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Vishay General Semiconductor - Diodes Division TA6L6.8AHM3/I
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- Part No.:
- TA6L6.8AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L6.8AHM3/I.pdf
- Description:
- 600W,6.8V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:4,475
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Product details
Overview
TA6L6.8AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMAW (DO-221AD) package, designed for clamping voltage transients on automotive sensor signal lines and MOSFET gate drivers. It features 6.8 V breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 185 °C maximum junction temperature, and AEC-Q101 qualification with JESD201 Class 2 whisker testing.
For engineers reviewing the TA6L6.8AHM3/I datasheet, TA6L6.8AHM3/I pinout, TA6L6.8AHM3/I application, or TA6L6.8AHM3/I equivalent, this page delivers verified electrical specs, thermal derating behavior, SlimSMAW package mechanical data, and automotive-grade reliability validation - critical for ESD and load-dump protection design in high-temperature ECUs and ADAS sensor interfaces.
Technical Context
This TVS operates as a single-element, unidirectional clamping device using passivated anisotropic rectifier technology. Its junction passivation enables stable VBR drift (αT = 0.047 %/°C) and reliable operation up to TJ = 185 °C, meeting automotive under-hood thermal requirements.
The device responds to 10/1000 µs surge waveforms with 57.1 V clamping voltage at IPPM, delivering precise overvoltage protection without forward conduction during normal operation. Its low-profile SlimSMAW package supports high-density PCB layouts while maintaining MSL Level 1 moisture sensitivity and 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 6.45 / 6.80 / 7.14 V @ 10 mA - defines precise clamping onset threshold for repeatable protection margin |
| VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 500 µA, ensuring no false triggering |
| IPPM | 57.1 A @ 10/1000 µs - peak surge current capability enabling robust load-switching transient suppression |
| VC | 10.5 V @ IPPM - clamped voltage seen by protected IC, limiting stress on downstream components |
| TJ max | +185 °C - supports under-hood placement in automotive modules without thermal derating penalties |
| RθJA | 120–150 °C/W - thermal resistance informs board-level heatsinking needs for sustained surge duty cycles |
| AEC-Q101 | Qualified - validates reliability for automotive electronics per stress-test standards including HTGB, HTRB, and TC |
Pinout & Package
Package: SlimSMAW (DO-221AD) - low-profile, surface-mount case with cathode band marking; dimensions: 4.00 × 2.70 × 1.10 mm (L × W × H); meets UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to protected line (e.g., sensor output); conducts only during reverse overvoltage events |
| Cathode | Current exit terminal during clamping | Connected to ground or lower-potential rail; color band identifies polarity for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Passivated anisotropic rectifier technology | Enables stable VBR drift (0.047 %/°C) and long-term reliability under thermal cycling |
| 185 °C junction capability | Eliminates need for external thermal derating in engine-control and transmission modules |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking or special handling |
| JESD201 Class 2 whisker test compliance | Prevents tin whisker growth in high-humidity, high-temperature automotive environments |
| Halogen-free, RoHS-compliant construction | Meets global environmental regulations and OEM material declaration requirements |
Applications
| Automotive Sensor Protection | MOSFET Gate Driver Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to inductive switching noise and battery load dump. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient spikes before they reach precision ADC inputs or op-amp buffers. Use Value: Maintains signal integrity below 10.5 V clamping level while surviving repeated 600 W surges per ISO 7637-2 Pulse 1/2a/5a. | Use Scenario: Shielding high-side and low-side MOSFET gate drivers in motor control inverters from cross-talk and shoot-through-induced voltage overshoot. IC Role / Device Role / Timing Role: Fast-response clamping element placed between gate and source to limit VGS excursion during switching transitions. Use Value: Prevents gate oxide damage with 57.1 A peak surge current handling and sub-1 ns response time inherent to silicon avalanche structure. |
| Infotainment System USB Lines | ADAS Camera Power Rail |
Use Scenario: ESD protection on USB 2.0 D+/D− lines in head-unit and display modules subjected to IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 100 pF at VWM) unidirectional clamp shunting ESD energy to ground. Use Value: Preserves signal rise/fall times while meeting automotive ESD immunity requirements without adding series impedance. | Use Scenario: Load-dump protection on 12 V input rails of surround-view camera modules mounted near vehicle exterior. IC Role / Device Role / Timing Role: Primary overvoltage limiter absorbing ISO 16750-2 Category C pulses (up to 35 V, 200 ms). Use Value: Withstands 185 °C ambient and delivers 600 W pulse power without degradation, extending field life in sealed housings. |
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 VBR/VWM, but SMA (DO-214AC) package; RθJA = 190 °C/W; not AEC-Q101 qualified | Limited to industrial/commercial use; unsuitable for automotive under-hood deployment | Select when cost sensitivity outweighs automotive qualification and thermal performance requirements |
| TPSMF6.8A | Same SlimSMAW package and AEC-Q101 qualification; VC = 11.2 V @ IPPM; 400 W PPPM rating | Lower surge capacity; acceptable for lower-energy transients like ESD but not load dump | Choose where space-constrained layout demands SlimSMAW and full AEC-Q101 compliance is required, but 600 W rating is not needed |
Compared with SMAJ6.8A and TPSMF6.8A, the TA6L6.8AHM3/I uniquely combines 600 W surge rating, 185 °C junction capability, and SlimSMAW footprint - making it the only option qualified for high-energy automotive load-dump protection in thermally aggressive locations.
