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Vishay General Semiconductor - Diodes Division TA6L22AHM3/I
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- Part No.:
- TA6L22AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L22AHM3/I.pdf
- Description:
- 600W,22V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,368
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Product details
Overview
TA6L22AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMAW (DO-221AD) package, designed for automotive-grade overvoltage protection. It features 22.0 V nominal breakdown voltage (VBR), 18.8 V maximum standoff voltage (VWM), 600 W peak pulse power (10/1000 µs), 19.6 A peak pulse current, and 30.6 V maximum clamping voltage at rated current - deployed on signal lines of automotive sensor units to suppress inductive switching transients.
For engineers reviewing the TA6L22AHM3/I datasheet, TA6L22AHM3/I pinout, TA6L22AHM3/I application, or TA6L22AHM3/I equivalent, this page delivers verified electrical parameters, thermal limits (TJ = −65 °C to +185 °C), AEC-Q101 qualification status, SlimSMAW mechanical dimensions, and direct alternative part comparisons for robust automotive circuit protection design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation. Its unidirectional configuration provides low-leakage reverse blocking up to 18.8 V and precise clamping at 30.6 V under 19.6 A surge, enabling effective protection of downstream ICs and MOSFETs against ISO 7637-2 and IEC 61000-4-5 compliant transients.
Rated for continuous operation up to TJ = 185 °C and qualified per AEC-Q101, the TA6L22AHM3/I supports automotive under-hood applications where thermal stability and whisker resistance (JESD 201 Class 2) are mandatory. The HM3 suffix confirms halogen-free, RoHS-compliant construction and MSL Level 1 moisture sensitivity rating (260 °C reflow peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - ensures reliable conduction onset above system operating voltage while avoiding false triggering |
| VWM | 18.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA, compatible with 12 V automotive supply rails |
| IPPM | 19.6 A - peak surge current capability under 10/1000 µs waveform, sufficient for load-dump and inductive kick suppression |
| VC | 30.6 V - clamping voltage at IPPM, limiting stress on protected ICs during transient events |
| TJ max. | +185 °C - enables placement near high-temperature engine control modules without derating |
| Package | SlimSMAW (DO-221AD) - low-profile SMD footprint (5.0 × 3.6 mm) with cathode band marking and 2 oz. FR4 thermal performance |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD per JESD47 |
Pinout & Package
SlimSMAW (DO-221AD) is a two-terminal surface-mount package with cathode marked by a color band on the top surface. Anode and cathode terminals are located on opposite ends of the molded body; polarity must be observed during PCB layout to ensure correct unidirectional clamping behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage return path; defines current flow direction during clamping |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., sensor output); conducts surge current to ground when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Enables precise overvoltage protection on DC-biased signal lines without affecting normal forward operation |
| 185 °C junction rating | Supports mounting in high-temperature zones (e.g., near ECUs or powertrain controllers) without thermal derating |
| AEC-Q101 qualification + JESD 201 Class 2 | Validated for automotive use with whisker-resistant matte tin plating and extended reliability testing |
| 600 W peak pulse power (10/1000 µs) | Handles severe transients such as ISO 7637-2 Pulse 5a (load dump) in 12 V systems |
| Low-profile SlimSMAW package | Reduces board space vs. SMA/SMB while maintaining thermal performance via optimized copper pad layout |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to inductive switching noise in engine bays. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at sensor connector interface to clamp fast-rising spikes before reaching ADC inputs. Use Value: Prevents latch-up or damage to 12-bit automotive-grade ADCs by limiting voltage to ≤30.6 V during 19.6 A surges. | Use Scenario: Safeguarding microcontroller GPIO and CAN transceiver inputs in engine control modules subjected to load-dump events. IC Role / Device Role / Timing Role: Primary front-end clamping device on 5 V or 3.3 V supply rails and signal paths entering the ECU housing. Use Value: Maintains functional safety integrity by suppressing transients up to 600 W without degradation across −40 °C to +150 °C ambient. |
| Body Control Module (BCM) Signal Lines | Electric Power Steering (EPS) Feedback Circuits |
Use Scenario: Shielding LIN bus and switch-input monitoring circuits in door modules and lighting control units from battery reversal and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between connector and level-shifter IC to absorb reverse-polarity energy and ESD. Use Value: Achieves <1 μA leakage at 18.8 V, preserving low-power sleep mode current budgets in BCM standby states. | Use Scenario: Protecting resolver-to-digital converter (RDC) feedback paths and motor phase sensing lines in EPS systems. IC Role / Device Role / Timing Role: High-temperature-stable clamping element mounted adjacent to motor driver ICs to handle commutation-induced transients. Use Value: Operates reliably at TJ = 185 °C, eliminating need for thermal derating in compact EPS enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/5A (Vishay) | Same VBR (22 V), but SMA package (DO-214AC); RθJA = 150 °C/W vs. 120 °C/W for TA6L22AHM3/I | Higher thermal resistance limits power handling in high-density layouts; not AEC-Q101 qualified | Select when cost or legacy footprint compatibility outweighs automotive qualification and thermal performance needs |
| TPSMA6L22A (Texas Instruments) | Identical VBR/VWM/VC specs and SlimSMAW package; AEC-Q101 qualified; TJ max = 175 °C (vs. 185 °C) | Slightly lower max junction temperature reduces margin in extreme under-hood environments | Choose for TI-design ecosystems where supply chain alignment and SPICE model availability are prioritized |
Compared with SMAJ22A-E3/5A and TPSMA6L22A, the TA6L22AHM3/I offers superior thermal robustness (185 °C TJ max, 120 °C/W RθJA) and full AEC-Q101 + JESD 201 Class 2 compliance - making it the preferred choice for next-generation automotive modules requiring extended lifetime at elevated temperatures.
