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Vishay General Semiconductor - Diodes Division TA6L47AHM3/H
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- Part No.:
- TA6L47AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6L47AHM3/H.pdf
- Description:
- 600W,47V 5%, SLIMSMAW PAR
- Quantity:
- Payment:
- Shipping:
Inventory:7,000
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Product details
Overview
TA6L47AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor in SlimSMAW (DO-221AD) package, with 47 V breakdown voltage (VBR), 40.2 V stand-off voltage (VWM), 600 W peak pulse power (10 μs/1000 μs), 9.3 A peak pulse current, and 64.8 V clamping voltage at IPPM - designed for automotive-grade overvoltage protection of sensor signal lines and MOSFET gates.
For engineers reviewing the TA6L47AHM3/H datasheet, TA6L47AHM3/H pinout, TA6L47AHM3/H application, or TA6L47AHM3/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal derating behavior, SlimSMAW mechanical dimensions, and direct alternatives for high-reliability 12 V/24 V automotive electronics.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable junction performance up to TJ = 185 °C, enabling operation in under-hood automotive environments. Its unidirectional configuration provides low-leakage reverse blocking (1.0 μA at VWM) and precise clamping response during inductive load switching transients.
The device is rated for 600 W peak pulse power per 10/1000 μs waveform, with thermal resistance RθJA ≤ 150 °C/W on FR4 PCB and RθJM ≤ 15 °C/W to mounting pad - supporting robust thermal management in compact layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 44.7 / 47.0 / 49.4 V - ensures reliable turn-on above system nominal voltage while avoiding false triggering during ripple or noise. |
| VWM | 40.2 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA, compatible with 36 V automotive supply rails. |
| VC @ IPPM | 64.8 V - clamping voltage limits protected circuit stress during 9.3 A surge, staying below typical 65–75 V IC absolute maximum ratings. |
| PPPM | 600 W (10 μs/1000 μs) - sustains high-energy transients common in solenoid, relay, and motor drive circuits. |
| TJ max | +185 °C - enables placement near heat sources (e.g., power modules) without derating loss in surge capability. |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronics including temperature cycling, HTRB, and ESD. |
| Package | SlimSMAW (DO-221AD) - low-profile (0.81 mm height), halogen-free, RoHS-compliant, MSL Level 1 (260 °C reflow). |
Pinout & Package
SlimSMAW (DO-221AD) is a two-terminal surface-mount package with cathode indicated by a color band. Anode and cathode terminals are located on opposite ends of the molded body; no internal connections or auxiliary pins exist.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane; carries full surge current during clamping event. |
| Cathode | Transient voltage sensing node | Connected to protected line (e.g., sensor output); voltage at this terminal rises until VBR is exceeded, initiating conduction. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature junction stability | TJ = 185 °C operation preserves clamping accuracy and leakage performance across automotive under-hood thermal profiles. |
| Optimized junction passivation | Passivated anisotropic rectifier structure reduces parameter drift over lifetime and improves reliability under humidity/bias stress. |
| Low-profile SlimSMAW footprint | 0.81 mm max height enables use in space-constrained modules such as ADAS camera ECUs and battery management sensors. |
| AEC-Q101 + JESD201 Class 2 whisker testing | HM3 suffix confirms compliance with automotive reliability standards including tin whisker mitigation for long-term solder joint integrity. |
| 600 W surge rating with tight VC/VBR ratio | VC/VBR = 1.38 supports effective protection margin without excessive voltage overshoot on sensitive analog inputs. |
Applications
| Automotive Sensor Signal Protection | 12 V/24 V Power Rail Clamping |
|---|---|
Use Scenario: Protecting analog outputs of pressure, temperature, and position sensors in engine control units against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor output and ground to clamp transients before they reach ADC input or signal conditioning amplifier. Use Value: Maintains signal integrity with <1.0 μA leakage at 40.2 V, preventing DC offset errors while limiting transient voltage to 64.8 V during 9.3 A surges. | Use Scenario: Suppressing ISO 7637-2 Pulse 1/2a/5a transients on 12 V or 24 V supply rails feeding microcontrollers and CAN transceivers. IC Role / Device Role / Timing Role: Parallel-connected TVS providing low-impedance shunt path during fast-rising voltage spikes, diverting energy away from downstream regulators and logic. Use Value: Delivers 600 W peak power handling with 185 °C junction rating, ensuring sustained clamping performance even during repeated cold-crank or alternator load dump events. |
| MOSFET Gate Protection | Industrial Motor Drive I/O Protection |
