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Vishay General Semiconductor - Diodes Division TA6F8.2AHM3/6B
- Part No.:
- TA6F8.2AHM3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F8.2AHM3/6B.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,625
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Product details
Overview
TA6F8.2AHM3/6B from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching surges and ESD events on signal lines and power rails. It features a breakdown voltage of 7.79–8.61 V at 10 mA, clamps to ≤12.1 V at 49.6 A (10/1000 μs), delivers 600 W peak pulse power, operates up to +185 °C junction temperature, and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the TA6F8.2AHM3/6B datasheet, TA6F8.2AHM3/6B pinout, TA6F8.2AHM3/6B application, or TA6F8.2AHM3/6B equivalent, this page provides verified package dimensions, clamping performance under standardized surge waveforms, thermal resistance data (RθJA = 145 °C/W), ESD immunity per IEC 61000-4-2 Level 4 (15 kV air / 8 kV contact), and DO-221AC mechanical compatibility for automated SMT placement.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low-profile mounting. Its unidirectional architecture enables precise reverse-biased clamping with tight VBR tolerance (±5.5%) and low leakage (<100 μA at VWM = 7.02 V, TJ = 25 °C).
The device is rated for 600 W peak pulse power (10/1000 μs), supports 49.6 A maximum peak surge current, and maintains reliable operation across –65 °C to +185 °C junction temperature range. Its DO-221AC (SlimSMA) package enables high-density PCB layouts while meeting MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 7.79–8.61 V at 10 mA - defines precise clamping onset threshold for overvoltage protection |
| Stand-off Voltage VWM | 7.02 V - maximum continuous reverse working voltage before significant leakage begins |
| Clamping Voltage VC | ≤12.1 V at 49.6 A (10/1000 μs) - ensures downstream ICs see safe voltage during surge events |
| Peak Pulse Power PPPM | 600 W - sustains high-energy transients without failure under standardized waveform |
| Junction Temperature Range | –65 °C to +185 °C - supports under-hood automotive and industrial environments |
| ESD Rating (IEC 61000-4-2) | Level 4: 15 kV air / 8 kV contact - protects against human-body model discharge events |
| Thermal Resistance RθJA | 145 °C/W - determines self-heating rise above ambient under steady-state power dissipation |
Pinout & Package
Package: DO-221AC (SlimSMA), 2-terminal surface-mount case with cathode band marking; overall dimensions 5.52 mm × 2.70 mm × 0.95 mm (L × W × H); matte tin-plated terminals, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to protected line's lower-potential side (e.g., GND or return path) in unidirectional configuration |
| Cathode | Clamping node | Connected to protected line (e.g., signal or supply rail); color band identifies this terminal for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile height | 0.95 mm typical - enables use in space-constrained modules and thin consumer devices |
| AEC-Q101 qualification | Validated for automotive-grade reliability - required for engine control, ADAS, and infotainment systems |
| Junction passivation | Optimized anisotropic rectifier design - improves long-term stability under thermal cycling and humidity |
| MSL Level 1 rating | Reflow-compatible up to 260 °C peak - eliminates moisture sensitivity concerns during standard SMT assembly |
| Uni-directional clamping | Single-polarity suppression - simplifies layout vs. bi-directional parts when only negative transients occur |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp reverse transients before they reach sensitive input stages. Use Value: Prevents latch-up or permanent damage to microcontrollers and transceivers operating at 5 V or 3.3 V logic levels, leveraging 12.1 V clamping and 185 °C capability. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 600 W surges induced by 24 V DC solenoid switching. Use Value: Maintains signal integrity across decades of operation with <100 μA leakage at 7.02 V and validated MSL Level 1 reflow compatibility. |
| Consumer USB Data Line ESD Protection | Telecom PoE Ethernet Port Clamping |
|
Use Scenario: Shielding USB 2.0 D+/D− lines in smartphones and peripherals from human-body ESD events during handling and docking. IC Role / Device Role / Timing Role: Low-capacitance TVS (typical CJ ~30 pF at 0 V) placed inline to suppress fast-rising ESD pulses without distorting signal edges. Use Value: Achieves IEC 61000-4-2 Level 4 compliance (15 kV air) while preserving signal integrity up to 480 Mbps due to minimal parasitic capacitance. |
Use Scenario: Front-end surge protection for Power over Ethernet (PoE) data pairs in switches and powered devices subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping element on twisted-pair lines, coordinated with gas discharge tubes and common-mode chokes. Use Value: Delivers 600 W pulse handling and 49.6 A surge current capacity with stable VBR tolerance, ensuring robustness across IEEE 802.3af/at environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Higher VBR (7.22–8.88 V), same DO-214AC package, 400 W PPPM, not AEC-Q101 qualified | Limited to commercial/industrial use; lacks automotive qualification and higher surge rating | Select SMAJ8.0A only if AEC-Q101 and 600 W capability are not required and cost is prioritized. |
| SMCJ8.0A | Same VBR range, DO-214AB package, 1500 W PPPM, larger footprint (7.11 × 6.22 mm), RθJA = 19 °C/W | Better thermal performance but incompatible with slim-profile layouts; requires PCB redesign | Choose SMCJ8.0A when higher surge energy absorption is critical and board space allows larger package. |
Compared with SMAJ8.0A and SMCJ8.0A, TA6F8.2AHM3/6B uniquely balances AEC-Q101 qualification, 600 W surge rating, and ultra-low 0.95 mm profile in DO-221AC-making it optimal for automotive and portable electronics where space, reliability, and standardized surge immunity must coexist.