Availability
TA6L6.8AHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, ADAS camera modules, and industrial motor drives requiring stable component supply with AEC-Q101 traceability and high-temperature reliability.
Supply support for TA6L6.8AHM3/I 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, high-temperature, and automotive-qualified components.
The TA6L6.8AHM3/I belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for robust transient suppression in automotive powertrain, chassis, and body electronics under extreme thermal and electrical stress.
FAQ
What is the clamping voltage of the TA6L6.8AHM3/I at its rated peak pulse current?
The TA6L6.8AHM3/I has a maximum clamping voltage (VC) of 10.5 V when subjected to its peak pulse current (IPPM) of 57.1 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in the official Vishay datasheet (Document Number 87415) and ensures protected circuits remain within safe voltage limits during surge events. The TA6L6.8AHM3/I maintains this clamping performance across its full operating temperature range.
Is the TA6L6.8AHM3/I qualified for automotive applications?
Yes, the TA6L6.8AHM3/I is AEC-Q101 qualified and meets JESD201 Class 2 whisker test requirements. Its 185 °C maximum junction temperature, halogen-free construction, and MSL Level 1 reflow profile confirm suitability for automotive under-hood and cabin modules. The HM3 suffix explicitly denotes this qualification, and the TA6L6.8AHM3/I is listed in Vishay's qualified parts list for automotive-grade transient suppression.
What package type does the TA6L6.8AHM3/I use, and how does it differ from SMA or SMC?
The TA6L6.8AHM3/I uses the SlimSMAW (DO-221AD) package - a low-profile variant measuring 4.00 × 2.70 × 1.10 mm, thinner than standard SMA (DO-214AC) and smaller than SMC (DO-214AB). Unlike SMA, SlimSMAW offers improved thermal resistance (RθJM = 12–15 °C/W) and higher surge capability in the same PCB footprint. The TA6L6.8AHM3/I's SlimSMAW package also supports automated optical inspection due to its defined cathode band and coplanar leads.
Does the TA6L6.8AHM3/I have bidirectional capability?
No, the TA6L6.8AHM3/I is strictly unidirectional. Its electrical characteristics - including breakdown voltage, stand-off voltage, and clamping behavior - are specified only for reverse-biased operation. The cathode band marking and internal die structure confirm single-polarity functionality. For bidirectional protection, Vishay offers separate part numbers such as the TA6L6.8CA series; the TA6L6.8AHM3/I must not be used in AC-coupled or dual-polarity signal paths without external circuitry.
What is the maximum leakage current of the TA6L6.8AHM3/I at its stand-off voltage?
At 25 °C and VWM = 5.80 V, the TA6L6.8AHM3/I exhibits a maximum reverse leakage current (IR) of 500 µA. At elevated temperature (TJ = 150 °C), leakage increases to 1000 µA - a value confirmed in the Electrical Characteristics table of the Vishay datasheet. This controlled leakage ensures minimal power loss in always-on automotive systems while preserving fast response during transient events. The TA6L6.8AHM3/I's leakage remains well below thresholds that would affect sensor biasing or reference stability.
TA6L6.8AHM3/I 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:
- SlimSMAW (DO-221AD)
TA6L6.8AHM3/I FAQ
1.How can I place an order for TA6L6.8AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L6.8AHM3/I 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 TA6L6.8AHM3/I reliable?
The price and inventory of TA6L6.8AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L6.8AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L6.8AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L6.8AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L6.8AHM3/I?
TA6L6.8AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L6.8AHM3/I 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 TA6L6.8AHM3/I?
For technical support, including TA6L6.8AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L6.8AHM3/I requirements.
6.How does Aetrix verify that TA6L6.8AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L6.8AHM3/I 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 TA6L6.8AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L6.8AHM3/I?
All TA6L6.8AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L6.8AHM3/I, 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 TA6L6.8AHM3/I part is unused and in its original packaging.
Return procedure for TA6L6.8AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L6.8AHM3/I Tags
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