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Vishay General Semiconductor - Diodes Division SMB10J11HE3/5B
- Part No.:
- SMB10J11HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J11HE3/5B.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,392
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Product details
Overview
SMB10J11HE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on power and signal lines. It features a 11 V standoff 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 (PPPM) with 10/1000 µs waveform. It is AEC-Q101 qualified and used to protect automotive ECUs, industrial sensor interfaces, and DC power rails against ESD and load dump transients.
For engineers reviewing the SMB10J11HE3/5B datasheet, SMB10J11HE3/5B pinout, SMB10J11HE3/5B application, or SMB10J11HE3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs surges, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, responding within <1 ps to transient overvoltages. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5 µA at VWM), while its low incremental surge resistance enables effective energy diversion during fast-rising transients such as ISO 7637-2 Pulse 1/2a/5a or IEC 61000-4-5 surges.
The device is rated for continuous operation from –55 °C to +150 °C junction temperature and meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C). Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and the HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum reverse working voltage before clamping begins; defines safe operating range for protected circuit |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - guaranteed avalanche onset window; ensures predictable turn-on across temperature and lot |
| VC @ IPPM | 18.2 V at 54.9 A - clamped voltage during 10/1000 µs surge; determines maximum stress on downstream ICs |
| PPPM | 1000 W - peak pulse power handling capability; supports robust protection against automotive load dump events |
| RθJA | 72 °C/W - thermal resistance junction-to-ambient; requires ≥5.0 mm × 5.0 mm copper pad per terminal for full rating |
| TJ max | 150 °C - maximum junction temperature; enables use in under-hood automotive environments |
| Leakage ID | ≤5 µA at VWM - minimal standby power loss and signal integrity impact on low-power sensor lines |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, unidirectional configuration with cathode band marking on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to protected line's lower-potential side (e.g., GND or return); conducts during forward surge |
| Cathode | Avalanche clamping node | Connected to protected line's higher-potential side (e.g., VCC or signal rail); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| Glass-passivated junction | Ensures long-term stability of VBR and low parametric drift under thermal cycling and humidity |
| MSL Level 1 rating | Enables direct placement into standard SMT reflow without dry-pack or baking requirements |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| Matte tin plating (JESD 201 Class 2) | Prevents tin whisker growth in high-reliability automotive and industrial deployments |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in vehicle body control modules against ISO 7637-2 load dump pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VBAT and GND, absorbing up to 1000 W surges without failure. Use Value: Limits voltage seen by MCU to ≤18.2 V during 100 ms load dump events, preventing latch-up or permanent damage. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: TVS diode mounted at connector entry point, shunting ESD (IEC 61000-4-2 ±8 kV contact) and inductive switching spikes. Use Value: Clamps transients within nanoseconds while adding <1 pF capacitance, preserving signal bandwidth and accuracy. |
| DC-DC Converter Input Protection | Automotive CAN Transceiver Protection |
Use Scenario: Shielding input stage of buck converter powering ADAS camera modules from battery line transients. IC Role / Device Role / Timing Role: Primary surge suppression element upstream of input filter capacitor, rated for repetitive 10/1000 µs surges. Use Value: Withstands ≥1000 surges at 50% PPPM rating, enabling long service life in start-stop systems. | Use Scenario: Protecting high-speed CAN FD transceivers (e.g., TJA1044) against coupled transients on vehicle wiring harnesses. IC Role / Device Role / Timing Role: Unidirectional TVS on CAN_H line referenced to ground, complementing bidirectional protection on differential pair. Use Value: Provides asymmetric clamping aligned with CAN common-mode voltage swing, avoiding false dominant state triggering. |
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 DO-214AA package and 11 V VWM, but not AEC-Q101 qualified; RθJA = 75 °C/W vs. 72 °C/W | Intended for commercial/industrial use only; unsuitable for automotive OEM designs requiring qualification evidence | Select SMB10J11HE3/5B when AEC-Q101 compliance and tighter thermal resistance are mandatory |
| 1.5SMC11A | Higher PPPM (1500 W), larger DO-214AB (SMC) package (7.11 mm × 6.22 mm), same VWM/VBR/VC specs | Requires PCB layout change due to larger footprint and higher mounting pad area (≥10 mm² per terminal) | Choose 1.5SMC11A only when >1000 W surge margin is required and board space allows larger package |
Compared with SMBJ11A-E3/5B, SMB10J11HE3/5B delivers certified automotive reliability and marginally better thermal performance; versus 1.5SMC11A, it offers identical electrical protection in a smaller, more compact SMB footprint-critical for dense automotive PCBs.
