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Vishay General Semiconductor - Diodes Division TA6L27AHM3/I
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- Part No.:
- TA6L27AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L27AHM3/I.pdf
- Description:
- 600W,27V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:7,264
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Product details
Overview
TA6L27AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SlimSMAW (DO-221AD) package, designed for automotive-grade circuit protection. It features 27.0 V nominal breakdown voltage (VBR), 23.1 V maximum standoff voltage (VWM), 600 W peak pulse power (10/1000 µs), 16.0 A peak pulse current (IPPM), and 37.5 V maximum clamping voltage (VC) - deployed to safeguard MOSFETs and sensor signal lines against inductive switching transients.
For engineers reviewing the TA6L27AHM3/I datasheet, TA6L27AHM3/I pinout, TA6L27AHM3/I application, or TA6L27AHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, SlimSMAW mechanical dimensions, and direct alternatives for automotive electronics protection design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for junction stability up to TJ = 185 °C, enabling high-reliability operation in under-hood automotive environments. Its unidirectional configuration provides low-leakage reverse blocking (≤1.0 µA at VWM) and precise clamping response with ±5% VBR tolerance at IT = 1.0 mA.
The device complies with JEDEC JESD201 Class 2 whisker testing and MSL Level 1 reflow profile (260 °C peak), and its SlimSMAW package delivers 120 °C/W typical junction-to-ambient thermal resistance on FR4 PCB - supporting robust surge energy dissipation without thermal runaway during repetitive transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V at IT = 1.0 mA - defines precise overvoltage triggering threshold for reliable system-level ESD/surge immunity |
| VWM | 23.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA, ensuring minimal standby power loss |
| VC @ IPPM | 37.5 V - clamped voltage during 16.0 A 10/1000 µs surge, limiting downstream IC stress below safe logic thresholds |
| PPPM | 600 W - peak surge power handling capability, validated per IEC 61000-4-5 waveform standards |
| TJ max | +185 °C - enables operation in high-temperature automotive zones (e.g., engine control units, battery management systems) |
| AEC-Q101 | Qualified - certified for automotive electronic systems per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
Package: SlimSMAW (DO-221AD) - low-profile surface-mount case with cathode band marking; 0.197" × 0.142" footprint, 0.091" height, matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's ground reference; forms low-impedance path to shunt surge current away from load |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected signal/power line; voltage clamping occurs when line exceeds VBR, diverting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier structure ensures stable VBR drift <0.087%/°C and long-term reliability under thermal cycling |
| High-temperature capability | Rated for continuous operation up to +185 °C junction temperature - supports placement near heat sources in automotive ECUs |
| Halogen-free & RoHS | HM3 suffix denotes halogen-free molding compound and lead-free terminations compliant with EU RoHS Directive 2011/65/EU |
| MSL Level 1 | Reflow-compatible up to 260 °C peak without moisture sensitivity concerns - eliminates pre-bake requirement in SMT assembly |
Applications
| Automotive Engine Control Unit (ECU) | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 12 V supply rails and CAN/LIN bus interfaces from load-dump and inductive kickback transients during alternator regulation or solenoid deactivation. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power rail and chassis ground, activated within nanoseconds upon voltage exceeding 27 V. Use Value: Limits transient overshoot to ≤37.5 V, preventing latch-up or gate oxide damage in MCU power management ICs and driver FETs. | Use Scenario: Shielding LIN bus signal lines (e.g., door module sensors, seat position feedback) from ESD events and board-level coupling noise. IC Role / Device Role / Timing Role: Low-capacitance (<30 pF) TVS connected between LIN+ and ground, providing fast-response clamping without signal integrity degradation. Use Value: Maintains LIN physical layer compliance by holding clamping voltage below 40 V while adding <0.5 pF parasitic capacitance to data lines. |
| Automotive Battery Management System (BMS) | Industrial Motor Drive Control Board |
Use Scenario: Safeguarding cell voltage monitoring inputs and communication interfaces (e.g., isolated SPI) against battery disconnect surges and relay bounce. IC Role / Device Role / Timing Role: Primary overvoltage protector on analog front-end inputs, rated for 185 °C ambient operation near lithium-ion pack terminals. Use Value: Enables direct mounting adjacent to high-current paths without derating, preserving measurement accuracy across full automotive temperature range (−40 °C to +125 °C ambient). | Use Scenario: Suppressing commutation spikes on gate drive signal lines feeding IGBTs in 3-phase inverters used in HVAC compressors or pump controllers. IC Role / Device Role / Timing Role: Fast-clamping TVS placed at gate driver output to prevent false turn-on caused by dV/dt-induced Miller current. Use Value: Clamps gate-source voltage to <40 V within 1 ns, eliminating risk of unintended IGBT conduction during high-speed switching transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A-E3/5T (Vishay) | Same SlimSMA (DO-214AC) package; 28.0 V VBR, 31.1 V VC @ 15.3 A; lower PPPM = 400 W | Lower surge rating limits use to non-automotive industrial controls; not AEC-Q101 qualified | Select when cost-sensitive non-automotive designs require proven Vishay TVS performance without qualification overhead |
| TPSMD28A (Texas Instruments) | DO-214AB package; 28.0 V VBR, 42.6 V VC @ 14.1 A; higher clamping voltage, same 600 W rating | Higher VC may exceed safe margin for 3.3 V logic interfaces; requires layout review for thermal relief | Choose where TI ecosystem integration or dual sourcing is prioritized, accepting 5.1 V higher clamping than TA6L27AHM3/I |
Compared with SMAJ28A-E3/5T and TPSMD28A, TA6L27AHM3/I offers tighter VBR tolerance (±5%), lower clamping voltage (37.5 V vs. ≥42.6 V), and AEC-Q101 qualification - making it the preferred choice for automotive signal-line protection where voltage margin and reliability certification are critical.
