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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division TA6L47AHM3/I

Name: TA6L47AHM3/I
Brand: Vishay General Semiconductor - Diodes Division
SKU: TA6L47AHM3/I
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TA6L47AHM3/I

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-221AC, SMA Flat Leads

Datasheet:: TA6L47AHM3/I.pdf

Description:: 600W,47V 5%, SLIMSMAW PAR

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Product details

Overview

TA6L47AHM3/I 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 47 V breakdown voltage (V_BR = 44.7–49.4 V), 40.2 V stand-off voltage (V_WM), 600 W peak pulse power (10/1000 μs), 9.3 A peak pulse current (I_PPM), and 64.8 V maximum clamping voltage (V_C) - deployed on signal lines of automotive sensor units to suppress inductive switching transients.

For engineers reviewing the TA6L47AHM3/I datasheet, TA6L47AHM3/I pinout, TA6L47AHM3/I application, or TA6L47AHM3/I equivalent, this page delivers verified electrical specs, SlimSMAW package dimensions, AEC-Q101 qualification status, thermal derating curves, and direct alternatives for automotive ESD/surge protection design-in.

Technical Context

This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for high-reliability operation up to T_J = 185 °C. Its unidirectional configuration provides low-leakage reverse blocking (I_R ≤ 1.0 μA at V_WM) and precise clamping response under fast-rising transients.

The device complies with JEDEC JESD201 Class 2 whisker testing and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow tolerance. Its SlimSMAW (DO-221AD) footprint enables high-power density layout while maintaining low thermal resistance (R_θJM ≤ 15 °C/W).

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR (min/typ/max)	44.7 / 47.0 / 49.4 V - ensures reliable turn-on above system operating voltage while avoiding false triggering
V_WM	40.2 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA, matching 36–40 V automotive supply rails
V_C @ I_PPM	64.8 V - clamps 9.3 A surge to safe level for downstream ICs like CAN transceivers or MCU I/O
P_PPM	600 W (10/1000 μs) - sustains high-energy load-dump and ISO 7637-2 Pulse 5a transients
T_J max	+185 °C - supports under-hood placement in engine control modules without thermal derating loss
AEC-Q101	Qualified - certified for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling
Package	SlimSMAW (DO-221AD) - 0.197 × 0.142 inch outline with 0.055 inch min. cathode band spacing for automated optical inspection

Pinout & Package

SlimSMAW (DO-221AD) is a surface-mount, single-diode package with cathode marked by a color band. Anode and cathode terminals are located on opposite ends of the molded body; polarity must be observed during PCB layout to ensure correct transient clamping direction.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Transient current sink path	Connected to protected line (e.g., sensor output); conducts surge current to ground when V_BR exceeded
Cathode	Reference node / ground return	Connected to system ground; forms low-impedance path for clamped energy dissipation

Key Features

Feature	Design Value
High-temperature junction rating	T_J = 185 °C enables placement near heat sources (e.g., powertrain ECUs) without derating
AEC-Q101 qualification + JESD201 Class 2	Validated reliability for automotive safety-critical systems requiring whisker-free solder joints
Low-profile SlimSMAW package	0.032 inch height allows integration into space-constrained ADAS camera modules and radar sensors
600 W peak pulse power	Withstands ISO 16750-2 load dump surges up to 120 V for 400 ms without failure
0.092 %/°C V_BR tempco	Stable clamping threshold across -40 to +150 °C ambient, critical for engine bay applications

