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Vishay General Semiconductor - Diodes Division TA6L20AHM3/I
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- Part No.:
- TA6L20AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L20AHM3/I.pdf
- Description:
- 600W,20V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,819
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Product details
Overview
TA6L20AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in SlimSMAW (DO-221AD) package, rated for 20 V breakdown voltage (VBR = 19.0–21.0 V at 1 mA), 17.1 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), and 185 °C maximum junction temperature - designed for automotive-grade overvoltage protection of MOSFETs and sensor signal lines.
For engineers reviewing the TA6L20AHM3/I datasheet, TA6L20AHM3/I pinout, TA6L20AHM3/I application, or TA6L20AHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, clamping performance at 21.7 A peak pulse current, and SlimSMAW mechanical compatibility for high-reliability PCB layouts.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable clamping under repetitive transients while maintaining low leakage (<1 µA at VWM) and tight VBR tolerance (±5%). Its unidirectional configuration supports DC-biased protection paths with cathode-band polarity marking.
Designed for operation up to TJ = 185 °C and qualified per AEC-Q101, the TA6L20AHM3/I meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility (260 °C peak), enabling use in under-hood automotive modules without derating penalties below 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 19.0 / 20.0 / 21.0 V at 1 mA - defines precise voltage threshold where clamping initiates under transient stress |
| VWM | 17.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| IPPM | 21.7 A (10/1000 µs waveform) - peak surge current it safely clamps without failure |
| VC at IPPM | 27.7 V - clamped voltage seen by protected circuit during full-rated surge event |
| TJ max | +185 °C - enables placement near high-temperature components (e.g., power stages, engine control units) |
| Package | SlimSMAW (DO-221AD) - low-profile, halogen-free, RoHS-compliant, AEC-Q101 qualified surface-mount case |
| Polarity | Unidirectional, cathode marked by band - requires correct orientation in series with protected line |
Pinout & Package
SlimSMAW (DO-221AD) is a two-terminal surface-mount package with cathode identified by a color band on the top surface. The device has no internal leads or exposed die pad; both terminals are solderable matte tin-plated copper alloy leads compliant with J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for transient energy path | Connected to protected line (e.g., sensor supply or gate drive); conducts during reverse-biased clamping |
| Cathode | Reference/return terminal | Marked by color band; tied to system ground or low-impedance return path to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including powertrain and ADAS modules requiring long-term reliability under thermal cycling |
| Junction passivation | Reduces surface leakage and improves long-term stability under high humidity and bias stress |
| MSL Level 1 rating | Enables single-pass reflow assembly at 260 °C peak without moisture-induced popcorn failure |
| 185 °C TJ capability | Eliminates need for thermal derating in under-hood applications up to ambient 125 °C |
| 600 W peak pulse power | Provides robust protection against ISO 7637-2 Pulse 1, 2a, and 5a transients in 12 V vehicle systems |
Applications
| Automotive Sensor Protection | Power MOSFET Gate Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to load-dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and ground to clamp negative-going transients before they reach ADC input or signal conditioning IC. Use Value: Limits clamped voltage to 27.7 V at 21.7 A, preventing damage to 3.3 V or 5 V rail-tied op-amps and ensuring signal integrity during ESD events per ISO 10605. |
Use Scenario: Safeguarding gate-source junctions of N-channel MOSFETs used in high-side switch drivers subjected to back-EMF from solenoids and relays. IC Role / Device Role / Timing Role: TVS connected between gate and source pins to absorb fast-rising voltage spikes before gate oxide breakdown occurs. Use Value: With 17.1 V stand-off and 27.7 V clamping, it protects 20 V-rated gate oxides while allowing normal 12 V gate drive operation without leakage interference. |
| Infotainment Power Rail Clamping | Body Control Module I/O Protection |
|
Use Scenario: Suppressing transients on 5 V or 3.3 V power rails feeding microcontrollers and audio codecs in head units affected by battery disconnect events. IC Role / Device Role / Timing Role: Parallel-connected TVS across regulated supply rail to shunt surge energy away from downstream LDOs and digital ICs. Use Value: Delivers 600 W peak pulse handling with <1 µA leakage at 17.1 V, minimizing standby current impact while meeting CISPR 25 Class 5 conducted emission requirements. |
Use Scenario: Shielding LIN bus transceivers and GPIO lines in door modules and lighting controllers from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS installed on each LIN data line (LIN_H/L) referenced to local ground to maintain signal integrity during hot-plug and static discharge. Use Value: SlimSMAW footprint allows dense placement near connectors; 27.7 V clamping ensures LIN physical layer remains within ±40 V fault tolerance window defined in ISO 17987-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A-E3/5A (Vishay) | Same VWM/VBR range but SMA (DO-214AC) package; RθJA = 140 °C/W vs. 120 °C/W for TA6L20AHM3/I | Higher thermal resistance limits power density in compact layouts; lacks AEC-Q101 qualification | Select when cost sensitivity outweighs automotive qualification or thermal performance needs |
| TPSMA6L20A (Texas Instruments) | Identical electrical specs and SlimSMAW package; AEC-Q101 qualified; slightly higher VC = 28.5 V at same IPPM | Same mounting and layout compatibility; marginally reduced clamping margin for ultra-sensitive 3.3 V logic | Prefer when TI supply chain alignment or dual-sourcing strategy is required |
Compared with SMAJ20A-E3/5A and TPSMA6L20A, the TA6L20AHM3/I offers best-in-class thermal resistance (120 °C/W), guaranteed AEC-Q101 compliance, and lowest clamping voltage (27.7 V), making it optimal for space-constrained, high-temperature automotive nodes where protection margin and long-term reliability are critical.