Availability
TA6L27AHM3/I is available at Aetrix Electronics and suitable for automotive engine control units, battery management systems, and industrial motor drive control boards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TA6L27AHM3/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 optoelectronics with emphasis on high-reliability and automotive-grade solutions.
The TA6L series belongs to Vishay's PAR® family of high-power TVS diodes engineered specifically for automotive electronics protection - delivering enhanced thermal stability, AEC-Q101 qualification, and compact SlimSMAW packaging for space-constrained ECU designs.
FAQ
What is the breakdown voltage tolerance for TA6L27AHM3/I?
The TA6L27AHM3/I has a breakdown voltage (VBR) tolerance of ±5% around its nominal 27.0 V value, specified as 25.7 V (min) to 28.4 V (max) at IT = 1.0 mA. This tight tolerance ensures consistent clamping behavior across production lots and supports robust design margins in automotive safety-critical circuits where overvoltage thresholds must remain predictable under temperature variation and aging.
Is TA6L27AHM3/I qualified for automotive applications?
Yes, TA6L27AHM3/I is AEC-Q101 qualified and meets JESD201 Class 2 whisker test requirements. The HM3 suffix confirms halogen-free, RoHS-compliant construction and qualification for automotive use. It operates reliably from −65 °C to +185 °C junction temperature, supporting deployment in engine compartments, battery packs, and other high-stress automotive subsystems where extended temperature range and process reliability are mandatory.
What is the maximum clamping voltage of TA6L27AHM3/I during a surge event?
The maximum clamping voltage (VC) of TA6L27AHM3/I is 37.5 V at its rated peak pulse current of 16.0 A (10/1000 µs waveform). This value represents the upper limit of voltage seen by downstream components during worst-case surge conditions, enabling designers to verify that protected ICs - such as 3.3 V or 5 V microcontrollers - remain within absolute maximum ratings even under full-rated transient stress.
Does TA6L27AHM3/I have a defined thermal resistance specification?
Yes, TA6L27AHM3/I specifies RθJA = 120 °C/W (typical) and 150 °C/W (max) junction-to-ambient, measured per JEDEC 51-2A on FR4 PCB with standard 2 oz copper footprint. Its RθJM is 12 °C/W (typical), indicating efficient heat transfer to the mounting pad - critical for sustaining repeated surge events in thermally constrained automotive modules without thermal runaway.
What does the "HM3" suffix indicate in TA6L27AHM3/I?
The "HM3" suffix in TA6L27AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance. It also identifies the packaging format: 13" diameter plastic tape and reel, with base quantity 14,000 units. This suffix distinguishes it from non-qualified variants (e.g., TA6L27A) and confirms compliance with automotive material and reliability standards required for Tier 1 supplier BOMs.
TA6L27AHM3/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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
TA6L27AHM3/I FAQ
1.How can I place an order for TA6L27AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L27AHM3/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 TA6L27AHM3/I reliable?
The price and inventory of TA6L27AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L27AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L27AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L27AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L27AHM3/I?
TA6L27AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L27AHM3/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 TA6L27AHM3/I?
For technical support, including TA6L27AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L27AHM3/I requirements.
6.How does Aetrix verify that TA6L27AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L27AHM3/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 TA6L27AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L27AHM3/I?
All TA6L27AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L27AHM3/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 TA6L27AHM3/I part is unused and in its original packaging.
Return procedure for TA6L27AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L27AHM3/I Tags
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