Availability
TA6F8.2AHM3/6B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, consumer USB data line protection, and telecom PoE port clamping requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for TA6F8.2AHM3/6B 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, efficiency, and application-specific optimization.
The TA6F series belongs to Vishay's PAR® family of high-reliability TVS diodes engineered specifically for demanding automotive and industrial environments where high-temperature operation, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the exact breakdown voltage range for TA6F8.2AHM3/6B?
The TA6F8.2AHM3/6B has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at a test current of 10 mA, measured per the Vishay datasheet Document Number 89939. This tight tolerance ensures predictable clamping behavior in precision protection circuits and aligns with its "8.2A" designation indicating nominal 8.2 V standoff capability.
Is TA6F8.2AHM3/6B suitable for automotive applications?
Yes, TA6F8.2AHM3/6B 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, ADAS sensors, and infotainment interfaces. Its DO-221AC package also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow standards required for automotive manufacturing.
What does the "HM3/6B" suffix mean in TA6F8.2AHM3/6B?
The "HM3" suffix denotes Vishay's halogen-free, RoHS-compliant, and AEC-Q101-qualified base construction, while "/6B" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 14,000 units. This format ensures compatibility with high-speed pick-and-place equipment and supports large-volume SMT production runs.
How does TA6F8.2AHM3/6B compare to bi-directional TVS diodes?
TA6F8.2AHM3/6B is unidirectional and optimized for clamping negative-going transients on positive-rail or signal-line-to-ground configurations. Unlike bi-directional parts, it offers lower leakage (<100 μA at 7.02 V) and tighter VBR tolerance, but cannot suppress positive surges on grounded lines. Use TA6F8.2AHM3/6B where circuit topology permits single-polarity protection and leakage sensitivity is critical.
What is the thermal resistance of TA6F8.2AHM3/6B, and how does it affect layout?
TA6F8.2AHM3/6B has a typical junction-to-ambient thermal resistance (RθJA) of 145 °C/W when mounted on a FR-4 board using the minimum recommended pad layout. This value implies that sustained power dissipation above ~60 mW will cause significant junction heating; therefore, PCB layout must follow Vishay's specified copper pad dimensions and thermal vias to avoid exceeding the 185 °C maximum junction temperature during surge events.
TA6F8.2AHM3/6B 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:
- Obsolete
- 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)
TA6F8.2AHM3/6B FAQ
1.How can I place an order for TA6F8.2AHM3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F8.2AHM3/6B 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 TA6F8.2AHM3/6B reliable?
The price and inventory of TA6F8.2AHM3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F8.2AHM3/6B is usually 5 days.
3.What payment methods are accepted for TA6F8.2AHM3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F8.2AHM3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F8.2AHM3/6B?
TA6F8.2AHM3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F8.2AHM3/6B 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 TA6F8.2AHM3/6B?
For technical support, including TA6F8.2AHM3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F8.2AHM3/6B requirements.
6.How does Aetrix verify that TA6F8.2AHM3/6B is sourced from the original manufacturer or authorized distributors?
All TA6F8.2AHM3/6B 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 TA6F8.2AHM3/6B meets industry standards.
7.What is the process for return or replacement of TA6F8.2AHM3/6B?
All TA6F8.2AHM3/6B units undergo pre-shipment inspection (PSI). If there is an issue with TA6F8.2AHM3/6B, 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 TA6F8.2AHM3/6B part is unused and in its original packaging.
Return procedure for TA6F8.2AHM3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F8.2AHM3/6B Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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