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Vishay General Semiconductor - Diodes Division TA6F8.2AHM3_A/H
- Part No.:
- TA6F8.2AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F8.2AHM3_A/H.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,866
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Product details
Overview
TA6F8.2AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode in SlimSMA (DO-221AC) package, designed for automotive-grade circuit protection. It features a 7.79–8.61 V breakdown voltage (VBR) at 10 mA, 7.02 V stand-off voltage (VWM), and clamps transients up to 12.1 V at 49.6 A peak pulse current (IPPM), delivering 600 W peak pulse power (10/1000 µs). It is AEC-Q101 qualified and rated for TJ = 185 °C operation.
For engineers reviewing the TA6F8.2AHM3_A/H datasheet, TA6F8.2AHM3_A/H pinout, TA6F8.2AHM3_A/H application, or TA6F8.2AHM3_A/H equivalent, this device is selected for high-reliability automotive sensor line protection, MOSFET gate clamp circuits, and ESD-sensitive signal paths where low-profile mounting, 30 kV IEC 61000-4-2 ESD immunity, and MSL Level 1 reflow compatibility are required.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for stable clamping under repetitive surge stress and high-temperature operation. Its unidirectional configuration provides forward conduction only during reverse overvoltage events, enabling precise protection of DC-biased lines without interfering with normal signal polarity.
The SlimSMA (DO-221AC) package delivers thermal resistance RθJA ≤ 150 °C/W on FR4 PCB and RθJM ≤ 15 °C/W to mount, supporting 8 W power dissipation at TM = 65 °C. Its 0.95 mm typical height and matte tin-plated terminals ensure compatibility with automated SMT placement and J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 7.79 / 8.20 / 8.61 V at IT = 10 mA - defines reliable turn-on threshold for transient suppression without false triggering |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 100 µA |
| IPPM (10/1000 µs) | 49.6 A - peak surge current it safely clamps while limiting voltage to ≤12.1 V |
| VC at IPPM | 12.1 V - clamped voltage seen by protected IC/MOSFET during worst-case surge |
| PPPM | 600 W - energy-handling capacity for standardized lightning/inductive-switching transients |
| TJ max | 185 °C - enables use in under-hood automotive environments without derating penalties |
| ESD rating | 30 kV contact/air per IEC 61000-4-2 - protects against human-body-model and system-level electrostatic discharge |
Pinout & Package
Package: SlimSMA (DO-221AC), surface-mount, 2-terminal unidirectional TVS diode with cathode band marking. Dimensions: 4.15–4.35 mm length × 2.50–2.70 mm width × 0.95 mm height. RoHS-compliant, halogen-free, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path terminal | Connected to lower-potential side (e.g., GND or signal return); conducts during reverse overvoltage |
| Cathode | Reverse-biased clamping terminal | Marked with color band; connected to protected line (e.g., sensor supply or CAN signal); sinks surge current |
Key Features
| Feature | Design Value |
|---|---|
| Very low profile (0.95 mm height) | Enables integration in space-constrained automotive modules and stacked PCB assemblies without mechanical interference |
| AEC-Q101 qualification | Validates reliability for automotive electronics including engine control units, ADAS sensors, and body controllers |
| Junction passivation optimized design | Reduces parameter drift and leakage growth after repeated surge exposure, extending service life in harsh environments |
| MSL Level 1 rating | Allows single-pass reflow without baking or special handling, reducing manufacturing cost and process risk |
| 30 kV IEC 61000-4-2 ESD immunity | Eliminates need for additional discrete ESD protection on exposed connectors or sensor interfaces |
Applications
| Automotive Sensor Protection | Power Supply Rail Clamp |
|---|---|
|
Use Scenario: Protecting analog output lines of temperature, pressure, or position sensors in engine bay modules exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor signal line and ground to clamp transients before they reach ADC input or signal conditioner IC. Use Value: Limits induced voltage to ≤12.1 V, preventing latch-up or damage to 5 V or 3.3 V interface ICs while maintaining <100 µA leakage at 7.02 V nominal operation. |
Use Scenario: Safeguarding 12 V automotive microcontroller supply rails against inductive switching spikes from solenoids, relays, or motor drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS across VCC–GND to absorb energy from fast-rising transients (<100 ns rise time) before LDO or buck converter input stage. Use Value: Withstands 600 W surges and operates up to 185 °C, ensuring robustness during extended high-ambient conditions without derating. |
| Infotainment Interface Protection | Body Control Module Signal Lines |
|
Use Scenario: Shielding USB, LIN, or analog audio lines in head units from ESD events during user interaction or connector mating. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point to shunt ESD current before reaching PHY or codec ICs. Use Value: 30 kV IEC 61000-4-2 rating ensures compliance with OEM ESD test plans; SlimSMA footprint minimizes board area vs. larger SMA packages. |
