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Vishay General Semiconductor - Diodes Division SMA6J10A-E3/61
- Part No.:
- SMA6J10A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J10A-E3/61.pdf
- Description:
- TVS DIODE 10VWM 19.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA6J10A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR at IT = 1 mA), 15.7 V maximum clamping voltage at 38.2 A (10/1000 μs), 600 W peak pulse power rating, and operates across –55 °C to +150 °C junction temperature range. It protects MOSFETs and ICs in industrial power supplies.
For engineers reviewing the SMA6J10A-E3/61 datasheet, SMA6J10A-E3/61 pinout, SMA6J10A-E3/61 application, or SMA6J10A-E3/61 equivalent, key selection criteria include clamping voltage at rated IPP, unidirectional polarity confirmation, thermal resistance (RθJA = 120 °C/W), RoHS-compliant E3/61 tape-and-reel packaging, and compatibility with automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered above its breakdown threshold, exhibiting low dynamic resistance (RD = 0.089 Ω) to limit transient energy dissipation across protected circuits. Its unidirectional configuration enables integration into DC-biased lines without reverse conduction during normal operation.
Designed for transient suppression per IEC 61000-4-5 (surge) and IEC 61000-4-2 (ESD), it delivers 4000 W peak pulse power under 8/20 μs waveform and maintains stable VBR over temperature (αT = 7.8 × 10⁻⁴ /°C). The SMA package supports MSL Level 1 handling and 260 °C reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin. |
| VBR min/max | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC at IPP | 15.7 V at 38.2 A (10/1000 μs) - Clamping voltage seen by protected circuit under standard surge test condition. |
| PPPM (10×1000 μs) | 600 W - Peak transient energy absorption capability; determines survivability of common lightning-induced surges. |
| ID at VWM | 1 μA max - Reverse leakage current at stand-off voltage; critical for low-power sensor line integrity. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal derating boundary for sustained power dissipation. |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient; used to calculate temperature rise under PD = 4 W at TA = 50 °C. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional polarity indicated by cathode band. Matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal during clamping | Connected to lower-potential side of protected line; conducts surge current toward ground path. |
| Cathode | Reverse-biased terminal during normal operation | Marked with color band; tied to higher-potential rail (e.g., VCC or signal high); defines unidirectional clamping direction. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables high-density PCB layouts and compatibility with automated pick-and-place equipment (MSL Level 1). |
| Clamping voltage ≤15.7 V at 38.2 A | Ensures downstream ICs rated for ≤16 V logic rails remain within absolute maximum ratings during surge events. |
| Dynamic resistance 0.089 Ω | Minimizes voltage overshoot during fast-rising transients by reducing IR drop across the device itself. |
| RoHS-compliant E3 termination | Meets environmental compliance requirements for industrial and telecom end equipment without lead-free process compromises. |
| 150 °C max junction temperature | Supports operation in enclosed, thermally constrained environments such as motor drives and power converters. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Suppresses load-dump transients and relay-switching spikes on 12 V input rails feeding DC/DC converters. IC Role / Device Role: Unidirectional TVS placed between input rail and chassis ground to clamp positive-going surges. Use Value: Limits voltage excursion to ≤15.7 V, preventing damage to 16 V-rated buck controller ICs and gate drivers. |
Use Scenario: Protects LIN bus transceivers and microcontroller I/O pins from ESD and battery reversal coupling. IC Role / Device Role: Standoff-rated TVS on 12 V supply line upstream of LDO regulators powering BCM MCU. Use Value: Withstands 4000 W (8/20 μs) surges while maintaining <1 μA leakage at 10 V, preserving sleep-mode current budget. |
| Telecom PoE Interface | Consumer Appliance Motor Drive |
Use Scenario: Shields Ethernet PHY power pins (Mode A/B) against induced surges from nearby AC wiring or lightning coupling. IC Role / Device Role: Primary clamping device on PSE-side 48 V DC feed before isolation transformer and DC/DC stage. Use Value: Delivers 600 W (10/1000 μs) surge handling with 120 °C/W RθJA, enabling thermal design with minimal copper area. |
Use Scenario: Guards H-bridge gate driver supply inputs against back-EMF spikes generated by brushed DC motors. IC Role / Device Role: Unidirectional suppressor on 15 V auxiliary rail feeding half-bridge drivers in washing machine control boards. Use Value: Breakdown tolerance (11.1–12.3 V) aligns with 15 V rail margin; clamping at 15.7 V prevents latch-up in 16 V-rated drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J10CA-E3/61 | Bidirectional variant; symmetric clamping for AC-coupled or floating lines; VBR ±11.1–12.3 V; same VC and PPPM ratings. | Required where bidirectional transients exist (e.g., data lines, AC inputs); not suitable for DC-biased single-rail protection. | Select SMA6J10CA-E3/61 only when protecting balanced or AC-coupled signals; SMA6J10A-E3/61 remains optimal for unidirectional DC rails. |
| SMCJ10A-E3/57T | Larger SMC (DO-214AB) package; higher 1500 W PPPM (10/1000 μs); same VWM/VBR/VC specs; RθJA = 30 °C/W vs. 120 °C/W. | Better thermal performance and surge capacity but requires 3× PCB area; suited for high-reliability industrial systems with space margin. | Choose SMCJ10A-E3/57T when surge duty cycle or ambient temperature exceeds SMA6J10A-E3/61 thermal limits; otherwise prefer SMA6J10A-E3/61 for space-constrained designs. |
Compared with SMA6J10CA-E3/61 and SMCJ10A-E3/57T, the SMA6J10A-E3/61 offers optimal balance of compact size, automated assembly compatibility, and sufficient 600 W surge rating for cost-sensitive DC power rail protection-without over-specifying package size or polarity capability.
