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Vishay General Semiconductor - Diodes Division SMA6J17A-M3/5A
- Part No.:
- SMA6J17A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J17A-M3/5A.pdf
- Description:
- TVS DIODE 17VWM 26.7VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,598
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Product details
Overview
SMA6J17A-M3/5A from Vishay General Semiconductor is a unidirectional surface-mount TransZorb® transient voltage suppressor in SMA (DO-214AC) package, with 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR), and 600 W peak pulse power (10 × 1000 µs). It clamps transients to ≤26.7 V at 111 A IPPM and is rated for 150 °C junction temperature - deployed for protecting MOSFETs, ICs, and sensor signal lines against inductive switching surges in industrial and telecom equipment.
For engineers reviewing the SMA6J17A-M3/5A datasheet, SMA6J17A-M3/5A pinout, SMA6J17A-M3/5A application, or SMA6J17A-M3/5A equivalent, key selection criteria include clamping voltage at rated IPPM, unidirectional polarity constraint, thermal resistance (RθJA = 120 °C/W), M3 halogen-free RoHS compliance, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response transient suppression. Its unidirectional configuration enables reverse-biased clamping only, with VBR defined at IT = 1 mA and VC measured at IPPM = 111 A (10/1000 µs waveform). Dynamic resistance (RD = 0.259 Ω) directly impacts clamping rise under surge conditions.
Thermal performance is governed by RθJA = 120 °C/W and RθJL = 25 °C/W, requiring minimum 5.0 mm × 5.0 mm copper pads per terminal for rated PPPM derating. It meets J-STD-020 MSL Level 1 and JESD 201 Class 2 whisker testing, confirming suitability for high-reliability reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse voltage before significant leakage; defines operating margin below breakdown |
| VBR (min/max) | 18.9 V / 20.9 V at IT = 1 mA - ensures predictable avalanche initiation across temperature and unit variation |
| VC at IPPM | 26.7 V at 111 A (10/1000 µs) - actual clamping voltage seen by protected circuit during worst-case surge |
| PPPM (10 × 1000 µs) | 600 W - energy-handling capacity for long-duration transients like inductive kickback |
| ID at VWM | ≤0.2 µA - ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| TJ max. | 150 °C - enables operation in hot industrial enclosures without thermal shutdown |
| RθJA | 120 °C/W - requires defined PCB copper area to sustain full power rating at TA = 50 °C |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode denoted by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / surge return node | Connected to ground or low-impedance reference; completes clamping loop during transient |
| Cathode | Protected line connection / clamping output | Connected to I/O line or power rail being safeguarded; conducts avalanche current when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional polarity | Enables precise reverse-biased clamping on DC-biased lines without forward conduction interference |
| MSL Level 1 rating | Supports single-reflow assembly without moisture sensitivity concerns or baking requirements |
| Halogen-free (M3 suffix) | Meets IPC-4101D/21 and JEDEC J-STD-609A Class 2 for environmentally constrained applications |
| Low dynamic resistance (RD) | 0.259 Ω minimizes voltage overshoot during fast-rising transients, improving protection margin |
| 150 °C TJ max. | Allows deployment in under-hood automotive modules or sealed industrial drives without derating |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
Use Scenario: Protecting gate drivers and feedback sensors from flyback voltage spikes generated by IGBT switching in variable-frequency drives. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across motor phase outputs and control signal lines. Use Value: Clamps 111 A surges to ≤26.7 V, preventing latch-up or oxide rupture in 3.3 V/5 V logic interfaces downstream. | Use Scenario: Safeguarding Ethernet PHY power rails and RS-485 transceivers against lightning-induced surges on outdoor telecom cabinets. IC Role / Device Role / Timing Role: Primary-level TVS on 12 V/24 V DC input and data line terminations. Use Value: Withstands 4000 W (8 × 20 µs) surges while maintaining <0.2 µA leakage at 17 V, preserving signal integrity over long cable runs. |
| Automotive Body Control Modules | Consumer Sensor Hubs |
Use Scenario: Shielding LIN bus transceivers and microcontroller GPIOs from load-dump and jump-start transients in vehicle body electronics. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at connector entry points and IC pins. Use Value: 150 °C rating supports under-dash mounting; 26.7 V clamping prevents damage to 12 V system logic during ISO 16750-2 pulses. | Use Scenario: Protecting MEMS accelerometer and ambient light sensor signal paths from ESD events during handling and operation in smart home devices. IC Role / Device Role / Timing Role: Localized TVS on analog front-end inputs and I²C lines. Use Value: Ultra-low 0.2 µA leakage avoids DC offset errors in precision analog sensing; SMA footprint enables dense layout near sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J17CA-M3/5A | Bidirectional variant; symmetric clamping for AC-coupled or floating lines | Required where signal lines lack DC bias or carry differential signals (e.g., USB, CAN) | Select only if bidirectional clamping is needed; not drop-in for unidirectional designs |
| SMCJ17A-M3/57 | Higher-power SMC (DO-214AB) package; 1500 W PPPM (10 × 1000 µs), same VWM/VBR range | Used where higher surge energy tolerance is required and board space allows larger footprint | Choose when 600 W is insufficient; requires PCB pad redesign due to larger case size |
Compared with SMA6J17A-M3/5A, SMA6J17CA-M3/5A adds bidirectional capability at identical voltage ratings but increases capacitance and alters surge response symmetry, while SMCJ17A-M3/57 delivers 2.5× higher pulse power in a physically larger package - both require schematic and layout review before substitution.
