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Vishay General Semiconductor - Diodes Division TA6F6.8AHM3_A/H
- Part No.:
- TA6F6.8AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F6.8AHM3_A/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,573
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Product details
Overview
TA6F6.8AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for automotive-grade circuit protection. It features a breakdown voltage of 6.45–7.14 V at 10 mA, clamps transients to ≤10.5 V at 57.1 A (10/1000 μs), and delivers 600 W peak pulse power in the SlimSMA (DO-221AC) package. It is AEC-Q101 qualified and rated for TJ = 185 °C, making it suitable for protecting sensor signal lines and MOSFET gates in engine control units.
For engineers reviewing the TA6F6.8AHM3_A/H datasheet, TA6F6.8AHM3_A/H pinout, TA6F6.8AHM3_A/H application, or TA6F6.8AHM3_A/H equivalent, key selection criteria include its 6.8 V nominal breakdown, 5.8 V stand-off voltage, 30 kV IEC 61000-4-2 ESD rating, SlimSMA mechanical compatibility, and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under repetitive surge stress and high-temperature operation up to 185 °C. Its unidirectional polarity and low-profile SlimSMA package support automated placement on compact PCBs while maintaining robust thermal resistance (RθJA ≤ 150 °C/W).
The device operates with a typical junction capacitance <100 pF at zero bias and exhibits a temperature coefficient of breakdown voltage αT = 0.047 %/°C - enabling predictable voltage shift over automotive temperature ranges. It meets MSL Level 1 per J-STD-020 and passes JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 6.45–7.14 V at 10 mA - defines minimum clamping onset threshold under controlled DC test conditions |
| Stand-off Voltage VWM | 5.80 V - maximum continuous reverse working voltage before leakage exceeds 500 μA at 25 °C |
| Peak Pulse Power PPPM | 600 W (10/1000 μs) - sustains single high-energy transients without failure in automotive load-dump scenarios |
| Clamping Voltage VC | ≤10.5 V at 57.1 A - limits voltage seen by protected ICs during worst-case surge events |
| Junction Temperature Range | −65 to +185 °C - supports operation in under-hood environments and high-reliability industrial systems |
| ESD Rating | ±30 kV contact discharge per IEC 61000-4-2 - protects against human-body-model electrostatic events |
| Package | SlimSMA (DO-221AC) - 0.95 mm height, halogen-free, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
SlimSMA (DO-221AC) is a surface-mount, two-terminal package with cathode indicated by a color band. The device has no internal leads or exposed die pad; terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to system ground or lower-potential node in unidirectional protection configuration |
| Cathode | Current exit terminal during forward conduction; marked with color band | Connected to protected line (e.g., sensor output or MCU input) to clamp positive transients to VWM + ΔV |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock per JEDEC standards |
| TJ = 185 °C capability | Enables reliable operation in high-ambient under-hood locations without derating penalties above 150 °C |
| Low-profile SlimSMA package | 0.95 mm max height allows routing beneath connectors and in space-constrained ADAS modules |
| Passivated anisotropic rectifier design | Reduces parameter drift over time and improves long-term stability under thermal cycling stress |
| MSL Level 1 rating | Supports reflow soldering at peak 260 °C without preconditioning or baking requirements |
Applications
| Automotive Sensor Protection | Engine Control Unit (ECU) Inputs |
|---|---|
Use Scenario: Protecting analog outputs of pressure, temperature, and position sensors exposed to load-switching transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and MCU ADC input to clamp fast-rising spikes before they reach sensitive front-end circuitry. Use Value: Limits voltage excursion to ≤10.5 V during 57.1 A surges, preserving ADC accuracy and preventing latch-up in 3.3 V or 5 V microcontrollers. |
Use Scenario: Safeguarding digital and analog inputs on engine control modules subject to alternator load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary transient suppression device on LIN bus lines, throttle actuator drivers, and crankshaft position interface circuits. Use Value: Withstands 600 W (10/1000 μs) surges and maintains ≤500 μA leakage at 5.8 V, ensuring signal integrity during normal operation and fault conditions. |
| Powertrain Communication Lines | Onboard Charger Signal Monitoring |
Use Scenario: Shielding CAN FD physical layer receivers from coupled noise and battery rail disturbances in hybrid powertrain gate driver boards. IC Role / Device Role / Timing Role: Secondary protection stage downstream of common-mode chokes, absorbing differential-mode overshoot on CAN_H/CAN_L pairs. Use Value: Low junction capacitance (<100 pF) avoids signal edge degradation at >2 Mbps data rates while providing 30 kV ESD immunity. |
Use Scenario: Protecting voltage/current sense feedback paths in bidirectional onboard chargers interfacing with 400 V–800 V battery systems. IC Role / Device Role / Timing Role: Standoff-rated TVS on isolated amplifier inputs monitoring high-side shunt resistors, preventing saturation during switching transients. Use Value: 5.8 V VWM aligns with typical op-amp supply rails; 0.047 %/°C VBR tempco ensures stable clamping across −40 to +125 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A | Same 6.8 V nominal VBR, but lower 400 W PPPM rating and SMA package (1.6 mm height) | Lacks AEC-Q101 qualification and 185 °C TJ rating; not approved for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and thermal margin requirements |
| TPSMF6.8A | Identical SlimSMA footprint and 600 W rating, but only rated to TJ = 175 °C and lacks JESD201 Class 2 whisker test compliance | Approved for industrial but not full AEC-Q101 scope; may require additional reliability validation for Tier 1 automotive programs | Choose if AEC-Q101 is not contractually mandated and 175 °C junction limit suffices |
Compared with SMAJ6.8A and TPSMF6.8A, TA6F6.8AHM3_A/H uniquely combines AEC-Q101 qualification, 185 °C junction rating, JESD201 Class 2 whisker resistance, and 0.95 mm profile - making it the only option qualified for next-generation automotive sensor nodes requiring both miniaturization and extended thermal endurance.
