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Taiwan Semiconductor Corporation SMA6J11AHR3G
- Part No.:
- SMA6J11AHR3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J11AHR3G.pdf
- Description:
- TVS DIODE 11VWM 17.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,955
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Product details
Overview
SMA6J11AHR3G 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 A peak pulse current; designed for surge protection in DC/DC converters and automotive power modules.
For engineers reviewing the SMA6J11AHR3G datasheet, SMA6J11AHR3G pinout, SMA6J11AHR3G application, or SMA6J11AHR3G equivalent, key selection criteria include its DO-214AC (SMA) package, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, 175°C max junction temperature, and 1.0 ps typical response time-critical for robust ESD and load-dump immunity in embedded power systems.
Technical Context
This unidirectional TVS diode operates as a reverse-biased avalanche clamp, activated when reverse voltage exceeds VBR (12.2–13.5 V). It delivers 600 W peak pulse power under 10/1000 µs waveform and limits transient-induced voltage to ≤17.2 V at 5 A IPPM.
Its glass-passivated junction ensures stable breakdown characteristics across -55°C to +175°C operating range, while matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements-enabling reliable reflow assembly in high-reliability industrial and automotive PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1 mA | 12.2–13.5 V - Confirmed breakdown threshold ensuring precise overvoltage triggering |
| VC @ IPPM=5 A | 17.2 V - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 600 W - Peak pulse power handling per ISO 7637-2 Pulse 5a (load dump) |
| Junction Temp Range | -55°C to +175°C - Enables operation in under-hood automotive and industrial power environments |
| Package | DO-214AC (SMA) - Standardized surface-mount footprint compatible with automated placement and IPC-7351B land patterns |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with cathode band marking polarity; 2-terminal unidirectional configuration; lead finish: matte tin; weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-impedance ground return during clamping | Connected to system ground or low-side reference; carries full surge current during transient events |
| Cathode | Protected line input / high-side connection to supply rail | Connected to the line being protected (e.g., 12 V battery rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Fast response time | Typically <1.0 ps - Ensures clamping activation before sensitive downstream circuitry sustains damage |
| ISO 7637-2 compliance | Covers Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect/connect), Pulse 3a/3b (switching transients) - Validated for automotive ECU power inputs |
| Glass passivated junction | Stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| Moisture sensitivity level | MSL Level 1 (per J-STD-020) - No floor life limitation; safe for standard SMT reflow without dry-pack requirement |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Input Stage |
|---|---|
Use Scenario: Protects microcontroller power rails from load-dump transients during vehicle alternator regulation failure. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V battery feed and LDO input, clamping surges within 1 ps. Use Value: Limits voltage to ≤17.2 V at 5 A, preventing latch-up or permanent damage to 5 V/3.3 V regulators and MCU IO cells. | Use Scenario: Shields isolated flyback controller ICs from switching noise and input line surges in factory automation power supplies. IC Role / Device Role / Timing Role: Primary-side TVS on DC input bus, absorbing repetitive 10/1000 µs pulses up to 600 W. Use Value: Maintains system uptime by preventing reset events or gate-driver misfiring caused by >20 V transients on 24 V input rails. |
| LED Driver Power Input | USB-C PD Adapter Secondary Side |
Use Scenario: Guards constant-current LED driver ICs against inductive kickback from relay-controlled lighting loads. IC Role / Device Role / Timing Role: Reverse-biased clamp across input capacitor, conducting only during >12.2 V transients. Use Value: Extends LED module lifetime by eliminating voltage overshoot that degrades electrolytic bulk capacitors and MOSFETs. | Use Scenario: Suppresses fast-rising ESD and ringwave events on secondary-side 5–20 V output lines of USB-C PD adapters. IC Role / Device Role / Timing Role: Output-stage TVS referenced to common-mode ground, clamping differential and common-mode surges. Use Value: Enables UL 62368-1 and IEC 61000-4-2 Level 4 compliance without adding ferrite beads or RC snubbers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J11AHE3/73 (Vishay) | Same DO-214AC package, identical VWM/VBR/VC specs, but rated for 150°C TJMAX (vs. 175°C) | Limited to underhood ambient ≤125°C; not qualified for extended-temperature engine control units | Select when cost sensitivity outweighs extended thermal margin needs |
| P6SMB11A (ON Semiconductor) | Same 11 V VWM, but lower PPPM = 600 W only at 10/1000 µs; no ISO 7637-2 documentation provided | Requires additional validation for automotive load-dump immunity; suitable for commercial-grade SMPS only | Choose for non-automotive industrial use where ISO compliance is not mandated |
Compared with SMA6J11AHR3G, SMA6J11AHE3/73 offers identical electrical performance but reduced thermal headroom, while P6SMB11A lacks documented automotive surge compliance-making SMA6J11AHR3G the preferred choice for AEC-Q101-aligned designs requiring guaranteed 175°C operation and ISO 7637-2 coverage.
