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Vishay General Semiconductor - Diodes Division SMA5J14C-E3/61
- Part No.:
- SMA5J14C-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J14C-E3/61.pdf
- Description:
- TVS DIODE 14VWM 25.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,277
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Product details
Overview
SMA5J14C-E3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on signal and power lines. It features a 14 V stand-off voltage (VWM), 23.2 V maximum clamping voltage (VC) at 21.6 A peak pulse current (IPPM), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive electronics.
For engineers reviewing the SMA5J14C-E3/61 datasheet, SMA5J14C-E3/61 pinout, SMA5J14C-E3/61 application, or SMA5J14C-E3/61 equivalent, key selection criteria include bi-directional clamping capability, low incremental surge resistance, MSL Level 1 moisture sensitivity, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically in both reverse and forward directions, with breakdown voltage (VBR) specified between 15.6 V and 17.2 V at 1 mA test current. Its clamping performance is characterized under standardized 10/1000 µs surge waveform per ANSI/IEEE C62.35, delivering 23.2 V max VC at IPPM = 21.6 A.
Thermal design relies on RθJA = 80 °C/W (typ.) and RθJL = 25 °C/W (typ.), enabling operation across -55 °C to +150 °C junction temperature range. The device uses glass-passivated silicon junction and meets J-STD-020 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse stand-off voltage before clamping begins |
| VBR (min/max) | 15.6 V / 17.2 V - Breakdown voltage range at 1 mA, defining turn-on threshold tolerance |
| VC @ IPPM | 23.2 V - Clamped voltage during 500 W surge, limiting protected circuit stress |
| IPPM | 21.6 A - Peak pulse current supported under 10/1000 µs waveform |
| PPPM | 500 W - Surge power handling capacity, critical for automotive load-dump immunity |
| TJ max | +150 °C - Maximum junction temperature, supporting under-hood automotive deployment |
| MSL Level | Level 1 - No floor life limitation; safe for standard SMT reflow without dry-packaging |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), cathode band absent per bi-directional designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | No fixed polarity; conducts clamp current equally in either direction during overvoltage events |
| Case (body) | Thermal and mechanical interface | DO-214AC molded body provides UL 94 V-0 flammability rating and solderable matte tin leads |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns |
| AEC-Q101 qualification | Validated reliability for automotive powertrain, body control, and ADAS modules requiring extended temperature cycling |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving protection margin for 3.3 V/5 V ICs |
| MSL Level 1 compliance | Eliminates bake-out requirements and simplifies SMT line integration for high-volume manufacturing |
| Glass passivated junction | Enhances long-term stability and humidity resistance in harsh industrial and automotive environments |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O against load dump and ISO 7637-2 pulses in vehicle door modules. IC Role / Device Role / Timing Role: Bi-directional TVS clamping element placed directly at connector entry point. Use Value: Limits transient voltage to ≤23.2 V during 500 W surges, preventing latch-up or gate oxide damage in 5 V logic interfaces. | Use Scenario: Shielding 4–20 mA current loop inputs in PLC analog input cards from ESD and field wiring transients. IC Role / Device Role / Timing Role: Primary surge suppression device across differential sensor signal pair. Use Value: Maintains signal integrity by clamping sub-100 ns ESD events to <25 V while adding <1 pF capacitance at VWM. |
| Consumer USB Port Protection | Telecom DSL Line Interface |
Use Scenario: Safeguarding USB 2.0 D+/D− lines in set-top boxes against contact ESD per IEC 61000-4-2 ±15 kV. IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode choke, before USB PHY. Use Value: Responds in <1 ns to divert >21 A surge current, preserving data eye diagram integrity during compliance testing. | Use Scenario: Front-end protection of ADSL/VDSL line drivers against lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: High-power bi-directional clamp on line-side transformer secondary winding. Use Value: Withstands repeated 500 W surges without degradation, meeting GR-1089-CORE Level 3 telecom surge immunity 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 |
|---|---|---|---|
| SMA5J14CA-E3/61 | Identical electrical specs and packaging; CA suffix explicitly denotes bi-directional version per Vishay naming convention | No functional difference; SMA5J14C-E3/61 and SMA5J14CA-E3/61 refer to same device per Vishay documentation | Select SMA5J14CA-E3/61 if ordering system requires explicit CA suffix for bi-directional identification |
| SMC5J14CA | Same VWM/VC specs but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 35 °C/W vs. 80 °C/W) | Better suited for high-repetition surge environments or PCBs with limited copper area; not drop-in compatible due to footprint mismatch | Choose SMC5J14CA only when thermal derating or higher IFSM (100 A vs. 40 A) is required and board layout allows larger footprint |
Compared with SMA5J14C-E3/61, SMA5J14CA-E3/61 is functionally identical and interchangeable, while SMC5J14CA offers superior thermal performance at the cost of board space and non-pin-compatible packaging-making SMA5J14C-E3/61 optimal for space-constrained automotive and consumer SMT designs.