Use Scenario: Shielding N-channel MOSFET gate-source terminals from Miller-induced voltage spikes during high-dV/dt switching in automotive lighting drivers. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS placed directly across gate and source to clamp negative-going transients and prevent gate oxide breakdown. Use Value: Low VWM (40.2 V) avoids interference with normal gate drive levels while clamping sub-100 ns spikes to safe levels using 64.8 V VC. | Use Scenario: Safeguarding digital I/O lines of PLC modules and motor controllers exposed to EFT bursts and surge coupling from adjacent AC motor windings. IC Role / Device Role / Timing Role: Discrete TVS element integrated into I/O connector interface to absorb repetitive 4 kV EFT and 2 kV surge events per IEC 61000-4-4/5. Use Value: AEC-Q101 qualification and 185 °C TJ ensure long-term reliability in industrial enclosures where ambient temperatures exceed 85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/57T | Same VBR (44.7–49.4 V), same DO-214AC (SMA) package, but lower PPPM = 400 W and TJ max = 150 °C. | Limited to non-automotive or lower-temperature industrial use; not AEC-Q101 qualified. | Select when cost sensitivity outweighs automotive qualification and 185 °C operation. |
| SMCJ47AHE3/57T | Higher PPPM = 1500 W, same VBR, but larger DO-214AB (SMC) package (2.6 mm height) and TJ max = 175 °C. | Better for high-energy surges but incompatible with ultra-low-profile designs requiring SlimSMAW's 0.81 mm height. | Select when surge energy exceeds 600 W and board height allows ≥2.6 mm component clearance. |
Compared with SMAJ47A-E3/57T and SMCJ47AHE3/57T, TA6L47AHM3/H uniquely balances AEC-Q101 qualification, 185 °C junction rating, and SlimSMAW low-profile packaging - making it optimal for next-generation automotive modules where space, reliability, and thermal resilience are jointly constrained.
Availability
TA6L47AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, 12 V/24 V power rail clamping, and MOSFET gate safeguarding requiring stable component supply, traceable sourcing, and lifecycle continuity.
Supply support for TA6L47AHM3/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 diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade qualification.
The TA6L series belongs to Vishay's PAR® family of high-temperature-stable TVS diodes, engineered specifically for harsh-environment automotive and industrial applications demanding extended junction temperature operation and AEC-Q101 compliance.
FAQ
What is the breakdown voltage tolerance for TA6L47AHM3/H?
The TA6L47AHM3/H has a specified breakdown voltage range of 44.7 V (minimum) to 49.4 V (maximum) at 1.0 mA test current, with 47.0 V nominal. This ±5% tolerance ensures consistent clamping behavior across production lots while maintaining compatibility with 40.2 V stand-off voltage requirements in 36 V automotive systems.
Is TA6L47AHM3/H suitable for bidirectional transient suppression?
No, TA6L47AHM3/H is unidirectional only, as confirmed in the Vishay datasheet. It conducts only during positive transients on the cathode relative to anode. For bidirectional protection, a separate symmetric TVS or back-to-back configuration would be required - TA6L47AHM3/H must be oriented with cathode toward the protected line.
Does TA6L47AHM3/H meet AEC-Q101 requirements?
Yes, TA6L47AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating compliance with JESD22-A114 stress tests plus JESD201 Class 2 whisker testing. This certification validates its suitability for automotive electronic control units, including under-hood and chassis-mounted applications.
What is the thermal resistance of TA6L47AHM3/H on standard FR4 PCB?
The maximum junction-to-ambient thermal resistance (RθJA) for TA6L47AHM3/H is 150 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A guidelines. This value supports accurate thermal derating calculations for continuous operation up to 185 °C junction temperature in real-world automotive layouts.
How does the clamping voltage of TA6L47AHM3/H compare to its breakdown voltage?
TA6L47AHM3/H clamps at 64.8 V during its rated 9.3 A peak pulse current, yielding a VC/VBR ratio of approximately 1.38. This tight ratio ensures effective protection margin without excessive overshoot - critical for safeguarding 65 V-rated components like automotive CAN transceivers and analog front-ends.
TA6L47AHM3/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):
- 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/H FAQ
1.How can I place an order for TA6L47AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6L47AHM3/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 TA6L47AHM3/H reliable?
The price and inventory of TA6L47AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6L47AHM3/H is usually 5 days.
3.What payment methods are accepted for TA6L47AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6L47AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6L47AHM3/H?
TA6L47AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6L47AHM3/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 TA6L47AHM3/H?
For technical support, including TA6L47AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6L47AHM3/H requirements.
6.How does Aetrix verify that TA6L47AHM3/H is sourced from the original manufacturer or authorized distributors?
All TA6L47AHM3/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 TA6L47AHM3/H meets industry standards.
7.What is the process for return or replacement of TA6L47AHM3/H?
All TA6L47AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with TA6L47AHM3/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 TA6L47AHM3/H part is unused and in its original packaging.
Return procedure for TA6L47AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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