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Vishay General Semiconductor - Diodes Division SMA6J15A-E3/61
- Part No.:
- SMA6J15A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J15A-E3/61.pdf
- Description:
- TVS DIODE 15VWM 27.7VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,497
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Product details
Overview
SMA6J15A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in SMA (DO-214AC) package, with 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR at IT = 1 mA), and 600 W peak pulse power rating (10 × 1000 µs waveform). It clamps transients to ≤23.6 V at 25.4 A IPPM and is used for protecting MOSFETs, ICs, and sensor signal lines against inductive switching surges in industrial and telecom equipment.
For engineers reviewing the SMA6J15A-E3/61 datasheet, SMA6J15A-E3/61 pinout, SMA6J15A-E3/61 application, or SMA6J15A-E3/61 equivalent, key selection criteria include unidirectional polarity, 23.6 V max clamping voltage at rated surge current, 0.201 Ω dynamic resistance, 120 °C/W junction-to-ambient thermal resistance, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response transient suppression. Its unidirectional configuration enables protection of DC-biased lines without reverse conduction during normal operation. The 15 V VWM rating ensures reliable blocking below system operating voltage while maintaining low leakage (<0.2 µA).
Clamping behavior follows VCL = RD × IPP + VBR(max), with RD = 0.201 Ω enabling predictable voltage rise under surge. Thermal design relies on PCB copper pad area (5.0 mm × 5.0 mm per terminal) to sustain 4 W power dissipation at TA = 50 °C and support 150 °C maximum junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Stand-off voltage; blocks normal operation up to 15 V without leakage exceeding 0.2 µA |
| VBR (min/max) | 16.7 V / 18.5 V at IT = 1 mA - Ensures consistent avalanche initiation across production lot |
| VCL @ IPP = 25.4 A | 23.6 V - Maximum clamped voltage during 10/1000 µs surge; defines protected circuit's worst-case overvoltage |
| PPPM (10 × 1000 µs) | 600 W - Sustains single high-energy transients common in motor drive and relay switching |
| RD | 0.201 Ω - Dynamic resistance determines clamping slope; enables precise overvoltage prediction |
| TJ(max) | +150 °C - Enables use in high-ambient environments like industrial control cabinets |
| RθJA | 120 °C/W - Requires minimum 5.0 mm × 5.0 mm copper pads per terminal for thermal management |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by color band. Complies with MSL level 1 (J-STD-020) and JESD 201 class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; connected to protected line's low-side reference | Accepts surge current into ground path; must be routed to low-impedance return plane |
| Cathode | Current exit during reverse-biased clamping; connected to protected line's high-side signal | Provides clamping path to ground when transient exceeds VWM; marked by band |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional polarity only | Enables DC line protection without reverse leakage during normal bias; eliminates need for series blocking diode |
| 600 W peak pulse power (10 × 1000 µs) | Handles high-energy transients from inductive loads such as solenoids and relays in industrial PLCs |
| Clamping voltage ≤23.6 V at 25.4 A | Keeps downstream 15 V logic or analog circuits within safe operating margin during surge events |
| RoHS-compliant, matte tin plating | Ensures solderability per J-STD-002 and long-term reliability in automated SMT assembly |
| MSL level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without preconditioning |
Applications
| Industrial Motor Control | Telecom Power Interface |
|---|---|
Use Scenario: Protecting gate drivers and microcontrollers from back-EMF spikes generated by brushed DC motors and contactor coils. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across motor supply rail or driver output to clamp inductive kick. Use Value: Limits voltage excursion to ≤23.6 V, preventing latch-up or oxide breakdown in 15 V-rated logic and gate drivers. |
Use Scenario: Safeguarding PoE-powered Ethernet PHYs and DC-DC converters from lightning-induced surges on 48 V input lines. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC bus to absorb 8/20 µs surges up to 4000 W. Use Value: Withstands 4000 W (8/20 µs), providing robust front-end protection before downstream filtering and regulation stages. |
| Automotive Body Control Module | Consumer Sensor Hub |
Use Scenario: Shielding LIN bus transceivers and window lift motor controllers from load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS on 12 V supply rail to suppress slow-rising (10/1000 µs) transients up to 600 W. Use Value: Maintains 15 V VWM compatibility with automotive 12 V nominal systems while clamping to 23.6 V. |
Use Scenario: Protecting I²C and analog sensor inputs (e.g., temperature, humidity) from ESD and board-level coupling noise. IC Role / Device Role / Timing Role: Low-leakage (≤0.2 µA) TVS on signal lines to preserve accuracy without loading sensitive analog paths. Use Value: Delivers <0.2 µA leakage at 15 V, avoiding measurement drift in precision sensor front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J15CA-E3/61 | Bidirectional variant; symmetric clamping for AC-coupled or floating lines | Required where signal lines lack defined DC bias or experience bipolar transients | Select SMA6J15CA-E3/61 only if bidirectional protection is needed; SMA6J15A-E3/61 is optimal for DC-biased rails |
| SMCJ15A-E3/73 | Larger SMC (DO-214AB) package; 1500 W PPPM (10 × 1000 µs); higher IFSM = 200 A | Suitable for higher-energy surge environments (e.g., outdoor telecom cabinets, heavy industrial) | Choose SMCJ15A-E3/73 when surge energy exceeds 600 W; SMA6J15A-E3/61 fits space-constrained PCBs with moderate threat levels |
Compared with SMA6J15CA-E3/61, SMA6J15A-E3/61 offers lower capacitance and tighter VBR tolerance for DC rail protection; versus SMCJ15A-E3/73, it trades surge capacity for 40 % smaller footprint and lower thermal mass-ideal for compact consumer and embedded designs.
