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Vishay General Semiconductor - Diodes Division SMA5J10AHE3/5A
- Part No.:
- SMA5J10AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J10AHE3/5A.pdf
- Description:
- TVS DIODE 10VWM 17VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,359
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Product details
Overview
SMA5J10AHE3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR at 1 mA), 17.0 V clamping voltage (VC) at 29.4 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform. It is AEC-Q101 qualified and RoHS-compliant, used in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMA5J10AHE3/5A datasheet, SMA5J10AHE3/5A pinout, SMA5J10AHE3/5A application, or SMA5J10AHE3/5A equivalent, this page delivers verified electrical parameters, thermal resistance (RθJA = 80 °C/W), polarity marking (cathode band), junction temperature range (–55 to +150 °C), and AEC-Q101 qualification status - all critical for ESD/surge protection design validation and automotive-grade BOM selection.
Technical Context
The SMA5J10AHE3/5A operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (11.1–12.3 V). Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), enabling effective suppression of EFT and lightning-induced transients per IEC 61000-4-2/4-4/4-5.
Thermally, it uses a low-profile SMA package with RθJL = 25 °C/W and RθJA = 80 °C/W (on 5.0 mm × 5.0 mm copper pads), supporting reliable operation up to TJ = 150 °C. The HE3 suffix confirms AEC-Q101 qualification and RoHS compliance, with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V systems. |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed breakdown window ensures predictable turn-on without premature conduction. |
| VC @ IPPM | 17.0 V at 29.4 A - Clamping voltage under 500 W 10/1000 µs surge; limits protected IC stress below 18 V. |
| IPPM | 29.4 A - Peak surge current capability with defined waveform; validates immunity to IEC 61000-4-5 Level 4 (4 kV line-to-ground). |
| TJ Range | –55 °C to +150 °C - Full automotive ambient and junction temperature support without derating loss. |
| RθJA | 80 °C/W - Thermal resistance enables ~6.25 W steady-state dissipation on standard PCB layout; critical for thermal margin analysis. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with cathode band marking. Matte tin-plated leads, MSL Level 1 (260 °C peak reflow), UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-banded end is opposite) | Connected to ground or low-impedance return path; defines unidirectional current flow direction during surge. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line (e.g., 12 V rail); avalanche conduction occurs when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics use including engine control, body modules, and ADAS sensors - no additional qualification testing required. |
| Glass-passivated junction | Ensures stable VBR tolerance and <1.0 µA leakage at VWM, critical for low-power always-on circuits. |
| 500 W peak pulse power (10/1000 µs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges in 12 V systems. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping precision for sensitive 3.3 V/5 V logic interfaces. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and inductive switching transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges above 12 V. Use Value: Limits rail voltage to ≤17.0 V during 29.4 A transients, preventing damage to downstream PMICs and microcontrollers rated for 16 V max. | Use Scenario: Safeguarding analog input pins of industrial temperature/pressure sensors connected to long cables in factory automation. IC Role / Device Role / Timing Role: Standoff-clamp TVS on sensor signal line (e.g., 4–20 mA loop or 0–10 V output) referenced to local ground. Use Value: Suppresses EFT bursts (IEC 61000-4-4) and induced lightning surges while maintaining <1.0 µA leakage at 10 V, preserving measurement accuracy. |
| Consumer USB Power Port Protection | Telecom Base Station DC Feeder Protection |
Use Scenario: Secondary overvoltage protection on 5 V USB Type-C VBUS lines after primary DC-DC regulation. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp between VBUS and GND, activated only during overvoltage events. Use Value: Clamps 10/1000 µs surges to 17.0 V within <1 ns, protecting USB PD controllers and port switches without affecting normal 5 V operation. | Use Scenario: Front-end surge protection on –48 V DC feeder lines entering telecom base station cabinets exposed to outdoor lightning coupling. IC Role / Device Role / Timing Role: High-power unidirectional TVS mounted at cabinet entry point, shunting surge energy to earth ground. Use Value: Handles 500 W pulses with 17.0 V clamping, limiting voltage rise across upstream DC-DC converters and ensuring uninterrupted operation during 4 kV IEC 61000-4-5 tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J10A-E3/5A | Same electrical specs, but commercial-grade (non-AEC-Q101); no automotive qualification. | Approved for industrial/commercial designs only; not suitable for automotive production BOMs. | Select SMA5J10AHE3/5A when AEC-Q101 compliance is mandatory; choose SMA5J10A-E3/5A for cost-sensitive non-automotive use. |
| SMA6J10AHE3/5A | 600 W peak pulse power (vs. 500 W), same VWM/VBR/VC; identical SMA package and AEC-Q101 qualification. | Higher surge margin for harsher environments (e.g., heavy-duty vehicle alternator load dump). | Choose SMA6J10AHE3/5A if system-level surge testing exceeds 500 W requirements; otherwise SMA5J10AHE3/5A provides optimal cost/performance balance. |
Compared with SMA5J10A-E3/5A, the SMA5J10AHE3/5A adds AEC-Q101 qualification for automotive use without changing electrical performance; versus SMA6J10AHE3/5A, it trades 100 W lower peak power for tighter cost and footprint control where 500 W suffices.
