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Vishay General Semiconductor - Diodes Division TA6L33AHM3/H
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- Part No.:
- TA6L33AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L33AHM3/H.pdf
- Description:
- 600W,33V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:6,800
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Product details
Overview
TA6L33AHM3/H 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 33 V breakdown voltage (VBR = 31.4–34.7 V at 1 mA), 28.2 V stand-off voltage (VWM), 45.7 V clamping voltage at 13.1 A peak pulse current, and 600 W peak pulse power (10/1000 µs). It operates up to +185 °C junction temperature and is AEC-Q101 qualified for engine control units and sensor interfaces.
For engineers reviewing the TA6L33AHM3/H datasheet, TA6L33AHM3/H pinout, TA6L33AHM3/H application, or TA6L33AHM3/H equivalent, this page delivers verified electrical parameters, thermal derating behavior, SlimSMAW package mechanical data, and automotive-grade reliability validation per JESD201 Class 2 whisker test and MSL Level 1 reflow compatibility.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under high-temperature transients. Its unidirectional configuration provides low-leakage reverse blocking (≤1.0 µA at VWM) and precise breakdown threshold with ±5% tolerance across the 33 V nominal rating.
The device delivers consistent 600 W surge handling capability under standardized 10/1000 µs waveform conditions, with thermal resistance RθJA ≤ 150 °C/W on FR4 PCB and RθJM ≤ 15 °C/W to mounting pad-enabling robust thermal management in compact automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 31.4 / 33.0 / 34.7 V at 1 mA - defines precise overvoltage triggering threshold with tight 5% tolerance |
| VWM | 28.2 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 45.7 V at 13.1 A - clamping voltage during 600 W transient, limiting downstream IC stress |
| PPPM | 600 W (10/1000 µs) - peak surge power handling capacity validated per IEC 61000-4-5 |
| TJ max | +185 °C - enables operation in under-hood automotive environments without derating |
| AEC-Q101 | Qualified - meets stress testing requirements for automotive electronic components |
| Package | SlimSMAW (DO-221AD) - low-profile SMD outline with 2.70 mm width and 5.00 mm length |
Pinout & Package
SlimSMAW (DO-221AD) is a surface-mount, single-diode package with cathode band marking on the top surface. The device has two terminals: anode and cathode, oriented per JEDEC DO-221AD standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected circuit ground or low-side return path in unidirectional clamp configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., CAN_H, LIN, sensor supply); color band identifies this end |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature junction capability | TJ = 185 °C enables use in engine control, transmission, and ADAS modules without thermal derating |
| AEC-Q101 qualification + JESD201 Class 2 | Validated for automotive production; whisker-resistant matte tin plating ensures long-term solder joint integrity |
| Low-profile SlimSMAW package | Height ≤ 1.10 mm allows placement beneath connectors or in space-constrained ECU housings |
| MSL Level 1 reflow compatibility | Supports lead-free reflow up to 260 °C peak without moisture-induced failure |
| Stable clamping with low leakage | 1.0 µA max reverse leakage at VWM preserves signal integrity on low-power sensor lines |
Applications
| Automotive Engine Control Unit (ECU) | Automotive Sensor Interface Protection |
|---|---|
Use Scenario: Protecting microcontroller I/O and power rails from load-dump and inductive switching transients in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between 12 V supply rail and ground, clamping surges before they reach MCU power pins. Use Value: Withstands 600 W pulses and operates reliably at 185 °C, eliminating need for external heatsinking in compact ECU designs. | Use Scenario: Safeguarding analog outputs of pressure, temperature, and position sensors connected to body control modules. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 28.2 V) placed across sensor output line to absorb ESD and ISO 7637-2 pulses. Use Value: Low 1.0 µA leakage at VWM prevents signal offset drift; 45.7 V clamping protects 3.3 V/5 V ADC inputs via series impedance. |
| Automotive LIN Bus Line Protection | Automotive CAN FD Transceiver Protection |
Use Scenario: Shielding LIN bus master/slave nodes from battery transients and electrostatic discharge in door modules and seat controls. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and ground, leveraging VWM margin above 12 V nominal bus voltage. Use Value: Fast response (<1 ns) and low capacitance preserve LIN's 19.2 kbps signaling integrity while meeting ISO 16750-2 pulse test requirements. | Use Scenario: Adding secondary surge protection upstream of CAN FD transceivers in ADAS camera and radar modules. IC Role / Device Role / Timing Role: Primary clamping element on CAN_H/CAN_L lines, coordinated with internal transceiver ESD diodes for multi-level protection. Use Value: 600 W rating handles ISO 16750-2 Pulse 5a/b surges; SlimSMAW footprint fits alongside high-density CAN FD layout without trace detours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5A (Vishay) | Same VBR range but in SMA (DO-214AC) package; RθJA = 190 °C/W; not AEC-Q101 qualified | Limited to industrial/commercial use; unsuitable for under-hood automotive deployment | Select when cost sensitivity outweighs automotive qualification and thermal performance requirements |
| TPSMD33A (Texas Instruments) | 33 V VBR, 600 W rating, AEC-Q101 qualified, but in larger SMC (DO-214AB) package (7.11 mm × 6.22 mm) | Higher board area consumption; lower thermal efficiency (RθJA ≈ 170 °C/W) | Choose only if existing SMC footprint reuse is mandatory and SlimSMAW re-layout is prohibitive |
Compared with SMAJ33A-E3/5A and TPSMD33A, TA6L33AHM3/H offers superior thermal performance (RθJA ≤ 150 °C/W), smallest footprint among AEC-Q101 33 V TVS diodes, and JESD201 Class 2 whisker compliance-making it optimal for next-generation compact, high-reliability automotive electronics.
