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Vishay General Semiconductor - Diodes Division SMA5J17CA-E3/5A
- Part No.:
- SMA5J17CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J17CA-E3/5A.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,947
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Product details
Overview
SMA5J17CA-E3/5A from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 17 V standoff voltage (VWM), 18.9–20.9 V breakdown range (VBR), 500 W peak pulse power (PPPM), clamping voltage of 27.6 V at 18.1 A IPPM, and operates from –55 °C to +150 °C - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J17CA-E3/5A datasheet, SMA5J17CA-E3/5A pinout, SMA5J17CA-E3/5A application, or SMA5J17CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, 500 W surge rating with 10/1000 µs waveform, RoHS-compliant matte tin terminals, MSL Level 1 qualification, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS diode provides symmetrical clamping in both polarities, enabling robust protection against voltage transients induced by inductive load switching or ESD events without polarity sensitivity. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and fast response time under transient conditions.
The device delivers 500 W peak pulse power dissipation per 10/1000 µs waveform while maintaining low incremental surge resistance and thermal resistance (RθJA = 80 °C/W). It meets J-STD-020 MSL Level 1 and supports lead-free reflow up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 18.9 V / 20.9 V - verified breakdown threshold at 1 mA test current, ensuring predictable turn-on |
| VC @ IPPM | 27.6 V at 18.1 A - clamping voltage during 10/1000 µs surge, limiting downstream voltage stress |
| PPPM | 500 W - peak transient energy absorption capacity under standardized surge waveform |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - extended junction temperature rating enables use in under-hood automotive environments |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.28 mm × 4.50 mm footprint |
Pinout & Package
Two-terminal bidirectional device in SMA (DO-214AC) package; no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with MSL Level 1 moisture sensitivity rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Identical electrical behavior in both directions; no functional distinction between terminals |
| Case (cathode band absent) | Mechanical reference only | Bidirectional construction eliminates cathode marking; terminals interchangeable in layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low ID over temperature and lifetime, critical for long-term reliability in harsh environments |
| Low profile SMA package | Enables high-density PCB layouts and compatibility with standard pick-and-place equipment for automated assembly |
| 500 W peak pulse power | Provides robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) when properly mounted |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing without baking, reducing manufacturing complexity |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications requiring validated reliability per stress-test standards |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching sensitive ICs. Use Value: Limits voltage to ≤27.6 V during 18.1 A surge, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to field wiring surges from motor contactors or solenoid coils. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V DC input channels, coordinated with upstream fusing and filtering. Use Value: Absorbs 500 W pulses without degradation, maintaining system uptime in factory automation environments with frequent switching noise. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from lightning-induced surges on unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: Secondary-level protector after gas discharge tube (GDT), providing fast-response clamping for residual transients. Use Value: Fast response time and low VC ensure compliance with ITU-T K.21 basic protection requirements for telecom infrastructure. | Use Scenario: Output-side surge suppression in AC/DC adapters for smart home devices, guarding against mains-borne transients entering USB or DC barrel outputs. IC Role / Device Role / Timing Role: Final-stage TVS across regulated 5 V/12 V output rails to prevent overvoltage damage to connected peripherals. Use Value: RoHS-compliant matte tin terminals support lead-free reflow, and 150 °C TJ rating accommodates compact, thermally constrained adapter designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J17CA-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and package | No functional difference; selected where halogen-free material compliance is mandated | Choose for green manufacturing programs requiring halogen-free bill-of-materials |
| SMC5J17CA-E3/57 | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package with higher RθJA (50 °C/W) and 1500 W PPPM rating | Used where higher surge energy handling or improved thermal dissipation is required | Prefer when board space allows and surge duty exceeds 500 W, e.g., main power rail protection |
Compared with SMA5J17CA-E3/5A, the M3 variant offers identical protection performance with halogen-free construction, while the SMC5J17CA-E3/57 trades smaller footprint for higher power handling and better thermal performance - selection depends on layout constraints and surge severity requirements.
Availability
SMA5J17CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter outputs requiring stable component supply and full traceability.
Supply support for SMA5J17CA-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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial, and telecom systems needing robust, standardized SMT TVS solutions.
FAQ
What is the polarity configuration of SMA5J17CA-E3/5A?
SMA5J17CA-E3/5A is a bidirectional TVS diode with symmetrical terminal behavior - neither end is marked as anode or cathode. This allows it to clamp voltage transients equally in both directions, making it ideal for AC-coupled or polarity-agnostic signal lines such as data buses or transformer-isolated interfaces. The SMA5J17CA-E3/5A does not require orientation during placement.
Does SMA5J17CA-E3/5A meet automotive qualification standards?
The base SMA5J17CA-E3/5A is commercial-grade and RoHS-compliant. However, Vishay offers AEC-Q101 qualified versions under ordering codes SMA5J17CAHE3_A/I and SMA5J17CAHM3_A/I. These variants undergo stress testing per AEC-Q101 and are intended for automotive applications. SMA5J17CA-E3/5A itself is not AEC-Q101 qualified unless explicitly ordered with HE3 or HM3 suffixes.
What is the maximum clamping voltage of SMA5J17CA-E3/5A under surge conditions?
The maximum clamping voltage (VC) of SMA5J17CA-E3/5A is 27.6 V, measured at its peak pulse current (IPPM) of 18.1 A under a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet and defines the upper voltage limit imposed on protected circuitry during a standardized surge event. Designers use this VC to verify that downstream components remain within their absolute maximum ratings.
How is thermal performance characterized for SMA5J17CA-E3/5A?
SMA5J17CA-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Its junction-to-lead resistance (RθJL) is 25 °C/W. These values enable accurate thermal modeling in PCB layouts and confirm suitability for operation up to +150 °C junction temperature, provided board-level copper area and airflow meet minimum recommendations.
What packaging options are available for SMA5J17CA-E3/5A?
SMA5J17CA-E3/5A is supplied in 13" diameter plastic tape and reel format with a base quantity of 7500 units per reel (package code "5A"). It uses RoHS-compliant matte tin plating and meets JESD 201 Class 2 whisker resistance. Alternative packaging includes 7" reels (code "61", 1800 units) and AEC-Q101 variants on 13" reels with suffixes "HE3_A/I" or "HM3_A/I".
SMA5J17CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- Power - Peak Pulse:
- 500W
- 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)
SMA5J17CA-E3/5A FAQ
1.How can I place an order for SMA5J17CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J17CA-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 SMA5J17CA-E3/5A reliable?
The price and inventory of SMA5J17CA-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 SMA5J17CA-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J17CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J17CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J17CA-E3/5A?
SMA5J17CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J17CA-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 SMA5J17CA-E3/5A?
For technical support, including SMA5J17CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J17CA-E3/5A requirements.
6.How does Aetrix verify that SMA5J17CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J17CA-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 SMA5J17CA-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J17CA-E3/5A?
All SMA5J17CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J17CA-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 SMA5J17CA-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J17CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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