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Vishay General Semiconductor - Diodes Division TA6L9.1AHM3/I
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- Part No.:
- TA6L9.1AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L9.1AHM3/I.pdf
- Description:
- 600W,9.1V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:5,521
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Product details
Overview
TA6L9.1AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in SlimSMAW (DO-221AD) package, with 9.1 V breakdown voltage (VBR), 7.78 V stand-off voltage (VWM), 44.8 V clamping voltage at 13.4 A peak pulse current, and 600 W peak pulse power rating for 10/1000 µs waveform - designed for automotive sensor signal-line protection against inductive switching transients.
For engineers reviewing the TA6L9.1AHM3/I datasheet, TA6L9.1AHM3/I pinout, TA6L9.1AHM3/I application, or TA6L9.1AHM3/I equivalent, this page delivers verified electrical parameters, thermal limits (TJ = 185 °C), AEC-Q101 qualification status, SOD-128-compatible mechanical outline, and real-world use context for high-reliability automotive electronics design.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve stable junction behavior up to 185 °C, enabling operation in under-hood automotive environments. Its unidirectional configuration provides low-leakage reverse blocking (25 µA max at VWM) while delivering precise clamping at 44.8 V under 13.4 A surge conditions.
The SlimSMAW (DO-221AD) package supports MSL Level 1 handling and 260 °C lead-free reflow, with thermal resistance RθJA ≤ 150 °C/W on FR4 PCB. It is halogen-free, RoHS-compliant, and qualified to AEC-Q101 with JESD201 Class 2 whisker testing (HM3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 8.65 / 9.10 / 9.55 V - ensures reliable conduction onset above system operating voltage without false triggering |
| VWM | 7.78 V - maximum continuous reverse voltage before leakage exceeds 25 µA, compatible with 5 V–8 V logic/sensor rails |
| IPPM | 13.4 A - peak surge current capability under 10/1000 µs waveform, sufficient for ISO 7637-2 Pulse 1 & 2a suppression |
| VC @ IPPM | 44.8 V - clamped voltage during full-rated surge, limiting downstream IC stress to safe levels |
| TJ max | 185 °C - enables sustained operation in high-temperature automotive zones (e.g., engine control units, ADAS sensors) |
| Package | SlimSMAW (DO-221AD) - low-profile, high-power density footprint with optimized thermal path to PCB |
| AEC-Q101 | Qualified - meets stress test requirements for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SlimSMAW (DO-221AD) is a 2-terminal surface-mount package with cathode indicated by a color band. The device has no internal circuitry beyond the single unidirectional TVS junction; terminals are anode and cathode only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to protected line ground or low-side reference | Provides return path for surge current during clamping; must be routed with low-inductance connection to local ground plane |
| Cathode | Current exit point during reverse-biased clamping; connected to protected signal or power rail | Acts as the "protected side" terminal - surge energy shunted from cathode to anode when VPK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C junction rating | Enables deployment in engine bay and transmission control modules without derating or thermal shutdown |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from solenoid drivers and motor commutation without degradation |
| AEC-Q101 + JESD201 Class 2 qualified | Validated for automotive production use with proven whisker resistance and long-term reliability under thermal cycling |
| Low VWM/VBR ratio (0.855) | Minimizes margin between operating voltage and clamping threshold, improving protection sensitivity |
| SlimSMAW mechanical compatibility | Drop-in replacement for legacy SOD-128 footprints while offering superior thermal performance and lower profile |
Applications
| Automotive Sensor Signal Protection | Engine Control Unit (ECU) Power Rail Clamping |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors exposed to load-dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients before they reach sensitive analog front-end circuitry. Use Value: Limits clamped voltage to 44.8 V while maintaining <25 µA leakage at 7.78 V, preserving signal integrity and preventing ADC saturation or latch-up. | Use Scenario: Safeguarding 5 V or 3.3 V regulated supply rails inside ECUs subjected to ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (load dump). IC Role / Device Role / Timing Role: Parallel-connected TVS across rail-to-ground to absorb surge energy within microseconds, complementing bulk capacitance and upstream filtering. Use Value: Delivers 600 W peak power dissipation with 13.4 A surge capacity and 185 °C junction rating, ensuring robustness during repeated thermal stress cycles. |
| ADAS Camera Module Interface Protection | Body Control Module (BCM) LIN Bus Line Protection |
