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Vishay General Semiconductor - Diodes Division TA6L22AHM3/H
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- Part No.:
- TA6L22AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L22AHM3/H.pdf
- Description:
- 600W,22V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,129
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Product details
Overview
TA6L22AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in SlimSMAW (DO-221AD) package, rated for 22.0 V breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 19.6 A peak pulse current, and 30.6 V maximum clamping voltage (VC) - designed for automotive-grade ESD and surge protection on sensor signal lines and MOSFET gate drivers.
For engineers reviewing the TA6L22AHM3/H datasheet, TA6L22AHM3/H pinout, TA6L22AHM3/H application, or TA6L22AHM3/H equivalent, this device offers AEC-Q101 qualification, TJ = 185 °C operation, MSL Level 1 moisture sensitivity, and halogen-free RoHS-compliant construction - critical for high-reliability automotive electronics design and long-term field deployment under thermal stress.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance across -65 °C to +185 °C junction temperature range. Its unidirectional configuration enables precise reverse-biased overvoltage protection without forward conduction interference in DC-biased signal paths.
The SlimSMAW (DO-221AD) package provides low-profile mounting with optimized thermal resistance (RθJM ≤ 15 °C/W) and robust solderability per J-STD-002/JESD22-B102. Polarity is marked by cathode band; terminals are matte tin plated for reliable reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - ensures reliable triggering above system operating voltage while maintaining margin against false clamping |
| VWM | 18.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA, compatible with 12 V automotive supply rails |
| VC @ IPPM | 30.6 V - clamping voltage at 19.6 A peak pulse, limiting downstream IC stress during ISO 7637-2 pulse 1/2a/5a transients |
| PPPM | 600 W (10/1000 µs) - sustains high-energy surges common in automotive load-dump and inductive switching events |
| TJ max | +185 °C - supports under-hood placement and extended lifetime in high-temperature engine control units |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronic components including HTGB, HTRB, and TCT |
| Package | SlimSMAW (DO-221AD) - 2.70 mm × 4.00 mm footprint with 1.10 mm height, enabling dense PCB layouts in space-constrained modules |
Pinout & Package
SlimSMAW (DO-221AD) is a two-terminal surface-mount package with cathode identified by a color band. The device has no internal circuitry beyond the single silicon junction; terminals are anode and cathode only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line (e.g., sensor output); conducts surge current toward ground when cathode is held at higher potential |
| Cathode | Reference terminal / clamping node | Marked by band; tied to system ground or low-impedance return path to establish clamping reference and sink surge energy |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure reduces parameter drift over temperature and lifetime, improving long-term reliability in automotive environments |
| MSL Level 1 rating | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating pre-bake requirements and reducing manufacturing complexity |
| Halogen-free & RoHS | Meets global environmental compliance mandates without compromising electrical performance or thermal robustness |
| JESD201 Class 2 whisker resistance | HM3 suffix confirms mitigation of tin whisker growth under thermal cycling, critical for safety-critical automotive applications |
| Low RθJM | ≤15 °C/W enables efficient heat transfer to PCB copper, supporting sustained operation near TJ = 185 °C in thermally constrained enclosures |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to load-dump and alternator ripple in 12 V vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient-induced latch-up or damage to precision analog front-end with 30.6 V clamping at 19.6 A, preserving signal integrity during ISO 7637-2 pulse 5a. |
Use Scenario: Safeguarding digital and analog inputs of engine control modules subjected to inductive kickback from solenoid drivers and fuel injectors. IC Role / Device Role / Timing Role: Standoff protection device mounted directly at connector interface before signal conditioning circuitry. Use Value: Withstands 600 W surge energy and operates up to +185 °C, ensuring uninterrupted function during under-hood thermal cycling and cold-cranking conditions. |
| Body Control Module (BCM) Signal Lines | Advanced Driver Assistance Systems (ADAS) Camera Interface |
Use Scenario: Shielding LIN bus and switch inputs in door modules and lighting controllers from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed inline with bidirectional LIN data line (cathode grounded). Use Value: 1.0 μA leakage at 18.8 V minimizes standby current impact; MSL Level 1 supports automated assembly without moisture sensitivity concerns. |
Use Scenario: Protecting FPD-Link III or GMSL serial video interfaces connecting radar/camera modules to domain controllers. IC Role / Device Role / Timing Role: High-speed transient suppressor co-located with connector to prevent ESD-induced pixel corruption or link reset. Use Value: SlimSMAW package fits tight spacing near high-density connectors; AEC-Q101 qualification validates suitability for ASIL-B functional safety paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/5A (Vishay) | Same VBR (22 V), but SMA package (DO-214AC); RθJA = 160 °C/W vs. 120–150 °C/W for TA6L22AHM3/H; not AEC-Q101 qualified | General industrial use only; lacks automotive qualification and high-TJ capability | Select when cost or legacy footprint compatibility outweighs automotive reliability requirements |
| TPSMD22A (Texas Instruments) | 22 V VBR, 600 W rating, AEC-Q101 qualified, but DO-214AB (SMC) package; 7.11 mm × 6.22 mm vs. 4.00 mm × 2.70 mm | Higher board area consumption; better thermal mass but less suitable for ultra-compact modules | Choose when higher surge repetition tolerance or legacy SMC layout reuse is prioritized over size and thermal efficiency |
Compared with SMAJ22A-E3/5A and TPSMD22A, TA6L22AHM3/H delivers superior thermal performance in minimal footprint, full AEC-Q101 compliance, and verified 185 °C junction operation - making it the preferred choice for next-generation automotive ECUs where space, temperature, and qualification rigor are non-negotiable.
