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Vishay General Semiconductor - Diodes Division SMB10J11-E3/52
- Part No.:
- SMB10J11-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J11-E3/52.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,470
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Product details
Overview
SMB10J11-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on DC power rails 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 clamping voltage (VC) at 54.9 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform - used to safeguard automotive ECUs, industrial I/O ports, and sensor interfaces against ESD and load dump transients.
For engineers reviewing the SMB10J11-E3/52 datasheet, SMB10J11-E3/52 pinout, SMB10J11-E3/52 application, or SMB10J11-E3/52 equivalent, key selection criteria include its AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.43), 1.0 µA max reverse leakage at VWM, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1.0 µA leakage at 11 V), then rapidly avalanches below 13.5 V to divert surge current away from downstream ICs. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance, critical for repeatable clamping performance across temperature (-55 °C to +150 °C).
The device meets J-STD-020 MSL Level 1 (260 °C peak reflow), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 1A whisker testing. Its thermal resistance (RθJA = 72 °C/W) reflects optimized PCB pad layout per Vishay's recommended 0.2" × 0.2" copper area per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 11 V - maximum continuous reverse voltage before significant leakage; sets operating margin for 12 V nominal systems |
| VBR (Breakdown Voltage) | 12.2–13.5 V at 1 mA - guaranteed avalanche initiation range; ensures reliable turn-on before system damage threshold |
| VC (Clamping Voltage) | 18.2 V at 54.9 A (10/1000 µs) - peak voltage seen by protected circuit during worst-case surge; defines safe overvoltage ceiling |
| PPPM (Peak Pulse Power) | 1000 W - energy-handling capacity for standardized 10/1000 µs transients; supports automotive ISO 7637-2 Pulse 1 & 2a |
| IPPM (Peak Pulse Current) | 54.9 A - maximum non-repetitive surge current it can safely clamp; determines minimum series impedance needed upstream |
| TJmax | 150 °C - maximum junction temperature; enables operation in under-hood automotive environments with proper PCB thermal design |
| Leakage (ID) | ≤1.0 µA at 11 V - negligible standby power loss; avoids interference in high-impedance sensor bias networks |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); weight 0.106 g; RoHS-compliant matte tin terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line (e.g., 12 V rail); must be routed with low-inductance trace to ground plane |
| Cathode | Reverse-biased terminal / clamping node | Marked with color band; ties to system ground; clamps transients by conducting avalanche current to GND |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns; no bake required pre-SMT |
| Low clamping ratio (VC/VBR) | ≈1.43 - minimizes overvoltage stress on protected ICs while maintaining robust surge margin |
| Uni-directional polarity | Provides asymmetric protection ideal for DC power rails where reverse voltage is not expected |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at ECU power entry point, clamping transients within nanoseconds before they reach LDOs or microcontrollers. Use Value: Limits voltage to ≤18.2 V during 54.9 A surges, preventing latch-up or gate oxide damage in downstream 20 V-rated power management ICs. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) of PLC analog I/O modules from field-wiring induced transients. IC Role / Device Role / Timing Role: Bidirectional protection is not required; SMB10J11-E3/52 provides unidirectional clamping on the positive rail side of current-sink output stages. Use Value: With only 1.0 µA leakage at 11 V, it avoids introducing offset error in precision current-loop calibration while surviving 1000 W surges. |
| Consumer Device USB Port Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Adding secondary overvoltage protection on VBUS line of USB-C receptacles in portable docking stations. IC Role / Device Role / Timing Role: Back-up clamping device downstream of primary polyfuse and ESD array, handling slower but higher-energy events like hot-plug inductive kickback. Use Value: Clamps to 18.2 V before USB PD controller ICs (rated to 20 V abs max) experience overstress, extending system robustness beyond IEC 61000-4-5 Level 3. |
Use Scenario: Protecting tip/ring inputs of DSL line cards from lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: First-stage shunt protector on line interface transformer secondary, working with gas discharge tubes (GDTs) in hybrid protection schemes. Use Value: Fast response (<1 ns) and 1000 W rating allow it to absorb initial surge energy before GDT fires, reducing let-through voltage to <25 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-E3/52 | Same DO-214AA package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); insufficient for ISO 7637-2 Pulse 5a | Select when cost sensitivity outweighs surge margin requirements and full AEC-Q101 validation is not mandatory |
| 1.5SMC11A | DO-214AB (SMC) package, same electrical specs, 1500 W PPPM, higher thermal mass | Requires larger PCB footprint (7.11 mm × 6.22 mm vs. 4.57 mm × 3.94 mm); better for high-temperature ambient designs | Choose when board space allows and higher power derating margin or extended thermal endurance is needed |
Compared with SMBJ11A-E3/52 and 1.5SMC11A, SMB10J11-E3/52 uniquely delivers 1000 W surge capability in the compact DO-214AA footprint with full AEC-Q101 qualification - making it optimal for space-constrained automotive and industrial modules requiring certified reliability.
