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Taiwan Semiconductor Corporation SMA6J11AH
- Part No.:
- SMA6J11AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J11AH.pdf
- Description:
- TVS DIODE 11VWM 17.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,163
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Product details
Overview
SMA6J11AH from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a working stand-off voltage of 11 V, breakdown voltage range 12.2–13.5 V, and clamping voltage of 17.2 V at 5.0 A peak pulse current; designed for automotive-grade surge protection in DC/DC converters and power adapters.
For engineers reviewing the SMA6J11AH datasheet, SMA6J11AH pinout, SMA6J11AH application, or SMA6J11AH equivalent, key selection criteria include its AEC-Q101 qualification, DO-214AC (SMA) package, 10/1000 µs waveform rating, ISO 7637-2 compliance, and low-profile automated placement capability.
Technical Context
This unidirectional TVS diode uses a glass-passivated junction to achieve fast response time (<1.0 ps) and stable clamping under repetitive transients. Its single-die configuration in DO-214AC supports reverse-biased operation with cathode-band polarity marking.
The device operates across –55°C to +175°C junction temperature and delivers 600 W peak pulse power per 10/1000 µs waveform while maintaining <1 µA reverse leakage at 11 V and 17.2 V clamping at 5.0 A IPPM - critical for robustness in automotive and industrial power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 12.2 V / 13.5 V at 1 mA - guaranteed breakdown threshold for reliable turn-on during surges |
| VC @ IPPM | 17.2 V at 5.0 A - clamped voltage limiting downstream circuit stress during 10/1000 µs transients |
| PPPM | 600 W - peak pulse power handling capacity per standard 10/1000 µs waveform |
| TJ max | +175 °C - extended thermal operating limit enabling under-hood automotive deployment |
| IR @ VWM | <1 µA - minimal leakage ensuring low standby power loss in always-on systems |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicating band; 2-terminal unidirectional configuration optimized for high-density PCB layouts and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return plane during transient clamping |
| Cathode | Reverse-biased input / protected line connection | Connected to the line being protected (e.g., 12 V rail); marked by band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control, body modules, and infotainment power supplies |
| Glass passivated junction | Enhanced reliability and moisture resistance vs. epoxy-passivated alternatives in humid environments |
| ISO 7637-2 compliant (Pulse 1/2a/2b/3a/3b) | Meets full suite of automotive transient immunity requirements without external filtering |
| Moisture sensitivity level 1 | No baking required prior to SMT assembly - reduces manufacturing overhead and risk of popcorning |
| Halogen-free & RoHS compliant | Complies with IEC 61249-2-21 and EU RoHS directives for environmentally regulated markets |
Applications
| Automotive Power Rail Protection | Industrial DC/DC Converter Input |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges within safe limits. Use Value: Limits clamped voltage to 17.2 V at 5 A, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Safeguarding isolated DC/DC converter primary-side inputs in factory automation controllers. IC Role / Device Role / Timing Role: Standoff protector absorbing switching-induced spikes and ESD events on 24 V input rails. Use Value: 600 W peak power rating handles repetitive 10/1000 µs surges without degradation over 10+ year service life. |
| LED Driver Supply Line | USB-C Power Delivery Adapter |
Use Scenario: Suppressing inductive kickback and lightning-induced surges on constant-current LED driver inputs. IC Role / Device Role / Timing Role: Fast-response (<1 ps) TVS shunting transient energy before it reaches PWM controller ICs. Use Value: Low 11 V VWM ensures compatibility with 12 V nominal lighting systems while maintaining margin above operating voltage. | Use Scenario: Secondary-side overvoltage protection in compact AC/DC adapters supporting USB-C PD 3.0 protocols. IC Role / Device Role / Timing Role: Clamping device on 5–20 V output rails to prevent fault propagation during cable hot-plug events. Use Value: DO-214AC footprint enables high-density layout; halogen-free construction meets end-product environmental certifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J11A | Same electrical specs but not AEC-Q101 qualified; no ISO 7637-2 validation | Restricted to commercial/industrial use; unsuitable for automotive OEM designs | Select only if automotive qualification is unnecessary and cost is prioritized |
| SMB6J11A | Same VWM/VBR/VC but in larger DO-214AA (SMB) package; 1.0 mm higher profile | Requires PCB pad revision; less suitable for ultra-thin adapter or module designs | Choose when higher thermal mass is needed or existing SMB footprint exists |
Compared with SMA6J11A and SMB6J11A, the SMA6J11AH uniquely combines AEC-Q101 qualification, ISO 7637-2 compliance, and DO-214AC's low-profile form factor - making it the only option qualified for space-constrained automotive front-end protection without layout or reliability trade-offs.