Availability
TA6L22AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, engine control unit (ECU) input safeguarding, and electric power steering (EPS) feedback circuit designs requiring stable component supply across long production lifecycles.
Supply support for TA6L22AHM3/I 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, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and automotive-grade qualification.
The TA6L22AHM3/I belongs to Vishay's PAR® series of high-temperature TVS diodes, engineered specifically for harsh-environment automotive electronics where sustained operation above 150 °C and immunity to mechanical whisker growth are mandatory.
FAQ
What is the maximum clamping voltage of the TA6L22AHM3/I at its rated peak pulse current?
The TA6L22AHM3/I has a maximum clamping voltage (VC) of 30.6 V at its rated peak pulse current (IPPM) of 19.6 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and ensures protected downstream components experience no more than 30.6 V during worst-case surge events. The TA6L22AHM3/I maintains this clamping performance across its full operating temperature range.
Is the TA6L22AHM3/I qualified for automotive applications?
Yes, the TA6L22AHM3/I is AEC-Q101 qualified and meets JESD 201 Class 2 whisker resistance requirements. Its construction uses halogen-free, RoHS-compliant materials, and it is rated for continuous operation up to 185 °C junction temperature - satisfying critical reliability criteria for under-hood automotive modules. The HM3 suffix explicitly denotes this qualification status for the TA6L22AHM3/I.
What package type does the TA6L22AHM3/I use, and how is polarity identified?
The TA6L22AHM3/I uses the SlimSMAW (DO-221AD) surface-mount package, measuring 5.0 mm × 3.6 mm with a low profile of 2.1 mm max height. Polarity is identified by a visible cathode band on the top surface of the molded case; the end with the band is the cathode terminal, and the opposite end is the anode. This marking aligns with IPC-7351 standards for automated optical inspection.
How does the TA6L22AHM3/I compare to standard SMAJ-series TVS diodes in thermal performance?
The TA6L22AHM3/I delivers significantly better thermal performance than standard SMAJ-series devices: its typical junction-to-ambient thermal resistance (RθJA) is 120 °C/W on a 2 oz. FR4 board, versus 150 °C/W for SMAJ22A-E3/5A. This 20 % improvement allows the TA6L22AHM3/I to sustain higher average power dissipation in compact automotive layouts without exceeding TJ = 185 °C.
What is the reverse leakage current specification for the TA6L22AHM3/I at maximum standoff voltage?
At its maximum standoff voltage (VWM) of 18.8 V and ambient temperature of 25 °C, the TA6L22AHM3/I exhibits a maximum reverse leakage current (IR) of 1.0 μA. At elevated junction temperature (TJ = 150 °C), leakage increases to a maximum of 5.0 μA - a tightly controlled value that preserves signal integrity in low-power sensor interfaces and avoids false triggering in precision analog circuits using the TA6L22AHM3/I.
TA6L22AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SlimSMAW (DO-221AD)
TA6L22AHM3/I FAQ
1.How can I place an order for TA6L22AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L22AHM3/I 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 TA6L22AHM3/I reliable?
The price and inventory of TA6L22AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L22AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L22AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L22AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L22AHM3/I?
TA6L22AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L22AHM3/I 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 TA6L22AHM3/I?
For technical support, including TA6L22AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L22AHM3/I requirements.
6.How does Aetrix verify that TA6L22AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L22AHM3/I 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 TA6L22AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L22AHM3/I?
All TA6L22AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L22AHM3/I, 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 TA6L22AHM3/I part is unused and in its original packaging.
Return procedure for TA6L22AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L22AHM3/I Tags
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