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Vishay General Semiconductor - Diodes Division SMA5J11CA-E3/61
- Part No.:
- SMA5J11CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11CA-E3/61.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,416
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Product details
Overview
SMA5J11CA-E3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping ESD and surge transients on signal/power lines. It features 11 V standoff voltage (VWM), 12.2–13.5 V breakdown (VBR), 500 W peak pulse power (10/1000 µs), 27.5 A peak pulse current (IPPM), and 18.2 V maximum clamping voltage (VC) - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J11CA-E3/61 datasheet, SMA5J11CA-E3/61 pinout, SMA5J11CA-E3/61 application, or SMA5J11CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, 500 W surge rating at 10/1000 µs, RoHS-compliant matte tin terminals, MSL Level 1 qualification, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical reverse/forward conduction characteristics due to its bidirectional construction. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for protecting MOSFET gates and microcontroller I/O pins against inductive switching spikes and lightning-induced surges.
The SMA5J11CA-E3/61 is rated for -55 °C to +150 °C junction temperature, with thermal resistance RθJA = 80 °C/W (on recommended pad layout) and RθJL = 25 °C/W. It meets JESD201 Class 2 whisker resistance and is qualified to AEC-Q101 when ordered with HE3/HM3 suffixes - though SMA5J11CA-E3/61 itself is commercial-grade RoHS-compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before clamping begins; sets safe margin above 9–10 V nominal bus/signal levels. |
| VBR (min/max) | 12.2 V / 13.5 V - guaranteed breakdown range at 1 mA test current; ensures consistent turn-on across production lots. |
| VC @ IPPM | 18.2 V - clamped voltage during 27.5 A 10/1000 µs surge; defines worst-case overvoltage seen by protected IC. |
| PPPM | 500 W - peak pulse power handling per single transient; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) compliance with margin. |
| IPPM | 27.5 A - peak surge current at VC; determines minimum trace width and PCB copper area needed for 5.0 mm × 5.0 mm pad layout. |
| Junction Temp Range | -55 °C to +150 °C - enables use in under-hood automotive and industrial environments without derating below 25 °C ambient. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. No polarity marking - bidirectional operation confirmed per datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No cathode band; terminals interchangeable - simplifies PCB layout and eliminates orientation errors during placement. |
| Case (body) | Thermal and mechanical interface | Plastic housing rated UL 94 V-0; requires 5.0 mm × 5.0 mm copper pads per terminal for rated 500 W dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables <1 ns response time and stable leakage (<1 μA at VWM) across temperature and lifetime. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak - compatible with standard lead-free SMT processes without dry-pack requirements. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin for 3.3 V/5 V logic. |
| RoHS-compliant, halogen-free option available | E3 suffix denotes commercial-grade RoHS compliance; M3 suffix adds halogen-free molding compound for stricter environmental programs. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between connector and transceiver IC input pins. Use Value: Clamps 12 V bus transients to ≤18.2 V, preventing latch-up or gate oxide damage in 5 V-tolerant transceivers while maintaining signal integrity. | Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges (e.g., relay coil flyback, motor noise). IC Role / Device Role / Timing Role: Primary surge shunt on 24 V DC input channels, mounted directly at connector entry point. Use Value: Absorbs 500 W pulses without degradation, enabling >100,000 surge cycles per IEC 61000-4-5, reducing field failure rates in factory automation. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding USB-C PD port CC lines and VBUS monitoring circuits against ESD and hot-plug transients in wall adapters. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary MOV/fuse, targeting fast sub-nanosecond ESD events. Use Value: Sub-1 ns response and <1 μA leakage at 11 V ensure no interference with USB PD communication timing or voltage sensing accuracy. | Use Scenario: Protecting Ethernet PHY differential pairs and auxiliary power rails on telecom line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Common-mode surge clamp on RJ45 interface side, used alongside gas discharge tubes for staged protection. Use Value: 18.2 V clamping holds PHY supply within safe operating range during 10/1000 µs surges, avoiding reset or data corruption in 10/100/1000BASE-T links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J11A-E3/61 | Unidirectional; cathode band marked; same VWM, VBR, PPPM, but only conducts in reverse direction. | Requires correct polarity placement; unsuitable for AC-coupled or bidirectional signal lines like RS-485 or CAN. | Select SMA5J11A-E3/61 only when protecting unidirectional DC rails where polarity is fixed and known. |
| SMB5J11CA-E3/52 | Same electrical specs but SMB (DO-214AA) package - 4.58 mm × 3.94 mm vs. SMA's 4.50 mm × 2.79 mm; 600 W PPPM rating. | Larger footprint and higher power handling; better thermal performance on minimal copper, but incompatible with SMA land pattern. | Choose SMB5J11CA-E3/52 when board space allows larger package and higher surge margin is required beyond 500 W. |
Compared with SMA5J11A-E3/61, the SMA5J11CA-E3/61 enables polarity-agnostic layout and protects AC signals, while SMB5J11CA-E3/52 offers 20 % higher surge power in a physically larger package - neither is pin-compatible, requiring PCB redesign if substituted.
