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Vishay General Semiconductor - Diodes Division SMA6J16A-E3/61
- Part No.:
- SMA6J16A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J16A-E3/61.pdf
- Description:
- TVS DIODE 16VWM 29.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,787
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Product details
Overview
SMA6J16A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount TransZorb® transient voltage suppressor in SMA (DO-214AC) package, with 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It clamps transients to ≤25.2 V at 23.8 A IPPM and is used for protecting MOSFETs, ICs, and sensor signal lines in industrial power supplies.
For engineers reviewing the SMA6J16A-E3/61 datasheet, SMA6J16A-E3/61 pinout, SMA6J16A-E3/61 application, or SMA6J16A-E3/61 equivalent, key selection criteria include unidirectional polarity, 120 °C/W junction-to-ambient thermal resistance, 0.229 Ω dynamic resistance, 150 °C max junction temperature, and RoHS-compliant matte tin-plated leads per J-STD-002.
Technical Context
This TVS diode operates as a clamping device triggered by reverse-biased avalanche breakdown above VBR. Its low dynamic resistance (0.229 Ω) ensures tight clamping during 10/1000 μs surges up to 23.8 A, while its 120 °C/W RθJA requires PCB copper pad thermal management per recommended 5.0 mm × 5.0 mm layout.
Designed for single-polarity transient suppression only, it exhibits 0.2 μA leakage at 16 V VWM and 25.2 V max clamping voltage at rated IPPM. The SMA (DO-214AC) package supports automated placement and meets MSL level 1 with 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 17.8 V / 19.7 V at 1 mA - guaranteed avalanche onset range defining turn-on threshold |
| VC at IPPM | 25.2 V at 23.8 A (10/1000 μs) - actual clamping voltage under rated surge, limiting downstream stress |
| PPPM (10/1000 μs) | 600 W - surge energy handling capacity for standard lightning/surge waveforms |
| RθJA | 120 °C/W - thermal resistance requiring ≥5.0 mm × 5.0 mm copper pads for safe 4 W dissipation at TA = 50 °C |
| Polarity | Unidirectional - protects against positive transients only; cathode marked by band |
| IFSM | 50 A - non-repetitive forward surge rating for accidental polarity reversal events |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile, RoHS-compliant, matte tin-plated leads, MSL level 1, 260 °C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance reference; forms clamping loop with cathode |
| Cathode | Avalanche conduction node / protected line connection | Connected to line being protected (e.g., MOSFET gate, IC supply rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables high-density PCB layouts and compatibility with automated SMT assembly lines |
| Clamping voltage ≤25.2 V at 23.8 A | Ensures protected ICs (e.g., 3.3 V or 5 V logic) remain below absolute maximum ratings during surge |
| Dynamic resistance 0.229 Ω | Minimizes voltage overshoot during fast-rising transients, improving protection fidelity |
| 150 °C max junction temperature | Supports operation in enclosed industrial enclosures without derating below 50 °C ambient |
| RoHS-compliant, J-STD-002 solderable leads | Guarantees reliable interconnect integrity in lead-free reflow processes |
Applications
| Motor Drive Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Suppressing inductive kickback from 24 V DC solenoids and brushed motors in PLC output modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed across motor coil terminals to clamp flyback voltage spikes. Use Value: Limits transient voltage to ≤25.2 V, preventing gate oxide damage to driving N-channel MOSFETs rated for 30 V VDS. | Use Scenario: Protecting analog output lines (4–20 mA) and digital I²C buses of temperature/pressure sensors in factory automation. IC Role / Device Role / Timing Role: Standoff-connected TVS on signal lines to absorb ESD and cable-coupled noise. Use Value: 0.2 μA leakage at 16 V VWM avoids loading precision current loops; 25.2 V clamping preserves sensor IC input stage integrity. |
| Power Supply Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage protection on 16 V DC input rails of embedded power modules. IC Role / Device Role / Timing Role: Parallel-connected TVS shunting surges before DC/DC converter input capacitors. Use Value: Matches 16 V nominal rail with 17.8–19.7 V VBR window, enabling fast response without false triggering during ripple. | Use Scenario: Front-end protection of Ethernet PHY power and data lines against lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Unidirectional clamping device on 12–16 V bias rails feeding PoE interface ICs. Use Value: 600 W (10/1000 μs) rating handles telecom-grade surge standards; SMA footprint allows dense placement near connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J16CA-E3/61 | Bidirectional variant; symmetric ±16 V VWM, dual avalanche structure | Required where AC-coupled or bidirectional signal lines (e.g., RS-485) need protection | Select only if polarity reversal or AC transients are present; not interchangeable with SMA6J16A-E3/61 due to different breakdown behavior |
| SMCJ16A-E3/57T | Higher 1500 W PPPM (10/1000 μs), larger SMC (DO-214AB) package, 110 °C/W RθJA | Suitable for higher-energy surges where board space permits larger footprint | Choose when surge threat exceeds 600 W; requires PCB redesign due to larger body and different pad layout |
Compared with SMA6J16A-E3/61, the SMA6J16CA-E3/61 adds bidirectional capability at the cost of higher capacitance and reduced DC bias margin, while the SMCJ16A-E3/57T trades compactness for 2.5× higher surge power handling-neither is pin-compatible, and both require circuit validation for replacement.
