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Vishay General Semiconductor - Diodes Division SMA5J17A-E3/5A
- Part No.:
- SMA5J17A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J17A-E3/5A.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,944
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Product details
Overview
SMA5J17A-E3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR), 27.6 V clamping voltage (VC) at 18.1 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the SMA5J17A-E3/5A datasheet, SMA5J17A-E3/5A pinout, SMA5J17A-E3/5A application, or SMA5J17A-E3/5A equivalent, key selection criteria include verified clamping performance under 10/1000 μs transients, unidirectional polarity marking, RoHS-compliant matte tin-plated leads, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (18.9–20.9 V), it avalanches to limit transient energy, clamping to ≤27.6 V at 18.1 A. Its glass-passivated junction ensures stable leakage (<1.0 μA at 17 V) and fast response time (<1 ns).
Rated for -55 °C to +150 °C junction temperature, it delivers 500 W peak pulse power per 10/1000 μs waveform, with thermal resistance RθJA = 80 °C/W and RθJL = 25 °C/W - enabling reliable operation on standard PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 18.9 V / 20.9 V at 1.0 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 27.6 V at 18.1 A - clamped voltage during full-rated 500 W surge; limits downstream IC stress below 30 V threshold. |
| PPPM | 500 W - peak pulse power handling with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity. |
| IFSM | 40 A - non-repetitive forward surge current (8.3 ms half-sine); accommodates inrush or fault currents in DC power paths. |
| Junction Temp | -55 °C to +150 °C - wide thermal operating range suitable for under-hood automotive and industrial environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return plane; completes clamping loop during transient events. |
| Cathode | Reverse-biased input / protected line connection | Connected to the line being protected (e.g., 12 V rail); avalanche conduction occurs here during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Low incremental surge resistance | Enables tighter clamping (27.6 V) under high-current transients, reducing voltage overshoot on protected nodes. |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage current across temperature and humidity stress conditions. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning; supports high-yield automated assembly. |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications; this E3/5A variant is commercial-grade but built on same qualified process. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground. Use Value: Clamps transients to ≤27.6 V within nanoseconds, preventing damage to MCU power inputs and CAN transceivers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Point-of-entry protection on 4–20 mA or 0–10 V output lines exposed to ESD and inductive switching noise. Use Value: Sub-1 ns response and <1.0 μA leakage at 17 V preserve signal integrity while blocking >500 W surges. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side surge suppression in wall adapters powering USB-C PD devices. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–20 V output rails upstream of DC-DC converters. Use Value: 17 V VWM provides margin above 15 V max output; 500 W rating handles repeated lightning-induced surges. |
Use Scenario: Overvoltage protection on -48 V telecom power distribution boards. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground on negative supply rail. Use Value: Robust 150 °C TJ max and 80 °C/W RθJA support continuous operation in enclosed telecom cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J17A-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and thermal performance. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU public infrastructure projects). | Choose M3/5A when halogen-free certification is required; otherwise E3/5A offers standard commercial compliance. |
| SMA6J17A-E3/5A | 600 W peak pulse power (vs. 500 W), same VWM/VBR/VC, larger thermal mass; same SMA package footprint. | Higher surge margin for IEC 61000-4-5 Level 5 (6 kV) or repetitive surge environments; requires same PCB layout. | Select SMA6J17A-E3/5A when system-level surge testing exceeds 500 W requirements; no layout change needed. |
Compared with SMA5J17A-E3/5A, the M3/5A offers identical protection performance with halogen-free materials, while the SMA6J17A-E3/5A increases surge robustness to 600 W without altering board space - enabling direct upgrade paths based on compliance or test severity needs.
Availability
SMA5J17A-E3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feed protection requiring stable component supply and full traceability.
Supply support for SMA5J17A-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 high-power density.
The SMA5J series is engineered for high-energy transient suppression in space-constrained SMT applications, targeting automotive, industrial, and telecom systems where robust 500 W surge handling and AEC-Q101 readiness are critical.
FAQ
What is the clamping voltage of the SMA5J17A-E3/5A under full-rated surge current?
The SMA5J17A-E3/5A clamps to a maximum of 27.6 V when subjected to its rated peak pulse current of 18.1 A (10/1000 μs waveform). This value is measured per standard test conditions defined in ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024. The SMA5J17A-E3/5A maintains this clamping performance across its specified operating temperature range.
Is the SMA5J17A-E3/5A suitable for automotive applications?
The SMA5J17A-E3/5A is RoHS-compliant and built on Vishay's AEC-Q101-qualified process, though this specific E3/5A variant is commercial-grade. For certified automotive use, the HE3 or HM3 suffix versions (e.g., SMA5J17AHE3_A/I) are designated AEC-Q101 qualified. The SMA5J17A-E3/5A remains widely used in automotive subsystems where qualification is not mandated but robust surge performance is required.
What does the "E3/5A" suffix mean in SMA5J17A-E3/5A?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "5A" specifies packaging in 13-inch diameter plastic tape and reel, with a base quantity of 7500 units. This differs from "E3/61", which uses 7-inch reels (1800 units). Both share identical electrical and thermal specifications - only packaging and compliance grading differ.
How does the SMA5J17A-E3/5A compare to SMAJ17A in terms of surge capability?
The SMA5J17A-E3/5A delivers 500 W peak pulse power (10/1000 μs), whereas the SMAJ17A is rated for 400 W. Both share the same SMA (DO-214AC) package, VWM (17 V), and VC (27.6 V), but the SMA5J series achieves higher power handling via optimized chip design and thermal path. The SMA5J17A-E3/5A is preferred where higher surge margin is required without changing footprint.
What is the maximum leakage current of the SMA5J17A-E3/5A at its stand-off voltage?
The SMA5J17A-E3/5A exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 17 V stand-off voltage (VWM), measured at TA = 25 °C. This low leakage ensures minimal power loss in always-on circuits and preserves accuracy in high-impedance sensor bias networks. The SMA5J17A-E3/5A maintains this specification across its full operating temperature range per datasheet characterization.
SMA5J17A-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):
- 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)
SMA5J17A-E3/5A FAQ
1.How can I place an order for SMA5J17A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J17A-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 SMA5J17A-E3/5A reliable?
The price and inventory of SMA5J17A-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 SMA5J17A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J17A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J17A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J17A-E3/5A?
SMA5J17A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J17A-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 SMA5J17A-E3/5A?
For technical support, including SMA5J17A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J17A-E3/5A requirements.
6.How does Aetrix verify that SMA5J17A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J17A-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 SMA5J17A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J17A-E3/5A?
All SMA5J17A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J17A-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 SMA5J17A-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J17A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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