Availability
SMA6J11AH is available at Aetrix Electronics and suitable for automotive power management, industrial DC/DC converters, LED driver protection, and USB-C adapter designs requiring stable component supply and long-term lifecycle support.
Supply support for SMA6J11AH 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, serving global automotive, industrial, and consumer markets since 1979.
The SMA6JxxAH series is part of TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in automotive power distribution networks and harsh-environment industrial power supplies.
FAQ
What is the clamping voltage of the SMA6J11AH at its rated peak pulse current?
The SMA6J11AH has a maximum clamping voltage (VC) of 17.2 V at 5.0 A peak pulse current (IPPM), measured under the standard 10/1000 µs waveform. This value ensures downstream components remain within safe operating voltage limits during surge events. The SMA6J11AH's clamping performance is validated per JEDEC standards and forms the basis for system-level surge immunity design.
Is the SMA6J11AH suitable for automotive applications?
Yes, the SMA6J11AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity requirements. Its –55°C to +175°C operating junction temperature range and glass-passivated junction make it suitable for under-hood and body-control module deployments. The SMA6J11AH is designed for automotive-grade reliability.
What package type does the SMA6J11AH use, and what are its mounting characteristics?
The SMA6J11AH uses the DO-214AC (SMA) surface-mount package - a low-profile, 2-terminal case with cathode band marking. It supports automated pick-and-place and reflow soldering per J-STD-002, with matte tin-plated leads and JESD201 Class 2 whisker resistance. The SMA6J11AH weighs approximately 0.060 g and fits standard SMA footprint pads.
How does the SMA6J11AH differ from the non-H suffix variant SMA6J11A?
The SMA6J11AH differs from SMA6J11A primarily in qualification and testing: SMA6J11AH is AEC-Q101 qualified and ISO 7637-2 validated, whereas SMA6J11A lacks those certifications. Both share identical electrical parameters (VWM = 11 V, VC = 17.2 V), but only SMA6J11AH is approved for automotive OEM use. The "H" suffix denotes the automotive-grade version of the SMA6J11AH.
What is the maximum steady-state power dissipation for the SMA6J11AH?
The SMA6J11AH 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 - distinct from its 600 W peak pulse power rating under transient conditions. Derating is required above 25°C ambient per the pulse derating curve in the official datasheet. Thermal design must account for PCB copper area and airflow.
SMA6J11AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J
- 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):
- 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)
SMA6J11AH FAQ
1.How can I place an order for SMA6J11AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J11AH 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 SMA6J11AH reliable?
The price and inventory of SMA6J11AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J11AH is usually 5 days.
3.What payment methods are accepted for SMA6J11AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J11AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J11AH?
SMA6J11AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J11AH 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 SMA6J11AH?
For technical support, including SMA6J11AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J11AH requirements.
6.How does Aetrix verify that SMA6J11AH is sourced from the original manufacturer or authorized distributors?
All SMA6J11AH 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 SMA6J11AH meets industry standards.
7.What is the process for return or replacement of SMA6J11AH?
All SMA6J11AH units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J11AH, 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 SMA6J11AH part is unused and in its original packaging.
Return procedure for SMA6J11AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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