Availability
SMA6J10A-E3/61 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom PoE interfaces, and consumer appliance motor controls requiring stable component supply and RoHS-compliant SMT TVS protection.
Supply support for SMA6J10A-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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMA6JxxA series is part of Vishay's Transient Voltage Suppressor portfolio, engineered for robust, low-profile surge protection in space-constrained industrial, automotive, and telecom power and signal lines.
FAQ
What is the maximum clamping voltage of the SMA6J10A-E3/61 under standard surge conditions?
The SMA6J10A-E3/61 exhibits a maximum clamping voltage (VC) of 15.7 V when subjected to a 10/1000 μs surge waveform at 38.2 A peak pulse current. This value is measured per JEDEC standards and confirmed in the Vishay datasheet revision 09-Jan-2024. The clamping behavior is defined by its dynamic resistance (0.089 Ω) and breakdown characteristics, ensuring predictable voltage limiting for protected circuits. Designers must verify layout thermal relief and pad size to maintain this VC performance in actual application.
Is the SMA6J10A-E3/61 suitable for protecting 3.3 V or 5 V logic lines?
No, the SMA6J10A-E3/61 is not suitable for protecting 3.3 V or 5 V logic lines because its 10 V stand-off voltage (VWM) exceeds those rail voltages, resulting in premature conduction and excessive leakage. It is specifically designed for 12 V and higher DC rails-such as industrial power inputs, automotive 12 V systems, or PoE 48 V feeds-where VWM ≥10 V provides adequate margin. For 3.3 V/5 V lines, lower-VWM TVS devices like SMAJ5.0A or SMAJ6.0A should be selected instead of SMA6J10A-E3/61.
Does the SMA6J10A-E3/61 have bidirectional capability?
No, the SMA6J10A-E3/61 is strictly unidirectional, as confirmed in the Vishay datasheet under "Features" and "Polarity" sections. It conducts only during positive transients relative to its cathode-marked terminal and blocks reverse current under normal bias. For bidirectional protection, the pin-compatible SMA6J10CA-E3/61 variant must be used. Using SMA6J10A-E3/61 on AC or floating lines may result in incomplete surge suppression or device failure.
What is the thermal resistance and how does it affect PCB layout for the SMA6J10A-E3/61?
The SMA6J10A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W, measured on a PCB with 5.0 mm × 5.0 mm copper pads per terminal. This high RθJA means thermal performance is highly dependent on copper area: reducing pad size increases junction temperature rise under 4 W steady-state dissipation. Layouts must follow Vishay's recommended mounting pad dimensions (0.194″ × 0.100″) and avoid thermal isolation to prevent exceeding the +150 °C TJ max limit during surge events.
What does the "E3/61" suffix indicate in SMA6J10A-E3/61?
The "E3" suffix denotes RoHS-compliant, matte tin-plated terminations meeting JESD 201 Class 2 whisker resistance, while "/61" specifies the preferred packaging: 7-inch diameter plastic tape-and-reel containing 1800 units. This format ensures compatibility with high-speed SMT placement equipment and satisfies industrial-grade environmental compliance requirements. The E3/61 variant is distinct from M3/61 (halogen-free) and E3/5A (13-inch reel), and all variants share identical electrical specifications for SMA6J10A-E3/61.
SMA6J10A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 19.6V
- Current - Peak Pulse (10/1000µs):
- 184A (8/20µs)
- Power - Peak Pulse:
- 4000W (4kW)
- 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)
SMA6J10A-E3/61 FAQ
1.How can I place an order for SMA6J10A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J10A-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 SMA6J10A-E3/61 reliable?
The price and inventory of SMA6J10A-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 SMA6J10A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J10A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J10A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J10A-E3/61?
SMA6J10A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J10A-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 SMA6J10A-E3/61?
For technical support, including SMA6J10A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J10A-E3/61 requirements.
6.How does Aetrix verify that SMA6J10A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J10A-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 SMA6J10A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J10A-E3/61?
All SMA6J10A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J10A-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 SMA6J10A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J10A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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