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Vishay General Semiconductor - Diodes Division SMA5J11AHE3/61
- Part No.:
- SMA5J11AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11AHE3/61.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J11AHE3/61 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 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR), 18.2 V clamping voltage (VC) at 27.5 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J11AHE3/61 datasheet, SMA5J11AHE3/61 pinout, SMA5J11AHE3/61 application, or SMA5J11AHE3/61 equivalent, key selection criteria include clamping performance under 27.5 A surge, AEC-Q101 qualification status, unidirectional polarity marking, 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 voltage-clamped shunt protector: when reverse voltage exceeds VBR (12.2–13.5 V), it avalanches rapidly (<1 ns response) to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and long-term reliability under repetitive surges.
Rated for -55 °C to +150 °C junction temperature, SMA5J11AHE3/61 supports high-reliability applications via AEC-Q101 qualification (HE3 suffix), J-STD-020 MSL Level 1 moisture sensitivity, and matte tin-plated leads compliant with JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 12.2 V / 13.5 V - breakdown occurs within this range at 1 mA test current; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 18.2 V at 27.5 A - clamping voltage during 10/1000 µs surge; limits protected IC voltage stress below 20 V threshold. |
| PPPM | 500 W - peak pulse power handling capability; sustains 500 W for ≤1 ms per IEC 61000-4-5 surge events. |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine); supports inrush current immunity in DC power rails. |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments and enclosed industrial enclosures. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band at one end; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return plane; must be routed with minimal inductance to maintain clamping speed. |
| Cathode (banded end) | Reverse-biased terminal during normal operation | Connected to protected line (e.g., 12 V rail or signal input); avalanche conduction initiates here during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, body electronics, and ADAS modules. |
| Glass-passivated junction | Eliminates surface contamination and leakage drift over time; maintains <1.0 µA reverse leakage at 11 V after 1000 hrs HTOL stress. |
| MSL Level 1 (260 °C peak) | Enables standard reflow without pre-baking; compatible with high-volume SMT assembly lines using lead-free solder profiles. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients; achieves 18.2 V clamping at 27.5 A with <0.5 Ω effective dynamic impedance. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of ECUs, lighting controllers, and infotainment head units against load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VIN and GND, clamping transients before they reach LDOs or microcontrollers. Use Value: Withstands 500 W pulses and maintains VC ≤ 18.2 V, ensuring downstream 24 V tolerant ICs remain within absolute maximum ratings. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in PLCs and motor drives exposed to EFT/burst noise. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) TVS on signal line, grounded at controller side, suppressing ±2 kV ESD per IEC 61000-4-2. Use Value: Sub-1 ns response and <1.0 µA leakage at 11 V prevent signal distortion and offset drift in precision measurement paths. |
| DC-DC Converter Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Front-end protection of buck converter inputs fed from 12–24 V batteries subject to ISO 7637-2 pulse 1, 2a, and 5a transients. IC Role / Device Role / Timing Role: Primary clamping device upstream of input filter capacitor; coordinates with MOVs or gas discharge tubes for multi-stage protection. Use Value: 40 A IFSM rating handles inrush currents while 500 W PPPM absorbs repetitive switching-induced spikes without degradation. | Use Scenario: Secondary-level surge protection on 48 V phantom-powered telecom interfaces (e.g., PoE midspan inputs) subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on DC feed line, referenced to chassis ground, limiting voltage to <20 V during 10/1000 µs transients. Use Value: RθJA = 80 °C/W and TJmax = +150 °C allow reliable operation in sealed line card enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J11A-E3/61 | Same electrical specs, but commercial-grade (non-AEC-Q101); no automotive qualification testing performed. | Limited to consumer, computing, and non-safety-critical industrial use; not approved for automotive OEM BOMs. | Select SMA5J11AHE3/61 when AEC-Q101 compliance is mandatory; choose SMA5J11A-E3/61 for cost-sensitive commercial designs. |
| SMA6J11AHE3/61 | 600 W PPPM rating (vs. 500 W), identical VWM/VBR/VC, same package and AEC-Q101 qualification. | Better suited for higher-energy surge environments (e.g., heavy-duty vehicle alternator load dump). | Use SMA6J11AHE3/61 where system-level surge tests exceed 500 W; SMA5J11AHE3/61 remains optimal for standard 12 V automotive applications. |
Compared with SMA5J11A-E3/61, SMA5J11AHE3/61 adds AEC-Q101 validation for automotive deployment, while SMA6J11AHE3/61 increases surge power headroom to 600 W without changing footprint or clamping behavior - enabling direct upgrade paths in validated designs.
