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Vishay General Semiconductor - Diodes Division SMA6J16A-E3/5A
- Part No.:
- SMA6J16A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J16A-E3/5A.pdf
- Description:
- TVS DIODE 16VWM 29.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,380
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Product details
Overview
SMA6J16A-E3/5A 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 at IT = 1 mA), 25.2 V max clamping voltage at 119 A (10/1000 μs), and 600 W peak pulse power rating. It protects MOSFETs and ICs in industrial power supplies against inductive switching transients.
For engineers reviewing the SMA6J16A-E3/5A datasheet, SMA6J16A-E3/5A pinout, SMA6J16A-E3/5A application, or SMA6J16A-E3/5A equivalent, key selection criteria include clamping voltage margin relative to protected device VDS/VDD, unidirectional polarity compatibility with DC-biased lines, thermal resistance (RθJA = 120 °C/W), and RoHS-compliant matte tin terminations for J-STD-002 solderability.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream components. Its dynamic resistance (RD = 0.229 Ω) directly determines clamping rise above VBR under surge conditions per VCL = RD × IPP + VBRmax.
Designed for PCB-mounted protection on DC rails and signal lines, it uses a planar junction structure in an epoxy-molded SMA package rated to 150 °C junction temperature, with MSL level 1 moisture sensitivity and 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before leakage exceeds 0.2 μA |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - guaranteed avalanche initiation range defining turn-on threshold |
| VC @ IPP | 25.2 V at 119 A (10/1000 μs) - clamping voltage limiting stress on protected IC during standard surge event |
| PPPM (10×1000 μs) | 600 W - peak transient energy handling capacity under industry-standard long-duration surge waveform |
| IFSM | 50 A - non-repetitive forward surge current rating for accidental polarity reversal events |
| RθJA | 120 °C/W - thermal resistance from junction to ambient on standard 5 mm × 5 mm copper pads, dictating derating above 50 °C |
| Polarity | Unidirectional - cathode band marked; only blocks reverse transients, conducts forward like rectifier |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads, UL 94 V-0 rated molding compound, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; carries full IPP during clamping |
| Cathode | Protected line connection / Surge sink | Connected to line being protected (e.g., 12–24 V rail); voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 25.2 V max at 119 A ensures MOSFETs with 30 V VDS rating maintain ≥4.8 V safety margin under IEC 61000-4-5 surge |
| Thermal robustness | RθJA = 120 °C/W enables 4 W dissipation at TA = 50 °C without heatsink-sufficient for intermittent surge duty |
| Manufacturing compatibility | MSL level 1 and 260 °C peak reflow rating support standard SMT assembly without baking or special handling |
| Reliability assurance | JESD 201 class 2 whisker resistance and 150 °C TJ max ensure stable operation in automotive under-hood and industrial control environments |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontrollers from flyback voltage spikes generated by relay and solenoid coil de-energization in PLC I/O modules. IC Role / Device Role / Timing Role: Shunt clamping device placed across 24 V DC supply rail upstream of LDO regulators and logic ICs. Use Value: Limits transient overshoot to ≤25.2 V, preventing latch-up or oxide breakdown in 3.3 V/5 V logic powered from same rail. | Use Scenario: Safeguarding LIN bus transceivers and sensor interface circuits against load dump and jump-start surges in door module ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and ground, with cathode to LIN, anode to GND. Use Value: Clamps 8/20 μs surges up to 4000 W without degradation, maintaining signal integrity below 12 V common-mode limit. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Input-stage protection on 48 V PoE-powered equipment front-ends exposed to Ethernet cable ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge clamp on DC input before DC-DC converter, sized for 600 W 10/1000 μs compliance. Use Value: Withstands repeated 1 kV/500 A surges per IEC 61000-4-5 Level 3 while maintaining <0.2 μA leakage at 16 V nominal. | Use Scenario: Overvoltage suppression on microcontroller VDD lines in washing machine main control boards subjected to pump motor commutation noise. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to MCU power pins, cathode to VDD, anode to GND. Use Value: Fast response (<1 ns) and low clamping voltage prevent brownout resets and flash corruption during 100 ns–1 μs transients. |
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-E3/5A | Bidirectional version; symmetric ±16 V standoff; higher capacitance (≈100 pF vs. ≈50 pF) | Required for AC-coupled or dual-polarity signal lines (e.g., RS-485); unsuitable for DC rails with defined polarity | Select SMA6J16CA-E3/5A only when protecting bidirectional data lines or floating references where reverse conduction must be blocked in both directions. |
| SMCJ16A-E3/57T | Larger SMC (DO-214AB) package; higher PPPM (1500 W); RθJA = 40 °C/W; same VWM/VBR/VC specs | Better thermal performance for high-duty-cycle surges; requires larger PCB footprint and different pad layout | Choose SMCJ16A-E3/57T when system-level testing reveals thermal saturation or repeated surge failure with SMA6J16A-E3/5A in high-ambient environments. |
Compared with SMA6J16CA-E3/5A, the SMA6J16A-E3/5A offers lower capacitance and tighter clamping on DC rails but cannot suppress negative transients; versus SMCJ16A-E3/57T, it saves board space and cost but trades off thermal headroom and surge repetition capability.
