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Vishay General Semiconductor - Diodes Division SMA6J11AHM3/61
- Part No.:
- SMA6J11AHM3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J11AHM3/61.pdf
- Description:
- TVS DIODE 11VWM 17.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA6J11AHM3/61 from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in SMA (DO-214AC) package, with 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR at IT = 1 mA), 17.2 V maximum clamping voltage (VC at IPP = 34.8 A, 10/1000 μs), 600 W peak pulse power (10/1000 μs), and 4 W power dissipation at TA = 50 °C. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial and telecom power interfaces.
For engineers reviewing the SMA6J11AHM3/61 datasheet, SMA6J11AHM3/61 pinout, SMA6J11AHM3/61 application, or SMA6J11AHM3/61 equivalent, key selection criteria include verified clamping performance at 34.8 A surge current, unidirectional polarity confirmation, SMA package thermal resistance (RθJA = 120 °C/W), and compliance with J-STD-020 MSL level 1 reflow profile.
Technical Context
This device operates as a silicon avalanche diode designed for fast-response overvoltage clamping in DC power rails and low-speed signal paths. Its dynamic resistance (RD = 0.107 Ω) and temperature coefficient (αT = 8.1 × 10⁻⁴ /°C) directly govern clamping voltage stability across junction temperatures from –55 °C to +150 °C.
The SMA6J11AHM3/61 delivers 4000 W peak pulse power under 8/20 μs waveform-critical for lightning surge immunity-and maintains <1 μA leakage at VWM = 11 V, enabling low-power system standby integrity without excessive quiescent drain.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before significant leakage; sets safe DC rail margin for 12 V systems. |
| VBR min/max | 12.2 V / 13.5 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC at IPP | 17.2 V at 34.8 A (10/1000 μs) - Measured clamping voltage; defines worst-case voltage seen by protected IC during surge. |
| PPPM (10/1000 μs) | 600 W - Sustained energy-handling capability; validates protection against repetitive inductive switch-offs. |
| PD @ TA = 50 °C | 4 W - Steady-state power limit on PCB with 5.0 mm × 5.0 mm copper pads; informs thermal layout requirements. |
| IFSM | 50 A - Non-repetitive forward surge rating; supports brief fault-current exposure without bond-wire failure. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in sealed industrial enclosures with limited airflow. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional polarity with cathode band marking. Matte tin-plated leads, RoHS-compliant and halogen-free (M3 suffix), qualified per JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; forms clamping loop with cathode to protected line. |
| Cathode | Protected line connection | Connected to input rail or signal line being safeguarded; voltage clamps to VC when transient exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Clamping ratio (VC/VBR) | 1.41 (17.2 V / 12.2 V) - Tight ratio ensures minimal overvoltage overshoot during fast transients. |
| Dynamic resistance (RD) | 0.107 Ω - Low RD minimizes voltage rise under high di/dt surges, improving protection fidelity. |
| MSL level | Level 1 per J-STD-020 - Enables standard reflow without baking; supports high-yield automated assembly. |
| Leakage current | <1 μA at VWM = 11 V - Negligible standby power loss in battery-backed or low-quiescent systems. |
| Thermal resistance | RθJA = 120 °C/W - Predictable junction-to-ambient rise enables accurate thermal derating on standard FR-4. |
Applications
| Industrial Motor Drive Power Input | Telecom DSL Line Interface Protection |
|---|---|
|
Use Scenario: Suppresses voltage spikes from contactor coil de-energization and regenerative braking feedback on 12 V DC bus inputs. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient energy into ground return path before it reaches DC-DC converter input stage. Use Value: Limits peak voltage to ≤17.2 V during 34.8 A surges, preventing overvoltage lockout or gate oxide damage in downstream buck controllers. |
Use Scenario: Guards ADSL/VDSL line driver ICs against induced surges from nearby AC power crosstalk and lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Fast-acting avalanche clamp on differential line pair, referenced to local ground plane. Use Value: Clamps 8/20 μs surges up to 4000 W without degradation, preserving signal integrity below 30 MHz while meeting GR-1089-CORE lightning immunity. |
| Automotive Body Control Module (BCM) Sensor Inputs | Consumer Appliance Microcontroller Power Rail |
|
Use Scenario: Protects LIN bus transceivers and analog sensor front-ends (e.g., temperature, position) from load dump and ISO 7637-2 Pulse 1/2a transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between sensor supply line and chassis ground, absorbing negative-going transients. Use Value: Withstands 50 A IFSM and operates from –55 °C to +150 °C, ensuring reliability in under-hood environments without derating. |
Use Scenario: Shields 3.3 V or 5 V MCU core supply from ESD events and relay bounce on shared AC/DC adapter inputs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main VDD rail, upstream of LDO regulator. Use Value: Delivers <1 μA leakage at 11 V VWM, eliminating standby current penalty while clamping ESD to <20 V per IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J11A-E3/61 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3). | Approved for general industrial use where halogen-free mandate does not apply. | Select SMA6J11A-E3/61 if RoHS-only compliance suffices and halogen-free certification is not required. |
| SMBJ11A-M3/52 | Same VWM/VBR/VC ratings, but SMB (DO-214AA) package: larger footprint (4.58 mm × 3.94 mm vs. SMA's 4.32 mm × 2.62 mm) and higher RθJA (100 °C/W). | Better suited for higher-power layouts with larger copper areas; less space-constrained designs. | Choose SMBJ11A-M3/52 only when board real estate allows larger package and thermal budget permits higher junction rise. |
Compared with SMA6J11AHM3/61, the E3 variant offers identical protection performance with standard RoHS compliance, while the SMBJ11A-M3/52 trades compactness for marginally improved surge handling via larger thermal mass-neither is pin-compatible due to differing package outlines and pad layouts.
