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Vishay General Semiconductor - Diodes Division SMB10J11AHE3/52
- Part No.:
- SMB10J11AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J11AHE3/52.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,547
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Product details
Overview
SMB10J11AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) 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 - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMB10J11AHE3/52 datasheet, SMB10J11AHE3/52 pinout, SMB10J11AHE3/52 application, or SMB10J11AHE3/52 equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity with cathode band marking, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping-type overvoltage protector, leveraging an avalanche breakdown mechanism to limit transient voltages before they damage downstream ICs or MOSFETs. Its glass-passivated junction ensures stable VBR tolerance (±10%) and low leakage (<5 µA at VWM), while its MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The device is rated for -55 °C to +150 °C operating junction temperature and exhibits 72 °C/W junction-to-ambient thermal resistance when mounted per recommended pad layout. Its 100 A non-repetitive forward surge capability (8.3 ms half-sine) enables robust protection against load dump and inductive switching events in 12 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse working voltage before significant leakage; defines safe DC rail operation point |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - guaranteed avalanche onset range; ensures predictable clamping threshold |
| VC @ IPPM | 18.2 V at 54.9 A - clamped voltage during 10/1000 µs surge; limits stress on protected 12 V logic or analog circuits |
| PPPM | 1000 W - peak pulse power handling capacity; supports EN 61000-4-5 Level 4 (4 kV) surge immunity |
| IFSM | 100 A - single half-sine surge current rating (8.3 ms); withstands automotive load-dump transients |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connects to protected line; conducts surge current to ground during overvoltage event |
| Anode | Reference/ground return | Typically tied to system ground plane; completes clamping path for unidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor modules |
| Glass passivated junction | Ensures stable VBR over lifetime and improved humidity resistance vs. epoxy-passivated alternatives |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with standard SMT pick-and-place equipment |
| MSL Level 1 rating | Supports lead-free reflow soldering without pre-baking; peak temperature up to 260 °C |
| 1000 W peak pulse power | Provides higher surge margin than SMA-class TVS devices, reducing need for parallel devices |
Applications
| Automotive Sensor Interface | Industrial PLC Digital Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from ISO 7637-2 pulses and ESD. IC Role / Device Role / Timing Role: Clamping transient energy before it reaches sensitive input pins of automotive-grade microcontrollers or signal conditioners. Use Value: Maintains signal integrity under 100 V/100 ns fast transients while adding <10 pF capacitance - no data rate degradation on 1 Mbps CAN bus. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers against field-wiring surges and relay contact bounce. IC Role / Device Role / Timing Role: Acting as primary front-end surge limiter on optocoupler input side, absorbing >1 kV ring wave transients per IEC 61000-4-5. Use Value: Enables direct connection to industrial field wiring without external series impedance, reducing BOM count and board space. |
| DC Power Rail Protection | USB Port ESD Suppression |
|
Use Scenario: Guarding 12 V supply lines feeding infotainment head units and body control modules against load dump events. IC Role / Device Role / Timing Role: Voltage-clamping element placed between battery rail and DC-DC converter input, triggered within <1 ns. Use Value: Limits rail voltage to ≤18.2 V during 100 A/40 ms load dump, preventing overvoltage shutdown of downstream regulators. |
Use Scenario: Secondary-level ESD protection on USB 2.0 VBUS and D+/D- lines in automotive docking stations and telematics gateways. IC Role / Device Role / Timing Role: Fast-response shunt device that diverts >8 kV HBM ESD strikes away from USB PHY transceivers. Use Value: Complies with IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) while maintaining <0.5 Ω dynamic resistance during clamping. |
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-E3/52 | Same VWM/VC, but lower PPPM (600 W) and no AEC-Q101 qualification | Restricted to commercial-grade consumer/industrial use; not approved for automotive ECUs | Select when cost sensitivity outweighs automotive qualification requirements |
| 1.5SMC11AHE3/A | Higher PPPM (1500 W), same VWM/VC, but larger SMC (DO-214AB) package | Requires larger PCB footprint and different thermal pad design; better for high-energy industrial surges | Choose when system-level surge testing exceeds 1000 W or requires extended thermal mass |
Compared with SMBJ11A-E3/52 and 1.5SMC11AHE3/A, SMB10J11AHE3/52 uniquely balances AEC-Q101 compliance, 1000 W surge rating, and SMB footprint - making it optimal for space-constrained automotive modules where qualification and performance must coexist.
Availability
SMB10J11AHE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J11AHE3/52 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMB10JxxA series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for automotive-grade transient suppression where AEC-Q101 validation, tight VBR tolerance, and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SMB10J11AHE3/52 at its rated peak pulse current?
The SMB10J11AHE3/52 has a maximum clamping voltage (VC) of 18.2 V at 54.9 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 standards and ensures protected circuits remain below critical overvoltage thresholds during surge events. The SMB10J11AHE3/52 maintains this clamping performance across its qualified temperature range (-55 °C to +150 °C).
Is SMB10J11AHE3/52 suitable for automotive applications?
Yes, SMB10J11AHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use with suffix "HE3" indicating RoHS-compliant and AEC-Q101 qualified construction. It meets requirements for engine control, body electronics, and ADAS sensor protection, including thermal cycling, high-temperature reverse bias, and ESD robustness. The SMB10J11AHE3/52 is referenced in Vishay's automotive-grade ordering codes and tested per JESD22 standards.
What is the standoff voltage and breakdown voltage range for SMB10J11AHE3/52?
The SMB10J11AHE3/52 has a nominal standoff voltage (VWM) of 11 V and a breakdown voltage (VBR) range of 12.2 V to 13.5 V at 1 mA test current. This 10% VBR tolerance ensures reliable turn-on behavior across manufacturing lots and temperature extremes. The SMB10J11AHE3/52 is specified with these values in Vishay Document Number 88422, Revision 09-Jan-2024.
Does SMB10J11AHE3/52 have polarity markings, and how is it oriented on the PCB?
Yes, SMB10J11AHE3/52 is unidirectional and features a visible cathode band at one end of the SMB (DO-214AA) package. During PCB layout, the banded end must connect to the line being protected (e.g., 12 V rail), while the anode connects to ground. This orientation ensures proper clamping action during positive transients. The SMB10J11AHE3/52 follows JEDEC DO-214AA mechanical dimensions with defined cathode polarity per Vishay's package outline drawing.
What is the thermal resistance and mounting requirement for SMB10J11AHE3/52?
The SMB10J11AHE3/52 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, as specified in Vishay's datasheet. Adequate copper area is essential to sustain repetitive surge duty cycles and prevent thermal runaway. The SMB10J11AHE3/52 also has RθJL = 20 °C/W (junction-to-lead), supporting efficient heat transfer through solder joints.
SMB10J11AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 54.9A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J11AHE3/52 FAQ
1.How can I place an order for SMB10J11AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J11AHE3/52 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 SMB10J11AHE3/52 reliable?
The price and inventory of SMB10J11AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J11AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J11AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J11AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J11AHE3/52?
SMB10J11AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J11AHE3/52 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 SMB10J11AHE3/52?
For technical support, including SMB10J11AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J11AHE3/52 requirements.
6.How does Aetrix verify that SMB10J11AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J11AHE3/52 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 SMB10J11AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J11AHE3/52?
All SMB10J11AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J11AHE3/52, 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 SMB10J11AHE3/52 part is unused and in its original packaging.
Return procedure for SMB10J11AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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