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Vishay General Semiconductor - Diodes Division SMA5J14CA-M3/61
- Part No.:
- SMA5J14CA-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J14CA-M3/61.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,112
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Product details
Overview
SMA5J14CA-M3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) 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), and 500 W peak pulse power (10/1000 µs waveform), commonly deployed to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMA5J14CA-M3/61 datasheet, SMA5J14CA-M3/61 pinout, SMA5J14CA-M3/61 application, or SMA5J14CA-M3/61 equivalent, key selection criteria include bidirectional clamping capability, low incremental surge resistance, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance, and AEC-Q101 qualification readiness via HM3 suffix variants.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, with breakdown voltage (VBR) specified between 15.6 V (min) and 17.2 V (max) at 1 mA test current. Its clamping performance is validated under standardized 10/1000 µs surge waveforms, delivering consistent VC ≤ 23.2 V up to IPPM = 21.6 A.
Thermal design relies on RθJA = 80 °C/W (typical, junction-to-ambient) and RθJL = 25 °C/W (junction-to-lead), supporting operation across -55 °C to +150 °C junction temperature range. The device uses glass-passivated chip junction and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 15.6 V / 17.2 V - Breakdown occurs within this range at 1 mA, defining turn-on threshold |
| VC @ IPPM | 23.2 V - Clamped voltage seen by protected circuit during full 500 W surge event |
| IPPM | 21.6 A - Peak surge current supported under 10/1000 µs waveform without failure |
| PPPM | 500 W - Surge power handling capacity per single transient event |
| TJ max. | +150 °C - Maximum allowable junction temperature for reliable long-term operation |
| Package | SMA (DO-214AC) - Surface-mount package with 5.28 mm × 4.50 mm footprint and 2.29 mm height |
Pinout & Package
SMA5J14CA-M3/61 is housed in an SMA (DO-214AC) surface-mount package with two terminals. As a bidirectional TVS, it has no polarity marking; both terminals are functionally identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals conduct equally during positive or negative surges - no cathode band or polarity identification required |
| Case (body) | Thermal and mechanical interface | Plastic-molded body meets UL 94 V-0 flammability rating; provides mechanical anchoring and thermal dissipation path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for downstream ICs |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without baking - compatible with standard SMT assembly |
| Halogen-free & RoHS-compliant | Fulfills environmental compliance requirements for automotive and industrial end equipment |
| Glass-passivated junction | Enhances reliability and stability of breakdown characteristics over temperature and lifetime |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector or PCB edge to shunt surge energy before reaching MCU or signal conditioner. Use Value: Limits induced transients to ≤23.2 V, preserving integrity of 3.3 V or 5 V logic interfaces and meeting ISO 7637-2 Pulse 1/2a/5a immunity requirements. | Use Scenario: Safeguarding PLC digital input modules and fieldbus termination points against lightning-induced surges and inductive switching spikes. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on 24 V DC input lines, coordinated with upstream fuse and downstream filtering. Use Value: Withstands 500 W surges while maintaining low leakage (<1 μA at 14 V), ensuring minimal impact on input threshold detection accuracy. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB PD chargers exposed to mains-borne transients. IC Role / Device Role / Timing Role: Fast-response clamp across DC output rails to prevent overvoltage damage to connected devices during regulator fault conditions. Use Value: 21.6 A IPPM and 23.2 V VC ensure safe clamping below typical 15–20 V overvoltage thresholds of USB-C and legacy 5 V/12 V peripherals. | Use Scenario: Protection of Ethernet PHY interfaces and analog line drivers in VoIP gateways and base station control cards. IC Role / Device Role / Timing Role: Bidirectional transient suppressor on differential pairs or bias rails to maintain signal integrity during EFT/burst events. Use Value: Symmetrical clamping preserves common-mode rejection ratio (CMRR) and avoids DC offset shift in sensitive analog receive paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J14CA-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free; commercial grade only | Lacks halogen-free certification; unsuitable for automotive OEMs requiring IEC 61249-2-21 compliance | Select when halogen-free content is not mandated and cost optimization is prioritized |
| SMA5J14CAHM3_A/H | Identical specs plus AEC-Q101 qualification; same M3 halogen-free material; H-coded tape-and-reel packaging | Qualified for automotive underhood use; supports extended temperature validation and lifetime reliability testing | Select for automotive production programs requiring formal component qualification and traceable lot data |
Compared with SMA5J14CA-M3/61, the E3 variant offers baseline RoHS compliance at lower cost but excludes halogen-free assurance, while the HM3_A/H variant adds formal AEC-Q101 qualification and alternate packaging-enabling drop-in use in qualified automotive designs without layout change.
