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Vishay General Semiconductor - Diodes Division SMB10J14AHE3_B/H
- Part No.:
- SMB10J14AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14AHE3_B/H.pdf
- Description:
- 1KW,14V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,120
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Product details
Overview
SMB10J14AHE3_B/H 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 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR), 23.2 V clamping voltage (VC) at 43.1 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - used in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMB10J14AHE3_B/H datasheet, SMB10J14AHE3_B/H pinout, SMB10J14AHE3_B/H application, or SMB10J14AHE3_B/H equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, low clamping ratio (VC/VBR ≈ 1.48), and compatibility with automated SMT placement on 0.2" × 0.2" 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 (±5%) and low leakage (<1.0 µA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The device is optimized for fast response (<1 ns) to ESD and lightning-induced surges per IEC 61000-4-2/4-5, with thermal resistance RθJA = 72 °C/W enabling reliable operation up to TJ = 150 °C when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 15.6 V / 17.2 V at IT = 1.0 mA - defines guaranteed avalanche onset range for design margining |
| VC @ IPPM | 23.2 V at 43.1 A - clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 1000 W - peak transient energy absorption capability under standardized waveform |
| IFSM | 100 A - non-repetitive forward surge rating for accidental polarity reversal events |
| TJ max | +150 °C - maximum junction temperature supporting under-hood automotive use |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode indicated by color band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with matte tin-plated leads compliant to J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to protected line's low-side or ground reference; conducts during reverse transients |
| Cathode | Avalanche conduction node | Marked end; connects to protected line's high-side or supply rail to clamp overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control, ADAS sensors, and infotainment power rails |
| Low clamping ratio (VC/VBR) | ≈1.48 - minimizes voltage overshoot during clamping, reducing stress on 15–20 V-rated ICs |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking, lowering manufacturing cost and cycle time |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| 1000 W peak pulse power | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver power pins from load-dump and inductive switching transients in vehicle door modules. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between 12 V supply rail and ground, triggered within <1 ns of overvoltage event. Use Value: Limits clamped voltage to 23.2 V, ensuring safe operation of 24 V-tolerant MCU I/Os and preventing latch-up or gate oxide damage in connected drivers. | Use Scenario: Safeguarding 24 V digital input circuits in programmable logic controllers exposed to field wiring surges and relay coil kickback. IC Role / Device Role / Timing Role: Standoff protector on input front-end, conducting only during >14 V transients while remaining high-impedance during normal 0–24 V signal transitions. Use Value: Maintains <1.0 µA leakage at 14 V, avoiding false triggering in high-impedance sensing circuits while absorbing 1000 W surges without degradation. |
| Automotive Camera Power Supply | Consumer Appliance Motor Driver |
Use Scenario: Shielding image sensor and serializer IC power inputs in rear-view cameras subjected to battery voltage spikes during cold-cranking. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 5 V or 12 V camera rail, coordinated with upstream fuse and downstream LDO. Use Value: Clamps to 23.2 V within nanoseconds, preserving integrity of 28 V max-rated buck converters and preventing pixel corruption or reset events. | Use Scenario: Protecting gate drivers and bootstrap circuits in washing machine motor inverters from commutation-induced voltage spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across half-bridge high-side and low-side supply rails to suppress shoot-through-inducing transients. Use Value: Withstands 100 A IFSM, surviving repeated motor startup surges without parametric shift or catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A-E3/52 | Same VWM (14 V), VBR (15.6–17.2 V), VC (23.2 V), but rated for 600 W PPPM and not AEC-Q101 qualified | Commercial-grade only; unsuitable for automotive production without additional qualification | Select when cost-sensitive industrial designs require basic surge protection without automotive certification |
| 1.5SMC14A | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 30 °C/W vs. 72 °C/W; higher thermal mass | Better thermal handling in high-ambient environments but requires 30% more PCB area | Choose for high-power industrial systems where board space permits and lower thermal resistance is critical |
Compared with SMBJ14A-E3/52 and 1.5SMC14A, SMB10J14AHE3_B/H delivers automotive-grade reliability in a compact SMB footprint with superior power density (1000 W in DO-214AA), making it optimal for space-constrained ECU designs requiring zero requalification effort.
