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Vishay General Semiconductor - Diodes Division SMA6J15A-E3/5A
- Part No.:
- SMA6J15A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J15A-E3/5A.pdf
- Description:
- TVS DIODE 15VWM 27.7VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
SMA6J15A-E3/5A 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 a 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR at IT = 1 mA), 23.6 V maximum clamping voltage at 25.4 A (10/1000 μs), and 600 W peak pulse power rating. It protects MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMA6J15A-E3/5A datasheet, SMA6J15A-E3/5A pinout, SMA6J15A-E3/5A application, or SMA6J15A-E3/5A equivalent, key selection criteria include clamping voltage at rated IPP, unidirectional polarity, SMA package thermal resistance (RθJA = 120 °C/W), and compliance with J-STD-020 MSL level 1.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents <0.2 μA leakage at 15 V, then avalanches sharply above 16.7 V to limit transient energy. Its dynamic resistance of 0.201 Ω enables low-voltage clamping during 10/1000 μs surges up to 25.4 A.
The device is optimized for PCB-level protection against inductive switching spikes and lightning-induced surges. Its SMA package supports automated placement and meets UL 94 V-0 flammability; cathode identification via color band ensures correct orientation during assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 12 V nominal systems. |
| VBR min/max | 16.7 V / 18.5 V at 1 mA - Tight breakdown tolerance ensures predictable turn-on across temperature and production lots. |
| VC at IPP | 23.6 V at 25.4 A (10/1000 μs) - Clamping voltage directly limits stress on downstream ICs during standardized surge events. |
| PPPM (10×1000 μs) | 600 W - Sustained surge energy handling capability for industrial-grade transient immunity per IEC 61000-4-5. |
| IFSM | 50 A - Peak forward surge current rating supports robustness against accidental reverse-bias misapplication or fault currents. |
| TJ max | +150 °C - Maximum junction temperature enables reliable operation in enclosed industrial enclosures without forced cooling. |
| RθJA | 120 °C/W - Thermal resistance value informs minimum copper pad area (5.0 mm × 5.0 mm per terminal) required for thermal derating. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional, cathode indicated by molded band. Matte tin-plated leads, RoHS-compliant (E3 suffix), MSL level 1, LF peak 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction or surge shunting | Connected to protected line (e.g., VCC or signal); must be routed with low-inductance trace to minimize clamping overshoot. |
| Cathode | Current exit point during avalanche conduction | Connected to ground reference plane; requires low-impedance return path to sustain clamping performance under high di/dt. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping voltage control | 23.6 V at 25.4 A (10/1000 μs) - Enables precise overvoltage limiting for 15 V rail protection without overdesigning downstream components. |
| Low dynamic resistance | 0.201 Ω - Reduces voltage overshoot during fast-rising transients, improving protection margin for sensitive logic inputs. |
| Automated placement compatibility | SMA (DO-214AC) footprint with J-STD-020 MSL level 1 - Supports high-yield SMT assembly without moisture sensitivity concerns. |
| Industrial-grade reliability | -55 °C to +150 °C operating range and 100% JESD22-B102 class 2 whisker testing - Ensures long-term stability in harsh environments. |
Applications
| Power Supply Input Protection | Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V DC input to industrial PLC module exposed to relay coil flyback and load dump. IC Role / Device Role / Timing Role: Shunt TVS diode placed between VIN and GND to clamp transients before they reach DC/DC converter input stage. Use Value: Limits voltage to ≤23.6 V during 25.4 A surges, preventing damage to input capacitors and controller ICs rated for 28 V absolute maximum. |
Use Scenario: Analog output line (0–10 V) from pressure sensor in factory automation system subject to ESD and cable coupling. IC Role / Device Role / Timing Role: Unidirectional TVS connected across signal and ground to suppress sub-100 ns ESD events and longer inductive spikes. Use Value: Leakage <0.2 μA at 15 V ensures no loading of precision analog output; clamping action preserves signal integrity below ADC overvoltage threshold. |
| MOSFET Gate Driver Protection | Telecom Interface Protection |
Use Scenario: High-side N-channel MOSFET gate drive circuit in motor control H-bridge subjected to shoot-through induced voltage spikes. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp Miller-induced transients and prevent unintended turn-on or oxide rupture. Use Value: Fast avalanche response (<1 ns) and 23.6 V clamping protect 20 V-rated gate oxide while maintaining driver timing integrity. |
Use Scenario: RS-485 data line in outdoor telecom node exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS on differential pair (A/GND and B/GND) to absorb common-mode surges without distorting differential signaling. Use Value: 600 W peak power rating sustains multiple 10/1000 μs surges per IEC 61000-4-5 Level 3; SMA package allows compact layout near connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J15CA-E3/5A | Bidirectional variant; symmetrical clamping (±23.6 V) vs. unidirectional (0 V to 23.6 V). | Required for AC-coupled or bipolar signal lines where reverse polarity transients occur. | Select SMA6J15CA-E3/5A only when protecting bidirectional signals (e.g., USB D+/D−, RS-232); SMA6J15A-E3/5A is optimal for DC rails and unidirectional analog lines. |
| SMCJ15A-E3/57T | Larger SMC (DO-214AB) package; higher 1500 W PPPM (10×1000 μs), same VWM/VBR/VC ratings. | Used where higher surge energy handling is needed and board space permits larger footprint. | Choose SMCJ15A-E3/57T for >1 kV lightning surge immunity in outdoor equipment; SMA6J15A-E3/5A suits space-constrained internal PCB protection. |
Compared with SMA6J15CA-E3/5A and SMCJ15A-E3/57T, the SMA6J15A-E3/5A offers optimal balance of compact SMA footprint, 600 W surge rating, and unidirectional clamping-ideal for cost-sensitive, space-limited DC power and analog signal protection where polarity is fixed.