Availability
TA6F6.8AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, engine control unit (ECU) inputs, and powertrain communication line protection requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TA6F6.8AHM3_A/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-qualified components meeting stringent industry standards.
The TA6F6.8AHM3_A/H belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for high-temperature stability and robust transient suppression in automotive electronics and industrial control systems.
FAQ
What is the exact breakdown voltage range for TA6F6.8AHM3_A/H?
The TA6F6.8AHM3_A/H has a guaranteed breakdown voltage (VBR) range of 6.45 V to 7.14 V at a test current of 10 mA, measured per the manufacturer's electrical characteristics table. This range reflects production tolerances and ensures consistent clamping behavior across all units of TA6F6.8AHM3_A/H shipped from Vishay's qualified lots.
Is TA6F6.8AHM3_A/H compatible with lead-free reflow soldering processes?
Yes, TA6F6.8AHM3_A/H is fully compatible with lead-free reflow soldering. It meets MSL Level 1 per J-STD-020 and supports a maximum peak reflow temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD22-B102, ensuring reliable wetting and joint formation without voiding or dewetting issues during standard SMT assembly of TA6F6.8AHM3_A/H.
Does TA6F6.8AHM3_A/H have AEC-Q101 qualification documentation available?
Yes, TA6F6.8AHM3_A/H is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number: 89939, Revision: 16-Jan-2025). The qualification covers temperature cycling, high-temperature operating life, unbiased highly accelerated stress testing, and mechanical shock - all performed per the full AEC-Q101 standard scope applicable to TA6F6.8AHM3_A/H.
What is the clamping voltage of TA6F6.8AHM3_A/H at its rated peak pulse current?
The TA6F6.8AHM3_A/H clamps to a maximum of 10.5 V at its rated peak pulse current of 57.1 A (10/1000 μs waveform), as specified in the Electrical Characteristics table. This value represents the upper limit of voltage imposed on protected circuitry during standardized surge events and is critical for ensuring downstream ICs remain within safe operating voltage margins during TA6F6.8AHM3_A/H activation.
Can TA6F6.8AHM3_A/H be used in bidirectional configurations?
No, TA6F6.8AHM3_A/H is a unidirectional TVS diode and must be used with correct polarity - cathode toward the protected line. It does not provide symmetrical clamping for negative transients. For bidirectional protection, a separate device such as a dual-channel or bipolar TVS would be required; TA6F6.8AHM3_A/H is not rated or characterized for reverse surge conduction beyond its specified IR leakage at VWM.
TA6F6.8AHM3_A/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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57.1A
- 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)
TA6F6.8AHM3_A/H FAQ
1.How can I place an order for TA6F6.8AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F6.8AHM3_A/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 TA6F6.8AHM3_A/H reliable?
The price and inventory of TA6F6.8AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F6.8AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TA6F6.8AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F6.8AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F6.8AHM3_A/H?
TA6F6.8AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F6.8AHM3_A/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 TA6F6.8AHM3_A/H?
For technical support, including TA6F6.8AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F6.8AHM3_A/H requirements.
6.How does Aetrix verify that TA6F6.8AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TA6F6.8AHM3_A/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 TA6F6.8AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TA6F6.8AHM3_A/H?
All TA6F6.8AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6F6.8AHM3_A/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 TA6F6.8AHM3_A/H part is unused and in its original packaging.
Return procedure for TA6F6.8AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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