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Taiwan Semiconductor Corporation SMA6J11A R3G
- Part No.:
- SMA6J11A R3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J11A R3G.pdf
- Description:
- TVS DIODE 11VWM 17.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
SMA6J11A R3G from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a working standoff voltage of 11 V, breakdown voltage range 12.2–13.5 V at 1 mA, and clamping voltage of 17.2 V at 5.0 A peak pulse current; designed for surge protection in DC/DC converters and automotive power supplies.
For engineers reviewing the SMA6J11A R3G datasheet, SMA6J11A R3G pinout, SMA6J11A R3G application, or SMA6J11A R3G equivalent, key selection criteria include its DO-214AC (SMA) package, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, 1.0 ps typical response time, and 175°C maximum junction temperature.
Technical Context
This unidirectional TVS diode operates as a reverse-biased avalanche clamp, triggered when reverse voltage exceeds its breakdown threshold (VBR = 12.2–13.5 V). It delivers 600 W peak pulse power under the standardized 10/1000 µs waveform and maintains <1 µA leakage at 11 V working voltage.
Its glass-passivated junction ensures stable breakdown characteristics across -55°C to +175°C operating range, while the matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse voltage before significant leakage; defines safe operating DC bias level |
| VBR @ IT=1 mA | 12.2–13.5 V - Avalanche onset range; determines minimum overvoltage threshold for clamping activation |
| VC @ IPPM=5.0 A | 17.2 V - Clamped voltage during 10/1000 µs surge; limits downstream circuit stress |
| PPPM | 600 W - Peak surge power handling per single 10/1000 µs event; supports high-energy transients |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
| Response time | <1.0 ps - Sub-picosecond avalanche initiation; protects fast-edge digital and power circuits |
| Package | DO-214AC (SMA) - Standardized surface-mount outline with cathode band polarity marking |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two axial leads; cathode indicated by a band on the body; lead finish is matte tin, compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to system ground or lower-potential rail during normal operation; defines conduction direction |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., 12 V rail); conducts only during overvoltage events above VBR |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1, 2a, 2b, 3a, and 3b waveforms-enables direct use in automotive 12 V power networks |
| Glass-passivated junction | Stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement before reflow; simplifies SMT assembly logistics |
| Halogen-free construction | Complies with IEC 61249-2-21; meets environmental and flame-retardant requirements for industrial end equipment |
Applications
| Automotive Power Distribution | Industrial DC/DC Converters |
|---|---|
Use Scenario: Protection of 12 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and ground to clamp surges exceeding 13.5 V. Use Value: Limits clamped voltage to 17.2 V at 5 A, preventing damage to downstream 24 V-rated regulators and microcontrollers. | Use Scenario: Input-side surge suppression in isolated 48 V-to-12 V DC/DC modules used in factory automation controllers. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 10/1000 µs pulses induced by relay switching or motor commutation. Use Value: 600 W peak power rating sustains >1000 surge events without degradation, supporting 10-year field life. |
| LED Driver Power Inputs | USB-C PD Adapter Protection |
Use Scenario: Overvoltage protection on constant-current LED driver inputs exposed to lightning-induced surges in outdoor signage. IC Role / Device Role / Timing Role: Fast-response TVS shunting transient energy before it reaches primary-side MOSFETs and controller ICs. Use Value: Sub-1 ps response ensures clamping initiates before 10 ns rise-time transients propagate into sensitive analog feedback paths. | Use Scenario: Secondary-side transient suppression on 20 V PPS output rails of USB-C power delivery adapters. IC Role / Device Role / Timing Role: Clamp device placed after secondary rectifier to protect synchronous rectifier drivers and output capacitors. Use Value: 11 V VWM allows full 20 V PPS regulation margin while clamping to 17.2 V-within safe operating area of 25 V-rated output caps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J11AHE3_A/H (Vishay) | Same DO-214AC package; VBR = 12.2–13.5 V; VC = 17.2 V @ 5.0 A; RoHS/halogen-free | Identical ISO 7637-2 compliance; same 600 W rating; identical thermal derating curve | Select for dual-sourcing where Vishay's AEC-Q200 qualification is required alongside TSC's automotive-grade validation |
| P6SMB11A (ON Semiconductor) | DO-214AA (SMB) package; VBR = 12.2–13.5 V; VC = 18.2 V @ 5.0 A; 600 W rating | Larger footprint (SMB vs SMA); 1.0 V higher clamping voltage reduces margin for 12 V rail protection | Choose only if board layout accommodates SMB size and 18.2 V clamping remains within downstream IC absolute maximum ratings |
Compared with SMA6J11A R3G, the Vishay alternative offers identical electrical performance and automotive qualification path, while the ON Semiconductor part requires PCB redesign due to larger SMB package and yields 1.0 V higher clamping-reducing safety margin in 12 V systems.