Availability
SMB10J11HE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning circuits, and DC-DC converter input stages requiring stable component supply, AEC-Q101 traceability, and high-volume tape-and-reel delivery.
Supply support for SMB10J11HE3/5B 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The SMB10Jxx series belongs to Vishay's TRANSZORB® high-power TVS platform, engineered specifically for demanding automotive and industrial surge environments where AEC-Q101 validation, low clamping voltage, and consistent SMT manufacturability are essential.
FAQ
What is the clamping voltage of SMB10J11HE3/5B at its rated peak pulse current?
The SMB10J11HE3/5B has a maximum clamping voltage (VC) of 18.2 V when subjected to its specified peak pulse current (IPPM) of 54.9 A under a 10/1000 µs waveform. This value is measured at TA = 25 °C with devices mounted on 5.0 mm × 5.0 mm copper pads per terminal, and it defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J11HE3/5B maintains this clamping performance across its qualified operating temperature range.
Is SMB10J11HE3/5B suitable for automotive applications?
Yes, SMB10J11HE3/5B is explicitly AEC-Q101 qualified, making it suitable for automotive applications including engine control units, body electronics, infotainment systems, and ADAS sensor modules. Its construction-including glass-passivated junction, matte tin plating meeting JESD 201 Class 2 whisker requirements, and MSL Level 1 reflow compatibility-meets stringent automotive reliability standards. The SMB10J11HE3/5B data sheet confirms qualification per AEC-Q101 Rev D test conditions.
What does the "HE3" suffix indicate in SMB10J11HE3/5B?
The "HE3" suffix in SMB10J11HE3/5B denotes two critical attributes: "H" signifies AEC-Q101 qualification, and "E3" indicates RoHS-compliant, matte tin-plated leads meeting JESD 201 Class 1A whisker testing. Together, HE3 certifies that the SMB10J11HE3/5B meets automotive-grade reliability requirements for solderability, long-term stability, and resistance to tin whisker formation-distinct from commercial-grade "E3" variants like SMBJ11A-E3/5B.
How does SMB10J11HE3/5B differ from SMBJ11A-E3/5B?
SMB10J11HE3/5B and SMBJ11A-E3/5B share identical electrical parameters (VWM = 11 V, VBR = 12.2–13.5 V, VC = 18.2 V) and DO-214AA package dimensions, but differ in qualification and thermal performance: SMB10J11HE3/5B is AEC-Q101 qualified and has RθJA = 72 °C/W, whereas SMBJ11A-E3/5B is commercial-grade with RθJA = 75 °C/W. The SMB10J11HE3/5B is therefore required for automotive OEM designs, while SMBJ11A-E3/5B serves cost-sensitive industrial applications.
What is the recommended PCB pad layout for SMB10J11HE3/5B to achieve full power rating?
To achieve the full 1000 W peak pulse power rating, SMB10J11HE3/5B must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads connected to internal or external thermal planes. The datasheet specifies this layout for thermal derating curves and IPPM ratings. Smaller pads reduce heat dissipation, lowering surge current capability and increasing junction temperature-potentially causing premature failure during repeated transients. The SMB10J11HE3/5B thermal resistance (RθJA = 72 °C/W) is validated only with this pad size.
SMB10J11HE3/5B 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)
SMB10J11HE3/5B FAQ
1.How can I place an order for SMB10J11HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J11HE3/5B 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 SMB10J11HE3/5B reliable?
The price and inventory of SMB10J11HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J11HE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J11HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J11HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J11HE3/5B?
SMB10J11HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J11HE3/5B 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 SMB10J11HE3/5B?
For technical support, including SMB10J11HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J11HE3/5B requirements.
6.How does Aetrix verify that SMB10J11HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J11HE3/5B 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 SMB10J11HE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J11HE3/5B?
All SMB10J11HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J11HE3/5B, 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 SMB10J11HE3/5B part is unused and in its original packaging.
Return procedure for SMB10J11HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J11HE3/5B Tags
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