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Vishay General Semiconductor - Diodes Division SMA6J11A-M3/61
- Part No.:
- SMA6J11A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J11A-M3/61.pdf
- Description:
- TVS DIODE 11VWM 17.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,354
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Product details
Overview
SMA6J11A-M3/61 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 rating, and 150 °C maximum junction temperature. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in industrial and telecom power interfaces.
For engineers reviewing the SMA6J11A-M3/61 datasheet, SMA6J11A-M3/61 pinout, SMA6J11A-M3/61 application, or SMA6J11A-M3/61 equivalent, key selection criteria include clamping voltage margin relative to protected device VDS/VDD, unidirectional polarity compatibility with DC-biased lines, thermal resistance (RθJA = 120 °C/W), and M3 halogen-free RoHS compliance for industrial-grade PCB assembly.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream components. Its dynamic resistance (RD = 0.107 Ω) and low clamping ratio (VC/VBR ≈ 1.41) ensure tight overvoltage control during 10/1000 μs transients.
Designed for PCB-level protection of DC power rails and low-speed signal lines, it features MSL Level 1 moisture sensitivity, matte tin-plated leads compliant with J-STD-002, and a cathode band marking for unambiguous polarity orientation on automated placement lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before leakage rises; sets upper limit for protected line DC bias. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - Breakdown onset range; defines minimum overvoltage threshold for clamping activation. |
| VC at IPP | 17.2 V at 34.8 A (10/1000 μs) - Clamped voltage under standard surge; must stay below protected device's absolute max rating. |
| PPPM (10/1000 μs) | 600 W - Peak surge energy handling capacity; determines survivability against common inductive load spikes. |
| ID at VWM | 1 μA max - Reverse leakage at stand-off voltage; ensures minimal quiescent power loss in always-on circuits. |
| RθJA | 120 °C/W - Junction-to-ambient thermal resistance on 5.0 mm × 5.0 mm copper pads; governs derating above 50 °C ambient. |
| Polarity | Unidirectional - Blocks reverse conduction only; requires correct orientation relative to DC rail polarity. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with UL 94 V-0 flammability rating and cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge current sink (in reverse bias) | Connected to lower-potential side of protected line; carries full IPP during clamping event. |
| Cathode | Forward current exit / Surge current source (in reverse bias) | Connected to higher-potential side (e.g., VCC rail); marked by color band for assembly verification. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IEC 61249-2-21 and JESD201 Class 2 whisker resistance; suitable for industrial-grade environmental compliance. |
| MSL Level 1 rating | Reflow-compatible up to 260 °C peak without baking; enables direct placement into high-volume SMT lines. |
| Low dynamic resistance (RD) | 0.107 Ω - Minimizes voltage overshoot during fast-rising transients and improves clamping precision. |
| High IPP capability | 34.8 A (10/1000 μs) - Supports robust protection of 12 V automotive and industrial power rails per IEC 61000-4-5. |
| Stable VBR vs. temperature | αT = 8.1 × 10⁻⁴ /°C - Predictable breakdown shift across -55 °C to +150 °C; simplifies worst-case margining. |
Applications
| Industrial Motor Drive Power Supply | Automotive Body Control Module (BCM) Inputs |
|---|---|
Use Scenario: Protects 12 V DC input stage of motor driver ICs from back-EMF spikes generated by relay or solenoid coil de-energization. IC Role / Device Role / Timing Role: Shunt TVS placed directly across input capacitor, clamping transients within 1 ns response time. Use Value: Limits voltage excursion to ≤17.2 V, preventing latch-up or gate oxide damage in integrated half-bridge drivers. |
Use Scenario: Shields microcontroller GPIOs and LIN bus transceivers from load dump and jump-start surges in vehicle body electronics. IC Role / Device Role / Timing Role: Unidirectional clamp on 12 V supply rail upstream of LDO regulators feeding MCU peripherals. Use Value: Withstands 4000 W (8/20 μs) surge events while maintaining <1 μA leakage at nominal 12 V system voltage. |
| Telecom DSL Line Interface Protection | Consumer Appliance Sensor Signal Conditioning |
Use Scenario: Safeguards ADSL/VDSL line driver ICs from lightning-induced surges coupled onto twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary protection device mounted at board edge, preceding gas discharge tube secondary stage. Use Value: Provides sub-20 V clamping with 600 W rating to meet GR-1089-CORE Level 3 surge immunity requirements. |
Use Scenario: Guards analog outputs of temperature/humidity sensors in smart home appliances against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) unidirectional TVS on 3.3 V or 5 V analog output traces. Use Value: Delivers 15 kV air-gap ESD protection (IEC 61000-4-2) without distorting millivolt-level sensor signals due to low leakage and stable VBR. |
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 suffix meets JESD201 Class 2 whisker test. | No difference in circuit function or layout; differs only in material compliance profile. | Select E3 for cost-sensitive industrial designs where halogen-free is not mandated. |
| SMBJ11A-M3 | Same VWM/VBR/VC ratings; SMB (DO-214AA) package has larger pad area (RθJA = 85 °C/W vs. 120 °C/W) and higher 1000 W PPPM rating. | Better thermal performance and surge margin; requires larger PCB footprint and different land pattern. | Choose SMBJ11A-M3 when higher power handling or improved thermal dissipation is required and board space permits. |
Compared with SMA6J11A-M3/61, the E3 variant offers identical protection performance with standard RoHS compliance, while SMBJ11A-M3 delivers superior thermal and surge capability in a larger package-enabling longer lifetime under repeated transient stress without layout redesign.