Applications

Automotive Sensor Protection	CAN Bus Line Protection
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input to limit transient voltage to <65 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V ADC front-ends while maintaining <1.0 μA leakage at 40.2 V nominal rail.	Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD events and battery disconnect transients in body control modules. IC Role / Device Role / Timing Role: Dual TVS array (one per line) referenced to chassis ground, leveraging low capacitance (<100 pF) to preserve 1 Mbps signal integrity. Use Value: Clamps ±30 kV contact ESD (IEC 61000-4-2) without distorting edge rate or introducing jitter on CAN waveforms.
Power Supply Rail Protection	Infotainment Display Interface
Use Scenario: Guarding 12 V input rails of DC/DC converters powering infotainment head units against load dump pulses per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary TVS placed upstream of input filter capacitor to absorb 600 W surge energy within 10/1000 μs waveform. Use Value: Limits rail overshoot to <70 V, preventing overvoltage shutdown of buck controller ICs and preserving system uptime.	Use Scenario: Shielding LVDS or FPD-Link III video data lines connecting head unit to TFT display from cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on each differential pair, grounded via short trace to minimize stub inductance. Use Value: Maintains <0.5 dB insertion loss at 1 GHz while suppressing >8 kV air discharge transients without pixel corruption.

Automotive Sensor Protection

CAN Bus Line Protection

Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine control units exposed to inductive kickback from solenoid drivers.

IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input to limit transient voltage to <65 V.

Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V ADC front-ends while maintaining <1.0 μA leakage at 40.2 V nominal rail.

Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD events and battery disconnect transients in body control modules.

IC Role / Device Role / Timing Role: Dual TVS array (one per line) referenced to chassis ground, leveraging low capacitance (<100 pF) to preserve 1 Mbps signal integrity.

Use Value: Clamps ±30 kV contact ESD (IEC 61000-4-2) without distorting edge rate or introducing jitter on CAN waveforms.

Power Supply Rail Protection

Infotainment Display Interface

Use Scenario: Guarding 12 V input rails of DC/DC converters powering infotainment head units against load dump pulses per ISO 7637-2 Pulse 5a.

IC Role / Device Role / Timing Role: Primary TVS placed upstream of input filter capacitor to absorb 600 W surge energy within 10/1000 μs waveform.

Use Value: Limits rail overshoot to <70 V, preventing overvoltage shutdown of buck controller ICs and preserving system uptime.

Use Scenario: Shielding LVDS or FPD-Link III video data lines connecting head unit to TFT display from cable discharge events.

IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on each differential pair, grounded via short trace to minimize stub inductance.

Use Value: Maintains <0.5 dB insertion loss at 1 GHz while suppressing >8 kV air discharge transients without pixel corruption.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ47A-E3/5A (Vishay)	Same V_BR range (44.7–49.4 V) but SMA package (DO-214AC); R_θJA = 160 °C/W vs. 150 °C/W for TA6L47AHM3/I	Lower power density; unsuitable for high-ambient under-hood use where 185 °C T_J is required	Select TA6L47AHM3/I when AEC-Q101 + SlimSMAW footprint + 185 °C operation are mandatory
1.5SMC47A (ON Semiconductor)	Same 47 V rating but SMC (DO-214AB) package; not AEC-Q101 qualified; T_J max = 175 °C	Lacks automotive qualification and high-temp capability; limited to cabin or non-safety systems	Choose TA6L47AHM3/I for production automotive programs requiring full AEC-Q101 compliance and extended temperature margin

Compared with SMAJ47A-E3/5A and 1.5SMC47A, TA6L47AHM3/I delivers superior thermal performance (185 °C T_J, lower R_θJM), validated automotive qualification, and smaller SlimSMAW footprint - making it the preferred choice for next-generation ADAS and powertrain modules where space, reliability, and temperature resilience are critical.

Availability

TA6L47AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, CAN bus line hardening, and power supply rail surge suppression requiring stable component supply across long-life vehicle platforms.

Supply support for TA6L47AHM3/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, MOSFETs, and optoelectronics, with emphasis on high-reliability, high-performance components for automotive, industrial, and computing markets.

The TA6L47AHM3/I belongs to Vishay's PAR® series of transient voltage suppressors, engineered specifically for robust overvoltage protection in harsh automotive environments where AEC-Q101 compliance and 185 °C operation are essential.

FAQ

What is the clamping voltage of TA6L47AHM3/I at its rated peak pulse current?