Availability
SMA5J11AHE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and DC-DC converter input protection requiring stable component supply, AEC-Q101 compliance, and consistent 500 W surge handling.
Supply support for SMA5J11AHE3/61 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 automotive-grade qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained SMT applications, targeting automotive, industrial, and telecom systems where robustness against ISO 7637, IEC 61000-4-5, and ESD events is critical.
FAQ
What is the clamping voltage of SMA5J11AHE3/61 and how is it measured?
The clamping voltage (VC) of SMA5J11AHE3/61 is 18.2 V, measured at 27.5 A peak pulse current using a 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the maximum voltage seen across the device during surge conduction and is verified under standardized test conditions with 0.2" × 0.2" copper pads. SMA5J11AHE3/61 maintains this clamping performance across its full operating temperature range.
Is SMA5J11AHE3/61 suitable for automotive applications?
Yes, SMA5J11AHE3/61 is AEC-Q101 qualified, making it suitable for automotive applications including engine control units, body electronics, and ADAS sensors. The HE3 suffix explicitly denotes AEC-Q101 qualification, and the device meets requirements for temperature cycling, high-temperature reverse bias, and mechanical shock. SMA5J11AHE3/61 is rated for -55 °C to +150 °C junction temperature and supports ISO 7637-2 load dump protection.
What does the "HE3" suffix mean in SMA5J11AHE3/61?
The "HE3" suffix in SMA5J11AHE3/61 indicates RoHS-compliant construction with AEC-Q101 qualification. "H" denotes AEC-Q101 qualification, "E3" confirms RoHS compliance and commercial-grade reliability level. This distinguishes SMA5J11AHE3/61 from non-automotive variants like SMA5J11A-E3/61 and ensures traceability to qualified manufacturing lots. SMA5J11AHE3/61 is fully documented in Vishay's AEC-Q101 certification reports.
How does SMA5J11AHE3/61 differ from bidirectional TVS diodes like SMA5J11CA?
SMA5J11AHE3/61 is unidirectional and features a cathode band for polarity identification, while SMA5J11CA is bidirectional with no polarity marking and symmetric clamping in both directions. SMA5J11AHE3/61 has lower leakage (<1.0 µA at 11 V) and supports forward surge current (IFSM = 40 A), unlike bidirectional types. SMA5J11AHE3/61 is intended for DC line protection; SMA5J11CA suits AC or differential signal lines.
What PCB layout considerations apply to SMA5J11AHE3/61?
For optimal performance, SMA5J11AHE3/61 must be mounted on minimum recommended pad layout: 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, with short, wide traces to minimize inductance. Thermal relief should be avoided on cathode/anode pads to ensure low RθJL (25 °C/W). SMA5J11AHE3/61 requires no additional heatsinking but benefits from internal layer copper pour connected to pads for enhanced thermal dissipation.
SMA5J11AHE3/61 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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 27.5A
- 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)
SMA5J11AHE3/61 FAQ
1.How can I place an order for SMA5J11AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11AHE3/61 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 SMA5J11AHE3/61 reliable?
The price and inventory of SMA5J11AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J11AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11AHE3/61?
SMA5J11AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11AHE3/61 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 SMA5J11AHE3/61?
For technical support, including SMA5J11AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11AHE3/61 requirements.
6.How does Aetrix verify that SMA5J11AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J11AHE3/61 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 SMA5J11AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J11AHE3/61?
All SMA5J11AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11AHE3/61, 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 SMA5J11AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J11AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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