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Vishay General Semiconductor - Diodes Division TA6L39AHM3/H
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- Part No.:
- TA6L39AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L39AHM3/H.pdf
- Description:
- 600W,39V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:6,880
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Product details
Overview
TA6L39AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMAW (DO-221AD) package, designed for clamping inductive switching transients and ESD events. It features 39.0 V nominal breakdown voltage (VBR), 33.3 V stand-off voltage (VWM), 53.9 V maximum clamping voltage at 11.1 A peak pulse current, 600 W peak pulse power (10/1000 µs), and AEC-Q101 qualification for automotive electronics protection.
For engineers reviewing the TA6L39AHM3/H datasheet, TA6L39AHM3/H pinout, TA6L39AHM3/H application, or TA6L39AHM3/H equivalent, this page delivers verified electrical parameters, thermal derating behavior, junction temperature capability up to +185 °C, SlimSMAW mechanical dimensions, and direct alternatives for automotive-grade circuit protection design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for high-reliability operation under thermal stress. Its unidirectional configuration provides low-clamping-voltage protection against positive-going transients while maintaining <1.0 µA reverse leakage at VWM and 150 °C junction temperature.
The device operates across -65 °C to +185 °C junction range and exhibits 0.091 %/°C temperature coefficient of VBR, enabling predictable voltage shift over temperature. Thermal resistance is rated at RθJA = 150 °C/W (JEDEC 51-2A, FR4, 2 oz.) and RθJM = 15 °C/W (JEDEC 51-14 TDIM), supporting high-power transient absorption in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V - Ensures reliable turn-on above system operating voltage with margin against tolerance drift |
| VWM | 33.3 V - Maximum continuous reverse voltage before significant leakage; compatible with 3.3 V–24 V supply rails |
| IPPM | 11.1 A (10/1000 µs) - Peak surge current handling capacity for automotive load-dump and ISO 7637-2 pulse 5a events |
| VC | 53.9 V - Clamped voltage during full IPPM; limits downstream IC stress to safe levels per IEC 61000-4-5 |
| PPPM | 600 W - Sustains high-energy transients without thermal runaway; validated per Fig. 1 & Fig. 2 derating curves |
| TJ max | +185 °C - Enables placement near hot components (e.g., power MOSFETs, DC-DC converters) in engine control units |
| AEC-Q101 | Qualified - Meets automotive reliability requirements including high-temperature operating life and whisker testing (JESD 201 Class 2) |
Pinout & Package
Package: SlimSMAW (DO-221AD), low-profile surface-mount case with matte tin-plated leads, UL 94 V-0 molding compound, and cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference; carries full surge current during clamping |
| Cathode | Protected line connection | Connected to signal/power line being protected; voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Protects against positive transients only; avoids false triggering on negative signal swings in DC-biased lines |
| 185 °C junction rating | Supports under-hood automotive deployment without thermal derating penalties in high-ambient environments |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow assembly without moisture sensitivity concerns or baking requirements |
| Halogen-free & RoHS-compliant | Meets global environmental compliance mandates for automotive OEMs and Tier 1 suppliers |
| Low-profile SlimSMAW footprint | Reduces PCB real estate vs. SMA/SMB; enables dense layout in ADAS camera modules and radar ECUs |
Applications
| Automotive Power Line Protection | Engine Control Unit (ECU) Signal Lines |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power rails from load dump pulses (ISO 7637-2 Pulse 5a). IC Role / Device Role: Primary clamping element placed between battery input and LDO/regulator input. Use Value: Limits voltage to ≤53.9 V during 11.1 A surge, preventing regulator overvoltage failure and ensuring MCU reset integrity. |
Use Scenario: Shielding CAN transceiver data lines from ESD and inductive coupling in engine bay harnesses. IC Role / Device Role: Point-of-entry TVS on differential pair, grounded via short trace to chassis. Use Value: Clamps fast transients below 53.9 V while maintaining <1.0 µA leakage at 33.3 V, preserving signal integrity and bus timing. |
| ADAS Camera Module Power Input | Electric Power Steering (EPS) Motor Driver Feedback |
Use Scenario: Safeguarding 5 V/3.3 V imaging sensor power supplies against ignition noise and alternator ripple. IC Role / Device Role: Secondary protection stage after bulk capacitor, placed adjacent to sensor PMIC. Use Value: Delivers 600 W pulse handling in ultra-low profile SlimSMAW package, minimizing board height in space-constrained camera housings. |
Use Scenario: Protecting analog feedback signals (e.g., motor phase current sense) from commutation spikes in EPS H-bridge drivers. IC Role / Device Role: Unidirectional TVS on low-side shunt amplifier inputs, referenced to power ground. Use Value: Withstands repeated 11.1 A surges at 185 °C junction temperature, ensuring long-term reliability in thermally aggressive EPS enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Higher VBR (34.2–37.8 V), lower PPPM (400 W), same DO-214AC package but larger footprint than SlimSMAW | Limited to non-automotive industrial use; not AEC-Q101 qualified; lacks 185 °C rating | Choose when cost is primary constraint and automotive qualification or high-temperature operation is unnecessary |
| TPSMF36A | Same VWM/VBR range, 600 W rating, AEC-Q101 qualified, but in SOD-128 (DO-221AD) - identical package to TA6L39AHM3/H | Direct form-fit replacement with identical mounting and thermal performance; slightly higher VC (56.5 V) | Select when needing second-source availability with no PCB or thermal redesign required |
Compared with SMAJ36A-E3/57T and TPSMF36A, TA6L39AHM3/H offers superior high-temperature capability (185 °C vs. 150 °C), tighter VBR tolerance (±5% vs. ±10%), and halogen-free compliance - critical for next-generation automotive electronics requiring extended lifetime under thermal stress.
