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Vishay General Semiconductor - Diodes Division TA6L43AHM3/I
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- Part No.:
- TA6L43AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L43AHM3/I.pdf
- Description:
- 600W,43V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,026
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Product details
Overview
TA6L43AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in the PAR® family, designed for automotive-grade overvoltage protection of signal lines and power rails. It features a 43.0 V nominal breakdown voltage (VBR), 36.8 V maximum standoff voltage (VWM), 600 W peak pulse power (10/1000 µs), 10.1 A peak pulse current (IPPM), and 59.3 V clamping voltage (VC) - all validated at TA = 25 °C.
For engineers reviewing the TA6L43AHM3/I datasheet, TA6L43AHM3/I pinout, TA6L43AHM3/I application, or TA6L43AHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction temperature rating, SlimSMAW (DO-221AD) package compatibility, and suitability for high-reliability automotive sensor interface and MOSFET gate protection circuits.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping performance under repetitive surge stress and elevated ambient temperatures. Its unidirectional configuration enables precise reverse-biased transient suppression on DC-biased lines without forward conduction interference.
The device operates within a -65 °C to +185 °C junction temperature range and exhibits a low 0.092 %/°C temperature coefficient of VBR, ensuring predictable voltage threshold drift across automotive thermal profiles. Thermal resistance values (RθJA = 120–150 °C/W, RθJM = 12–15 °C/W) are specified per JEDEC 51-2A and 51-14 standards on FR4 PCB with standard footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 40.9 / 43.0 / 45.2 V - defines reliable turn-on threshold for transient detection and clamping initiation |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| IPPM | 10.1 A - peak surge current it can safely divert during 10/1000 µs transients without failure |
| VC | 59.3 V - clamped voltage seen by protected circuit at IPPM, limiting downstream stress |
| PPPM | 600 W - peak pulse power handling capability under standardized 10/1000 µs waveform |
| TJ max | +185 °C - enables operation in under-hood automotive environments without derating |
| Package | SlimSMAW (DO-221AD) - low-profile, halogen-free, RoHS-compliant, MSL Level 1, 260 °C reflow compatible |
Pinout & Package
SlimSMAW (DO-221AD) is a surface-mount, single-diode package with cathode indicated by a color band. The device has two terminals: Anode and Cathode - configured for unidirectional transient suppression in series with the protected line.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Line side terminal | Connected to the line being protected; conducts during reverse transient when cathode is held at higher potential |
| Cathode | Clamp reference terminal | Marked with color band; tied to system ground or lower-potential rail to establish clamping reference point |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use with JESD22-A108 reliability testing and JESD201 Class 2 whisker resistance |
| Junction temperature rating | 185 °C maximum - supports placement near heat sources (e.g., power modules, ECUs) without thermal derating |
| Low-profile SlimSMAW package | 0.033 g unit weight, 0.173 × 0.091 × 0.035 in (4.40 × 2.30 × 0.90 mm) footprint - ideal for space-constrained automotive PCB layouts |
| Optimized junction passivation | Passivated anisotropic rectifier structure - ensures stable VBR and low leakage (<1 μA at VWM) over lifetime and temperature |
| High clamping efficiency | VC/VBR ratio of ~1.38 - minimizes overvoltage overshoot while maintaining robust surge margin |
Applications
| Automotive Sensor Interface Protection | MOSFET Gate Driver Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control units against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp surges before they reach sensitive analog front-end circuitry. Use Value: Limits transient voltage to ≤59.3 V at 10.1 A, preserving signal integrity and preventing ADC saturation or latch-up in harsh 12 V/24 V vehicle electrical systems. |
Use Scenario: Safeguarding high-side or low-side N-channel MOSFET gate drivers in motor control modules from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: TVS connected between gate and source to suppress dv/dt-induced ringing and ESD events that could exceed gate oxide breakdown limits. Use Value: Clamps gate-source voltage to 59.3 V within nanoseconds, preventing irreversible gate oxide damage while maintaining <1 μA leakage at 36.8 V standby bias. |
| Infotainment System Data Line Protection | Body Control Module Power Rail Clamp |
Use Scenario: Shielding LIN bus or CAN FD signal lines in head units and display modules from electrostatic discharge and board-level coupling noise. IC Role / Device Role / Timing Role: Unidirectional TVS installed on each data line, referenced to local ground, to absorb sub-100 ns ESD pulses per IEC 61000-4-2 Level 4. Use Value: Achieves <500 ps response time and 59.3 V clamping at 10.1 A, meeting stringent EMC immunity requirements without distorting low-voltage differential signaling. |
