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Vishay General Semiconductor - Diodes Division SMA5J11CAHE3/61
- Part No.:
- SMA5J11CAHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11CAHE3/61.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,541
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Product details
Overview
SMA5J11CAHE3/61 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 11 V standoff voltage (VWM), 12.2–13.5 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 μs), <1.0 μA reverse leakage at VWM, and clamps to ≤18.2 V at 27.5 A peak pulse current - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMA5J11CAHE3/61 datasheet, SMA5J11CAHE3/61 pinout, SMA5J11CAHE3/61 application, or SMA5J11CAHE3/61 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 500 W surge rating, low-leakage performance at 11 V, and compatibility with automated SMT assembly on standard 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamped shunt protector, responding within picoseconds to transients exceeding its VWM threshold and diverting surge current to ground while limiting downstream voltage to ≤18.2 V. Its glass-passivated junction ensures stable breakdown behavior and long-term reliability under repetitive surge stress.
Rated for -55 °C to +150 °C operation and qualified to AEC-Q101, the SMA5J11CAHE3/61 supports automotive-grade durability without derating up to 125 °C ambient. Its MSL Level 1 rating and matte tin-plated leads comply with J-STD-002 solderability and JESD22-B102 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range for protected line. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - Confirmed breakdown threshold range ensuring predictable turn-on across production lot and temperature. |
| IPPM | 27.5 A (10/1000 μs) - Peak surge current it safely clamps without failure; determines minimum trace width and PCB pad design. |
| VC | ≤18.2 V at IPPM - Clamped voltage seen by downstream IC; must be below absolute maximum rating of protected device. |
| PPPM | 500 W - Surge energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 events. |
| ID @ VWM | ≤1.0 μA - Ultra-low leakage preserves signal integrity and battery life in always-on sensor circuits. |
| TJ max | +150 °C - Junction temperature limit enabling use in under-hood automotive modules and high-ambient industrial enclosures. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H); cathode band absent per bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Surge current path terminal | Identical electrical behavior in both directions; connects to protected line and system ground respectively - layout requires equal trace impedance to ground on both sides. |
| Case (body) | Thermal and mechanical interface | Non-electrical; transfers heat to PCB copper pads (0.2" × 0.2" recommended per terminal); no internal connection to die. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and body electronics per stress test requirements. |
| 500 W peak pulse power | Supports robust protection against high-energy transients such as load dump (ISO 7637-2 Pulse 5a) without thermal runaway. |
| Glass-passivated junction | Ensures stable VBR tolerance and low parameter drift over 15+ years in harsh environments. |
| MSL Level 1, 260 °C reflow compatible | Enables single-pass lead-free reflow without moisture-induced popcorning or delamination. |
| RoHS-compliant, halogen-free option available | Meets EU RoHS Directive 2011/65/EU and JEDEC JS709C material restrictions for green manufacturing. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/FlexRay transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from ESD and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional shunt TVS placed between signal line and chassis ground, clamping transients before they reach the transceiver's input stage. Use Value: Maintains signal fidelity during 8 kV contact ESD (IEC 61000-4-2) and prevents latch-up in AEC-Q100 Grade 2 ICs. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controller (PLC) modules exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact inputs, coordinated with upstream series impedance to limit let-through energy. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) Level 3 without external crowbar circuitry. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485/RS-232 data lines in base station backhaul units from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line transient suppressor mounted at connector entry point, preceding signal conditioning and isolation stages. Use Value: Limits clamped voltage to <18.2 V, preserving integrity of ±12 V receiver common-mode range and preventing damage to isolated UART ICs. |
Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine motor inverters from commutation noise and power supply transients. IC Role / Device Role / Timing Role: Localized TVS on low-voltage control signals (e.g., PWM enable, fault feedback) routed near brushless DC motor driver ICs. Use Value: Prevents false triggering and resets caused by >1 kV fast transients, improving appliance MTBF in real-world installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J11CA-M3/61 | Same electrical specs and AEC-Q101 qualification; differs only in halogen-free molding compound (per JEDEC JS709C). | Required where halogen-free compliance is mandated by OEM tier-1 procurement policy (e.g., BMW, Daimler). | Select SMA5J11CA-M3/61 when environmental compliance documentation (e.g., IEC 61249-2-21) is contractually required. |
| SMCJ11CAHE3/61 | Same VWM/VBR/VC but higher PPPM = 1500 W and larger SMC (DO-214AB) package (7.11 mm × 6.22 mm). | Suitable for higher-energy threats (e.g., ISO 16750-2 Load Dump) where board space allows larger footprint. | Choose SMCJ11CAHE3/61 only if surge threat level exceeds 500 W and PCB layout accommodates 2.5× larger footprint. |
Compared with SMA5J11CAHE3/61, SMA5J11CA-M3/61 offers identical protection performance with halogen-free assurance, while SMCJ11CAHE3/61 trades compact size for triple the surge power - making SMA5J11CAHE3/61 optimal for space-constrained AEC-Q101 designs needing 500 W capability.
