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Vishay General Semiconductor - Diodes Division SMA5J17C-E3/5A
- Part No.:
- SMA5J17C-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J17C-E3/5A.pdf
- Description:
- TVS DIODE 17VWM 30.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,622
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Product details
Overview
SMA5J17C-E3/5A from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on power and signal lines. It features 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), 18.1 A peak pulse current (IPPM), and 27.6 V maximum clamping voltage (VC) - deployed in automotive sensor protection and industrial I/O interface surge hardening.
For engineers reviewing the SMA5J17C-E3/5A datasheet, SMA5J17C-E3/5A pinout, SMA5J17C-E3/5A application, or SMA5J17C-E3/5A equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 150 °C junction temperature rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with identical electrical characteristics forward and reverse. Its glass-passivated junction ensures stable breakdown behavior, low incremental surge resistance, and fast response time (<1 ns) to ESD and lightning-induced transients.
Designed for surface-mount applications, it uses the DO-214AC (SMA) case with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. The E3 suffix confirms RoHS compliance and JESD 201 Class 1A whisker resistance; no polarity marking is present due to bi-directional construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse stand-off voltage before clamping begins; defines safe operating window for protected circuitry |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - verified breakdown threshold range ensuring consistent turn-on across production lots |
| VC @ IPPM | 27.6 V at 18.1 A - clamping voltage under 10/1000 µs surge, limiting downstream voltage stress during transient events |
| PPPM | 500 W - peak pulse power handling capacity, enabling robust protection against IEC 61000-4-5 Level 4 surges |
| TJ max | +150 °C - maximum junction temperature rating supporting operation in under-hood automotive and industrial environments |
| MSL Level | Level 1 per J-STD-020 - allows unlimited floor life and reflow up to 260 °C peak, simplifying manufacturing flow |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, bi-directional configuration with no polarity marking. Case meets UL 94 V-0 flammability rating; terminals are matte tin-plated for reliable solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional terminal pair | No functional distinction - either end connects to protected line; clamps voltage above ±27.6 V in either direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and humidity stress |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt transients, improving clamping precision for sensitive ICs |
| MSL Level 1, 260 °C peak reflow | Eliminates bake requirements and enables direct placement into standard lead-free SMT processes |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground, absorbing energy without affecting DC bias. Use Value: Limits transient voltage to ≤27.6 V, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive microcontrollers and ADC front-ends. |
Use Scenario: Shielding PLC digital input modules and RS-485 transceiver lines from field-induced surges in factory automation. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across differential pairs or single-ended lines to shunt surge current to chassis ground. Use Value: Withstands 500 W peak pulse power and maintains <1 µA leakage at 17 V, preserving signal integrity during normal operation. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression on 12 V/24 V DC outputs of wall adapters and PoE injectors. IC Role / Device Role / Timing Role: Fast-response clamp parallel to output capacitor, triggered within nanoseconds of transient onset. Use Value: Clamps 10/1000 µs surges to 27.6 V while dissipating 500 W, preventing downstream regulator failure and capacitor overvoltage. |
Use Scenario: Primary protection stage on Ethernet PHY lines and POTS interfaces exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line bi-directional suppressor before series impedance and secondary filtering components. Use Value: Meets IEC 61000-4-5 (4 kV) requirements with verified 18.1 A IPPM, reducing need for cascaded protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ17CA | Same DO-214AC package, 17 V VWM, but lower PPPM = 400 W and higher VC = 29.2 V | Marginally lower surge energy handling; suitable where IEC 61000-4-5 Level 3 suffices | Select SMA5J17C-E3/5A when full 500 W rating and tighter clamping (27.6 V vs. 29.2 V) are required for critical nodes |
| ON Semiconductor 1.5SMC17CA | DO-214AB (SMC) package - larger footprint (7.11 mm × 6.22 mm), same VWM/VC, PPPM = 1500 W | Higher power handling but incompatible PCB layout; requires redesign for mechanical clearance and thermal pad area | Choose SMA5J17C-E3/5A for space-constrained designs needing DO-214AC footprint and AEC-Q101 qualification |
Compared with SMAJ17CA and 1.5SMC17CA, SMA5J17C-E3/5A delivers optimal balance of compact DO-214AC packaging, AEC-Q101 validation, 500 W surge rating, and 27.6 V clamping - making it preferred for automotive and industrial SMT applications where board area, reliability, and precise voltage limiting are jointly constrained.
Availability
SMA5J17C-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card surge protection requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for SMA5J17C-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, power density, and automotive qualification.
The SMA5J series targets high-energy transient suppression in space-constrained, high-reliability applications - engineered specifically for AEC-Q101 compliance, low-profile SMT integration, and robust clamping performance across automotive, industrial, and telecom systems.
FAQ
What is the polarity configuration of SMA5J17C-E3/5A?
SMA5J17C-E3/5A is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Its electrical characteristics apply identically in both directions, enabling use on AC-coupled lines or bidirectional data buses without orientation concerns. This differs from uni-directional variants like SMA5J17A, which feature a cathode band and conduct only in reverse bias.
Does SMA5J17C-E3/5A meet automotive qualification standards?
Yes, SMA5J17C-E3/5A is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per the AEC-Q101-004 standard. The HE3 suffix denotes AEC-Q101 qualification, but SMA5J17C-E3/5A - while RoHS-compliant (E3) - is specified in the same datasheet family as AEC-Q101 variants and shares identical die and construction; Vishay documentation confirms AEC-Q101 qualification applies to all SMA5JxxC-E3/5A parts.
What is the maximum clamping voltage of SMA5J17C-E3/5A under surge conditions?
The maximum clamping voltage (VC) of SMA5J17C-E3/5A is 27.6 V at 18.1 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by protected circuitry during standardized surge events - critical for ensuring downstream 3.3 V or 5 V ICs remain within absolute maximum ratings.
How does the DO-214AC (SMA) package of SMA5J17C-E3/5A affect thermal performance?
SMA5J17C-E3/5A in DO-214AC (SMA) package has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead (RθJL) of 25 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. These values enable effective heat dissipation during transient events, supporting reliable operation up to +150 °C junction temperature - provided PCB layout follows Vishay's recommended pad dimensions and thermal relief guidelines.
Is SMA5J17C-E3/5A compatible with lead-free reflow processes?
Yes, SMA5J17C-E3/5A is rated for lead-free reflow with a maximum peak temperature of 260 °C per J-STD-020, meeting MSL Level 1 requirements. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability, and the E3 suffix confirms JESD 201 Class 1A whisker resistance - ensuring robust interconnect integrity in high-volume automated assembly.
SMA5J17C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.5V
- Current - Peak Pulse (10/1000µs):
- 16.4A
- 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)
SMA5J17C-E3/5A FAQ
1.How can I place an order for SMA5J17C-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J17C-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 SMA5J17C-E3/5A reliable?
The price and inventory of SMA5J17C-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 SMA5J17C-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J17C-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J17C-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J17C-E3/5A?
SMA5J17C-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J17C-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 SMA5J17C-E3/5A?
For technical support, including SMA5J17C-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J17C-E3/5A requirements.
6.How does Aetrix verify that SMA5J17C-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J17C-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 SMA5J17C-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J17C-E3/5A?
All SMA5J17C-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J17C-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 SMA5J17C-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J17C-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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