Availability
SMA6J11A-M3/61 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom line interface protection requiring stable component supply, halogen-free compliance, and MSL Level 1 reflow readiness.
Supply support for SMA6J11A-M3/61 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 efficiency, and industrial-grade qualification.
The SMA6JxxA series is part of Vishay's TransZORB® TVS platform, engineered specifically for robust, low-profile PCB-level transient suppression in harsh environments including automotive, industrial automation, and communications infrastructure.
FAQ
What is the maximum clamping voltage of the SMA6J11A-M3/61 under a 10/1000 μs surge?
The SMA6J11A-M3/61 has a maximum clamping voltage (VC) of 17.2 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 34.8 A. This value is measured per JEDEC standards and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 89460. The SMA6J11A-M3/61 maintains this clamping performance across its specified operating temperature range.
Is SMA6J11A-M3/61 suitable for bidirectional signal line protection?
No, SMA6J11A-M3/61 is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts in reverse bias above VBR but blocks forward current beyond VF ≈ 3.5 V at 25 A. For bidirectional protection (e.g., AC lines or data buses), a symmetric TVS like SMBJ11CA-M3 or dedicated bidirectional array must be used instead of SMA6J11A-M3/61.
What does the "M3" suffix indicate in SMA6J11A-M3/61?
The "M3" suffix in SMA6J11A-M3/61 denotes halogen-free, RoHS-compliant construction meeting IEC 61249-2-21 and JESD201 Class 2 whisker resistance requirements. It also signifies industrial-grade qualification, distinguishing it from the E3 variant which is RoHS-compliant but not halogen-free. Both share identical electrical characteristics and SMA package dimensions.
Can SMA6J11A-M3/61 be used in automotive applications requiring AEC-Q200 qualification?
No, SMA6J11A-M3/61 is not AEC-Q200 qualified. Vishay specifies it for industrial-grade use only. While it meets key automotive surge standards (e.g., ISO 7637-2 Pulse 1/2a/3a, IEC 61000-4-5), its qualification level is industrial-not automotive. For AEC-Q200-compliant alternatives, consider Vishay's Automotive Grade SMA6J11AHE3/61 or equivalent qualified variants.
What is the thermal resistance and how does it affect layout for SMA6J11A-M3/61?
The SMA6J11A-M3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's datasheet. Larger copper areas reduce RθJA, improving surge endurance; insufficient copper increases junction temperature rise during repetitive transients, potentially accelerating degradation of the SMA6J11A-M3/61.
SMA6J11A-M3/61 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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J11A-M3/61 FAQ
1.How can I place an order for SMA6J11A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J11A-M3/61 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 SMA6J11A-M3/61 reliable?
The price and inventory of SMA6J11A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J11A-M3/61 is usually 5 days.
3.What payment methods are accepted for SMA6J11A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J11A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J11A-M3/61?
SMA6J11A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J11A-M3/61 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 SMA6J11A-M3/61?
For technical support, including SMA6J11A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J11A-M3/61 requirements.
6.How does Aetrix verify that SMA6J11A-M3/61 is sourced from the original manufacturer or authorized distributors?
All SMA6J11A-M3/61 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 SMA6J11A-M3/61 meets industry standards.
7.What is the process for return or replacement of SMA6J11A-M3/61?
All SMA6J11A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J11A-M3/61, 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 SMA6J11A-M3/61 part is unused and in its original packaging.
Return procedure for SMA6J11A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA6J11A-M3/61 Tags
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