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Taiwan Semiconductor Corporation SMA6J22AHR3G
- Part No.:
- SMA6J22AHR3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J22AHR3G.pdf
- Description:
- TVS DIODE 22VWM 34.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,992
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Product details
Overview
SMA6J22AHR3G from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a working standoff voltage of 22 V, breakdown voltage range 24.4–26.9 V at 1 mA, and clamping voltage of 34.5 V at 17.4 A peak pulse current under 10/1000 µs waveform-designed for surge protection in DC/DC converters and automotive power modules.
For engineers reviewing the SMA6J22AHR3G datasheet, SMA6J22AHR3G pinout, SMA6J22AHR3G application, or SMA6J22AHR3G 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 verified clamping performance at rated peak pulse power.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-1 ps response time and stable clamping under repetitive transients. Its single-die DO-214AC construction supports automated placement and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
The device operates across –55 °C to +175 °C junction temperature range, delivers 4 W steady-state power dissipation, and withstands 50 A non-repetitive forward surge current (8.3 ms half-sine), making it suitable for harsh-environment power rail protection where thermal robustness and fast transient suppression are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1 mA | 24.4–26.9 V - Verified breakdown threshold ensuring reliable turn-on during overvoltage events |
| VC @ IPPM=17.4 A | 34.5 V - Clamped voltage limiting downstream circuit stress during 10/1000 µs surge |
| PPPM | 600 W - Peak pulse power handling per standard 10/1000 µs waveform |
| TJ Range | –55 °C to +175 °C - Enables deployment in under-hood automotive and industrial power systems |
| IR @ VWM | 1.0 µA - Low leakage preserves efficiency in high-impedance bias networks |
| Package | DO-214AC (SMA) - Industry-standard SMD outline compatible with IPC-7351B land patterns |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case with matte tin-plated leads, cathode indicated by band, weight ≈ 0.060 g, UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or low-voltage rail in unidirectional clamp configuration |
| Cathode | Reverse-biased terminal / protected line connection | Connected to power rail or signal line requiring transient suppression; polarity marked by band |
Key Features
| Feature | Design Value |
|---|---|
| Clamping voltage stability | 34.5 V at 17.4 A ensures predictable voltage limiting during ISO 7637-2 Pulse 5a surges |
| Glass passivation | Enhances long-term reliability and humidity resistance in automotive-grade assemblies |
| Fast response time | <1.0 ps enables suppression of ESD and fast-rising load dump transients before IC damage occurs |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS directives for green manufacturing |
| Automated placement compatibility | Low-profile DO-214AC footprint supports high-speed pick-and-place without tombstoning |
Applications
| Automotive Power Rail Protection | Industrial DC/DC Converter Input |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump and jump-start transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC/DC input to clamp surges above 34.5 V. Use Value: Prevents overvoltage failure of upstream regulators and microcontrollers during 120 V/100 ms transients. | Use Scenario: Safeguarding isolated 48 V-to-12 V DC/DC converter inputs in factory automation controllers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side input, absorbing 600 W pulses without degradation. Use Value: Maintains system uptime by eliminating field failures caused by switching noise and inductive kickback. |
| LED Driver Power Stage | Telecom Power Supply Input |
Use Scenario: Surge suppression on constant-current LED driver inputs exposed to lightning-induced surges in outdoor signage. IC Role / Device Role / Timing Role: Front-end TVS absorbing 10/1000 µs line transients before they reach MOSFET gate drivers. Use Value: Extends LED system lifetime by preventing gate oxide rupture and driver IC latch-up. | Use Scenario: Input-stage protection for 48 V telecom rectifiers subjected to AC line transients and hot-swap events. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting surges to chassis ground while maintaining <1 µA leakage at nominal voltage. Use Value: Ensures uninterrupted operation during ANSI/IEEE C62.41 Category B transients up to 6 kV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J22AHE3/61 | Same electrical specs; differs only in tape-and-reel packaging (7,500 pcs vs. 3,000 pcs) and date code marking format | No functional difference; identical thermal and surge performance in PCB layout | Select when sourcing from Vishay's distribution channel with preferred reel size |
| P6SMB22A | 600 W rating, same VWM/VC, but larger DO-214AA (SMB) package (4.5 × 3.9 mm vs. 4.3 × 2.6 mm) | Requires PCB pad revision; higher thermal mass may slightly delay response vs. SMA6J22AHR3G | Choose if existing SMB footprint is fixed and board rework is prohibitive |
Compared with SMA6J22AHR3G, SMA6J22AHE3/61 offers identical protection performance with alternate packaging logistics, while P6SMB22A provides equivalent clamping but demands larger board area and exhibits marginally slower transient response due to higher junction capacitance.
