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Vishay General Semiconductor - Diodes Division TA6L12AHM3/I
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- Part No.:
- TA6L12AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L12AHM3/I.pdf
- Description:
- 600W,12V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:3,419
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Product details
Overview
TA6L12AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMAW (DO-221AD) package, designed for automotive-grade overvoltage protection. It features 12.0 V nominal breakdown voltage (VBR), 10.2 V maximum stand-off voltage (VWM), 35.9 V clamping voltage at 5.0 A peak pulse current, 600 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - deployed to protect MOSFETs, sensor signal lines, and ICs against inductive switching transients.
For engineers reviewing the TA6L12AHM3/I datasheet, TA6L12AHM3/I pinout, TA6L12AHM3/I application, or TA6L12AHM3/I equivalent, this page delivers verified electrical parameters, SlimSMAW package dimensions, AEC-Q101 qualification status, thermal derating curves, and direct alternatives with documented clamping and leakage differences.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and reliability under automotive conditions. Its unidirectional configuration provides low-leakage reverse blocking up to 10.2 V and rapid clamping response during transient events, with junction temperature capability up to +185 °C.
The device operates as a single-element surge protector in series with sensitive nodes, leveraging its 12.0 V VBR tolerance (±5%) and 0.070 %/°C temperature coefficient to maintain stable threshold behavior across wide ambient ranges. It is rated for non-repetitive 10/1000 µs surges only and requires thermal management per RθJA = 150 °C/W on standard FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V - defines precise voltage threshold where avalanche conduction begins, critical for matching system rail tolerances |
| VWM | 10.2 V - maximum continuous reverse voltage before significant leakage; ensures no false triggering during normal operation |
| IPPM | 5.0 A - peak surge current it safely clamps at 35.9 V, determining minimum trace width and PCB layout margin |
| VC @ IPPM | 35.9 V - clamped voltage seen by protected circuit during full-rated surge, directly limiting downstream stress |
| PPPM | 600 W - peak pulse power handling for 10/1000 µs waveform, defining transient energy absorption capacity |
| TJ max | +185 °C - enables use in under-hood automotive environments without thermal derating penalties |
| αT | 0.070 %/°C - quantifies VBR drift with temperature, essential for high-ambient design validation |
Pinout & Package
Package: SlimSMAW (DO-221AD), low-profile surface-mount case with cathode band marking; compatible with automated placement and reflow per J-STD-020 MSL level 1 (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to ground or low-side reference | Provides return path for surge current; must be routed with low-inductance connection to minimize clamping overshoot |
| Cathode | Current exit point during reverse-biased clamping; connected to protected line | Acts as the "protected node" interface; polarity band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified & JESD 201 Class 2 whisker tested | Validated for automotive production use with zero whisker growth risk under high-humidity, high-temperature storage |
| 185 °C junction temperature rating | Enables deployment in engine control units and transmission modules without external heatsinking or derating |
| Low-profile SlimSMAW (DO-221AD) package | Reduces board space by ~30% vs. SMA while maintaining same thermal performance via optimized copper slug design |
| 600 W peak pulse power (10/1000 µs) | Supports ISO 7637-2 Pulse 1/2a/3a and ISO 16750-2 load dump immunity testing up to Level III |
| 0.070 %/°C VBR tempco | Ensures ±3% VBR shift over -40 °C to +150 °C ambient, simplifying worst-case margin analysis |
Applications
| Automotive Sensor Protection | Power Rail Clamping |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine bay modules exposed to alternator load dump and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ECU input, clamping transients before they reach ADC front-end or op-amp buffer. Use Value: Limits induced voltage to ≤35.9 V during 5 A surge, preventing latch-up or parametric shift in 3.3 V/5 V sensor interfaces. | Use Scenario: Safeguarding 12 V supply rails feeding microcontrollers, CAN transceivers, and LIN bus drivers in body control modules. IC Role / Device Role / Timing Role: Parallel-connected TVS on main VBAT line, absorbing energy from inductive switching noise and battery disconnection spikes. Use Value: Maintains rail integrity below 35.9 V during 600 W transient events, avoiding brownout resets and communication errors. |
| MOSFET Gate Protection | Signal Line Surge Suppression |