Availability
TA6L22AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, engine control unit (ECU) input hardening, and ADAS camera interface surge suppression requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for TA6L22AHM3/H 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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The TA6L series belongs to Vishay's PAR® family of high-power, high-temperature TVS diodes engineered specifically for automotive-grade transient suppression - emphasizing AEC-Q101 qualification, 185 °C operation, and slim-profile packaging for modern vehicle electronics.
FAQ
What is the exact breakdown voltage tolerance for TA6L22AHM3/H?
The TA6L22AHM3/H has a guaranteed breakdown voltage range of 20.9 V (minimum) to 23.1 V (maximum) at 1.0 mA test current, with 22.0 V nominal. This ±5% tolerance ensures consistent clamping behavior across production lots and supports robust design margins for 12 V automotive systems where VWM = 18.8 V provides adequate standoff headroom.
Is TA6L22AHM3/H suitable for bidirectional signal lines like CAN or LIN?
No - TA6L22AHM3/H is unidirectional only and must be used with cathode grounded in standard configurations. For bidirectional protection (e.g., CAN bus), a dedicated bidirectional TVS such as the SMBJ24CA or equivalent is required. Using TA6L22AHM3/H on bidirectional lines risks forward conduction and signal distortion during normal operation.
Does TA6L22AHM3/H require derating at elevated ambient temperatures?
Yes - TA6L22AHM3/H must be derated per Figure 2 in the datasheet. At TA = 125 °C, peak pulse power drops to ~55% of the 600 W rating at 25 °C. Designers must verify clamping performance using the published derating curve and ensure junction temperature remains ≤185 °C under worst-case surge and ambient conditions.
What does the "HM3" suffix indicate in TA6L22AHM3/H?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance. It also specifies the preferred tape-and-reel packaging: 3500 units per 7-inch reel. The "/H" indicates the same base package code and is part of Vishay's standardized ordering nomenclature for this variant.
Can TA6L22AHM3/H replace older SMAJ22A devices in existing designs?
TA6L22AHM3/H is not a direct drop-in replacement for SMAJ22A due to different package (SlimSMAW vs. SMA), thermal characteristics, and qualification status. While electrical parameters align closely, PCB land pattern, thermal relief, and automotive compliance requirements differ. Redesign validation - especially for AEC-Q101 and thermal performance - is mandatory before substitution.
TA6L22AHM3/H 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/H FAQ
1.How can I place an order for TA6L22AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L22AHM3/H 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/H reliable?
The price and inventory of TA6L22AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L22AHM3/H is usually 5 days.
3.What payment methods are accepted for TA6L22AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L22AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L22AHM3/H?
TA6L22AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L22AHM3/H 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/H?
For technical support, including TA6L22AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L22AHM3/H requirements.
6.How does Aetrix verify that TA6L22AHM3/H is sourced from the original manufacturer or authorized distributors?
All TA6L22AHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of TA6L22AHM3/H?
All TA6L22AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6L22AHM3/H, 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/H part is unused and in its original packaging.
Return procedure for TA6L22AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L22AHM3/H Tags
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