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Vishay General Semiconductor - Diodes Division SMA5J17AHE3/61
- Part No.:
- SMA5J17AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J17AHE3/61.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,569
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Product details
Overview
SMA5J17AHE3/61 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 at 18.1 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SMA5J17AHE3/61 datasheet, SMA5J17AHE3/61 pinout, SMA5J17AHE3/61 application, or SMA5J17AHE3/61 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with a cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of inductive switching spikes and ESD events up to 500 W without degradation under repeated surges.
The device is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and is qualified to AEC-Q101 - confirming suitability for automotive electronics where reliability under thermal cycling and mechanical stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 18.9 V / 20.9 V - guaranteed avalanche breakdown range at 1 mA test current |
| VC @ IPPM | 27.6 V at 18.1 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 500 W - peak pulse power handling capability under standardized transient waveform |
| RθJA | 80 °C/W - thermal resistance from junction to ambient, defining derating above 25 °C |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine, unidirectional only) |
| TJ max. | +150 °C - maximum junction temperature, supporting operation in engine bay or industrial enclosures |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional clamp configuration; carries surge current during reverse-biased clamping |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line; initiates conduction when reverse voltage exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and electrical stress |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns (peak 260 °C) |
| Low Rsurge | Minimizes voltage overshoot during fast-rising transients, improving protection margin for sensitive ICs |
| UL 94 V-0 molding compound | Provides flame-retardant housing required for safety-critical industrial and automotive applications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground. Use Value: Clamps 12 V system surges to ≤27.6 V, preventing damage to microcontrollers and CAN transceivers rated for 30 V absolute max. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on signal path to ADC input. Use Value: Limits induced voltage to <28 V during 8 kV contact ESD (IEC 61000-4-2), preserving signal integrity without loading the sensor output. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters supplying USB-C PD or PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-clamp TVS on regulated 5–20 V output rails. Use Value: Absorbs 500 W surges from upstream switching noise or capacitor discharge, maintaining output regulation within ±5 % tolerance. | Use Scenario: Surge protection on -48 V DC telecom power distribution boards feeding remote radio units. IC Role / Device Role / Timing Role: Reverse-polarity-compatible unidirectional clamp referenced to system ground. Use Value: Withstands repetitive 10/1000 µs transients up to 18.1 A while maintaining VWM ≥17 V, ensuring uninterrupted base station uptime. |
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-E3/61 | Commercial-grade version; lacks AEC-Q101 qualification and automotive traceability | Approved for consumer/industrial use only; not permitted in automotive OEM BOMs | Select SMA5J17AHE3/61 when automotive qualification, extended temperature validation, or production traceability is required |
| SMC5J17AHE3/61 | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 40 °C/W vs. 80 °C/W | Better thermal performance allows higher sustained surge duty cycles; requires larger PCB footprint | Choose SMA5J17AHE3/61 for space-constrained layouts where 500 W peak rating suffices; choose SMC5J17AHE3/61 for thermally demanding continuous surge environments |
Compared with SMA5J17A-E3/61, the SMA5J17AHE3/61 adds AEC-Q101 qualification and enhanced process controls for automotive use; compared with SMC5J17AHE3/61, it trades thermal efficiency for compactness - making it optimal for dense automotive modules where board area is constrained but single-event surge protection is sufficient.
Availability
SMA5J17AHE3/61 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feed applications requiring stable component supply with full AEC-Q101 compliance and traceable sourcing.
Supply support for SMA5J17AHE3/61 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, power density, and application-specific qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained automotive and industrial environments, delivering 500 W surge capability in the ultra-compact SMA package while meeting stringent AEC-Q101 requirements.
FAQ
What is the clamping voltage of the SMA5J17AHE3/61 under a 10/1000 µs surge?
The SMA5J17AHE3/61 clamps to a maximum of 27.6 V when subjected to its rated peak pulse current of 18.1 A under the standard 10/1000 µs waveform. This value is measured at the device terminals with specified mounting conditions (0.2" × 0.2" copper pads), and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the SMA5J17AHE3/61 qualified for automotive applications?
Yes, the SMA5J17AHE3/61 is AEC-Q101 qualified - confirmed by Vishay's documentation and ordering code suffix "HE3", which denotes RoHS-compliant and AEC-Q101-qualified variants. This qualification covers stress tests including temperature cycling, high-temperature operating life, and ESD robustness required for under-hood and chassis-mounted automotive electronics.
What does the "HE3" suffix mean in SMA5J17AHE3/61?
The "HE3" suffix in SMA5J17AHE3/61 indicates that the device is RoHS-compliant and AEC-Q101 qualified, distinguishing it from commercial-grade versions like SMA5J17A-E3/61. The "H" denotes AEC-Q101 qualification, "E3" confirms RoHS compliance and tape-and-reel packaging per JEDEC standard, and "/61" specifies 7-inch reel with 1800-unit quantity.
Can the SMA5J17AHE3/61 be used in bidirectional configurations?
No, the SMA5J17AHE3/61 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., SMA5J17CA); using SMA5J17AHE3/61 in reverse-biased signal paths without proper polarity alignment will result in forward conduction and potential failure.
What is the thermal resistance of the SMA5J17AHE3/61, and how does it affect layout?
The SMA5J17AHE3/61 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. To maintain safe junction temperatures under repeated surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks - reducing pad size or omitting thermal vias increases RθJA and risks exceeding the +150 °C TJ max.
SMA5J17AHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J17AHE3/61 FAQ
1.How can I place an order for SMA5J17AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J17AHE3/61 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 SMA5J17AHE3/61 reliable?
The price and inventory of SMA5J17AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J17AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J17AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J17AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J17AHE3/61?
SMA5J17AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J17AHE3/61 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 SMA5J17AHE3/61?
For technical support, including SMA5J17AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J17AHE3/61 requirements.
6.How does Aetrix verify that SMA5J17AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J17AHE3/61 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 SMA5J17AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J17AHE3/61?
All SMA5J17AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J17AHE3/61, 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 SMA5J17AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J17AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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