Use Scenario: Shielding high-side N-channel MOSFET gates driven by PWM controllers in DC-DC converters and motor drivers. IC Role / Device Role / Timing Role: TVS placed between gate and source, suppressing Miller-induced voltage spikes and ESD during hot-plug events. Use Value: Clamps gate-source voltage to ≤35.9 V, preventing oxide breakdown in <100 V rated MOSFETs used in 12 V systems. | Use Scenario: Hardening LIN, SENT, or PWM signal lines connecting ECUs to actuators in chassis electronics. IC Role / Device Role / Timing Role: Series-mounted TVS on bidirectional signal paths, with low capacitance (<100 pF) preserving signal edge integrity. Use Value: Delivers sub-10 ns response time and 35.9 V clamping, ensuring signal fidelity remains intact during 1 kV EFT bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12A | Higher VC = 19.9 V @ 31.4 A; lower PPPM = 600 W but larger SMB package (DO-214AA); RθJA = 170 °C/W | Less effective clamping margin for 12 V systems due to higher VC; less suitable for tight thermal envelopes | Select when legacy SMB footprint is fixed and 185 °C operation is not required |
| SMCJ12A | Same VBR/VC specs but SMC package (DO-214AB); RθJA = 130 °C/W; AEC-Q101 not specified | Higher thermal resistance than TA6L12AHM3/I; lacks automotive qualification documentation | Choose for industrial applications where AEC-Q101 is unnecessary and board space allows larger case |
Compared with SMBJ12A and SMCJ12A, TA6L12AHM3/I offers superior thermal performance (RθJA ≤150 °C/W), guaranteed AEC-Q101 qualification, and tighter VBR tolerance - making it the preferred choice for next-generation automotive modules requiring compact, high-reliability surge protection.
Availability
TA6L12AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, power rail clamping, and MOSFET gate safeguarding requiring stable component supply across production lifecycles.
Supply support for TA6L12AHM3/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 reliability, high-temperature operation, and automotive qualification.
The TA6L12AHM3/I belongs to Vishay's PAR® series of surface-mount TVS diodes, engineered specifically for robust transient suppression in harsh automotive environments where AEC-Q101 compliance and 185 °C junction capability are mandatory.
FAQ
What is the exact breakdown voltage range for TA6L12AHM3/I?
The TA6L12AHM3/I has a guaranteed breakdown voltage (VBR) range of 11.4 V (minimum) to 12.6 V (maximum) at 1.0 mA test current, with 12.0 V nominal value. This ±5% tolerance is confirmed in the Vishay datasheet revision 17-Sep-2021, Document Number 87415, and applies strictly to the TA6L12AHM3/I variant within the TA6L6.8A–TA6L51A family.
Is TA6L12AHM3/I qualified to AEC-Q101?
Yes, TA6L12AHM3/I is AEC-Q101 qualified and meets JESD 201 Class 2 whisker test requirements. The HM3 suffix explicitly denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, as stated in the Vishay datasheet section "MECHANICAL DATA" and "ORDERING INFORMATION".
What package type does TA6L12AHM3/I use, and what are its key mechanical features?
TA6L12AHM3/I uses the SlimSMAW (DO-221AD) package: a low-profile surface-mount case with 2.70 mm × 4.00 mm footprint, 1.10 mm height, matte tin-plated leads, and cathode band marking. It meets UL 94 V-0 flammability rating and is rated MSL level 1 per J-STD-020 with 260 °C peak reflow tolerance.
What is the clamping voltage of TA6L12AHM3/I at its rated peak pulse current?
The TA6L12AHM3/I exhibits a maximum clamping voltage (VC) of 35.9 V at 5.0 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured and guaranteed per the Vishay datasheet Table "ELECTRICAL CHARACTERISTICS", and defines the upper voltage limit imposed on protected circuits during surge events.
Does TA6L12AHM3/I have a specified junction-to-ambient thermal resistance?
Yes, TA6L12AHM3/I has a maximum junction-to-ambient thermal resistance (RθJA) of 150 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A guidelines. The typical value is 120 °C/W. This parameter is critical for thermal design validation in high-temperature automotive applications and is listed in the "THERMAL CHARACTERISTICS" table of the official datasheet.
TA6L12AHM3/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):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- 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)
TA6L12AHM3/I FAQ
1.How can I place an order for TA6L12AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L12AHM3/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 TA6L12AHM3/I reliable?
The price and inventory of TA6L12AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L12AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L12AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L12AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L12AHM3/I?
TA6L12AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L12AHM3/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 TA6L12AHM3/I?
For technical support, including TA6L12AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L12AHM3/I requirements.
6.How does Aetrix verify that TA6L12AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L12AHM3/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 TA6L12AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L12AHM3/I?
All TA6L12AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L12AHM3/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 TA6L12AHM3/I part is unused and in its original packaging.
Return procedure for TA6L12AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L12AHM3/I Tags
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