Availability
SMA5J14CA-M3/61 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line card surge suppression requiring stable component supply, consistent halogen-free material content, and MSL Level 1 assembly compatibility.
Supply support for SMA5J14CA-M3/61 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, TVS devices, and optoelectronics with emphasis on reliability, power density, and application-specific qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and communications systems where robustness against ISO 7637, IEC 61000-4-2/4/5, and lightning-induced surges is critical.
FAQ
What is the clamping voltage of SMA5J14CA-M3/61 under a 10/1000 µs surge?
The SMA5J14CA-M3/61 clamps to a maximum of 23.2 V when subjected to its rated peak pulse current of 21.6 A using the standardized 10/1000 µs waveform. This value is measured at the device terminals under defined test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads), and represents the upper limit of voltage imposed on protected circuitry during surge events.
Is SMA5J14CA-M3/61 suitable for automotive applications?
SMA5J14CA-M3/61 itself is commercial-grade and halogen-free RoHS-compliant but not AEC-Q101 qualified. However, the pin-identical SMA5J14CAHM3_A/H variant is fully AEC-Q101 qualified and shares identical electrical and thermal specifications. For production automotive use, that HM3-suffixed version is recommended, while SMA5J14CA-M3/61 remains appropriate for prototyping, non-safety-critical subsystems, or industrial applications.
Does SMA5J14CA-M3/61 have polarity markings?
No - SMA5J14CA-M3/61 is a bidirectional TVS diode and carries no cathode band or polarity marking. Both terminals are functionally identical and may be connected without regard to orientation. This symmetry simplifies PCB layout and eliminates risk of reverse installation, unlike unidirectional variants such as SMA5J14A-M3/61 which feature a visible cathode band.
What is the maximum operating temperature for SMA5J14CA-M3/61?
The SMA5J14CA-M3/61 has a specified operating junction and storage temperature range of -55 °C to +150 °C. Its thermal resistance values (RθJA = 80 °C/W, RθJL = 25 °C/W) allow direct estimation of junction temperature rise under given power dissipation and board layout conditions - critical for ensuring long-term reliability in high-ambient environments like engine compartments or industrial enclosures.
How does the M3 suffix differ from E3 in SMA5J14CA-M3/61?
The M3 suffix denotes halogen-free, RoHS-compliant construction meeting IEC 61249-2-21 requirements, whereas E3 indicates RoHS-compliance without halogen-free assurance. Both share identical electrical performance, package, and MSL Level 1 rating. SMA5J14CA-M3/61 is preferred for automotive Tier 1 suppliers and industrial OEMs with strict material declarations, while E3 variants serve cost-sensitive commercial applications where halogen content is unrestricted.
SMA5J14CA-M3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J14CA-M3/61 FAQ
1.How can I place an order for SMA5J14CA-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J14CA-M3/61 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 SMA5J14CA-M3/61 reliable?
The price and inventory of SMA5J14CA-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J14CA-M3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J14CA-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J14CA-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J14CA-M3/61?
SMA5J14CA-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J14CA-M3/61 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 SMA5J14CA-M3/61?
For technical support, including SMA5J14CA-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J14CA-M3/61 requirements.
6.How does Aetrix verify that SMA5J14CA-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J14CA-M3/61 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 SMA5J14CA-M3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J14CA-M3/61?
All SMA5J14CA-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J14CA-M3/61, 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 SMA5J14CA-M3/61 part is unused and in its original packaging.
Return procedure for SMA5J14CA-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J14CA-M3/61 Tags
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