Availability
SMA5J14C-E3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and consumer USB interface protection requiring stable component supply and AEC-Q101-qualified surge immunity.
Supply support for SMA5J14C-E3/61 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 and automotive-grade qualification.
The SMA5J series is engineered specifically for high-power-density transient suppression in space-constrained automotive and industrial applications, balancing 500 W surge capability with DO-214AC footprint efficiency.
FAQ
What does the "C" suffix in SMA5J14C-E3/61 indicate?
The "C" suffix in SMA5J14C-E3/61 explicitly identifies the device as bi-directional, consistent with Vishay's naming convention where "CA" also denotes bi-directional variants. This distinguishes it from uni-directional versions (e.g., SMA5J14A), ensuring correct selection for AC-coupled or differential signal protection. SMA5J14C-E3/61 has no polarity marking and clamps symmetrically in both directions.
Is SMA5J14C-E3/61 suitable for automotive applications?
Yes, SMA5J14C-E3/61 is AEC-Q101 qualified and rated for -55 °C to +150 °C operating junction temperature, making it suitable for under-hood and cabin automotive applications including body control modules, infotainment interfaces, and sensor front-ends. Its 500 W surge rating meets ISO 7637-2 Pulse 5a load-dump immunity requirements when properly mounted.
What is the clamping voltage of SMA5J14C-E3/61 under surge conditions?
The maximum clamping voltage (VC) of SMA5J14C-E3/61 is 23.2 V at 21.6 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value ensures protected downstream components-such as 5 V microcontrollers or CAN transceivers-are held below destructive voltage thresholds during transient events.
Does SMA5J14C-E3/61 require special PCB layout considerations?
Yes. For optimal performance, SMA5J14C-E3/61 must be mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal to achieve rated 500 W surge capability and thermal dissipation. Short, low-inductance traces to protected nodes and ground planes are essential to minimize voltage overshoot during fast transients.
How does SMA5J14C-E3/61 differ from SMA5J14A-E3/61?
SMA5J14C-E3/61 is bi-directional with symmetrical clamping in both polarities and no polarity marking, whereas SMA5J14A-E3/61 is uni-directional with a cathode band and only clamps in reverse bias. Their VWM, VBR, and VC values differ slightly due to internal construction-SMA5J14C-E3/61 has VWM = 14 V and VC = 23.2 V, while SMA5J14A-E3/61 has VWM = 14 V but VC = 24.4 V at lower IPPM.
SMA5J14C-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 25.8V
- Current - Peak Pulse (10/1000µs):
- 19.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J14C-E3/61 FAQ
1.How can I place an order for SMA5J14C-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J14C-E3/61 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 SMA5J14C-E3/61 reliable?
The price and inventory of SMA5J14C-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J14C-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J14C-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J14C-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J14C-E3/61?
SMA5J14C-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J14C-E3/61 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 SMA5J14C-E3/61?
For technical support, including SMA5J14C-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J14C-E3/61 requirements.
6.How does Aetrix verify that SMA5J14C-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J14C-E3/61 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 SMA5J14C-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J14C-E3/61?
All SMA5J14C-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J14C-E3/61, 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 SMA5J14C-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J14C-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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