Availability
SMA5J11CAHE3/61 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 AEC-Q101 traceability.
Supply support for SMA5J11CAHE3/61 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 TVS devices with emphasis on reliability, power density, and automotive qualification.
The SMA5J family delivers high-power-density transient suppression in compact SMA packages, engineered specifically for AEC-Q101-compliant automotive and industrial applications demanding robust, surface-mount surge protection.
FAQ
What does the "CA" suffix indicate in SMA5J11CAHE3/61?
The "CA" suffix in SMA5J11CAHE3/61 denotes a bidirectional transient voltage suppressor configuration, meaning it provides symmetrical clamping in both forward and reverse directions - unlike unidirectional variants (e.g., SMA5J11A) that require correct polarity orientation. This makes SMA5J11CAHE3/61 ideal for AC-coupled or differential signal lines where voltage polarity may reverse.
Is SMA5J11CAHE3/61 qualified for automotive applications?
Yes, SMA5J11CAHE3/61 is fully AEC-Q101 qualified, as confirmed by Vishay's official documentation and ordering code "HE3" (RoHS-compliant + AEC-Q101). It undergoes stress testing for temperature cycling, humidity, mechanical shock, and surge endurance - meeting requirements for under-hood and cabin-mounted automotive electronics.
What is the maximum clamping voltage of SMA5J11CAHE3/61 at rated surge current?
The maximum clamping voltage (VC) of SMA5J11CAHE3/61 is 18.2 V when subjected to its rated peak pulse current (IPPM) of 27.5 A under the standardized 10/1000 μs waveform. This value is guaranteed across temperature and production lot, ensuring downstream ICs see no more than 18.2 V during surge events.
Does SMA5J11CAHE3/61 have polarity markings on the package?
No, SMA5J11CAHE3/61 has no polarity markings because it is a bidirectional device - its anode and cathode terminals are functionally identical. The SMA (DO-214AC) case is unmarked, distinguishing it from unidirectional variants that feature a cathode band. PCB layout must treat both terminals symmetrically.
What is the thermal resistance of SMA5J11CAHE3/61, and how does it affect layout?
SMA5J11CAHE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. To maintain TJ ≤ 150 °C under worst-case surge duty, PCB layout must provide adequate copper area and avoid thermal bottlenecks - especially critical in sealed automotive enclosures.
SMA5J11CAHE3/61 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J11CAHE3/61 FAQ
1.How can I place an order for SMA5J11CAHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11CAHE3/61 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 SMA5J11CAHE3/61 reliable?
The price and inventory of SMA5J11CAHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11CAHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J11CAHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11CAHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11CAHE3/61?
SMA5J11CAHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11CAHE3/61 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 SMA5J11CAHE3/61?
For technical support, including SMA5J11CAHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11CAHE3/61 requirements.
6.How does Aetrix verify that SMA5J11CAHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J11CAHE3/61 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 SMA5J11CAHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J11CAHE3/61?
All SMA5J11CAHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11CAHE3/61, 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 SMA5J11CAHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J11CAHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J11CAHE3/61 Tags
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