Use Scenario: Shielding high-speed image sensor data lines (e.g., MIPI CSI-2) in rear-view or surround-view cameras from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector interface to suppress fast-rising transients before propagation into serializer/deserializer ICs. Use Value: Achieves 44.8 V clamping at 13.4 A with minimal parasitic capacitance (typical ~100 pF at 0 V), avoiding signal distortion on multi-Mbps video links. | Use Scenario: Securing LIN bus physical layer in door modules and lighting controllers against battery disconnect spikes and electrostatic discharge. IC Role / Device Role / Timing Role: Unidirectional TVS installed between LIN line and ground to clamp negative-going transients while allowing normal bidirectional communication. Use Value: Maintains 7.78 V stand-off with only 25 µA leakage, ensuring LIN transceiver bias remains stable and dominant-state voltage compliance is preserved. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Higher VBR (8.55–9.45 V), same 600 W rating, SMA package (larger footprint, higher RθJA) | Limited to non-automotive industrial use; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and thermal performance needs |
| TPSMD9.0A | Identical VBR range and AEC-Q101 qualification, but uses DO-214AB package with higher RθJA (180 °C/W) | Acceptable for lower-power modules where board space allows larger footprint and thermal margin is less constrained | Choose if existing layout uses standard SMB/SMA pads and thermal derating can accommodate higher junction rise |
Compared with SMAJ9.0A and TPSMD9.0A, TA6L9.1AHM3/I offers superior thermal performance (RθJA ≤ 150 °C/W), smaller SlimSMAW footprint, and guaranteed AEC-Q101 compliance - making it the preferred choice for space-constrained, high-temperature automotive signal protection.
Availability
TA6L9.1AHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, engine control unit (ECU) power rail clamping, and ADAS camera module protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TA6L9.1AHM3/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The TA6Lx.xA series is part of Vishay's PAR® transient voltage suppressor family, engineered specifically for high-temperature, high-reliability automotive applications where sustained 185 °C operation and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance for TA6L9.1AHM3/I?
The TA6L9.1AHM3/I has a specified breakdown voltage (VBR) range of 8.65 V (min) to 9.55 V (max) at 1.0 mA test current, with a typical value of 9.10 V. This ±5% tolerance ensures consistent clamping behavior across production lots while maintaining compatibility with 8 V nominal system rails.
Is TA6L9.1AHM3/I qualified for automotive use?
Yes, TA6L9.1AHM3/I is AEC-Q101 qualified and meets JESD201 Class 2 whisker testing requirements. The HM3 suffix confirms halogen-free, RoHS-compliant construction and qualification for automotive applications including engine control, body electronics, and ADAS subsystems.
What is the maximum clamping voltage of TA6L9.1AHM3/I under surge conditions?
The TA6L9.1AHM3/I exhibits a maximum clamping voltage (VC) of 44.8 V at its rated peak pulse current of 13.4 A using the 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during transient events.
Does TA6L9.1AHM3/I have a unidirectional or bidirectional configuration?
TA6L9.1AHM3/I is a unidirectional TVS diode, meaning it conducts only during reverse-bias overvoltage events. Its polarity is marked by a cathode band, and it must be oriented with cathode toward the protected line and anode toward ground or reference potential.
What package type does TA6L9.1AHM3/I use, and is it compatible with standard SOD-128 layouts?
TA6L9.1AHM3/I uses the SlimSMAW (DO-221AD) package, which is mechanically compatible with SOD-128 footprints per Vishay documentation. Its dimensions (4.00 × 2.70 × 1.10 mm) and pad layout match industry-standard SOD-128 land patterns, enabling drop-in replacement in existing designs.
TA6L9.1AHM3/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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 44.8A
- 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)
TA6L9.1AHM3/I FAQ
1.How can I place an order for TA6L9.1AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L9.1AHM3/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 TA6L9.1AHM3/I reliable?
The price and inventory of TA6L9.1AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L9.1AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L9.1AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L9.1AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L9.1AHM3/I?
TA6L9.1AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L9.1AHM3/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 TA6L9.1AHM3/I?
For technical support, including TA6L9.1AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L9.1AHM3/I requirements.
6.How does Aetrix verify that TA6L9.1AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L9.1AHM3/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 TA6L9.1AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L9.1AHM3/I?
All TA6L9.1AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L9.1AHM3/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 TA6L9.1AHM3/I part is unused and in its original packaging.
Return procedure for TA6L9.1AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L9.1AHM3/I Tags
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