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Vishay General Semiconductor - Diodes Division SMA6J17A-E3/61
- Part No.:
- SMA6J17A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J17A-E3/61.pdf
- Description:
- TVS DIODE 17VWM 31.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,445
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Product details
Overview
SMA6J17A-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 a 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR at IT = 1 mA), 26.7 V maximum clamping voltage at 111 A (10/1000 μs), 600 W peak pulse power rating, and operates from –55 °C to +150 °C junction temperature - used to protect MOSFETs, ICs, and sensor signal lines in industrial power supplies.
For engineers reviewing the SMA6J17A-E3/61 datasheet, SMA6J17A-E3/61 pinout, SMA6J17A-E3/61 application, or SMA6J17A-E3/61 equivalent, key selection criteria include clamping voltage at rated IPP, unidirectional polarity compatibility, SMA package thermal performance, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered above its reverse breakdown threshold. Its dynamic resistance (RD = 0.259 Ω) and low clamping ratio (VC/VBR ≈ 1.41) enable fast suppression of 10/1000 μs transients up to 111 A while limiting voltage overshoot across protected circuit nodes.
Designed for PCB mounting on 5.0 mm × 5.0 mm copper pads per terminal, it achieves 120 °C/W junction-to-ambient thermal resistance and supports automated placement per MSL level 1 (260 °C peak reflow). The cathode band denotes polarity; no forward conduction is intended in normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before leakage exceeds 0.2 μA; sets upper limit for safe DC bias on protected line. |
| VBR min/max | 18.9 V / 20.9 V at 1 mA - Confirmed breakdown range ensures reliable triggering within 11% tolerance under standard test conditions. |
| VC at IPP | 26.7 V at 111 A (10/1000 μs) - Clamping voltage seen by downstream circuit during worst-case surge; defines protection margin for 24 V systems. |
| PPPM (10×1000 μs) | 600 W - Peak transient energy absorption capability; determines survivability against common lightning-induced surges per IEC 61000-4-5. |
| IFSM | 50 A - Non-repetitive forward surge current rating; validates robustness during accidental reverse-bias misapplication or fault events. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient industrial environments without derating below 50 °C ambient. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional polarity, matte tin-plated leads, RoHS-compliant (E3 suffix), UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to lower-potential side (e.g., GND or return path); conducts surge current into ground when VC exceeds VWM. |
| Cathode | Current exit point during clamping | Marked by color band; connected to protected line (e.g., 24 V rail or sensor output); defines polarity-sensitive clamping direction. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | VC/VBR ratio of 1.41 ensures minimal overvoltage stress on downstream 24 V-rated ICs during 111 A transients. |
| Thermal reliability | RθJA = 120 °C/W with recommended pad layout allows sustained 4 W dissipation at TA = 50 °C without heatsink. |
| Automated assembly support | MSL level 1 rating and 260 °C peak reflow compatibility guarantee zero moisture-related popcorning during SMT production. |
| Robust surge handling | 4000 W peak pulse power (8/20 μs) supports immunity testing per IEC 61000-4-5 Level 4 (4 kV line-to-ground). |
Applications
| Industrial Power Supply Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: 24 V DC input stage of PLC I/O module exposed to relay coil flyback and load dump events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 24 V rail and chassis ground to clamp transients before they reach DC-DC converter input. Use Value: Limits voltage excursion to ≤26.7 V during 111 A surges, preventing damage to upstream rectifier and downstream buck controller. |
Use Scenario: CAN or LIN bus signal line in engine control unit subject to ESD and coupled noise from ignition systems. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to shunt fast transients before reaching transceiver IC. Use Value: Sub-100 ns response time and 26.7 V clamping protect 3.3 V/5 V transceivers without adding capacitance-induced signal distortion. |
| Consumer Appliance Motor Drive Protection | Telecom Equipment AC/DC Front-End Protection |
Use Scenario: H-bridge gate driver supply rail in washing machine motor inverter subjected to back-EMF spikes during commutation. IC Role / Device Role / Timing Role: TVS placed across VDD and GND pins of half-bridge driver IC to suppress inductive kickback. Use Value: 600 W 10/1000 μs rating absorbs repetitive 50–100 A spikes without degradation, extending driver IC lifetime. |
Use Scenario: Secondary-side 48 V output rail of telecom rectifier module exposed to lightning-induced surges on Ethernet or PoE lines. IC Role / Device Role / Timing Role: TVS installed at output connector to clamp common-mode surges before entering DC distribution network. Use Value: 4000 W 8/20 μs rating meets GR-1089-CORE Level 3 surge immunity, ensuring uninterrupted service during outdoor installation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J17CA-E3/61 | Bidirectional variant; symmetric clamping (±26.7 V); higher capacitance due to dual-junction structure. | Required where both positive and negative transients occur (e.g., AC-coupled data lines), not suitable for DC-biased rails. | Select only if bidirectional protection is mandated; SMA6J17A-E3/61 offers lower capacitance and tighter VBR tolerance for unidirectional DC rails. |
| SMCJ17A-E3/57T | Larger SMC (DO-214AB) package; 1500 W PPPM (10×1000 μs); RθJA = 35 °C/W; same VWM/VBR/VC specs. | Used where higher surge energy handling or improved thermal dissipation is required, e.g., mains-connected equipment. | Choose SMA6J17A-E3/61 for space-constrained designs needing 600 W protection; SMCJ17A-E3/57T for higher-power front-end stages. |
Compared with SMA6J17CA-E3/61 and SMCJ17A-E3/57T, the SMA6J17A-E3/61 provides optimal balance of compact SMA footprint, 600 W surge capability, and precise unidirectional clamping for 24 V DC systems - making it preferred for board-edge protection where layout area and polarity specificity are critical.
