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Vishay General Semiconductor - Diodes Division SMB10J11HE3/52
- Part No.:
- SMB10J11HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J11HE3/52.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,323
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Product details
Overview
SMB10J11HE3/52 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 (IPPM), and 1000 W peak pulse power rating with 10/1000 µs waveform. It is AEC-Q101 qualified and used in automotive power supply input stages.
For engineers reviewing the SMB10J11HE3/52 datasheet, SMB10J11HE3/52 pinout, SMB10J11HE3/52 application, or SMB10J11HE3/52 equivalent, key selection criteria include clamping performance under 1000 W surges, AEC-Q101 qualification for automotive environments, unidirectional polarity with cathode band marking, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device during transients, leveraging an avalanche junction to clamp reverse surges above VBR while maintaining low leakage (<5 µA at 11 V). Its glass-passivated chip junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The device is rated for 150 °C maximum junction temperature and exhibits 72 °C/W junction-to-ambient thermal resistance when mounted per recommended pad layout. Its fast response time (<1 ns) and low incremental surge resistance enable effective suppression of ESD, load dump, and inductive switching spikes in 12 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 11 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 12.2–13.5 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 18.2 V at 54.9 A IPPM - Peak voltage seen by protected circuit during full 1000 W surge; critical for downstream IC survival. |
| PPPM (Peak Pulse Power) | 1000 W (10/1000 µs) - Energy-handling capacity for standardized surge waveforms; validates robustness against ISO 7637-2 Pulse 1/2a/5a. |
| IR (Reverse Leakage) | ≤5 µA at 11 V - Minimal standby power loss and signal integrity impact in always-on circuits. |
| TJ max. | 150 °C - Enables operation in under-hood automotive environments without derating below ambient 125 °C. |
| Package | DO-214AA (SMB) - Industry-standard surface-mount outline with 2.13–2.44 mm lead width; compatible with IPC-7351B footprint. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode indicated by a color band on one end. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential rail; forms return path during clamping conduction. |
| Cathode (banded end) | High-side surge input terminal | Connected to protected line (e.g., battery feed); avalanche conduction occurs from cathode to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance per JESD47. |
| Glass passivated junction | Eliminates surface contamination sensitivity and ensures stable VBR over lifetime and humidity exposure. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture-related popcorning or delamination. |
| Low incremental surge resistance | Enables tighter VC–VBR spread (ΔV = 6.0 V), reducing protected circuit overvoltage margin requirements. |
| RoHS-compliant & whisker-tested (JESD201 Class 2) | Meets automotive electronics material compliance and long-term solder joint integrity requirements. |
Applications
| Automotive Body Control Module (BCM) Power Input | Industrial PLC Digital I/O Protection |
|---|---|
|
Use Scenario: Protects 12 V supply input of BCM against load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor; clamps transients within nanoseconds. Use Value: Limits voltage to ≤18.2 V during 1000 W surges, preventing damage to upstream DC/DC controllers and microcontroller power supplies. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on each optocoupler input leg; absorbs inductive kickback from solenoid/relay coils. Use Value: Maintains <5 µA leakage at 24 V nominal, ensuring clean logic-level detection while surviving repeated 1 kV/µs edge transients. |
| Automotive Infotainment USB Power Line | Telecom Base Station DC Feeder Protection |
|
Use Scenario: Guards +5 V USB VBUS line in head unit against hot-swap and ESD events per IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Unidirectional TVS placed immediately after USB connector; shunts ESD current away from USB transceiver IC. Use Value: Clamps 8 kV contact discharge to <18.2 V within <1 ns, preserving signal integrity and avoiding transceiver latch-up. |
Use Scenario: Protects -48 V DC feeder lines in 4G/5G base station cabinets from lightning-induced surges and AC cross-talk. IC Role / Device Role / Timing Role: High-power TVS installed at cabinet entry point; first-stage clamping before DC/DC isolation stage. Use Value: Handles 1000 W pulses without degradation, enabling system-level surge immunity up to 10 kA (8/20 µs) via coordinated protection design. |
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 DO-214AA package and 11 V VWM, but not AEC-Q101 qualified; 1000 W PPPM, 18.2 V VC. | Rated for commercial/industrial use only; lacks automotive qualification testing and whisker-class validation. | Select when AEC-Q101 is not required and cost optimization is prioritized for non-automotive designs. |
| 1.5SMC11A | Same electrical specs (11 V VWM, 18.2 V VC), but in larger DO-214AB (SMC) package; higher thermal mass but 2.5× PCB area. | Used where board space allows and higher single-pulse energy margin (1500 W) is needed beyond 1000 W. | Choose for industrial power supplies requiring extended surge endurance or legacy SMC footprint compatibility. |
Compared with SMBJ11A-E3/52, SMB10J11HE3/52 adds AEC-Q101 qualification and JESD201 Class 2 whisker resistance-critical for automotive production. Versus 1.5SMC11A, it delivers identical clamping performance in 40% less PCB area, enabling compact automotive module layouts.