Availability
SMB10J14AHE3_B/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for SMB10J14AHE3_B/H 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, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMB10JxxA series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for AEC-Q101-compliant automotive and harsh-environment industrial surge protection where compact size and repeatable clamping are critical.
FAQ
What is the clamping voltage of SMB10J14AHE3_B/H at its rated peak pulse current?
The SMB10J14AHE3_B/H has a maximum clamping voltage (VC) of 23.2 V at its specified peak pulse current (IPPM) of 43.1 A, measured using the 10/1000 µs standard waveform. This value is guaranteed across temperature and ensures protected circuits remain below critical voltage thresholds during surge events. The SMB10J14AHE3_B/H datasheet confirms this parameter under "Electrical Characteristics" for unidirectional devices.
Is SMB10J14AHE3_B/H suitable for automotive applications?
Yes, SMB10J14AHE3_B/H is AEC-Q101 qualified and explicitly designated for automotive use via its HE3 suffix, indicating RoHS compliance and qualification to stress tests including temperature cycling, high-temperature reverse bias, and accelerated life testing. It is deployed in body control modules, camera power supplies, and sensor interfaces where reliability under vibration, thermal cycling, and voltage transients is mandatory. The SMB10J14AHE3_B/H meets these requirements without derating.
What is the standoff voltage (VWM) and why does it matter for SMB10J14AHE3_B/H?
The standoff voltage (VWM) of SMB10J14AHE3_B/H is 14 V - the maximum DC or continuous reverse voltage the device can block without entering avalanche conduction. This parameter ensures the SMB10J14AHE3_B/H remains non-conductive during normal operation of 12 V automotive or 24 V industrial systems, minimizing leakage and avoiding interference with signal integrity or power efficiency. Exceeding VWM risks premature conduction and thermal runaway.
How does the SMB10J14AHE3_B/H package compare to DO-214AB in thermal performance?
The SMB10J14AHE3_B/H uses the smaller SMB (DO-214AA) package with typical RθJA = 72 °C/W, whereas DO-214AB (e.g., in 1.5SMC14A) offers ~30 °C/W. While the SMB10J14AHE3_B/H achieves higher power density (1000 W in smaller footprint), its higher thermal resistance requires adherence to Vishay's recommended 0.2" × 0.2" copper pads for effective heat dissipation. In thermally constrained layouts, this trade-off favors compactness over passive cooling headroom.
Does SMB10J14AHE3_B/H have polarity marking, and how is it identified?
Yes, SMB10J14AHE3_B/H is unidirectional and features a visible cathode band on the SMB package body - a dark-colored stripe near one end. Per Vishay's mechanical drawings and datasheet notes, this band identifies the cathode terminal, which must be connected toward the supply rail or signal source to enable proper clamping action. The anode is the opposite end, and no marking appears on bidirectional variants - confirming SMB10J14AHE3_B/H's unidirectional identity.
SMB10J14AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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/H FAQ
1.How can I place an order for SMB10J14AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14AHE3_B/H 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/H reliable?
The price and inventory of SMB10J14AHE3_B/H 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/H is usually 5 days.
3.What payment methods are accepted for SMB10J14AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14AHE3_B/H?
SMB10J14AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14AHE3_B/H 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/H?
For technical support, including SMB10J14AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14AHE3_B/H requirements.
6.How does Aetrix verify that SMB10J14AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMB10J14AHE3_B/H 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/H meets industry standards.
7.What is the process for return or replacement of SMB10J14AHE3_B/H?
All SMB10J14AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14AHE3_B/H, 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/H part is unused and in its original packaging.
Return procedure for SMB10J14AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14AHE3_B/H Tags
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