Availability
SMA5J11CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter designs requiring stable component supply, RoHS compliance, and high-volume SMT manufacturability.
Supply support for SMA5J11CA-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, TVS devices, and optoelectronics with emphasis on reliability, power density, and automotive 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 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of the SMA5J11CA-E3/61 under a 10/1000 µs surge?
The SMA5J11CA-E3/61 has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current of 27.5 A using the standardized 10/1000 µs waveform. This value is measured at TA = 25 °C on the recommended 5.0 mm × 5.0 mm copper pad layout and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the SMA5J11CA-E3/61 suitable for automotive applications?
The SMA5J11CA-E3/61 is RoHS-compliant and built on Vishay's AEC-Q101-qualified platform, but the E3/61 suffix indicates commercial-grade qualification. For production automotive use, specify SMA5J11CAHE3_A/H (AEC-Q101 qualified); the SMA5J11CA-E3/61 remains appropriate for prototyping, non-safety-critical subsystems, or aftermarket designs where full qualification is not mandated.
Does the SMA5J11CA-E3/61 have polarity markings?
No, the SMA5J11CA-E3/61 does not feature a cathode band or other polarity marking because it is a bidirectional TVS diode. Both terminals are functionally identical, allowing flexible PCB layout without orientation constraints - unlike unidirectional variants such as SMA5J11A-E3/61, which include a visible cathode band.
What is the thermal resistance of the SMA5J11CA-E3/61?
The SMA5J11CA-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on the manufacturer-recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Its junction-to-lead resistance (RθJL) is 25 °C/W, supporting reliable operation up to +150 °C junction temperature under defined PCB layout conditions.
Can the SMA5J11CA-E3/61 be used in place of SMA5J11A-E3/61?
No - the SMA5J11CA-E3/61 is bidirectional while SMA5J11A-E3/61 is unidirectional, making them functionally distinct. Substituting SMA5J11CA-E3/61 for SMA5J11A-E3/61 may cause unintended conduction in DC circuits; conversely, using SMA5J11A-E3/61 in bidirectional signal paths (e.g., RS-485) will fail to protect one polarity. Always match device type (A vs. CA suffix) to circuit topology.
SMA5J11CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J11CA-E3/61 FAQ
1.How can I place an order for SMA5J11CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11CA-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 SMA5J11CA-E3/61 reliable?
The price and inventory of SMA5J11CA-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 SMA5J11CA-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J11CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11CA-E3/61?
SMA5J11CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11CA-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 SMA5J11CA-E3/61?
For technical support, including SMA5J11CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11CA-E3/61 requirements.
6.How does Aetrix verify that SMA5J11CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J11CA-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 SMA5J11CA-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J11CA-E3/61?
All SMA5J11CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11CA-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 SMA5J11CA-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J11CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J11CA-E3/61 Tags
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