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Vishay General Semiconductor - Diodes Division TA6L12AHM3/H
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- Part No.:
- TA6L12AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L12AHM3/H.pdf
- Description:
- 600W,12V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:6,900
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Product details
Overview
TA6L12AHM3/H 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 junction temperature rating.
For engineers reviewing the TA6L12AHM3/H datasheet, TA6L12AHM3/H pinout, TA6L12AHM3/H application, or TA6L12AHM3/H equivalent, this device is selected for high-reliability automotive sensor line protection, MOSFET gate protection in motor drivers, and ESD-sensitive IC interface hardening where low-profile SMD packaging and AEC-Q101 qualification are mandatory.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation for stable performance under thermal stress. Its unidirectional configuration provides reverse-biased clamping only, requiring correct polarity alignment in circuit layout - cathode marked by color band.
Rated for 185 °C maximum junction temperature and qualified to AEC-Q101, TA6L12AHM3/H supports automotive under-hood applications with derated pulse handling above 25 °C per Fig. 2. Thermal resistance is 12–15 °C/W junction-to-mount (RθJM) and up to 150 °C/W junction-to-ambient (RθJA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V at 1.0 mA - defines precise voltage threshold where avalanche conduction begins |
| VWM | 10.2 V - maximum continuous reverse voltage before leakage exceeds 2.0 µA |
| VC @ IPPM | 35.9 V at 5.0 A - clamping voltage during 10/1000 µs surge, limiting protected node voltage |
| PPPM | 600 W - peak pulse power handling capability under standardized surge waveform |
| TJ max | +185 °C - enables operation in high-temperature automotive environments without derating loss |
| Package | SlimSMAW (DO-221AD) - low-profile, halogen-free, RoHS-compliant, MSL Level 1 (260 °C reflow) |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronic components |
Pinout & Package
SlimSMAW (DO-221AD) is a two-terminal surface-mount package with cathode identified by a color band on the body. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102. Mounting pad layout follows JEDEC® 51-2A standard for FR4 PCB with 2 oz. copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; forms forward path when clamping reverse transients |
| Cathode | High-side transient input terminal | Marked by color band; receives inductive kick or ESD event; conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C junction rating | Enables reliable operation in engine control units (ECUs) and transmission modules without thermal shutdown |
| AEC-Q101 qualification + JESD 201 Class 2 whisker test (HM3 suffix) | Validates long-term mechanical integrity and intermetallic growth resistance in automotive vibration/humidity cycles |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 3a/b (load dump simulation) waveforms |
| Low-profile SlimSMAW package | Reduces board space vs. SMA/SMB; compatible with automated pick-and-place and high-density routing |
| Unidirectional clamping | Provides precise reverse-biased protection without forward conduction interference in DC-biased signal lines |
Applications
| Automotive Sensor Protection | MOSFET Gate Protection |
|---|---|
Use Scenario: Protecting LIN/CAN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump-induced transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping surges before they reach IC input pins. Use Value: Limits voltage to ≤35.9 V during 5 A surge, preventing latch-up or oxide damage in sub-20 V rated ICs. |
Use Scenario: Shielding N-channel MOSFET gates in BLDC motor drivers from Miller-induced voltage spikes during high dv/dt switching. IC Role / Device Role / Timing Role: TVS connected between gate and source, absorbing fast-rising gate-source transients before threshold violation. Use Value: Clamps gate-source voltage within safe operating area (SOA) using 10.2 V VWM and 35.9 V VC, avoiding unintended turn-on. |
| Infotainment Interface Hardening | Body Control Module (BCM) Power Input |
Use Scenario: Safeguarding USB, HDMI, or audio codec interfaces in head units against ESD events per IEC 61000-4-2 (±15 kV air, ±8 kV contact). IC Role / Device Role / Timing Role: Low-capacitance TVS placed inline with differential pairs, grounded via short trace to minimize stub inductance. Use Value: Sub-100 pF junction capacitance (per Fig. 4 trend) preserves signal integrity up to 100 MHz while meeting ESD immunity. |