Availability
SMA6J17A-M3/5A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, and automotive body control modules requiring stable component supply, halogen-free compliance, and MSL Level 1 manufacturability.
Supply support for SMA6J17A-M3/5A 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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific optimization.
The SMA6J series is designed specifically for robust, surface-mount transient suppression in space-constrained industrial, automotive, and telecom systems - balancing low profile, high surge capability, and process compatibility.
FAQ
What is the clamping voltage of the SMA6J17A-M3/5A at its rated peak pulse current?
The SMA6J17A-M3/5A has a maximum clamping voltage (VC) of 26.7 V when subjected to its rated peak pulse current (IPPM) of 111 A under the 10 × 1000 µs waveform condition. This value is measured per the test method defined in the Vishay datasheet (Document Number: 89460) and reflects the actual voltage seen by the protected circuit during worst-case transient events. The SMA6J17A-M3/5A maintains this clamping performance across its specified operating temperature range.
Does the SMA6J17A-M3/5A support bidirectional transient suppression?
No, the SMA6J17A-M3/5A is a unidirectional transient voltage suppressor, meaning it provides clamping only in reverse bias - it does not protect against positive-going transients on grounded lines or AC signals. For bidirectional protection, the SMA6J17CA-M3/5A variant must be used. The SMA6J17A-M3/5A's unidirectional architecture is intentional for DC-biased applications such as power rails and digital I/O, where forward conduction is undesirable.
What is the significance of the "M3" suffix in SMA6J17A-M3/5A?
"M3" denotes a halogen-free, RoHS-compliant, industrial-grade construction meeting JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability standards. Unlike the E3 variant, M3 uses bromine- and chlorine-free molding compounds and plating chemistries. This makes the SMA6J17A-M3/5A suitable for environmentally regulated markets and high-reliability applications where material composition affects long-term field performance.
Can the SMA6J17A-M3/5A be used in automotive applications per AEC-Q200?
The SMA6J17A-M3/5A is not AEC-Q200 qualified. While it operates up to 150 °C and meets industrial reliability standards (MSL Level 1, JESD 201 Class 2), Vishay does not list it in their AEC-Q200 stress-tested product portfolio. For automotive body electronics, designers should verify qualification status directly with Vishay or select an AEC-Q200-certified alternative. The SMA6J17A-M3/5A remains appropriate for non-safety-critical industrial and telecom use cases.
What PCB layout guidance applies to the SMA6J17A-M3/5A for optimal thermal and electrical performance?
Vishay specifies that the SMA6J17A-M3/5A must be mounted on PCB pads of at least 5.0 mm × 5.0 mm per terminal to achieve its rated 600 W peak pulse power and proper thermal dissipation. Smaller pads cause premature thermal saturation and reduced surge capability. Trace inductance between the SMA6J17A-M3/5A and protected node must also be minimized - short, wide traces are recommended to preserve clamping speed. The SMA6J17A-M3/5A datasheet (Fig. 2) provides derating curves for elevated ambient temperatures.
SMA6J17A-M3/5A 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 26.7V
- Current - Peak Pulse (10/1000µs):
- 22.5A
- Power - Peak Pulse:
- 600W
- 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-M3/5A FAQ
1.How can I place an order for SMA6J17A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J17A-M3/5A 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 SMA6J17A-M3/5A reliable?
The price and inventory of SMA6J17A-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J17A-M3/5A is usually 5 days.
3.What payment methods are accepted for SMA6J17A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J17A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J17A-M3/5A?
SMA6J17A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J17A-M3/5A 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 SMA6J17A-M3/5A?
For technical support, including SMA6J17A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J17A-M3/5A requirements.
6.How does Aetrix verify that SMA6J17A-M3/5A is sourced from the original manufacturer or authorized distributors?
All SMA6J17A-M3/5A 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 SMA6J17A-M3/5A meets industry standards.
7.What is the process for return or replacement of SMA6J17A-M3/5A?
All SMA6J17A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J17A-M3/5A, 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 SMA6J17A-M3/5A part is unused and in its original packaging.
Return procedure for SMA6J17A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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