Availability
SMA6J16A-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, sensor interface modules, and telecom power supply designs requiring stable component supply, RoHS compliance, and MSL level 1 reflow support.
Supply support for SMA6J16A-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, and protection devices with emphasis on reliability and automotive/industrial qualification.
The SMA6J series is designed specifically for robust, surface-mount transient suppression in space-constrained industrial and telecom equipment where consistent clamping performance and automated assembly are critical.
FAQ
What is the maximum clamping voltage of the SMA6J16A-E3/61 under a 10/1000 μs surge?
The SMA6J16A-E3/61 has a maximum clamping voltage (VC) of 25.2 V when subjected to its rated peak pulse current of 23.8 A with a 10/1000 μs waveform. This value is measured at TA = 25 °C on PCBs with 5.0 mm × 5.0 mm copper pads per terminal and defines the upper voltage limit imposed on protected circuits during standardized surge events.
Is SMA6J16A-E3/61 suitable for bidirectional signal line protection?
No, SMA6J16A-E3/61 is unidirectional only, intended for DC-biased lines like power rails or single-ended digital outputs. For bidirectional protection (e.g., RS-485, USB, or AC-coupled interfaces), the SMA6J16CA-E3/61 - its bidirectional counterpart - must be used instead, as SMA6J16A-E3/61 will not conduct on negative transients.
What is the thermal resistance and how does it affect PCB layout for SMA6J16A-E3/61?
The SMA6J16A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W. To maintain safe operation at its 4 W power dissipation rating (at TA = 50 °C), the PCB must use minimum 5.0 mm × 5.0 mm copper pads per terminal as specified in the Vishay datasheet - smaller pads cause excessive junction temperature rise and premature failure.
Does SMA6J16A-E3/61 meet lead-free reflow requirements?
Yes, SMA6J16A-E3/61 is RoHS-compliant (E3 suffix) and qualified to MSL level 1 per J-STD-020, with a maximum lead-free reflow peak temperature of 260 °C. Its matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, supporting standard Pb-free assembly processes without special handling.
How does the dynamic resistance of SMA6J16A-E3/61 impact its transient response?
The SMA6J16A-E3/61 has a dynamic resistance (RD) of 0.229 Ω, which directly determines voltage overshoot during fast transients. Lower RD yields tighter clamping - for example, a 10 A surge adds only ~2.3 V beyond VBR, ensuring predictable, low-overshoot protection critical for sensitive 3.3 V or 5 V ICs downstream of the SMA6J16A-E3/61.
SMA6J16A-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 29.5V
- Current - Peak Pulse (10/1000µs):
- 119A (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)
SMA6J16A-E3/61 FAQ
1.How can I place an order for SMA6J16A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J16A-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 SMA6J16A-E3/61 reliable?
The price and inventory of SMA6J16A-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 SMA6J16A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J16A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J16A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J16A-E3/61?
SMA6J16A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J16A-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 SMA6J16A-E3/61?
For technical support, including SMA6J16A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J16A-E3/61 requirements.
6.How does Aetrix verify that SMA6J16A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J16A-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 SMA6J16A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J16A-E3/61?
All SMA6J16A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J16A-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 SMA6J16A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J16A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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