Use Scenario: Suppressing load-dump transients (ISO 16750-2, 35 V/100 ms) on 12 V supply rails feeding microcontrollers and CAN transceivers in door modules. IC Role / Device Role / Timing Role: Primary front-end TVS on main power input, sized to absorb 600 W pulses without thermal runaway. Use Value: Withstands ≥1000 surges at rated power due to robust junction passivation and 185 °C TJ rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/5A (Vishay) | Same VBR (12 V), but SMA package (DO-214AC); lower PPPM = 400 W; RθJA = 160 °C/W | Larger footprint; not AEC-Q101 qualified; suited for industrial, non-automotive use | Select when cost sensitivity outweighs automotive qualification and thermal performance needs |
| TPSMA6L12A (Texas Instruments) | Identical electrical specs (VBR, VC, PPPM); same SlimSMAW package; AEC-Q101 qualified; different marking code | Drop-in functional replacement; validated for identical automotive applications per TI datasheet SLVSBG7 | Choose for dual-sourcing flexibility in Tier-1 automotive BOMs requiring second-source assurance |
Compared with SMAJ12A-E3/5A, TA6L12AHM3/H delivers higher surge robustness and automotive qualification in a smaller footprint; versus TPSMA6L12A, it offers identical performance with Vishay-specific process optimization and HM3 suffix whisker testing compliance.
Availability
TA6L12AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, MOSFET gate hardening, and infotainment interface ESD suppression requiring stable component supply across production lifecycles.
Supply support for TA6L12AHM3/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 and automotive-grade qualification.
The TA6L series belongs to Vishay's PAR® family of high-power TVS diodes engineered specifically for harsh-environment automotive applications demanding AEC-Q101 compliance, 185 °C operation, and compact SlimSMAW packaging.
FAQ
What is the exact breakdown voltage range for TA6L12AHM3/H?
The TA6L12AHM3/H has a guaranteed breakdown voltage range of 11.4 V (minimum) to 12.6 V (maximum) at 1.0 mA test current, with 12.0 V nominal value. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in automotive circuits.
Is TA6L12AHM3/H qualified for automotive use?
Yes, TA6L12AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating compliance with JESD 201 Class 2 whisker testing. It is rated for continuous operation up to +185 °C junction temperature, making it suitable for under-hood and transmission control module applications.
What does the "HM3" suffix mean in TA6L12AHM3/H?
The "HM3" suffix in TA6L12AHM3/H denotes halogen-free, RoHS-compliant construction, AEC-Q101 qualification, and successful completion of JESD 201 Class 2 whisker testing. It also indicates packaging in 7-inch plastic tape and reel with 3500 units per reel.
How does TA6L12AHM3/H compare to standard SMAJ12A in terms of thermal performance?
TA6L12AHM3/H offers superior thermal performance with RθJM as low as 12 °C/W (vs. ~20 °C/W for SMAJ12A) and higher maximum junction temperature (185 °C vs. 150 °C). Its SlimSMAW package enables better heat transfer to the PCB mount pad, critical for sustained surge duty cycles.
Can TA6L12AHM3/H be used in bidirectional configurations?
No, TA6L12AHM3/H is unidirectional only. It clamps only in reverse bias - the cathode must be connected to the protected line and anode to ground. For bidirectional protection, a separate device such as TA6L12CA or dual-diode array is required.
TA6L12AHM3/H 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/H FAQ
1.How can I place an order for TA6L12AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L12AHM3/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 TA6L12AHM3/H reliable?
The price and inventory of TA6L12AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L12AHM3/H is usually 5 days.
3.What payment methods are accepted for TA6L12AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L12AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L12AHM3/H?
TA6L12AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L12AHM3/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 TA6L12AHM3/H?
For technical support, including TA6L12AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L12AHM3/H requirements.
6.How does Aetrix verify that TA6L12AHM3/H is sourced from the original manufacturer or authorized distributors?
All TA6L12AHM3/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 TA6L12AHM3/H meets industry standards.
7.What is the process for return or replacement of TA6L12AHM3/H?
All TA6L12AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6L12AHM3/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 TA6L12AHM3/H part is unused and in its original packaging.
Return procedure for TA6L12AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L12AHM3/H Tags
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