Availability
SMA6J15A-E3/5A is available at Aetrix Electronics and suitable for industrial PLCs, sensor interface modules, and telecom line cards requiring stable component supply with RoHS-compliant, MSL level 1 packaging.
Supply support for SMA6J15A-E3/5A 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, precision, and application-specific performance.
The SMA6J series is engineered for robust transient suppression in industrial, automotive, and telecom systems-delivering consistent clamping behavior, low leakage, and high surge endurance in surface-mount form factors.
FAQ
What is the maximum clamping voltage of the SMA6J15A-E3/5A under standard test conditions?
The SMA6J15A-E3/5A has a maximum clamping voltage (VC) of 23.6 V when subjected to a 10/1000 μs waveform at 25.4 A peak pulse current. This value is measured per JEDEC standards and reflects actual voltage seen by protected circuitry during surge events. The SMA6J15A-E3/5A maintains this clamping performance across its specified operating temperature range.
Is the SMA6J15A-E3/5A suitable for protecting 12 V automotive circuits?
Yes, the SMA6J15A-E3/5A is commonly used for 12 V system protection due to its 15 V stand-off voltage (VWM), which provides adequate margin above nominal 12 V while triggering reliably during load-dump or inductive spike events. Its -55 °C to +150 °C operating range and industrial-grade construction make the SMA6J15A-E3/5A appropriate for under-hood and control module applications.
Does the SMA6J15A-E3/5A have a bidirectional version?
Yes-the SMA6J15CA-E3/5A is the bidirectional counterpart, offering symmetrical clamping for ±23.6 V. Unlike the unidirectional SMA6J15A-E3/5A, the "C" variant protects both positive and negative transients, making it suitable for AC-coupled or differential signal lines. The SMA6J15A-E3/5A itself is strictly unidirectional and must be oriented with cathode toward ground.
What is the thermal resistance of the SMA6J15A-E3/5A, and how does it affect PCB layout?
The SMA6J15A-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. To maintain safe junction temperatures during repeated surges, designers must allocate sufficient copper area and avoid thermal bottlenecks. The SMA6J15A-E3/5A's RθJA value directly determines allowable power dissipation at elevated ambient temperatures.
How does the E3/5A suffix impact packaging and compliance for the SMA6J15A-E3/5A?
The "E3" suffix indicates RoHS-compliant, matte tin-plated leads; "5A" denotes 13-inch diameter plastic tape-and-reel packaging with 7500 units per reel. This configuration meets J-STD-020 MSL level 1 requirements and supports high-volume automated assembly. The SMA6J15A-E3/5A is certified for industrial-grade reliability and halogen-free alternatives are available under M3 suffix variants.
SMA6J15A-E3/5A 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 123A (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)
SMA6J15A-E3/5A FAQ
1.How can I place an order for SMA6J15A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J15A-E3/5A 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 SMA6J15A-E3/5A reliable?
The price and inventory of SMA6J15A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J15A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA6J15A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J15A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J15A-E3/5A?
SMA6J15A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J15A-E3/5A 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 SMA6J15A-E3/5A?
For technical support, including SMA6J15A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J15A-E3/5A requirements.
6.How does Aetrix verify that SMA6J15A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA6J15A-E3/5A 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 SMA6J15A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA6J15A-E3/5A?
All SMA6J15A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J15A-E3/5A, 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 SMA6J15A-E3/5A part is unused and in its original packaging.
Return procedure for SMA6J15A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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