B recognition support deployment in engine control units, ADAS sensors, and body electronics. The SMBG11CA-E3/52 meets stringent automotive reliability requirements without derating.
Does SMBG11CA-E3/52 have polarity markings, and how is it oriented on the PCB?
No, SMBG11CA-E3/52 is a bidirectional TVS and carries no polarity marking on the package. Unlike unidirectional variants, it functions identically regardless of orientation-both terminals are electrically symmetric. The SMBG11CA-E3/52 may be placed in either direction across protected lines, simplifying layout and eliminating risk of reverse installation during automated assembly.
What is the maximum leakage current of SMBG11CA-E3/52 at its stand-off voltage?
The SMBG11CA-E3/52 exhibits a maximum reverse leakage current (ID) of 5 μA at its 11 V stand-off voltage (VWM), tested at 25 °C per Vishay's datasheet. This ultra-low leakage preserves signal fidelity in high-impedance sensor circuits and minimizes quiescent power draw in always-on automotive modules. The SMBG11CA-E3/52 maintains leakage <10 μA up to 85 °C ambient.
Can SMBG11CA-E3/52 replace SMBJ11CA in an existing design?
No-SMBG11CA-E3/52 uses the DO-215AA (SMBG) package, while SMBJ11CA uses DO-214AA (SMB). Though both are surface-mount and share identical electrical specs, their land patterns differ: SMBG is 4.57 mm × 3.94 mm vs. SMB's 4.57 mm × 3.94 mm length but 2.16 mm height vs. SMBG's 2.10 mm. The SMBG11CA-E3/52 requires dedicated DO-215AA footprint; direct replacement would cause solder joint reliability issues.
SMBG11CA-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):
- 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)
SMBG11CA-E3/52 FAQ
1.How can I place an order for SMBG11CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG11CA-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 SMBG11CA-E3/52 reliable?
The price and inventory of SMBG11CA-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 SMBG11CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG11CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG11CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG11CA-E3/52?
SMBG11CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG11CA-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 SMBG11CA-E3/52?
For technical support, including SMBG11CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG11CA-E3/52 requirements.
6.How does Aetrix verify that SMBG11CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG11CA-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 SMBG11CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG11CA-E3/52?
All SMBG11CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG11CA-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 SMBG11CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBG11CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG11CA-E3/52 Tags
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