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Vishay General Semiconductor - Diodes Division SMB10J14AHE3/5B
- Part No.:
- SMB10J14AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14AHE3/5B.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,123
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Product details
Overview
SMB10J14AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on power and signal lines. It features a 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR at 1 mA), 23.2 V clamping voltage (VC) at 43.1 A peak pulse current (IPPM), and 1000 W peak pulse power (10/1000 µs waveform), targeting automotive and industrial electronics subject to inductive switching transients.
For engineers reviewing the SMB10J14AHE3/5B datasheet, SMB10J14AHE3/5B pinout, SMB10J14AHE3/5B application, or SMB10J14AHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), polarity marking convention, and real-world use context for ESD/surge protection design validation.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below VWM = 14 V and rapidly transitions to low-impedance conduction above VBR (min 15.6 V), limiting transient voltages to ≤23.2 V at 43.1 A. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns).
Designed per ANSI/IEEE C62.35 standards, it handles non-repetitive 10/1000 µs surges up to 1000 W with low incremental surge resistance and meets MSL level 1 (260 °C reflow). AEC-Q101 qualification confirms suitability for automotive under-hood and infotainment systems requiring robust transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - Voltage range where device enters avalanche breakdown, defining turn-on threshold |
| VC @ IPPM | 23.2 V at 43.1 A - Clamped voltage during 10/1000 µs surge, directly limiting stress on downstream ICs |
| PPPM | 1000 W - Peak pulse power handling capability, enabling protection against high-energy transients like ISO 7637-2 Pulse 1/2a/5a |
| IFSM | 100 A - Surge current rating for 8.3 ms half-sine wave, supporting load-dump immunity in 12 V automotive systems |
| TJ max | +150 °C - Maximum junction temperature, allowing operation in under-hood environments with minimal derating |
| RθJA | 72 °C/W - Thermal resistance from junction to ambient on standard 5.0 mm × 5.0 mm copper pads, guiding PCB thermal layout |
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. Polarity indicated by cathode band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected line side; conducts during positive transients when cathode is biased higher |
| Cathode | Forward current exit / clamping reference | Marked with color band; tied to ground or lower-potential rail to clamp voltage spikes to safe levels |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensors requiring long-term reliability under thermal cycling and vibration |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across temperature, critical for low-power sensor interfaces |
| MSL Level 1 (260 °C) | Enables compatibility with standard lead-free reflow processes without pre-baking, reducing manufacturing complexity |
| Low RθJA = 72 °C/W | Supports sustained surge duty cycles without thermal runaway when mounted on recommended 5.0 mm × 5.0 mm copper pads |
| 1000 W peak pulse power | Provides margin against worst-case ISO 16750-2 load dump events in 12 V systems, exceeding typical 400–600 W requirements |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in body control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery input and DC-DC converter input. Use Value: Limits transient voltage to ≤23.2 V, preventing overvoltage damage to buck controller ICs rated for 36 V max input. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional-capable but used unidirectionally to shunt ESD and inductive kickback on 4–20 mA loop outputs. Use Value: Sub-1 ns response ensures clamping occurs before sensitive op-amps or ADC inputs exceed absolute maximum ratings. |
| Consumer Power Adapter Input Stage | Telecom Equipment Surge Protection |
Use Scenario: Secondary-side surge suppression on 19 V laptop adapter outputs exposed to hot-plug transients. IC Role / Device Role / Timing Role: Standoff-rated TVS installed after secondary rectifier, before USB-PD controller. Use Value: 14 V VWM avoids false triggering during normal 19 ±10% regulation, while 1000 W rating absorbs multiple 10/1000 µs surges. | Use Scenario: Front-end protection of Ethernet PHY power pins in PoE-powered switches subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on +48 V bias rail feeding isolated DC-DC converters. Use Value: AEC-Q101 qualification correlates with extended lifetime under repeated surge stress, meeting Telcordia GR-1089-CORE requirements. |
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/VC/PPPM, but commercial-grade (non-AEC-Q101), RoHS-compliant only | Lacks automotive qualification; suitable for consumer/industrial designs without automotive lifecycle or reliability mandates | Select SMBJ14A-E3/52 when AEC-Q101 is not required and cost optimization is prioritized |
| SMCJ14AHE3_A/H | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, same VWM/VC specs | Used where higher surge energy absorption is needed (e.g., 24 V industrial systems), requiring PCB layout change due to larger footprint | Choose SMCJ14AHE3_A/H if system-level testing reveals 1000 W insufficient for worst-case ISO 7637-2 Pulse 5a events |
Compared with SMBJ14A-E3/52, SMB10J14AHE3/5B adds AEC-Q101 qualification and tighter thermal performance (RθJA = 72 vs. ~85 °C/W), while SMCJ14AHE3_A/H trades compact SMB size for 50 % higher surge capacity-requiring board redesign but enabling single-event survivability in harsher environments.