Availability
SMA6J16A-E3/5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feeds requiring stable component supply with RoHS-compliant, tape-and-reel packaging (7500 pcs per 13″ reel).
Supply support for SMA6J16A-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 transient suppressors for industrial, automotive, and computing applications.
The SMA6JxxA series targets cost-sensitive, high-volume PCB protection needs where standardized 600 W surge capability, SMA footprint compatibility, and industrial-grade reliability are prioritized over ultra-low capacitance or bidirectional operation.
FAQ
What is the maximum clamping voltage of the SMA6J16A-E3/5A under a 10/1000 μs surge?
The SMA6J16A-E3/5A has a maximum clamping voltage (VC) of 25.2 V when subjected to a 10/1000 μs surge waveform at its rated peak pulse current of 119 A. This value is measured per the test conditions specified in the Vishay datasheet document 89460, with the device mounted on 5.0 mm × 5.0 mm copper pads. The SMA6J16A-E3/5A maintains this clamping performance across its qualified operating temperature range.
Is the SMA6J16A-E3/5A suitable for protecting a 24 V DC power rail?
Yes, the SMA6J16A-E3/5A is suitable for protecting a 24 V DC rail because its 16 V stand-off voltage (VWM) provides adequate margin below the 24 V nominal, while its 25.2 V clamping voltage ensures downstream 30 V-rated MOSFETs retain ≥4.8 V of safe operating margin. The SMA6J16A-E3/5A's unidirectional polarity aligns with DC rail topology, and its 600 W rating meets IEC 61000-4-5 Level 3 requirements for industrial environments.
Does the SMA6J16A-E3/5A have a bidirectional variant?
Yes, the bidirectional variant is the SMA6J16CA-E3/5A, which features symmetrical ±16 V stand-off voltage and identical package and surge ratings. Unlike the SMA6J16A-E3/5A, the SMA6J16CA-E3/5A clamps transients of either polarity, making it appropriate for AC-coupled interfaces like RS-485 or CAN, whereas the SMA6J16A-E3/5A is limited to DC-biased lines with defined polarity.
What is the thermal resistance and power derating behavior of the SMA6J16A-E3/5A?
The SMA6J16A-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. Its power dissipation (PD) is rated at 4.0 W at TA = 50 °C and derates linearly above that temperature per Figure 2 in the Vishay datasheet. At 125 °C ambient, PD drops to approximately 1.0 W, requiring careful thermal design in high-temperature enclosures.
How does the SMA6J16A-E3/5A compare to the SMCJ16A in terms of physical and electrical compatibility?
The SMA6J16A-E3/5A and SMCJ16A share identical electrical specifications (VWM, VBR, VC, PPPM), but differ physically: the SMA6J16A-E3/5A uses the smaller SMA (DO-214AC) package (2.54 mm lead pitch), while the SMCJ16A uses the larger SMC (DO-214AB) package (5.59 mm lead pitch). They are not pin-compatible; PCB redesign is required to substitute one for the other. The SMCJ16A offers superior thermal performance (RθJA = 40 °C/W) and higher surge endurance.
SMA6J16A-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):
- 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-E3/5A FAQ
1.How can I place an order for SMA6J16A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J16A-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 SMA6J16A-E3/5A reliable?
The price and inventory of SMA6J16A-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 SMA6J16A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA6J16A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J16A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J16A-E3/5A?
SMA6J16A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J16A-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 SMA6J16A-E3/5A?
For technical support, including SMA6J16A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J16A-E3/5A requirements.
6.How does Aetrix verify that SMA6J16A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA6J16A-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 SMA6J16A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA6J16A-E3/5A?
All SMA6J16A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J16A-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 SMA6J16A-E3/5A part is unused and in its original packaging.
Return procedure for SMA6J16A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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