The TA6L47AHM3/I has a maximum clamping voltage (V_C) of 64.8 V when subjected to its rated peak pulse current (I_PPM) of 9.3 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 ICs remain within safe operating voltage limits during surge events. The TA6L47AHM3/I maintains this clamping performance across its full operating temperature range.

Is TA6L47AHM3/I qualified to AEC-Q101, and what does the HM3 suffix indicate?

Yes, TA6L47AHM3/I is AEC-Q101 qualified. The HM3 suffix denotes halogen-free, RoHS-compliant construction and compliance with JESD201 Class 2 whisker testing - a requirement for automotive under-hood applications. This qualification is explicitly confirmed in the Vishay datasheet revision dated 17-Sep-2021, and the TA6L47AHM3/I is listed in the ordering table with HM3/I packaging code. The TA6L47AHM3/I meets all stress tests including HTGB, HTRB, and temperature cycling per AEC-Q101.

What is the thermal resistance junction-to-mount (R_θJM) for TA6L47AHM3/I, and why does it matter?

The TA6L47AHM3/I has a maximum R_θJM of 15 °C/W, measured using JEDEC® 51-14 Transient Dual Interface Method (TDIM). This low thermal resistance enables efficient heat transfer from the silicon junction to the PCB copper pad, supporting sustained 600 W surge handling even at elevated ambient temperatures. For the TA6L47AHM3/I, this directly enables reliable operation at T_J = 185 °C - a key differentiator versus standard SMA/SMC TVS diodes with higher R_θJM.

Can TA6L47AHM3/I replace SMAJ47A in an existing automotive design?

TA6L47AHM3/I is not a drop-in replacement for SMAJ47A due to differing packages: TA6L47AHM3/I uses SlimSMAW (DO-221AD), while SMAJ47A uses SMA (DO-214AC). Though both share identical V_BR and V_C specs, the TA6L47AHM3/I offers superior thermal performance (R_θJM ≤ 15 °C/W vs. ~20 °C/W) and full AEC-Q101 + JESD201 Class 2 qualification. Redesign is required to accommodate the SlimSMAW footprint, but the TA6L47AHM3/I delivers measurable reliability gains in high-temp automotive zones.

What is the reverse leakage current of TA6L47AHM3/I at maximum operating temperature?

At T_J = 150 °C and V_WM = 40.2 V, the TA6L47AHM3/I exhibits a maximum reverse leakage current (I_D) of 5.0 μA - specified in the "ELECTRICAL CHARACTERISTICS" table of the Vishay datasheet. This remains well below the 1.0 μA limit at 25 °C, confirming stable blocking behavior across the full automotive temperature range. The TA6L47AHM3/I's low leakage preserves signal integrity in high-impedance sensor interfaces without loading effects.

TA6L47AHM3/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):: 40.2V

Voltage - Breakdown (Min):: 44.7V

Voltage - Clamping (Max) @ Ipp:: 64.8V

Current - Peak Pulse (10/1000µs):: 9.3A

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)

TA6L47AHM3/I FAQ

1.How can I place an order for TA6L47AHM3/I through Aetrix?

Please submit a Request for Quotation (RFQ) for TA6L47AHM3/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 TA6L47AHM3/I reliable?

The price and inventory of TA6L47AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L47AHM3/I is usually 5 days.

3.What payment methods are accepted for TA6L47AHM3/I?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L47AHM3/I transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TA6L47AHM3/I?

TA6L47AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TA6L47AHM3/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 TA6L47AHM3/I?

For technical support, including TA6L47AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L47AHM3/I requirements.

6.How does Aetrix verify that TA6L47AHM3/I is sourced from the original manufacturer or authorized distributors?

All TA6L47AHM3/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 TA6L47AHM3/I meets industry standards.

7.What is the process for return or replacement of TA6L47AHM3/I?

All TA6L47AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with TA6L47AHM3/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 TA6L47AHM3/I part is unused and in its original packaging.

Return procedure for TA6L47AHM3/I:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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