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Vishay General Semiconductor - Diodes Division SMA5J11HE3/61
- Part No.:
- SMA5J11HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11HE3/61.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,655
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Product details
Overview
SMA5J11HE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on power and signal lines. It features a 11 V standoff voltage (VWM), 12.2–13.5 V breakdown voltage (VBR), 18.2 V clamping voltage at 27.5 A peak pulse current, and 500 W peak pulse power dissipation with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the SMA5J11HE3/61 datasheet, SMA5J11HE3/61 pinout, SMA5J11HE3/61 application, or SMA5J11HE3/61 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its 11 V reverse standoff voltage and rapidly transitions to low-impedance conduction above its 12.2–13.5 V breakdown threshold. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and robust surge handling under repetitive transients.
The device delivers 500 W peak pulse power per 10/1000 µs waveform with 18.2 V clamping voltage at 27.5 A, supported by low incremental surge resistance and fast response time. Thermal design is enabled by RθJA = 80 °C/W and RθJL = 25 °C/W, and it meets MSL Level 1 (260 °C reflow peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V reverse stand-off voltage - defines maximum continuous operating voltage before clamping begins |
| VBR min/max | 12.2 V / 13.5 V at 1 mA test current - ensures reliable triggering across manufacturing tolerance |
| VC @ IPPM | 18.2 V clamping voltage at 27.5 A - limits downstream voltage stress during surge events |
| PPPM | 500 W peak pulse power - supports IEC 61000-4-5 Level 4 surge immunity compliance |
| TJ max | +150 °C maximum junction temperature - enables operation in under-hood automotive environments |
| Polarity | Unidirectional - cathode band marked; blocks forward current until breakdown, conducts reverse surge |
| MSL Rating | Level 1 per J-STD-020 - allows single-reflow soldering without dry-pack requirements |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode band denotes terminal polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-banded end is cathode) | Connected to protected line ground or return; completes clamping path during reverse surge |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable leakage current (<1.0 µA) and long-term parameter stability under humidity and bias stress |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
| MSL Level 1 rating | Enables direct placement into reflow assembly without baking or moisture-sensitive handling |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance for high-reliability solder joints |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump and jump-start surges on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and chassis ground. Use Value: Limits transient voltage to ≤18.2 V during 27.5 A surges, protecting downstream PMICs and microcontrollers rated for 16 V absolute max. | Use Scenario: Guarding analog input pins of temperature/pressure sensors against ESD and inductive switching noise in PLC I/O modules. IC Role / Device Role / Timing Role: Signal-line TVS connected between sensor output and ground, with low capacitance preserving signal integrity. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) while maintaining <1.0 µA leakage at 11 V, avoiding DC offset errors. |
| DC Motor Drive Output Protection | Telecom Power Supply Input Protection |
Use Scenario: Protecting half-bridge MOSFET gates and freewheeling diodes from flyback voltage spikes in brushed DC motor drivers. IC Role / Device Role / Timing Role: Unidirectional TVS mounted across motor terminals or supply rails to clamp inductive kickback. Use Value: Absorbs 500 W surge energy within 1000 µs, limiting voltage overshoot to 18.2 V and preventing gate oxide rupture in 20 V-rated MOSFETs. | Use Scenario: Safeguarding AC/DC converter inputs against lightning-induced surges in outdoor telecom base station power supplies. IC Role / Device Role / Timing Role: Primary-stage TVS on rectified DC bus, coordinated with MOVs and fuses per IEC 61643-11. Use Value: Provides precise 11 V clamping threshold and 27.5 A surge current capacity, enabling selective coordination with upstream overvoltage protection. |
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 | Commercial-grade (non-AEC-Q101), same electrical specs and DO-214AC package | Lacks automotive qualification; suitable for consumer/industrial but not automotive OEM designs | Select SMA5J11A-E3/61 only if AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
| SMC5J11AHE3/61 | Same electrical specs but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 35 °C/W vs. 80 °C/W) | Better power derating above 25 °C; requires larger PCB footprint and different pad layout | Choose SMC5J11AHE3/61 when sustained surge duty cycle or ambient >85 °C demands lower thermal resistance |
Compared with SMA5J11A-E3/61, the SMA5J11HE3/61 adds AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; versus SMC5J11AHE3/61, it trades thermal performance for space-constrained layouts where DO-214AC footprint is mandatory.
Availability
SMA5J11HE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and DC motor drive protection requiring stable component supply, AEC-Q101 compliance, and high-volume SMT manufacturability.
Supply support for SMA5J11HE3/61 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, efficiency, and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained automotive and industrial applications, delivering 500 W surge capability in the compact DO-214AC package with AEC-Q101 validation.
FAQ
What is the clamping voltage of the SMA5J11HE3/61 under maximum surge conditions?
The SMA5J11HE3/61 has a maximum clamping voltage (VC) of 18.2 V at its rated peak pulse current (IPPM) of 27.5 A, measured using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and ensures predictable overvoltage limiting for downstream components. The SMA5J11HE3/61 achieves this with low incremental surge resistance and a glass-passivated junction for stable performance.
Is the SMA5J11HE3/61 suitable for automotive applications?
Yes, the SMA5J11HE3/61 is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and infotainment systems. Its construction includes matte tin-plated leads meeting JESD 201 Class 2 whisker resistance, MSL Level 1 reflow compatibility, and operation up to +150 °C junction temperature. The SMA5J11HE3/61 meets these requirements without derating in typical under-hood environments.
What does the "HE3" suffix indicate in SMA5J11HE3/61?
The "HE3" suffix in SMA5J11HE3/61 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - distinguishing it from the commercial "E3" variant. It confirms enhanced process controls for automotive reliability, including extended temperature cycling, high-temperature reverse bias, and mechanical robustness testing. The SMA5J11HE3/61 is traceable to Vishay's qualified automotive production line.
How does the SMA5J11HE3/61 compare to bi-directional TVS diodes like SMA5J11CA?
The SMA5J11HE3/61 is unidirectional and intended for DC line protection where polarity is fixed, offering lower leakage (<1.0 µA at 11 V) and no symmetrical clamping ambiguity. In contrast, SMA5J11CA is bi-directional and suited for AC or floating signal lines but exhibits higher leakage and dual-threshold behavior. The SMA5J11HE3/61 should be selected when protecting a defined-polarity rail such as a 12 V supply or MOSFET gate drive.
What PCB layout guidance applies to the SMA5J11HE3/61 for optimal surge performance?
For optimal surge performance, the SMA5J11HE3/61 must be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to ensure adequate heat spreading and low-inductance current paths. Short, wide traces to ground minimize impedance during clamping; avoid vias in the surge path. The SMA5J11HE3/61 thermal resistance (RθJA = 80 °C/W) assumes this layout - deviation increases junction temperature and reduces surge endurance.
SMA5J11HE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 20.1V
- Current - Peak Pulse (10/1000µs):
- 24.9A
- 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)
SMA5J11HE3/61 FAQ
1.How can I place an order for SMA5J11HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11HE3/61 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 SMA5J11HE3/61 reliable?
The price and inventory of SMA5J11HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J11HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11HE3/61?
SMA5J11HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11HE3/61 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 SMA5J11HE3/61?
For technical support, including SMA5J11HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11HE3/61 requirements.
6.How does Aetrix verify that SMA5J11HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J11HE3/61 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 SMA5J11HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J11HE3/61?
All SMA5J11HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11HE3/61, 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 SMA5J11HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J11HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J11HE3/61 Tags
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