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Vishay General Semiconductor - Diodes Division TA6F33AHM3/6A
- Part No.:
- TA6F33AHM3/6A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F33AHM3/6A.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,833
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Product details
Overview
TA6F33AHM3/6A from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and ESD transients on power and signal lines. It features a 31.4–34.7 V breakdown voltage (VBR), 28.2 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), 13.1 A peak pulse current, and 45.7 V clamping voltage at IPPM, operating up to +185 °C junction temperature in automotive and industrial sensor protection.
For engineers reviewing the TA6F33AHM3/6A datasheet, TA6F33AHM3/6A pinout, TA6F33AHM3/6A application, or TA6F33AHM3/6A equivalent, key selection criteria include unidirectional polarity, DO-221AC (SlimSMA) package compatibility with automated placement, AEC-Q101 qualification, IEC 61000-4-2 Level 4 ESD immunity (15 kV air / 8 kV contact), and thermal resistance of 145 °C/W (junction-to-ambient).
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low-profile mounting. Its unidirectional architecture provides precise reverse-biased clamping during overvoltage events, with junction temperature capability up to +185 °C and MSL Level 1 moisture sensitivity rating.
The device delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with clamping performance validated at 13.1 A IPPM. Thermal design relies on RθJA = 145 °C/W (on FR-4 minimum pad) and RθJM = 20 °C/W, supporting robust operation in compact, thermally constrained layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V - ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 28.2 V - maximum continuous reverse working voltage compatible with 24 V nominal systems |
| IPPM (10/1000 μs) | 13.1 A - surge current handling capacity for typical automotive load-dump and inductive kick events |
| VC @ IPPM | 45.7 V - clamped voltage level that protects downstream ICs rated ≤ 48 V |
| PPPM | 600 W - peak pulse power rating defining transient energy absorption capability |
| TJ max | +185 °C - enables use in under-hood automotive environments and high-reliability industrial enclosures |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV (air), 8 kV (contact) - meets stringent end-equipment ESD immunity requirements |
Pinout & Package
Package: DO-221AC (SlimSMA), ultra-low-profile surface-mount case with 0.95 mm typical height, matte tin-plated terminals, halogen-free and RoHS-compliant construction, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to system ground or lower-potential rail in unidirectional clamping configuration |
| Cathode | Clamping node | Connected to protected line (e.g., 24 V supply or sensor signal); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile | 0.95 mm typical height - enables integration into space-constrained modules and thin PCB assemblies |
| AEC-Q101 qualification | Validated for automotive-grade reliability - supports deployment in engine control, body electronics, and ADAS subsystems |
| Junction passivation | Optimized anisotropic rectifier structure - improves long-term stability under thermal cycling and humidity exposure |
| MSL Level 1 | Rated for peak reflow up to 260 °C - eliminates pre-baking requirements and simplifies SMT manufacturing |
| Automated placement ready | DO-221AC geometry and terminal finish compliant with J-STD-002/JESD22-B102 - ensures high-yield pick-and-place assembly |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting LIN bus and switched 12 V/24 V loads (e.g., door locks, lighting) from load-dump and inductive kick transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between protected line and chassis ground. Use Value: Limits transient voltage to ≤45.7 V during 13.1 A surges, preventing damage to MCU I/O and driver ICs in AEC-Q100-compliant designs. |
Use Scenario: Safeguarding analog output (4–20 mA) and digital interface (RS-485) lines of pressure, temperature, and flow sensors in factory automation. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across signal pair or signal-to-ground to absorb ESD and fast transients. Use Value: Withstands 15 kV air-gap ESD per IEC 61000-4-2 and clamps 10/1000 μs surges to <46 V, preserving signal integrity and ADC accuracy. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive Stage |
Use Scenario: Secondary-side DC input protection for PoE-powered equipment and base station power rails exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24–48 V DC input before DC-DC converters and PMICs. Use Value: 600 W peak pulse rating and 28.2 V VWM allow stable operation under normal conditions while suppressing >1 kV transients per IEC 61000-4-5. |
Use Scenario: Suppressing back-EMF from brushed DC motors and solenoids in washing machines, HVAC actuators, and robotic vacuum cleaners. IC Role / Device Role / Timing Role: Freewheeling TVS across motor coil terminals to clamp inductive flyback voltage. Use Value: 185 °C junction rating ensures reliability during sustained motor stall conditions and ambient temperatures up to +105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | Same DO-214AC package; VBR = 36.7–40.6 V, VC = 53.3 V at 11.8 A, lower PPPM = 400 W | Higher clamping voltage reduces margin for 3.3 V/5 V logic protection; better suited for higher-voltage (>36 V) rails | Select SMAJ33A only if system VWM exceeds 28.2 V and layout allows higher clamping headroom. |
| SMCJ33A | DO-214AB package; VBR = 36.7–40.6 V, VC = 53.3 V at 33.5 A, PPPM = 1500 W, larger footprint | Higher surge capacity but 2.3× larger board area and incompatible with SlimSMA footprints | Choose SMCJ33A when 1500 W surge handling is required and space permits; not drop-in for TA6F33AHM3/6A. |
Compared with SMAJ33A and SMCJ33A, TA6F33AHM3/6A offers superior thermal performance (TJ = 185 °C), tighter VBR tolerance (±5%), and smaller DO-221AC footprint-making it optimal for high-density, high-reliability 24 V systems where clamping voltage margin and board space are critical.