Availability
SMA6J15A-E3/61 is available at Aetrix Electronics and suitable for industrial motor control, telecom power interface, and automotive body control module applications requiring stable component supply, RoHS compliance, and MSL level 1 handling.
Supply support for SMA6J15A-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and transient suppressors, with emphasis on reliability, precision, and application-specific performance.
The SMA6JxxA series targets cost-sensitive, high-volume transient protection in space-constrained surface-mount applications-optimized for automated placement and robust surge immunity in industrial and communications infrastructure.
FAQ
What is the maximum clamping voltage of the SMA6J15A-E3/61 at its rated peak pulse current?
The SMA6J15A-E3/61 exhibits a maximum clamping voltage (VCL) of 23.6 V at its rated peak pulse current of 25.4 A for a 10 × 1000 µs waveform. This value is measured under standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA6J15A-E3/61 achieves this with a dynamic resistance of 0.201 Ω, ensuring predictable clamping behavior across production lots.
Is the SMA6J15A-E3/61 suitable for protecting 15 V logic circuits?
Yes, the SMA6J15A-E3/61 is specifically designed for protecting 15 V systems: its 15 V stand-off voltage (VWM) ensures minimal leakage (<0.2 µA) during normal operation, while its 23.6 V clamping voltage provides a 5.6 V safety margin above the rail. This prevents damage to 15 V-rated ICs and gate drivers during transients. The SMA6J15A-E3/61 also features tight VBR range (16.7–18.5 V), guaranteeing reliable turn-on before overvoltage reaches critical thresholds.
Does the SMA6J15A-E3/61 have bidirectional capability?
No, the SMA6J15A-E3/61 is unidirectional only, as confirmed in the Vishay datasheet under FEATURES and ELECTRICAL CHARACTERISTICS. It conducts in reverse bias to clamp positive transients on DC lines but does not suppress negative-going surges. For bidirectional protection, the SMA6J15CA-E3/61 variant must be selected. The SMA6J15A-E3/61's unidirectional architecture minimizes capacitance and leakage, making it optimal for fixed-polarity rails.
What is the thermal resistance and how does it affect PCB layout for the SMA6J15A-E3/61?
The SMA6J15A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W, measured with 5.0 mm × 5.0 mm copper pads per terminal. This value directly dictates minimum copper area required to dissipate 4 W at TA = 50 °C without exceeding TJ(max) = 150 °C. Reducing pad size increases RθJA, risking thermal runaway during repeated surges. The SMA6J15A-E3/61's thermal performance is validated only with the specified pad layout per Vishay's mechanical drawings.
What packaging and compliance certifications apply to the SMA6J15A-E3/61?
The SMA6J15A-E3/61 ships in 7" diameter plastic tape and reel (package code 61), with 1800 units per reel. It is RoHS-compliant (per EU Directive 2011/65/EU), halogen-free, and meets UL 94 V-0 flammability rating for molding compound. Its matte tin-plated leads satisfy J-STD-002 solderability and JESD 201 class 2 whisker resistance. The SMA6J15A-E3/61 is rated MSL level 1, permitting unlimited floor life and 260 °C peak reflow without baking.
SMA6J15A-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):
- 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-E3/61 FAQ
1.How can I place an order for SMA6J15A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J15A-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 SMA6J15A-E3/61 reliable?
The price and inventory of SMA6J15A-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 SMA6J15A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J15A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J15A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J15A-E3/61?
SMA6J15A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J15A-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 SMA6J15A-E3/61?
For technical support, including SMA6J15A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J15A-E3/61 requirements.
6.How does Aetrix verify that SMA6J15A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J15A-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 SMA6J15A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J15A-E3/61?
All SMA6J15A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J15A-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 SMA6J15A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J15A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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