Availability
TA6L20AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, power MOSFET gate safeguarding, and infotainment power rail clamping requiring stable component supply across production lifecycles.
Supply support for TA6L20AHM3/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 high-reliability, automotive-qualified components.
The TA6L20AHM3/I belongs to Vishay's PAR® family of transient voltage suppressors engineered specifically for harsh-environment automotive applications demanding AEC-Q101 qualification, 185 °C operation, and robust surge immunity.
FAQ
What is the maximum clamping voltage of the TA6L20AHM3/I at its rated peak pulse current?
The TA6L20AHM3/I exhibits a maximum clamping voltage (VC) of 27.7 V when subjected to its rated peak pulse current (IPPM) of 21.7 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C and represents the upper limit of voltage imposed on the protected circuit during full-rated transient events - critical for verifying compatibility with downstream IC voltage tolerances.
Is the TA6L20AHM3/I qualified for automotive applications?
Yes, the TA6L20AHM3/I is AEC-Q101 qualified and meets JESD201 Class 2 whisker test requirements. It is rated for operation up to +185 °C junction temperature and complies with MSL Level 1 reflow standards, making it suitable for under-hood and body-control module applications where long-term reliability under thermal and mechanical stress is mandatory.
What package type does the TA6L20AHM3/I use, and what are its key mechanical features?
The TA6L20AHM3/I uses the SlimSMAW (DO-221AD) package - a low-profile, surface-mount case with dimensions of 4.00 × 2.70 × 1.10 mm. Key features include UL 94 V-0 molding compound, matte tin-plated leads solderable per J-STD-002, and cathode identification via a visible color band. Its compact size supports high-density PCB layouts in automotive ECUs.
How does the TA6L20AHM3/I compare to standard SMA-package TVS diodes in thermal performance?
The TA6L20AHM3/I achieves a typical thermal resistance junction-to-ambient (RθJA) of 120 °C/W, significantly lower than the ~140 °C/W typical of SMA (DO-214AC) devices like SMAJ20A. This 14% improvement enables higher sustained power dissipation in thermally constrained environments - especially valuable in sealed automotive enclosures where airflow is limited.
What is the reverse leakage current specification for the TA6L20AHM3/I at its stand-off voltage?
At its rated stand-off voltage (VWM) of 17.1 V and ambient temperature of 25 °C, the TA6L20AHM3/I specifies a maximum reverse leakage current (IR) of 1.0 µA. At elevated junction temperature (TJ = 150 °C), leakage increases to 5.0 µA - a controlled, documented rise that maintains signal integrity in high-temperature sensor interfaces without compromising system quiescent current budgets.
TA6L20AHM3/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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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)
TA6L20AHM3/I FAQ
1.How can I place an order for TA6L20AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L20AHM3/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 TA6L20AHM3/I reliable?
The price and inventory of TA6L20AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L20AHM3/I is usually 5 days.
3.What payment methods are accepted for TA6L20AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L20AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L20AHM3/I?
TA6L20AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L20AHM3/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 TA6L20AHM3/I?
For technical support, including TA6L20AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L20AHM3/I requirements.
6.How does Aetrix verify that TA6L20AHM3/I is sourced from the original manufacturer or authorized distributors?
All TA6L20AHM3/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 TA6L20AHM3/I meets industry standards.
7.What is the process for return or replacement of TA6L20AHM3/I?
All TA6L20AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L20AHM3/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 TA6L20AHM3/I part is unused and in its original packaging.
Return procedure for TA6L20AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6L20AHM3/I Tags
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