Availability
SMA6J17A-E3/61 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive sensor interface hardening, and telecom DC rail surge suppression requiring stable component supply and full traceability.
Supply support for SMA6J17A-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 ruggedized performance.
The SMA6J series is part of Vishay's Transient Voltage Suppressor portfolio, engineered specifically for high-energy, surface-mount surge protection in industrial, automotive, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the SMA6J17A-E3/61 under a 10/1000 μs surge?
The SMA6J17A-E3/61 has a maximum clamping voltage (VC) of 26.7 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 111 A. This value is measured per JEDEC standards and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 89460. The SMA6J17A-E3/61 maintains this clamping performance across its specified operating temperature range.
Is the SMA6J17A-E3/61 suitable for protecting 24 V DC systems?
Yes, the SMA6J17A-E3/61 is specifically suited for 24 V DC system protection: its 17 V stand-off voltage (VWM) provides adequate margin above nominal 24 V rail ripple, while its 26.7 V clamping voltage ensures downstream components rated for ≥30 V remain within safe operating limits during surge events. The SMA6J17A-E3/61 is widely deployed in PLC power inputs and motor drive supplies for this purpose.
Does the SMA6J17A-E3/61 have RoHS and lead-free compliance?
Yes, the "E3" suffix in SMA6J17A-E3/61 indicates full RoHS compliance and lead-free construction per EU Directive 2011/65/EU. The device uses matte tin-plated leads, meets JESD 201 Class 2 whisker resistance, and carries Vishay's industrial-grade qualification. Compliance documentation is available in Vishay's material declaration portal under document number 99912.
What is the thermal resistance of the SMA6J17A-E3/61 in standard PCB mounting?
The SMA6J17A-E3/61 exhibits a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on a PCB using the minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. This value is validated per JEDEC JESD51-7 and applies at TA = 25 °C; derating is required above that ambient temperature per Figure 2 in the datasheet. The SMA6J17A-E3/61 remains functional up to TJ = +150 °C.
Can the SMA6J17A-E3/61 be used in place of a bidirectional TVS like SMA6J17CA-E3/61?
No - the SMA6J17A-E3/61 is unidirectional only and must not replace bidirectional variants such as SMA6J17CA-E3/61 in AC-coupled or floating signal paths. Using SMA6J17A-E3/61 where bidirectional clamping is required risks failure during negative transients. The SMA6J17A-E3/61 is strictly intended for DC-biased lines where transients occur only in one polarity relative to ground.
SMA6J17A-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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 31.4V
- Current - Peak Pulse (10/1000µs):
- 111A (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)
SMA6J17A-E3/61 FAQ
1.How can I place an order for SMA6J17A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J17A-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 SMA6J17A-E3/61 reliable?
The price and inventory of SMA6J17A-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 SMA6J17A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J17A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J17A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J17A-E3/61?
SMA6J17A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J17A-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 SMA6J17A-E3/61?
For technical support, including SMA6J17A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J17A-E3/61 requirements.
6.How does Aetrix verify that SMA6J17A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J17A-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 SMA6J17A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J17A-E3/61?
All SMA6J17A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J17A-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 SMA6J17A-E3/61 part is unused and in its original packaging.
Return procedure for SMA6J17A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J17A-E3/61 Tags
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