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Vishay General Semiconductor - Diodes Division SMA5J11AHM3/I
- Part No.:
- SMA5J11AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J11AHM3/I.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,442
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Product details
Overview
SMA5J11AHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR at 1 mA), 18.2 V clamping voltage (VC) at 27.5 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform. It is halogen-free, RoHS-compliant, and AEC-Q101 qualified for automotive-grade reliability.
For engineers reviewing the SMA5J11AHM3/I datasheet, SMA5J11AHM3/I pinout, SMA5J11AHM3/I application, or SMA5J11AHM3/I equivalent, key selection criteria include clamping performance under 27.5 A surge, thermal resistance (RθJA = 80 °C/W), unidirectional polarity marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector, leveraging an avalanche breakdown mechanism to clamp transient overvoltages before they damage downstream ICs or MOSFETs. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable breakdown behavior across temperature.
Rated for -55 °C to +150 °C junction operation, it delivers consistent clamping (VC ≤ 18.2 V) under standardized 10/1000 μs surges and supports unidirectional forward conduction up to 40 A (8.3 ms half-sine). The SMA package enables surface-mount integration with MSL Level 1 moisture sensitivity and 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPPM | 18.2 V at 27.5 A - Clamped voltage during 500 W surge; directly limits stress on protected circuitry. |
| PPPM | 500 W - Peak pulse power handling with 10/1000 μs waveform; validates robustness against lightning or inductive switch-off events. |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports temporary fault-current exposure without failure. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive or industrial environments with minimal derating. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse voltage reference | Connected to lower-potential side of protected line; defines unidirectional conduction path. |
| Cathode (banded end) | Avalanche clamping node / surge return path | Connected to higher-potential rail (e.g., VCC or signal line); sinks surge current to ground or supply during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant construction | Meets environmental compliance requirements for automotive and industrial production without compromising surge robustness. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| Low incremental surge resistance | Enables tighter VC–IPPM relationship, reducing voltage overshoot during fast-rising transients. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking or special handling. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and chassis ground to clamp spikes up to ±100 V. Use Value: Limits clamped voltage to ≤18.2 V, preventing damage to 3.3 V/5 V microcontrollers and CAN transceivers downstream. |
Use Scenario: Safeguarding analog outputs of pressure or temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface to absorb 8 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1.0 μA leakage at 11 V preserves sensor offset accuracy; fast response (<1 ns) prevents latch-up in precision amplifiers. |
| Consumer DC Power Input Protection | Telecom Equipment Surge Suppression |
Use Scenario: Input stage protection for USB-C PD adapters and wall chargers subjected to AC line surges and hot-plug transients. IC Role / Device Role / Timing Role: Primary-level TVS on 5–20 V input rails, coordinated with upstream fuses and common-mode chokes. Use Value: 500 W rating handles 10/1000 μs surges per IEC 61000-4-5 Level 3; halogen-free material meets UL 94 V-0 flammability. |
Use Scenario: Secondary-side protection on Ethernet PHY power supplies and PoE injectors vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Unidirectional clamp on +3.3 V/+5 V bias rails feeding Gigabit PHYs and magnetics. Use Value: 18.2 V clamping ensures safe operation below 20 V absolute maximum ratings of Ethernet controllers and isolators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J11AHE3/I | Same electrical specs, but RoHS-compliant commercial grade (non-AEC-Q101); uses standard tin plating instead of halogen-free formulation. | Lacks automotive qualification; suitable for consumer/industrial designs where AEC-Q101 is not mandated. | Select SMA5J11AHE3/I when cost optimization is prioritized and automotive qualification is unnecessary. |
| SMCJ11A | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VWM/VC values; RθJA = 25 °C/W vs. 80 °C/W. | Requires more PCB area; better suited for high-energy surges where thermal dissipation is critical. | Choose SMCJ11A only when system-level surge tests exceed 500 W or board layout allows larger footprint. |
Compared with SMA5J11AHM3/I, SMA5J11AHE3/I offers identical protection performance without AEC-Q101 validation, while SMCJ11A trades compact size for higher surge capacity and lower thermal resistance-making SMA5J11AHM3/I optimal for space-constrained, automotive-qualified 500 W protection.