Use Scenario: Guarding wake-up inputs, door lock actuator signals, or ambient light sensor lines in BCMs subjected to battery disconnect/reconnect transients. IC Role / Device Role / Timing Role: Bidirectionally referenced unidirectional TVS (anode grounded) used on 5 V or 12 V digital control lines to prevent false wake-ups or logic corruption. Use Value: Tight VBR tolerance (±5%) and low VC/VBR ratio (1.48) ensure fast, predictable clamping with minimal overshoot during 10/1000 µs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Higher VBR (7.6–8.4 V), same 600 W PPPM, but SMB package (1.6 mm height) and higher RθJA (~160 °C/W) | Less suitable for ultra-low-profile automotive modules; requires larger PCB pad layout | Choose when legacy SMB footprint is fixed and height constraint is relaxed |
| TPSMD8.2A | Same VBR range and SlimSMA package, but lower IEC 61000-4-2 rating (20 kV) and no AEC-Q101 qualification | Not approved for automotive production; limited to industrial or consumer-grade systems | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with SMBJ8.0A and TPSMD8.2A, TA6F8.2AHM3_A/H uniquely combines AEC-Q101 qualification, 30 kV ESD immunity, and 0.95 mm height in SlimSMA-making it the only option meeting full automotive sensor line protection requirements without layout or reliability trade-offs.
Availability
TA6F8.2AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, power rail clamping, and infotainment interface ESD hardening requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TA6F8.2AHM3_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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, automotive qualification, and high-temperature performance.
The TA6F series belongs to Vishay's PAR® family of high-power, high-temperature TVS diodes engineered specifically for automotive electronics protection under extreme thermal and electrical stress conditions.
FAQ
What is the breakdown voltage tolerance for TA6F8.2AHM3_A/H?
The TA6F8.2AHM3_A/H has a specified breakdown voltage (VBR) range of 7.79 V (min) to 8.61 V (max) at 10 mA test current, yielding a ±5% tolerance around the nominal 8.2 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining in automotive safety-critical circuits.
Is TA6F8.2AHM3_A/H compatible with lead-free reflow processes?
Yes, TA6F8.2AHM3_A/H is rated for MSL Level 1 per J-STD-020 with a maximum peak reflow temperature of 260 °C, making it fully compatible with standard lead-free (SnAgCu) reflow profiles. Its matte tin-plated terminals meet J-STD-002 solderability requirements, ensuring robust wetting and joint integrity without pre-baking.
Does TA6F8.2AHM3_A/H support bidirectional transient suppression?
No, TA6F8.2AHM3_A/H is a unidirectional TVS diode, intended for DC-biased lines where clamping is required only in reverse polarity. It does not provide symmetrical protection like a bidirectional device; for AC or floating signal lines, a separate bidirectional variant (e.g., TA6F8.2CA) would be required.
What is the maximum clamping voltage of TA6F8.2AHM3_A/H at its rated peak pulse current?
The TA6F8.2AHM3_A/H clamps to a maximum of 12.1 V at its rated peak pulse current of 49.6 A (10/1000 µs waveform). This VC value is measured under standardized surge conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
How does the thermal performance of TA6F8.2AHM3_A/H compare to standard SMA packages?
TA6F8.2AHM3_A/H uses the SlimSMA (DO-221AC) package, achieving RθJM ≤ 15 °C/W - significantly better than standard SMA (DO-214AC) packages (~25–30 °C/W). This improved thermal resistance enables higher sustained power handling and more stable operation at elevated ambient temperatures, especially critical in automotive under-hood applications.
TA6F8.2AHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 49.6A
- 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:
- DO-221AC (SlimSMA)
TA6F8.2AHM3_A/H FAQ
1.How can I place an order for TA6F8.2AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F8.2AHM3_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 TA6F8.2AHM3_A/H reliable?
The price and inventory of TA6F8.2AHM3_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 TA6F8.2AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TA6F8.2AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F8.2AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F8.2AHM3_A/H?
TA6F8.2AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F8.2AHM3_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 TA6F8.2AHM3_A/H?
For technical support, including TA6F8.2AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F8.2AHM3_A/H requirements.
6.How does Aetrix verify that TA6F8.2AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TA6F8.2AHM3_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 TA6F8.2AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TA6F8.2AHM3_A/H?
All TA6F8.2AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6F8.2AHM3_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 TA6F8.2AHM3_A/H part is unused and in its original packaging.
Return procedure for TA6F8.2AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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