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Vishay General Semiconductor - Diodes Division SMA5J11C-E3/61
- Part No.:
- SMA5J11C-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11C-E3/61.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,350
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Product details
Overview
SMA5J11C-E3/61 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for clamping voltage transients on signal or power lines. It features a 11 V stand-off voltage (VWM), 18.2 V maximum clamping voltage (VC) at 27.5 A peak pulse current (IPPM), and 500 W peak pulse power (10/1000 µs waveform), commonly used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMA5J11C-E3/61 datasheet, SMA5J11C-E3/61 pinout, SMA5J11C-E3/61 application, or SMA5J11C-E3/61 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 rating, and thermal resistance of 80 °C/W (junction-to-ambient).
Technical Context
This bi-directional TVS diode operates symmetrically in both polarities, with breakdown voltage (VBR) specified between 12.2 V and 13.5 V at 1 mA test current. Its low incremental surge resistance enables effective energy diversion during fast transients such as ESD or inductive switching spikes.
The device uses a glass-passivated silicon junction and is rated for operation from –55 °C to +150 °C junction temperature. It meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and is qualified to AEC-Q101 for automotive under-hood and chassis applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 12.2 V / 13.5 V - Breakdown voltage range at 1 mA, defining turn-on threshold tolerance |
| VC @ IPPM | 18.2 V - Clamped voltage at 27.5 A peak pulse current, limiting downstream stress |
| PPPM | 500 W - Peak pulse power handling (10/1000 µs waveform), indicating surge robustness |
| TJ max | +150 °C - Maximum junction temperature, supporting high-ambient automotive environments |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance, guiding PCB copper pad sizing for thermal management |
| AEC-Q101 | Qualified - Validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case with matte tin-plated leads, 0.208" × 0.157" footprint, no polarity marking (bi-directional configuration). Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay's recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional polarity - either terminal serves as anode or cathode depending on transient polarity |
| Case (body) | Non-electrical mechanical interface | DO-214AC molded body provides mechanical anchoring and thermal path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| Glass-passivated junction | Improves long-term reliability and moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 rating | Allows direct placement into standard SMT reflow profiles without baking preconditioning |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS subsystems |
| Low Rsurge | Minimizes voltage overshoot during fast transients by reducing dynamic impedance under surge |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., temperature, pressure) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS clamping element placed at connector entry point to shunt transients before reaching signal conditioning ICs. Use Value: Limits induced voltage to ≤18.2 V during 27.5 A surges, preserving integrity of 3.3 V/5 V microcontrollers and ADC front-ends. | Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring transients and relay coil flyback. IC Role / Device Role / Timing Role: Standoff-clamp protector on 24 V DC input channels, operating continuously at 11 V while responding within <1 ns to spikes. Use Value: Prevents false triggering and latch-up in optocouplers and level translators during 500 W surge events. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from ESD and lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Primary board-level TVS on differential data lines, leveraging symmetrical response to preserve common-mode rejection. Use Value: Maintains signal integrity with ≤18.2 V clamping across both polarities, avoiding distortion in bidirectional communication links. | Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Low-profile TVS mounted near motor driver MOSFETs to clamp inductive kickback on 12–24 V rails. Use Value: Withstands repeated 500 W pulses and operates up to +150 °C ambient, matching motor enclosure thermal conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J11CA-E3/61 | Identical electrical specs and packaging; CA suffix explicitly denotes bi-directional version per Vishay naming convention | No functional difference - SMA5J11C-E3/61 and SMA5J11CA-E3/61 refer to same bi-directional device per Vishay documentation | Select SMA5J11CA-E3/61 when explicit CA-suffix ordering is required by procurement systems or legacy BOMs |
| SMCJ11CA | Same VWM/VC but higher PPPM (1500 W) and larger DO-214AB (SMC) package (7.11 mm × 6.22 mm vs. SMA's 4.93 mm × 3.99 mm) | Better surge handling for high-energy threats, but requires larger PCB area and different thermal pad layout | Choose SMCJ11CA only when system-level testing confirms need for >500 W clamping; otherwise SMA5J11C-E3/61 offers optimal power density |
Compared with SMA5J11CA-E3/61 (identical function) and SMCJ11CA (higher-power, larger-footprint alternative), SMA5J11C-E3/61 delivers certified AEC-Q101 bi-directional protection in the smallest qualified surface-mount form factor, balancing space, cost, and automotive-grade reliability without over-engineering.
Availability
SMA5J11C-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and full traceability.
Supply support for SMA5J11C-E3/61 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, MOSFETs, and protection devices with emphasis on reliability, power density, and automotive qualification.
The SMA5J series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in space-constrained, thermally demanding automotive and industrial environments.
FAQ
What does the "C" suffix in SMA5J11C-E3/61 indicate?
The "C" suffix in SMA5J11C-E3/61 explicitly designates a bi-directional configuration, meaning the device clamps voltage transients equally in both polarities. This is confirmed in Vishay's datasheet revision 24-Oct-12, where "CA" suffixes denote bi-directional types and "C" is used interchangeably for the same function in this family. SMA5J11C-E3/61 thus provides symmetrical protection without polarity dependency.
Is SMA5J11C-E3/61 AEC-Q101 qualified?
Yes, SMA5J11C-E3/61 is AEC-Q101 qualified, as stated in the Vishay datasheet under "Mechanical Data" and "Notes" sections. The HE3 suffix variant is explicitly labeled AEC-Q101 qualified, and the E3/61 variant shares identical construction, materials, and testing per Vishay's product family documentation - confirming its suitability for automotive applications including engine control and body electronics.
What is the maximum clamping voltage for SMA5J11C-E3/61 and at what current?
The maximum clamping voltage (VC) for SMA5J11C-E3/61 is 18.2 V, measured at a peak pulse current (IPPM) of 27.5 A using the standardized 10/1000 µs waveform. This value is listed in the "Electrical Characteristics" table of the Vishay datasheet and defines the upper voltage limit imposed on protected circuitry during surge events.
Does SMA5J11C-E3/61 have polarity markings on the package?
No, SMA5J11C-E3/61 has no polarity markings on the DO-214AC (SMA) package because it is a bi-directional TVS diode. As confirmed in the Vishay datasheet's "Mechanical Data" section: "no marking on bi-directional types." This symmetry allows flexible PCB layout without orientation constraints, simplifying automated assembly.
What is the thermal resistance and how does it affect PCB layout for SMA5J11C-E3/61?
SMA5J11C-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W, measured with 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 replicate this pad size and use internal ground planes for heat spreading - undersized pads will cause excessive temperature rise and derating of surge capability.
SMA5J11C-E3/61 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:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J11C-E3/61 FAQ
1.How can I place an order for SMA5J11C-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11C-E3/61 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 SMA5J11C-E3/61 reliable?
The price and inventory of SMA5J11C-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11C-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J11C-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11C-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11C-E3/61?
SMA5J11C-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11C-E3/61 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 SMA5J11C-E3/61?
For technical support, including SMA5J11C-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11C-E3/61 requirements.
6.How does Aetrix verify that SMA5J11C-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J11C-E3/61 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 SMA5J11C-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J11C-E3/61?
All SMA5J11C-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11C-E3/61, 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 SMA5J11C-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J11C-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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