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Vishay General Semiconductor - Diodes Division SMA5J14AHE3/61
- Part No.:
- SMA5J14AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J14AHE3/61.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,609
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Product details
Overview
SMA5J14AHE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) 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), 23.2 V clamping voltage at 21.6 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J14AHE3/61 datasheet, SMA5J14AHE3/61 pinout, SMA5J14AHE3/61 application, or SMA5J14AHE3/61 equivalent, key selection criteria include clamping performance under 21.6 A surge, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °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 clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for fast response (<1 ns) and low incremental surge resistance. Its design targets transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump).
The SMA5J14AHE3/61 is rated for -55 °C to +150 °C operating junction temperature, meets MSL level 1 (260 °C reflow peak), and is qualified to AEC-Q101 - confirming suitability for under-hood automotive electronics where reliability under thermal cycling and mechanical stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 15.6 V / 17.2 V at 1 mA - ensures reliable breakdown onset within tight tolerance band |
| VC @ IPPM | 23.2 V at 21.6 A - defines worst-case clamped voltage protecting downstream components |
| PPPM | 500 W (10/1000 µs) - supports high-energy transients without failure |
| RθJA | 80 °C/W - determines thermal derating needed on standard PCB pad layout |
| TJ max | +150 °C - enables operation in high-ambient environments like engine control units |
| AEC-Q101 | Qualified - validates reliability for automotive-grade production use |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band; no marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); conducts during overvoltage to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over time and temperature, minimizing parameter drift in harsh environments |
| MSL Level 1 rating | Supports single-reflow assembly without moisture-related popcorning or delamination |
| Low incremental surge resistance | Reduces voltage overshoot during fast transients, improving clamping precision |
| AEC-Q101 qualification | Validates robustness across temperature cycling, humidity, and mechanical shock for automotive deployment |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in engine control modules against load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤23.2 V during 21.6 A surges, preventing damage to upstream regulators and microcontrollers. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on 4–20 mA or 0–10 V signal paths. Use Value: Clamps sub-100 ns ESD events to safe levels while maintaining <1 μA leakage at 14 V, preserving signal integrity. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs from lightning-induced surges on mains-connected devices. IC Role / Device Role / Timing Role: Secondary-side TVS on bulk capacitor node, absorbing residual transients after MOV filtering. Use Value: Handles 500 W peak pulses without degradation, enabling compact adapter designs meeting UL 62368-1 surge requirements. | Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from induced surges on 48 V DC feeder lines in outdoor deployments. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMA5J14AHE3/61 used in unidirectional grounding configuration on return path. Use Value: Provides repeatable clamping at 23.2 V with <1 μA leakage, ensuring uninterrupted power delivery during field surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J14A-E3/61 | Commercial-grade (non-AEC-Q101), identical electrical specs and package | Lacks automotive qualification; suitable for consumer/industrial only | Select when AEC-Q101 is not required and cost sensitivity is higher |
| SMA5J14CAHE3/61 | Bidirectional version; symmetric VBR (±15.6–17.2 V), same PPPM and VC | Required for AC-coupled or floating signal lines where polarity reversal occurs | Choose only if bidirectional clamping is mandated by circuit topology |
Compared with SMA5J14A-E3/61, the SMA5J14AHE3/61 adds AEC-Q101 validation for automotive use; compared with SMA5J14CAHE3/61, it provides unidirectional behavior essential for grounded-rail protection with tighter leakage control.
Availability
SMA5J14AHE3/61 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface protection, and telecom DC feeder line protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SMA5J14AHE3/61 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, power density, and automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained SMT applications, targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-x threats is mandatory.
FAQ
What is the clamping voltage of the SMA5J14AHE3/61 under maximum surge conditions?
The SMA5J14AHE3/61 has a maximum clamping voltage (VC) of 23.2 V at its rated peak pulse current (IPPM) of 21.6 A, measured using a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuits during transient events. The SMA5J14AHE3/61 maintains this clamping performance due to its low incremental surge resistance and stable junction characteristics.
Is the SMA5J14AHE3/61 suitable for automotive applications?
Yes, the SMA5J14AHE3/61 is AEC-Q101 qualified, confirming its reliability for automotive use including under-hood environments. It operates from -55 °C to +150 °C, withstands thermal cycling and mechanical shock per AEC-Q101 test requirements, and is rated for load dump and jump-start transients. The SMA5J14AHE3/61 is specifically intended for automotive power rail and sensor protection where qualification is mandatory.
What does the "HE3" suffix indicate in SMA5J14AHE3/61?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from commercial-grade "E3" variants. "H" indicates AEC-Q101 qualification, "E3" confirms RoHS compliance and matte tin plating. The "/61" denotes packaging in 7-inch tape-and-reel format with 1800 units per reel. The SMA5J14AHE3/61 thus combines automotive reliability, regulatory compliance, and SMT-ready packaging.
How does the SMA5J14AHE3/61 compare to SMAJ14A in terms of power handling?
The SMA5J14AHE3/61 delivers 500 W peak pulse power (PPPM) with a 10/1000 µs waveform, whereas the SMAJ14A is rated at 400 W under identical conditions. This 25 % higher power rating allows the SMA5J14AHE3/61 to absorb larger transients without degradation, supporting more demanding surge immunity requirements in modern automotive and industrial systems. Both share the SMA package, but the SMA5J14AHE3/61 offers superior energy handling.
What is the maximum reverse leakage current of the SMA5J14AHE3/61 at its stand-off voltage?
The SMA5J14AHE3/61 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 14 V stand-off voltage (VWM), measured at 25 °C. This ultra-low leakage preserves system efficiency in always-on circuits and prevents false triggering in high-impedance sensor interfaces. The SMA5J14AHE3/61 maintains this specification across its full operating temperature range, supporting stable performance in battery-powered and precision analog applications.
SMA5J14AHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- 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):
- 21.6A
- Power - Peak Pulse:
- 500W
- 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-214AC (SMA)
SMA5J14AHE3/61 FAQ
1.How can I place an order for SMA5J14AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J14AHE3/61 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 SMA5J14AHE3/61 reliable?
The price and inventory of SMA5J14AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J14AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J14AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J14AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J14AHE3/61?
SMA5J14AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J14AHE3/61 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 SMA5J14AHE3/61?
For technical support, including SMA5J14AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J14AHE3/61 requirements.
6.How does Aetrix verify that SMA5J14AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J14AHE3/61 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 SMA5J14AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J14AHE3/61?
All SMA5J14AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J14AHE3/61, 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 SMA5J14AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J14AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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