Availability
TA6L33AHM3/H is available at Aetrix Electronics and suitable for automotive engine control units, sensor interface circuits, LIN bus nodes, and CAN FD transceiver protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for TA6L33AHM3/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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The TA6L series belongs to Vishay's PAR® family of high-power, high-temperature TVS diodes engineered specifically for harsh-environment automotive electronics where sustained 185 °C operation and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance for TA6L33AHM3/H?
The TA6L33AHM3/H has a breakdown voltage (VBR) specified as 31.4 V (min), 33.0 V (nominal), and 34.7 V (max) at 1 mA test current-corresponding to a ±5% tolerance around the 33 V nominal rating. This tight tolerance ensures predictable clamping onset across production lots and temperature ranges, critical for protecting sensitive automotive microcontrollers and transceivers.
Is TA6L33AHM3/H compatible with lead-free reflow processes?
Yes, TA6L33AHM3/H is rated for MSL Level 1 per J-STD-020 and supports lead-free reflow with a maximum peak temperature of 260 °C. Its matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability standards, and the SlimSMAW molding compound complies with UL 94 V-0 flammability requirements-ensuring reliable assembly in modern automotive manufacturing lines.
Does TA6L33AHM3/H have automotive qualification documentation?
Yes, TA6L33AHM3/H carries full AEC-Q101 qualification and meets JESD201 Class 2 whisker test requirements. The HM3 suffix explicitly denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. Certification documentation-including test reports and qualification summaries-is available directly from Vishay upon request through authorized distribution channels.
What is the maximum clamping voltage of TA6L33AHM3/H under surge conditions?
The maximum clamping voltage (VC) of TA6L33AHM3/H is 45.7 V at 13.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during worst-case transients-enabling safe interfacing with 3.3 V, 5 V, and 12 V automotive ICs.
How does TA6L33AHM3/H perform thermally on a standard FR4 PCB?
When mounted on a standard FR4 PCB with 2 oz. copper per JEDEC 51-2A, TA6L33AHM3/H exhibits a maximum junction-to-ambient thermal resistance (RθJA) of 150 °C/W. Its junction-to-mount thermal resistance (RθJM) is ≤15 °C/W per JEDEC 51-14, enabling efficient heat transfer to underlying copper planes-critical for maintaining <185 °C junction temperature in high-power automotive transients.
TA6L33AHM3/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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- 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)
TA6L33AHM3/H FAQ
1.How can I place an order for TA6L33AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L33AHM3/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 TA6L33AHM3/H reliable?
The price and inventory of TA6L33AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L33AHM3/H is usually 5 days.
3.What payment methods are accepted for TA6L33AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L33AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L33AHM3/H?
TA6L33AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L33AHM3/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 TA6L33AHM3/H?
For technical support, including TA6L33AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L33AHM3/H requirements.
6.How does Aetrix verify that TA6L33AHM3/H is sourced from the original manufacturer or authorized distributors?
All TA6L33AHM3/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 TA6L33AHM3/H meets industry standards.
7.What is the process for return or replacement of TA6L33AHM3/H?
All TA6L33AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6L33AHM3/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 TA6L33AHM3/H part is unused and in its original packaging.
Return procedure for TA6L33AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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