Availability
TA6F33AHM3/6A is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, telecom power inputs, and consumer appliance motor drives requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for TA6F33AHM3/6A 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 TVS devices with emphasis on reliability, thermal performance, and automotive qualification.
The TA6F series is part of Vishay's PAR® (Protection Against Transients) family, engineered specifically for high-temperature, high-reliability transient suppression in automotive and industrial environments where conventional TVS diodes fail.
FAQ
What is the exact breakdown voltage range for TA6F33AHM3/6A?
The TA6F33AHM3/6A has a guaranteed breakdown voltage (VBR) range of 31.4 V to 34.7 V at 1.0 mA test current, measured per JEDEC standards. This tight ±5% tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage protection design in 24 V systems where margin above nominal rail is critical.
Is TA6F33AHM3/6A qualified for automotive applications?
Yes, TA6F33AHM3/6A is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood and cabin-mounted automotive electronics including body control modules, lighting drivers, and sensor interfaces. Its DO-221AC package also meets JESD201 Class 2 whisker resistance requirements.
What is the clamping voltage of TA6F33AHM3/6A at its rated peak pulse current?
At its rated peak pulse current of 13.1 A (10/1000 μs waveform), TA6F33AHM3/6A clamps to a maximum of 45.7 V. This value is specified in the Vishay datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Does TA6F33AHM3/6A support automated SMT assembly?
Yes, TA6F33AHM3/6A uses a DO-221AC (SlimSMA) package with matte tin-plated terminals that comply with J-STD-002 and JESD22-B102 solderability standards. Its low 0.95 mm profile and defined pad layout ensure high-yield placement and reflow in high-volume automated manufacturing.
What ESD standards does TA6F33AHM3/6A meet?
TA6F33AHM3/6A meets IEC 61000-4-2 Level 4 for electrostatic discharge immunity: 15 kV for air discharge and 8 kV for contact discharge. This certification is verified per Vishay's qualification testing and supports compliance in end-equipment subjected to harsh handling environments.
TA6F33AHM3/6A 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:
- Obsolete
- 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:
- DO-221AC (SlimSMA)
TA6F33AHM3/6A FAQ
1.How can I place an order for TA6F33AHM3/6A through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F33AHM3/6A 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 TA6F33AHM3/6A reliable?
The price and inventory of TA6F33AHM3/6A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F33AHM3/6A is usually 5 days.
3.What payment methods are accepted for TA6F33AHM3/6A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F33AHM3/6A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F33AHM3/6A?
TA6F33AHM3/6A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F33AHM3/6A 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 TA6F33AHM3/6A?
For technical support, including TA6F33AHM3/6A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F33AHM3/6A requirements.
6.How does Aetrix verify that TA6F33AHM3/6A is sourced from the original manufacturer or authorized distributors?
All TA6F33AHM3/6A 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 TA6F33AHM3/6A meets industry standards.
7.What is the process for return or replacement of TA6F33AHM3/6A?
All TA6F33AHM3/6A units undergo pre-shipment inspection (PSI). If there is an issue with TA6F33AHM3/6A, 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 TA6F33AHM3/6A part is unused and in its original packaging.
Return procedure for TA6F33AHM3/6A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F33AHM3/6A Tags
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