Availability
TA6L39AHM3/H is available at Aetrix Electronics and suitable for automotive power line protection, engine control unit (ECU) signal conditioning, and ADAS camera module designs requiring stable component supply, AEC-Q101 qualification, and high-temperature reliability.
Supply support for TA6L39AHM3/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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The TA6L39AHM3/H belongs to Vishay's PAR® series of transient voltage suppressors, engineered specifically for robust, high-temperature circuit protection in automotive electronics subject to harsh thermal and electrical stress.
FAQ
What is the clamping voltage of TA6L39AHM3/H at its rated peak pulse current?
The TA6L39AHM3/H has a maximum clamping voltage (VC) of 53.9 V at its rated peak pulse current (IPPM) of 11.1 A under the standard 10/1000 µs waveform. This value is measured per Figure 3 in the official Vishay datasheet (Document Number: 87415) and ensures downstream components remain within safe operating voltage limits during surge events.
Is TA6L39AHM3/H qualified for automotive applications?
Yes, TA6L39AHM3/H is AEC-Q101 qualified and meets JESD 201 Class 2 whisker test requirements. Its 185 °C maximum junction temperature, halogen-free construction, and MSL Level 1 reflow compatibility make it suitable for under-hood automotive systems including ECUs, ADAS modules, and electric power steering controllers.
What package type does TA6L39AHM3/H use, and what are its key mechanical advantages?
TA6L39AHM3/H uses the SlimSMAW (DO-221AD) package - a low-profile surface-mount outline with 0.118" (3.00 mm) maximum height. Its advantages include reduced PCB footprint versus SMA/SMB, UL 94 V-0 flammability rating, matte tin-plated leads compliant with J-STD-002, and optimized thermal resistance (RθJM = 15 °C/W) for high-power transient dissipation.
How does the temperature coefficient affect TA6L39AHM3/H's breakdown voltage over temperature?
The TA6L39AHM3/H has a typical temperature coefficient (αT) of 0.091 %/°C for VBR. Using the formula VBR at TJ = VBR at 25 °C × (1 + αT × (TJ − 25)), VBR increases by ~1.4 V at 150 °C ambient, ensuring consistent clamping margin across the full -65 °C to +185 °C operating range.
What is the maximum reverse leakage current of TA6L39AHM3/H at its stand-off voltage?
At its stand-off voltage (VWM) of 33.3 V and ambient temperature of 25 °C, TA6L39AHM3/H exhibits a maximum reverse leakage current (IR) of 1.0 µA. At elevated junction temperature (150 °C), leakage remains ≤5.0 µA - a critical parameter for preserving signal integrity in low-power sensor interfaces and always-on automotive circuits.
TA6L39AHM3/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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 11.1A
- 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)
TA6L39AHM3/H FAQ
1.How can I place an order for TA6L39AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L39AHM3/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 TA6L39AHM3/H reliable?
The price and inventory of TA6L39AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L39AHM3/H is usually 5 days.
3.What payment methods are accepted for TA6L39AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L39AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L39AHM3/H?
TA6L39AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L39AHM3/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 TA6L39AHM3/H?
For technical support, including TA6L39AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L39AHM3/H requirements.
6.How does Aetrix verify that TA6L39AHM3/H is sourced from the original manufacturer or authorized distributors?
All TA6L39AHM3/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 TA6L39AHM3/H meets industry standards.
7.What is the process for return or replacement of TA6L39AHM3/H?
All TA6L39AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6L39AHM3/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 TA6L39AHM3/H part is unused and in its original packaging.
Return procedure for TA6L39AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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