Availability
SMB10J11HE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance, RoHS compliance, and high-reliability surge protection.
Supply support for SMB10J11HE3/52 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for AEC-Q101-compliant automotive power rail and signal line protection with validated surge endurance and thermal stability.
FAQ
What is the clamping voltage of SMB10J11HE3/52 at its rated peak pulse current?
The SMB10J11HE3/52 has a maximum clamping voltage (VC) of 18.2 V at 54.9 A peak pulse current (IPPM), measured under the standard 10/1000 µs waveform. This value is confirmed in Vishay's datasheet Document Number 88422, page 2, and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The SMB10J11HE3/52 maintains this clamping performance across its operational temperature range.
Is SMB10J11HE3/52 suitable for automotive applications?
Yes, SMB10J11HE3/52 is AEC-Q101 qualified per Vishay's documentation, making it suitable for automotive applications including body control modules, infotainment systems, and powertrain sensors. Its HE3 suffix denotes AEC-Q101 qualification and JESD201 Class 2 whisker resistance-key requirements for under-hood and dashboard-mounted electronics. The SMB10J11HE3/52 meets ISO 7637-2 surge immunity needs when applied per recommended layout.
What does the "HE3/52" suffix mean in SMB10J11HE3/52?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance. The "/52" denotes packaging in 7" diameter plastic tape and reel, with a base quantity of 750 units per reel. This packaging format supports automated SMT placement and is specified in Vishay's ordering information table on page 3 of document 88422. The SMB10J11HE3/52 is shipped ready for high-volume manufacturing.
How does SMB10J11HE3/52 differ from SMBJ11A-E3/52?
SMB10J11HE3/52 and SMBJ11A-E3/52 share identical electrical parameters (11 V VWM, 18.2 V VC, 1000 W PPPM) and DO-214AA package, but SMB10J11HE3/52 carries AEC-Q101 qualification and JESD201 Class 2 whisker testing-requirements absent in SMBJ11A-E3/52. The SMB10J11HE3/52 is intended for automotive production, whereas SMBJ11A-E3/52 targets commercial/industrial use. Both are unidirectional with cathode band marking.
What is the thermal resistance of SMB10J11HE3/52, and how does it affect layout?
The SMB10J11HE3/52 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 thermal characteristics table. This value assumes minimum recommended pad layout; reducing pad size increases RθJA and limits sustained power handling. For reliable 1000 W surge operation, the SMB10J11HE3/52 must be placed per the mounting pad dimensions shown on page 5 of document 88422.
SMB10J11HE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J11HE3/52 FAQ
1.How can I place an order for SMB10J11HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J11HE3/52 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 SMB10J11HE3/52 reliable?
The price and inventory of SMB10J11HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J11HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J11HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J11HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J11HE3/52?
SMB10J11HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J11HE3/52 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 SMB10J11HE3/52?
For technical support, including SMB10J11HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J11HE3/52 requirements.
6.How does Aetrix verify that SMB10J11HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J11HE3/52 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 SMB10J11HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J11HE3/52?
All SMB10J11HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J11HE3/52, 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 SMB10J11HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J11HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J11HE3/52 Tags
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