Availability
SMA5J10AHE3/5A is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feeders requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J10AHE3/5A 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 TVS devices with emphasis on reliability, power density, and automotive qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly automotive power distribution, industrial I/O protection, and telecom infrastructure where AEC-Q101 compliance and 500 W surge handling are essential.
FAQ
What is the clamping voltage of the SMA5J10AHE3/5A under maximum surge conditions?
The SMA5J10AHE3/5A has a maximum clamping voltage (VC) of 17.0 V at its rated peak pulse current of 29.4 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024. The SMA5J10AHE3/5A maintains this clamping performance across its full operating temperature range (–55 to +150 °C), making it suitable for under-hood automotive applications.
Is the SMA5J10AHE3/5A suitable for bidirectional transient protection?
No, the SMA5J10AHE3/5A is a unidirectional TVS diode, indicated by the "A" suffix (not "CA"). It conducts only in reverse bias above VBR and blocks forward current like a standard diode. For bidirectional protection, Vishay offers the SMA5J10CA variant. Using SMA5J10AHE3/5A on AC-coupled or floating lines without proper polarity alignment may result in unintended forward conduction or failure to suppress negative transients.
What does the "HE3" suffix signify in SMA5J10AHE3/5A?
The "HE3" suffix in SMA5J10AHE3/5A denotes RoHS-compliant construction with AEC-Q101 qualification for automotive applications. "H" indicates AEC-Q101 qualification, "E3" confirms RoHS compliance and commercial-grade reliability. This distinguishes it from the non-automotive SMA5J10A-E3/5A (E3 only) and halogen-free variants like HM3. The SMA5J10AHE3/5A is fully traceable and approved for use in production automotive ECUs.
How does the thermal performance of SMA5J10AHE3/5A compare to similar TVS diodes in SMA packages?
The SMA5J10AHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 5.0 mm × 5.0 mm copper pads - matching industry-standard SMA TVS devices. Its junction-to-lead resistance (RθJL) is 25 °C/W, indicating efficient heat transfer to PCB copper. This thermal profile supports sustained operation at 150 °C junction temperature, outperforming many legacy SMA TVS parts that specify only RθJA derated above 25 °C without RθJL data.
Can SMA5J10AHE3/5A be used in parallel for higher surge current handling?
Parallel use of SMA5J10AHE3/5A devices is not recommended due to mismatch in VBR tolerance (11.1–12.3 V) and dynamic impedance, which causes uneven current sharing and potential single-device overstress. Vishay specifies absolute maximum ratings per individual device. For higher surge capacity, select a single higher-rated part such as SMA6J10AHE3/5A (600 W) or SMA10J10AHE3/5A (1000 W), both in the same SMA package and AEC-Q101 qualified.
SMA5J10AHE3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- 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)
SMA5J10AHE3/5A FAQ
1.How can I place an order for SMA5J10AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J10AHE3/5A 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 SMA5J10AHE3/5A reliable?
The price and inventory of SMA5J10AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J10AHE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J10AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J10AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J10AHE3/5A?
SMA5J10AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J10AHE3/5A 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 SMA5J10AHE3/5A?
For technical support, including SMA5J10AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J10AHE3/5A requirements.
6.How does Aetrix verify that SMA5J10AHE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J10AHE3/5A 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 SMA5J10AHE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J10AHE3/5A?
All SMA5J10AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J10AHE3/5A, 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 SMA5J10AHE3/5A part is unused and in its original packaging.
Return procedure for SMA5J10AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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