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Vishay General Semiconductor - Diodes Division SMB10J14AHE3_B/I
- Part No.:
- SMB10J14AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14AHE3_B/I.pdf
- Description:
- 1KW,14V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,197
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Product details
Overview
SMB10J14AHE3_B/I 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 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR) at 1 mA, 1000 W peak pulse power (10/1000 µs), 43.1 A peak pulse current (IPPM), and clamps transients to ≤23.2 V - used in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J14AHE3_B/I datasheet, SMB10J14AHE3_B/I pinout, SMB10J14AHE3_B/I application, or SMB10J14AHE3_B/I 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 divert surge energy away from sensitive downstream circuitry. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
Designed for automotive-grade applications, SMB10J14AHE3_B/I meets AEC-Q101 stress testing requirements and supports operation across –55 °C to +150 °C junction temperature range. Its MSL Level 1 rating and 260 °C lead-free reflow compatibility enable robust manufacturing integration without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC rail voltage margin |
| VBR min/max | 15.6 V / 17.2 V at 1 mA - tight breakdown window ensures predictable turn-on during transients |
| VC @ IPPM | ≤23.2 V at 43.1 A - clamping voltage limits stress on protected ICs during 1000 W surge events |
| PPPM | 1000 W (10/1000 µs) - handles high-energy lightning-induced or inductive-switching surges |
| RθJA | 72 °C/W - thermal resistance enables effective heat dissipation on standard PCB copper pads |
| TJ max | +150 °C - supports under-hood automotive environments and industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements (HTOL, TC, HTRB, etc.) |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC input or signal line side | Connected to protected node; conducts surge current toward cathode during overvoltage |
| Cathode | Ground or return path | Marked with color band; provides low-impedance path to ground during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, high-temp operating life, and humidity testing |
| Glass passivated junction | Ensures stable electrical parameters and long-term reliability under thermal and humidity stress |
| Low profile SMB package | Enables compact board layout and compatibility with automated pick-and-place equipment |
| MSL Level 1, 260 °C peak | Eliminates pre-bake requirement and supports standard lead-free reflow profiles |
| 1000 W peak pulse power | Provides robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Clamping TVS placed between power rail and ground, responding within <1 ns to suppress spikes up to 100 V. Use Value: Limits voltage seen by downstream DC-DC converters and microcontrollers to ≤23.2 V during 1000 W surges, preventing latch-up or damage. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional shunt protector on 0–5 V or 4–20 mA signal paths, grounded at system common. Use Value: Maintains signal integrity by clamping fast transients (<1 ns response) while adding only 1 μA leakage at 14 V. |
| Consumer Device USB Port Protection | Telecom Base Station DC Power Rail |
Use Scenario: Safeguarding USB VBUS lines in automotive infotainment head units against hot-swap and ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5 V supply line upstream of USB controller ICs. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) and clamps to ≤23.2 V, preserving USB PHY functionality. | Use Scenario: Protecting 48 V DC distribution rails in outdoor telecom cabinets from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on main power entry, coordinated with MOVs and gas discharge tubes. Use Value: Delivers 1000 W surge handling with low clamping ratio (VC/VWM = 1.66), reducing stress on secondary protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A-E3/52 | Same VWM (14 V), same SMB package, but rated for 600 W PPPM (vs. 1000 W) | Lower surge capacity limits use to less severe environments (e.g., non-automotive consumer) | Select SMB10J14AHE3_B/I when full 1000 W surge immunity per IEC 61000-4-5 is required |
| SMCJ14AHE3_A/H | Same VWM and AEC-Q101 qualification, but larger SMC (DO-214AB) package with 1500 W rating | Requires larger PCB footprint; better suited for higher-energy systems like ADAS domain controllers | Choose SMB10J14AHE3_B/I where space-constrained SMB layout is mandatory and 1000 W suffices |
Compared with SMBJ14A-E3/52 and SMCJ14AHE3_A/H, SMB10J14AHE3_B/I uniquely balances AEC-Q101 compliance, 1000 W surge capability, and SMB footprint - making it optimal for space-limited automotive modules needing certified high-power transient suppression.
Availability
SMB10J14AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power distribution systems requiring stable component supply with full traceability and lifecycle support.
Supply support for SMB10J14AHE3_B/I 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 and automotive qualification.
The SMB10JxxA series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for AEC-Q101-compliant surge protection in harsh automotive and industrial environments.
FAQ
What is the clamping voltage of SMB10J14AHE3_B/I at its rated peak pulse current?
The SMB10J14AHE3_B/I has a maximum clamping voltage (VC) of 23.2 V when subjected to its peak pulse current (IPPM) of 43.1 A under the standard 10/1000 µs waveform. This value is measured at the device's rated 1000 W peak pulse power level and ensures downstream components see limited overvoltage stress during surge events.
Is SMB10J14AHE3_B/I suitable for automotive applications?
Yes, SMB10J14AHE3_B/I is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and humidity bias, making it appropriate for engine control units, body electronics, and ADAS subsystems.
What does the "_B/I" suffix mean in SMB10J14AHE3_B/I?
The "_B/I" suffix in SMB10J14AHE3_B/I indicates packaging configuration: "B" denotes the revision level (Revision B), and "I" specifies 13-inch diameter plastic tape and reel delivery containing 3200 units - per Vishay's ordering nomenclature in Document 88422.
How does SMB10J14AHE3_B/I differ from bidirectional variants like SMB8J14CA?
SMB10J14AHE3_B/I is unidirectional with cathode marking and optimized for DC rail protection, whereas SMB8J14CA is bidirectional (no polarity marking) and intended for AC or dual-polarity signal lines. SMB10J14AHE3_B/I delivers 1000 W PPPM vs. 800 W for SMB8J14CA, reflecting its higher single-direction surge capability.
What is the thermal resistance of SMB10J14AHE3_B/I, and how does it affect PCB layout?
SMB10J14AHE3_B/I 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. To maintain safe junction temperatures during repeated surges, designers must adhere to this pad layout - undersized copper reduces power handling and risks thermal runaway.
SMB10J14AHE3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 43.1A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J14AHE3_B/I FAQ
1.How can I place an order for SMB10J14AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14AHE3_B/I 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 SMB10J14AHE3_B/I reliable?
The price and inventory of SMB10J14AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J14AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMB10J14AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14AHE3_B/I?
SMB10J14AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14AHE3_B/I 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 SMB10J14AHE3_B/I?
For technical support, including SMB10J14AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14AHE3_B/I requirements.
6.How does Aetrix verify that SMB10J14AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMB10J14AHE3_B/I 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 SMB10J14AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMB10J14AHE3_B/I?
All SMB10J14AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14AHE3_B/I, 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 SMB10J14AHE3_B/I part is unused and in its original packaging.
Return procedure for SMB10J14AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14AHE3_B/I Tags
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