Availability
SMA6J22AHR3G is available at Aetrix Electronics and suitable for automotive electronics, industrial DC/DC converters, and LED lighting systems requiring stable component supply and full traceability through production lifecycles.
Supply support for SMA6J22AHR3G 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 SMA6JxxA series was developed specifically for high-reliability transient suppression in space-constrained automotive and industrial power systems, emphasizing thermal resilience, ISO 7637-2 compliance, and automated assembly readiness.
FAQ
What is the maximum clamping voltage of SMA6J22AHR3G at its rated peak pulse current?
The SMA6J22AHR3G has a maximum clamping voltage (VC) of 34.5 V when subjected to its rated peak pulse current of 17.4 A under the standardized 10/1000 µs waveform. This value is measured and guaranteed per the Taiwan Semiconductor datasheet Rev. E2102 and defines the upper voltage limit imposed on protected circuits during surge events.
Does SMA6J22AHR3G meet automotive surge immunity standards?
Yes, SMA6J22AHR3G meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements for transient immunity in automotive electronic modules. Its 600 W peak pulse power rating and verified clamping behavior under defined waveforms make it suitable for 12 V and 24 V vehicle power network protection per OEM specifications.
What is the junction temperature range for SMA6J22AHR3G?
The SMA6J22AHR3G supports an operating junction temperature range of –55 °C to +175 °C, enabling use in under-hood automotive environments and high-temperature industrial enclosures. This rating is validated per absolute maximum ratings in the official Taiwan Semiconductor datasheet and confirmed across all production lots.
Is SMA6J22AHR3G RoHS and halogen-free compliant?
Yes, SMA6J22AHR3G is fully RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm, satisfying both EU regulatory mandates and major OEM green material requirements.
What does the "HR3G" suffix indicate in SMA6J22AHR3G?
The "HR3G" suffix in SMA6J22AHR3G denotes Taiwan Semiconductor's standard tape-and-reel packaging: "H" = halogen-free, "R3" = 3,000-piece reel quantity, and "G" = green compound (RoHS-compliant epoxy). This matches the ordering code definition in the official datasheet's Ordering Information section.
SMA6J22AHR3G 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 34.5V
- Current - Peak Pulse (10/1000µs):
- 17.4A
- 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)
SMA6J22AHR3G FAQ
1.How can I place an order for SMA6J22AHR3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J22AHR3G 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 SMA6J22AHR3G reliable?
The price and inventory of SMA6J22AHR3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J22AHR3G is usually 5 days.
3.What payment methods are accepted for SMA6J22AHR3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J22AHR3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J22AHR3G?
SMA6J22AHR3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J22AHR3G 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 SMA6J22AHR3G?
For technical support, including SMA6J22AHR3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J22AHR3G requirements.
6.How does Aetrix verify that SMA6J22AHR3G is sourced from the original manufacturer or authorized distributors?
All SMA6J22AHR3G 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 SMA6J22AHR3G meets industry standards.
7.What is the process for return or replacement of SMA6J22AHR3G?
All SMA6J22AHR3G units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J22AHR3G, 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 SMA6J22AHR3G part is unused and in its original packaging.
Return procedure for SMA6J22AHR3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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