Availability
SMB10J11-E3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom line card development requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for SMB10J11-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and automotive-grade qualification.
The SMB10Jxx series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes demand proven surge resilience.
FAQ
What is the clamping voltage of SMB10J11-E3/52 at its rated peak pulse current?
The SMB10J11-E3/52 has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current of 54.9 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J11-E3/52 maintains this clamping performance across its specified operating temperature range of -55 °C to +150 °C.
Is SMB10J11-E3/52 suitable for automotive applications?
Yes, SMB10J11-E3/52 is AEC-Q101 qualified and explicitly designed for automotive use cases including engine control units, body control modules, and ADAS sensor interfaces. Its construction - glass-passivated junction, MSL Level 1 reflow compatibility, and 150 °C maximum junction temperature - meets stringent automotive reliability requirements. The SMB10J11-E3/52 data sheet confirms qualification per AEC-Q101 test conditions, making it appropriate for under-hood and cabin applications subject to thermal cycling and vibration.
How does the SMB10J11-E3/52 differ from bi-directional variants like SMB8J11CA?
The SMB10J11-E3/52 is unidirectional and intended for DC power rail protection where reverse voltage is not expected, whereas SMB8J11CA is bidirectional and suited for AC-coupled or floating signal lines. Key differences include SMB10J11-E3/52's 1000 W peak pulse power rating (vs. 800 W for SMB8J11CA), 1.0 µA max leakage at 11 V (vs. 5.0 µA for SMB8J11CA), and cathode band marking. The SMB10J11-E3/52 also supports higher forward surge current (100 A) due to its unidirectional architecture.
What is the thermal resistance of SMB10J11-E3/52, and how does it affect PCB layout?
The SMB10J11-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes optimal PCB copper area and direct thermal paths to internal planes. To maintain safe junction temperatures during repeated surges, designers must adhere to Vishay's recommended pad layout - undersized pads increase RθJA, risking thermal runaway. The SMB10J11-E3/52's RθJL of 20 °C/W further emphasizes the need for low-impedance solder connections to thermal vias or ground planes.
Can SMB10J11-E3/52 be used in place of SMBJ11A-E3/52?
SMB10J11-E3/52 is not a drop-in replacement for SMBJ11A-E3/52 due to its higher 1000 W peak pulse power rating versus SMBJ11A-E3/52's 600 W rating - though both share identical VWM, VBR, and VC. Using SMB10J11-E3/52 in an SMBJ11A-E3/52 design improves surge margin but requires verification of PCB thermal relief and layout compatibility. The SMB10J11-E3/52's AEC-Q101 qualification also adds value in automotive contexts where SMBJ11A-E3/52 may lack formal certification.
SMB10J11-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 20.1V
- Current - Peak Pulse (10/1000µs):
- 49.8A
- Power - Peak Pulse:
- 1000W (1kW)
- 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 (SMB)
SMB10J11-E3/52 FAQ
1.How can I place an order for SMB10J11-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J11-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 SMB10J11-E3/52 reliable?
The price and inventory of SMB10J11-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 SMB10J11-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J11-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J11-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J11-E3/52?
SMB10J11-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J11-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 SMB10J11-E3/52?
For technical support, including SMB10J11-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J11-E3/52 requirements.
6.How does Aetrix verify that SMB10J11-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J11-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 SMB10J11-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J11-E3/52?
All SMB10J11-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J11-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 SMB10J11-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J11-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J11-E3/52 Tags
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