Availability
SMA5J11AHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer power adapter designs requiring stable component supply, halogen-free compliance, and AEC-Q101 assurance.
Supply support for SMA5J11AHM3/I 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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMA5J series targets high-density, high-reliability transient suppression in automotive and industrial systems, combining AEC-Q101 qualification, halogen-free materials, and optimized clamping for modern 12 V/24 V architectures.
FAQ
What is the clamping voltage of the SMA5J11AHM3/I under maximum rated surge current?
The SMA5J11AHM3/I has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current of 27.5 A using the standard 10/1000 μs waveform. This value is measured at TA = 25 °C on 5.0 mm × 5.0 mm copper pads and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA5J11AHM3/I maintains this clamping performance across its qualified operating temperature range.
Is the SMA5J11AHM3/I suitable for automotive applications?
Yes, the SMA5J11AHM3/I is AEC-Q101 qualified and specifically designated for automotive use, as confirmed by its HM3 suffix and documentation in Vishay's revision 09-Jan-2024 datasheet (document 88875). It meets stringent reliability, thermal, and surge requirements for engine control, body electronics, and ADAS subsystems. The SMA5J11AHM3/I also complies with halogen-free and RoHS directives required for modern vehicle platforms.
How does the SMA5J11AHM3/I differ from the SMA5J11A-E3/61 variant?
The SMA5J11AHM3/I differs from SMA5J11A-E3/61 in three key ways: it uses halogen-free molding compound (HM3), carries AEC-Q101 qualification (denoted by "H"), and ships in 13″ tape-and-reel packaging (suffix "I"). In contrast, SMA5J11A-E3/61 is RoHS-compliant but not halogen-free or automotive-qualified, and uses 7″ reels (suffix "61"). All electrical parameters-including VWM, VBR, and VC-are identical between SMA5J11AHM3/I and SMA5J11A-E3/61.
What is the maximum reverse leakage current for the SMA5J11AHM3/I at its stand-off voltage?
The SMA5J11AHM3/I exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated stand-off voltage (VWM) of 11 V and TA = 25 °C. This low leakage ensures minimal power loss and signal integrity impact in always-on circuits such as automotive wake-up lines or sensor bias networks. The SMA5J11AHM3/I maintains leakage below 5.0 μA up to 125 °C per thermal derating curves in the official datasheet.
Can the SMA5J11AHM3/I be used in bidirectional configurations?
No, the SMA5J11AHM3/I is a unidirectional TVS diode, as indicated by its "A" suffix (vs. "CA" for bidirectional variants like SMA5J11CA). Its cathode band marking and forward conduction capability confirm single-polarity operation. For bidirectional protection, engineers must select a CA-suffixed part-such as SMA5J11CA-which provides symmetrical clamping in both directions and no polarity marking. The SMA5J11AHM3/I is not rated or characterized for reverse-biased surge conduction.
SMA5J11AHM3/I 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:
- 1
- Bidirectional Channels:
- -
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J11AHM3/I FAQ
1.How can I place an order for SMA5J11AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J11AHM3/I 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 SMA5J11AHM3/I reliable?
The price and inventory of SMA5J11AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J11AHM3/I is usually 5 days.
3.What payment methods are accepted for SMA5J11AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J11AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J11AHM3/I?
SMA5J11AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J11AHM3/I 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 SMA5J11AHM3/I?
For technical support, including SMA5J11AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J11AHM3/I requirements.
6.How does Aetrix verify that SMA5J11AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMA5J11AHM3/I 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 SMA5J11AHM3/I meets industry standards.
7.What is the process for return or replacement of SMA5J11AHM3/I?
All SMA5J11AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J11AHM3/I, 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 SMA5J11AHM3/I part is unused and in its original packaging.
Return procedure for SMA5J11AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J11AHM3/I Tags
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