Availability
SMA6J11AHM3/61 is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, consumer appliance power rails, and sensor interface protection requiring stable component supply and halogen-free compliance.
Supply support for SMA6J11AHM3/61 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, and protection devices with emphasis on reliability, ruggedness, and application-specific validation.
The SMA6JxxA series is engineered for robust transient suppression in space-constrained, high-reliability DC power and signal line applications-designed to meet MIL-STD-750 and AEC-Q200 stress requirements where applicable.
FAQ
What is the clamping voltage of the SMA6J11AHM3/61 under a 10/1000 μs surge?
The SMA6J11AHM3/61 has a maximum clamping voltage (VC) of 17.2 V when subjected to a 10/1000 μs waveform at a peak pulse current (IPP) of 34.8 A. This value is measured and guaranteed per Vishay's datasheet revision 09-Jan-2024, Document Number 89460. The SMA6J11AHM3/61 achieves this clamping performance using its low dynamic resistance of 0.107 Ω and controlled avalanche characteristics.
Is the SMA6J11AHM3/61 halogen-free and RoHS-compliant?
Yes, the SMA6J11AHM3/61 is both halogen-free and RoHS-compliant, as confirmed by its "M3" suffix designation in the ordering code. Vishay specifies that M3 parts meet JESD 201 Class 2 whisker testing and comply with material restrictions defined in www.vishay.com/doc?99912. The SMA6J11AHM3/61 uses halogen-free molding compound and matte tin-plated leads.
What is the maximum operating temperature for the SMA6J11AHM3/61?
The SMA6J11AHM3/61 has a specified operating junction and storage temperature range of –55 °C to +150 °C. This rating is validated per the absolute maximum ratings table in the official datasheet. At TJ = 150 °C, the device maintains functional integrity under surge conditions, though derating of peak pulse power applies above TA = 25 °C per Figure 2.
Does the SMA6J11AHM3/61 support automated PCB assembly?
Yes, the SMA6J11AHM3/61 is optimized for automated placement with its low-profile SMA (DO-214AC) package and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. It meets MSL level 1 per J-STD-020, allowing exposure to ambient conditions indefinitely prior to reflow-no baking required before assembly. The SMA6J11AHM3/61 is supplied in 7" tape-and-reel format (package code 61).
How does the leakage current of the SMA6J11AHM3/61 compare at its stand-off voltage?
At its stand-off voltage (VWM = 11 V), the SMA6J11AHM3/61 exhibits a maximum reverse leakage current (ID) of 1 μA at TA = 25 °C. This ultra-low leakage ensures minimal power loss in always-on circuits and preserves battery life in portable or backup-powered systems. The SMA6J11AHM3/61 maintains this specification across its full operating temperature range, with leakage increasing predictably per datasheet thermal models.
SMA6J11AHM3/61 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 17.2V
- Current - Peak Pulse (10/1000µs):
- 34.8A
- Power - Peak Pulse:
- 600W
- 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)
SMA6J11AHM3/61 FAQ
1.How can I place an order for SMA6J11AHM3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J11AHM3/61 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 SMA6J11AHM3/61 reliable?
The price and inventory of SMA6J11AHM3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J11AHM3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J11AHM3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J11AHM3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J11AHM3/61?
SMA6J11AHM3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J11AHM3/61 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 SMA6J11AHM3/61?
For technical support, including SMA6J11AHM3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J11AHM3/61 requirements.
6.How does Aetrix verify that SMA6J11AHM3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J11AHM3/61 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 SMA6J11AHM3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J11AHM3/61?
All SMA6J11AHM3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J11AHM3/61, 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 SMA6J11AHM3/61 part is unused and in its original packaging.
Return procedure for SMA6J11AHM3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J11AHM3/61 Tags
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