Availability
SMA6J11AHR3G is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC/DC converters, LED driver protection, and USB-C PD adapter designs requiring stable component supply and full automotive-grade surge immunity.
Supply support for SMA6J11AHR3G 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power MOSFETs for industrial and automotive markets.
The SMA6JxxA series was developed specifically for high-energy transient suppression in automotive power distribution networks and industrial power supplies, emphasizing ISO 7637-2 compliance, MSL Level 1 handling, and extended temperature reliability.
FAQ
What is the maximum clamping voltage of SMA6J11AHR3G at 5 A peak pulse current?
The SMA6J11AHR3G has a maximum clamping voltage (VC) of 17.2 V when subjected to a 5 A peak pulse current under the standard 10/1000 µs waveform. This value is measured per the manufacturer's test conditions and ensures downstream components remain within safe operating voltage limits during surge events. The SMA6J11AHR3G achieves this clamping performance while maintaining low leakage (<1 µA at 11 V) during normal operation.
Is SMA6J11AHR3G compliant with automotive surge immunity standards?
Yes, SMA6J11AHR3G meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery connection/disconnection), and Pulse 3a/3b (capacitive switching transients). Its 600 W peak pulse rating and 175°C junction temperature rating make it suitable for AEC-Q101-aligned automotive applications including body control modules and power distribution units. The SMA6J11AHR3G datasheet explicitly references ISO 7637-2 compliance in its features table.
What is the package type and mounting compatibility of SMA6J11AHR3G?
SMA6J11AHR3G uses the DO-214AC (SMA) surface-mount package with standardized dimensions and matte tin-plated leads compliant with J-STD-002 solderability. It supports standard reflow profiles and is compatible with IPC-7351B land patterns. The cathode band provides unambiguous polarity identification, and its MSL Level 1 rating allows indefinite floor storage without dry packing-ideal for high-volume automated assembly of SMA6J11AHR3G into automotive and industrial PCBs.
Does SMA6J11AHR3G support bidirectional transient suppression?
No, SMA6J11AHR3G is a unidirectional TVS diode intended for DC line protection where polarity is fixed. It conducts only during reverse overvoltage events above its breakdown voltage (12.2–13.5 V), with anode tied to ground and cathode to the protected line. For AC or bidirectional signal line protection, a different device such as a bidirectional SMA6J11CA would be required-not the SMA6J11AHR3G.
What is the steady-state power dissipation rating for SMA6J11AHR3G?
The SMA6J11AHR3G has a steady-state power dissipation (PD) rating of 4 W at 25°C ambient temperature. This rating applies to continuous DC power dissipation under non-transient conditions and is significantly lower than its 600 W peak pulse capability. Designers must ensure average power in normal operation remains well below 4 W-typically achieved by using SMA6J11AHR3G only for infrequent surge events, not sustained overvoltage conditions.
SMA6J11AHR3G 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J11AHR3G FAQ
1.How can I place an order for SMA6J11AHR3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J11AHR3G 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 SMA6J11AHR3G reliable?
The price and inventory of SMA6J11AHR3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J11AHR3G is usually 5 days.
3.What payment methods are accepted for SMA6J11AHR3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J11AHR3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J11AHR3G?
SMA6J11AHR3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J11AHR3G 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 SMA6J11AHR3G?
For technical support, including SMA6J11AHR3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J11AHR3G requirements.
6.How does Aetrix verify that SMA6J11AHR3G is sourced from the original manufacturer or authorized distributors?
All SMA6J11AHR3G 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 SMA6J11AHR3G meets industry standards.
7.What is the process for return or replacement of SMA6J11AHR3G?
All SMA6J11AHR3G units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J11AHR3G, 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 SMA6J11AHR3G part is unused and in its original packaging.
Return procedure for SMA6J11AHR3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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