Use Scenario: Suppressing load-dump transients on 12 V supply rails feeding door lock actuators, window lift motors, and lighting drivers in BCMs. IC Role / Device Role / Timing Role: TVS placed at power entry point to shunt up to 600 W surge energy into chassis ground, protecting downstream LDOs and microcontrollers. Use Value: Handles 10/1000 µs surges up to 10.1 A while maintaining 36.8 V standoff - enabling robust operation across ISO 7637-2 Pulse 5a/b test profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/57T | Same VBR (43 V), but lower PPPM = 400 W; SMA package (DO-214AC), larger footprint and higher RθJA (~160 °C/W) | Limited to less severe surge environments; not AEC-Q101 qualified; unsuitable for under-hood deployment | Select when cost sensitivity outweighs automotive qualification and thermal performance needs |
| SMCJ43A | Higher PPPM = 1500 W, same VBR; SMC package (DO-214AB), larger size and 2× unit weight; RθJA ≈ 100 °C/W | Better suited for primary power rail clamping (e.g., alternator output), not compact signal-line protection | Choose for higher-energy transients where PCB space allows and thermal management is prioritized over miniaturization |
Compared with SMAJ43A-E3/57T and SMCJ43A, TA6L43AHM3/I delivers optimal balance of AEC-Q101 compliance, 600 W surge capacity, and ultra-compact SlimSMAW packaging - making it uniquely suitable for space- and reliability-critical automotive signal-line protection where both thermal resilience and layout density matter.
Availability
TA6L43AHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, MOSFET gate driver circuits, infotainment data lines, and body control module power rails requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TA6L43AHM3/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, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade qualification.
The TA6LxxA series belongs to Vishay's PAR® transient suppression platform, engineered specifically for high-temperature, high-reliability automotive applications where consistent clamping behavior and AEC-Q101 validation are mandatory.
FAQ
What is the maximum junction temperature rating for TA6L43AHM3/I?
The TA6L43AHM3/I is rated for a maximum junction temperature (TJ) of +185 °C, verified per AEC-Q101 stress testing. This enables reliable operation in under-hood automotive environments where ambient temperatures exceed 125 °C, and eliminates need for thermal derating in most ECU and BCM designs using the TA6L43AHM3/I.
Is TA6L43AHM3/I AEC-Q101 qualified?
Yes, TA6L43AHM3/I is AEC-Q101 qualified and meets JESD 201 Class 2 whisker test requirements. The HM3 suffix explicitly denotes halogen-free, RoHS-compliant, and automotive-qualified construction - confirmed in Vishay document 87415, revision 17-Sep-2021.
What does the "HM3" suffix indicate in TA6L43AHM3/I?
The "HM3" suffix in TA6L43AHM3/I identifies the halogen-free, RoHS-compliant, AEC-Q101-qualified version in SlimSMAW (DO-221AD) package. It also specifies tape-and-reel packaging: "I" denotes 13-inch reels with 14,000 units per reel, per Vishay's ordering information table.
What is the clamping voltage of TA6L43AHM3/I at its rated peak pulse current?
The TA6L43AHM3/I has a maximum clamping voltage (VC) of 59.3 V at its rated peak pulse current (IPPM) of 10.1 A under the 10/1000 µs waveform. This value is measured and guaranteed per Vishay's electrical characteristics table in document 87415.
How does TA6L43AHM3/I compare to standard SMAJ43A in terms of package and thermal performance?
TA6L43AHM3/I uses the SlimSMAW (DO-221AD) package - 30% smaller footprint and lower profile than SMAJ43A's SMA (DO-214AC). Its RθJA is 120–150 °C/W versus ~160 °C/W for SMAJ43A, enabling better thermal dissipation in dense automotive PCB layouts where the TA6L43AHM3/I is deployed.
TA6L43AHM3/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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 10.1A
- 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)
TA6L43AHM3/I FAQ
1.How can I place an order for TA6L43AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L43AHM3/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 TA6L43AHM3/I reliable?
The price and inventory of TA6L43AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L43AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L43AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L43AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L43AHM3/I?
TA6L43AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L43AHM3/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 TA6L43AHM3/I?
For technical support, including TA6L43AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L43AHM3/I requirements.
6.How does Aetrix verify that TA6L43AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L43AHM3/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 TA6L43AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L43AHM3/I?
All TA6L43AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L43AHM3/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 TA6L43AHM3/I part is unused and in its original packaging.
Return procedure for TA6L43AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L43AHM3/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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