Availability
SMA6J11A R3G is available at Aetrix Electronics and suitable for automotive electronics, industrial DC/DC converters, and LED lighting systems requiring stable component supply with full traceability and long-lifecycle support.
Supply support for SMA6J11A R3G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers, with global distribution and AEC-Q200-qualified product lines.
The SMA6JxxA series is engineered specifically for robust transient suppression in harsh automotive and industrial environments, emphasizing high surge immunity, tight VBR tolerance, and extended temperature reliability.
FAQ
What is the maximum clamping voltage of the SMA6J11A R3G under standard test conditions?
The SMA6J11A R3G has a maximum clamping voltage (VC) of 17.2 V when subjected to a 5.0 A peak pulse current with a 10/1000 µs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA6J11A R3G maintains this clamping performance across its specified operating temperature range.
Does the SMA6J11A R3G meet automotive transient immunity standards?
Yes, the SMA6J11A R3G meets ISO 7637-2 requirements for Pulse 1, 2a, 2b, 3a, and 3b, making it suitable for 12 V automotive power network protection. Its 600 W peak pulse power rating and sub-1 ps response time ensure reliable suppression of load dump and inductive switching transients. The SMA6J11A R3G is widely deployed in automotive ECUs and body control modules.
What is the moisture sensitivity level (MSL) of the SMA6J11A R3G?
The SMA6J11A R3G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry pack or baking prior to reflow soldering. This simplifies manufacturing flow and eliminates moisture-related popcorning risk during SMT assembly. The SMA6J11A R3G's MSL rating is verified through standardized preconditioning tests.
Can the SMA6J11A R3G be used in bidirectional configurations?
No, the SMA6J11A R3G is a unidirectional TVS diode intended for reverse-biased clamping only. Its electrical specifications-including breakdown voltage, clamping voltage, and leakage current-are defined for operation with cathode biased positive relative to anode. For bidirectional protection, a dedicated symmetric device such as SMA6J11CA must be selected instead of the SMA6J11A R3G.
What is the steady-state power dissipation rating for the SMA6J11A R3G?
The SMA6J11A R3G has a steady-state power dissipation (PD) rating of 4 W at TA = 25°C. This value applies to continuous DC or low-frequency reverse-bias conditions-not surge events. Derating is required above 25°C ambient, following the published pulse derating curve. The SMA6J11A R3G's thermal design must account for PCB copper area and airflow to maintain safe junction temperature.
SMA6J11A R3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J
- 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:
- 17.2V
- Current - Peak Pulse (10/1000µs):
- 24.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J11A R3G FAQ
1.How can I place an order for SMA6J11A R3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J11A R3G 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 R3G reliable?
The price and inventory of SMA6J11A R3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J11A R3G is usually 5 days.
3.What payment methods are accepted for SMA6J11A R3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J11A R3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J11A R3G?
SMA6J11A R3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J11A R3G 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 R3G?
For technical support, including SMA6J11A R3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J11A R3G requirements.
6.How does Aetrix verify that SMA6J11A R3G is sourced from the original manufacturer or authorized distributors?
All SMA6J11A R3G 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 R3G meets industry standards.
7.What is the process for return or replacement of SMA6J11A R3G?
All SMA6J11A R3G units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J11A R3G, 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 R3G part is unused and in its original packaging.
Return procedure for SMA6J11A R3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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