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Vishay General Semiconductor - Diodes Division SMA5J11C-E3/5A
- Part No.:
- SMA5J11C-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11C-E3/5A.pdf
- Description:
- TVS DIODE 11VWM 20.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,455
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Product details
Overview
SMA5J11C-E3/5A 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 and 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), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualification - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the SMA5J11C-E3/5A datasheet, SMA5J11C-E3/5A pinout, SMA5J11C-E3/5A application, or SMA5J11C-E3/5A equivalent, key selection criteria include bi-directional clamping capability, low VC/VWM ratio (1.65), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
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 clamping performance is characterized under standardized 10/1000 µs surge waveform, delivering 18.2 V max VC at 27.5 A IPPM, enabling robust protection of downstream ICs against ESD and load dump events.
Thermal design relies on RθJA = 80 °C/W (typ.) and RθJL = 25 °C/W (typ.), supporting operation from –55 °C to +150 °C junction temperature. The device uses glass-passivated silicon junction and meets JESD201 Class 1A whisker resistance, confirming suitability for high-reliability automotive and industrial PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping 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; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 18.2 V - Clamped voltage seen by protected circuit at 27.5 A surge; limits stress on downstream MOSFETs or microcontrollers. |
| PPPM | 500 W - Peak pulse power handling (10/1000 µs); supports common ISO 7637-2 and IEC 61000-4-5 surge immunity requirements. |
| IPPM | 27.5 A - Peak surge current capability; derived from PPPM/VC, validated per Fig. 1 and Fig. 3 in datasheet. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments without derating below 125 °C ambient. |
| Package | DO-214AC (SMA) - Surface-mount package with 5.28 mm × 4.50 mm footprint; compatible with standard reflow profiles up to 260 °C peak. |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case meeting UL 94 V-0; matte tin-plated leads solderable per J-STD-002 and JESD22-B102; no polarity marking for bi-directional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No cathode band marking; terminals interchangeable - enables single-component protection of AC-coupled or differential signal lines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| MSL Level 1 (260 °C) | Unlimited floor life and compatibility with lead-free reflow without baking - eliminates production delays in high-volume SMT lines. |
| Low incremental surge resistance | Enables tighter VC/VBR ratio (1.42) and faster voltage stabilization during fast-rising transients (e.g., ISO 10605 ESD). |
| Glass passivated junction | Improves long-term stability and leakage control (<1 μA at VWM) across temperature and humidity stress conditions. |
| 500 W peak pulse rating | Meets IEC 61000-4-5 Level 3 (1 kV line-to-ground, 2 kV line-to-line) without external series impedance in many 12 V system designs. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and jump-start surges in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt transient energy before it reaches signal conditioning circuitry. Use Value: Limits induced voltage to ≤18.2 V during 27.5 A transients, preserving integrity of 3.3 V/5 V microcontrollers and ADC front-ends without adding series resistance or delay. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring faults and inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between input line and ground, responding within <1 ns to suppress >1 kV spikes per IEC 61000-4-4. Use Value: Maintains 11 V operating margin while clamping to 18.2 V, preventing false triggering and latch-up in optocoupler-based isolation stages. |
| Telecom Line Card Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding Ethernet PHY interfaces and RS-485 transceivers on telecom base station line cards from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair, coordinated with secondary GDT or MOV for staged protection architecture. Use Value: Delivers 500 W pulse handling with 18.2 V clamping - reduces need for additional series impedance, preserving signal integrity up to 100 Mbps. |
Use Scenario: Guarding microcontroller GPIOs and gate drivers in smart appliance motor control boards against commutation spikes from BLDC fan or pump motors. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to motor driver IC output pins to absorb inductive energy during PWM switching transitions. Use Value: Withstands repetitive 27.5 A pulses without degradation, extending board lifetime in high-cycle consumer applications operating at 85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ11CA | Same DO-214AC package, identical VWM (11 V), but VC = 19.0 V @ 26.3 A; slightly higher clamping voltage and lower IPPM. | Marginally reduced protection level for 3.3 V logic interfaces; acceptable where 19.0 V clamping is within downstream IC absolute max rating. | Select when cross-sourcing with Littelfuse-designated BOMs or where minor VC increase is acceptable for cost optimization. |
| ON Semiconductor 1.5SMC11CA | Higher power rating (1500 W), larger DO-214AB (SMB) package (5.28 mm × 4.57 mm), VC = 18.2 V @ 82.5 A - same clamping but different thermal and layout constraints. | Requires PCB redesign due to larger footprint and higher thermal mass; suited for higher-energy surge environments (e.g., mains-connected equipment). | Choose only when 500 W is insufficient and board space allows SMB package; not drop-in compatible with SMA layout. |
Compared with SMA5J11C-E3/5A, SMAJ11CA offers near-identical electrical behavior with minor clamping trade-offs, while 1.5SMC11CA provides triple the power rating at the cost of larger size and non-interchangeable mounting - making SMA5J11C-E3/5A optimal for space-constrained automotive and industrial SMT designs requiring AEC-Q101 validation.
Availability
SMA5J11C-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card surge protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMA5J11C-E3/5A 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 protection devices with emphasis on reliability, power density, and automotive qualification.
The SMA5J family delivers high-power-density TVS diodes optimized for AEC-Q101-compliant transient suppression in 12 V/24 V automotive and harsh-environment industrial systems - balancing clamping performance, thermal robustness, and SMT manufacturability.
FAQ
What is the polarity configuration of SMA5J11C-E3/5A?
SMA5J11C-E3/5A is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Its electrical characteristics apply identically in both directions, making it suitable for protecting AC-coupled signals, differential buses like CAN, or ungrounded power rails where polarity reversal may occur during fault conditions.
Does SMA5J11C-E3/5A meet automotive qualification standards?
Yes, SMA5J11C-E3/5A is AEC-Q101 qualified - verified per stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD (HBM ≥8 kV). This certification confirms its suitability for under-hood and cabin electronics in passenger vehicles, commercial trucks, and ADAS subsystems.
What is the maximum clamping voltage of SMA5J11C-E3/5A and at what current is it specified?
The maximum clamping voltage (VC) of SMA5J11C-E3/5A is 18.2 V, measured at 27.5 A peak pulse current (IPPM) under the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream IC overvoltage margin analysis.
Can SMA5J11C-E3/5A be used in lead-free reflow processes?
Yes, SMA5J11C-E3/5A is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102, and the device passes JESD201 Class 1A whisker testing - ensuring reliable solder joint formation in lead-free manufacturing.
How does the thermal resistance of SMA5J11C-E3/5A affect PCB layout?
SMA5J11C-E3/5A has typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. To maintain TJ ≤150 °C during repetitive surges, designers must provide adequate copper area and avoid thermal bottlenecks - especially critical in compact automotive modules operating above 85 °C ambient.
SMA5J11C-E3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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-E3/5A FAQ
1.How can I place an order for SMA5J11C-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11C-E3/5A 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 SMA5J11C-E3/5A reliable?
The price and inventory of SMA5J11C-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11C-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J11C-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11C-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11C-E3/5A?
SMA5J11C-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11C-E3/5A 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 SMA5J11C-E3/5A?
For technical support, including SMA5J11C-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11C-E3/5A requirements.
6.How does Aetrix verify that SMA5J11C-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J11C-E3/5A 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 SMA5J11C-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J11C-E3/5A?
All SMA5J11C-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11C-E3/5A, 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 SMA5J11C-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J11C-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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