Availability
SMB10J14AHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J14AHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density, surface-mount surge protection in space-constrained automotive and industrial systems demanding AEC-Q101 compliance and repeatable clamping behavior.
FAQ
What is the clamping voltage of SMB10J14AHE3/5B at its rated peak pulse current?
The SMB10J14AHE3/5B has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current (IPPM) of 43.1 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J14AHE3/5B maintains this clamping performance across its specified operating temperature range.
Is SMB10J14AHE3/5B suitable for automotive applications?
Yes, SMB10J14AHE3/5B is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix, confirming compliance with stress tests for temperature cycling, humidity, mechanical shock, and surge immunity. It is deployed in engine control units, infotainment systems, and ADAS sensors where reliable transient suppression is mandated. The SMB10J14AHE3/5B meets MSL level 1 and supports lead-free reflow, aligning with automotive manufacturing standards.
What does the "5B" in SMB10J14AHE3/5B indicate?
The "5B" in SMB10J14AHE3/5B denotes the packaging configuration: 13-inch diameter plastic tape and reel, containing 3200 units per reel. This differs from "52", which indicates a 7-inch reel with 750 units. The "HE3" suffix confirms RoHS-compliance and AEC-Q101 qualification, while "SMB10J14A" identifies the base device with 14 V stand-off voltage. The SMB10J14AHE3/5B thus specifies full traceable, automotive-grade packaging for high-volume SMT assembly.
How does SMB10J14AHE3/5B differ from bidirectional variants like SMB10J14CAHE3/5B?
SMB10J14AHE3/5B is unidirectional, featuring a cathode band for polarity-sensitive placement and optimized for DC line protection where reverse conduction is undesirable. In contrast, SMB10J14CAHE3/5B is bidirectional, lacking polarity marking and capable of clamping both positive and negative transients-used in AC-coupled or floating signal lines. Their VWM, VBR, and VC values differ: SMB10J14AHE3/5B has VWM = 14 V, while SMB10J14CAHE3/5B has VWM = 14 V symmetrically, but lower PPPM (800 W vs. 1000 W).
What is the thermal resistance of SMB10J14AHE3/5B and how does it affect PCB layout?
The SMB10J14AHE3/5B 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. This value assumes minimum recommended pad layout per Vishay specification; reducing pad area increases RθJA, risking thermal saturation during repeated surges. To maintain reliability, designers must allocate adequate copper area and avoid excessive trace length or isolation around the SMB10J14AHE3/5B footprint.
SMB10J14AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J14AHE3/5B FAQ
1.How can I place an order for SMB10J14AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14AHE3/5B 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 SMB10J14AHE3/5B reliable?
The price and inventory of SMB10J14AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J14AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J14AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14AHE3/5B?
SMB10J14AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14AHE3/5B 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 SMB10J14AHE3/5B?
For technical support, including SMB10J14AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14AHE3/5B requirements.
6.How does Aetrix verify that SMB10J14AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J14AHE3/5B 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 SMB10J14AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J14AHE3/5B?
All SMB10J14AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14AHE3/5B, 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 SMB10J14AHE3/5B part is unused and in its original packaging.
Return procedure for SMB10J14AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14AHE3/5B Tags
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