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Vishay General Semiconductor - Diodes Division TA6F47AHM3/6B
- Part No.:
- TA6F47AHM3/6B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
TA6F47AHM3/6B.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO221AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,257
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Product details
Overview
TA6F47AHM3/6B from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) designed for clamping inductive switching transients and ESD events on power rails and signal lines. It features a 44.7–49.4 V breakdown voltage (VBR), 40.2 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 64.8 V maximum clamping voltage (VC) at 9.3 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the TA6F47AHM3/6B datasheet, TA6F47AHM3/6B pinout, TA6F47AHM3/6B application, or TA6F47AHM3/6B equivalent, key selection criteria include its DO-221AC (SlimSMA) package, 185 °C junction rating, IEC 61000-4-2 Level 4 ESD immunity (15 kV air / 8 kV contact), and suitability for high-density PCB layouts requiring low-profile (<0.95 mm height) TVS protection.
Technical Context
This device operates as a unidirectional avalanche diode, leveraging passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge conditions. Its thermal design supports operation up to TJ = 185 °C with RθJA = 145 °C/W (on FR-4 minimum pad) and RθJM = 20 °C/W (junction-to-mount), enabling robust performance in thermally constrained automotive and industrial environments.
The TA6F47AHM3/6B is rated for 600 W peak pulse power (10/1000 µs waveform), delivers 64.8 V clamping at 9.3 A IPPM, and maintains <1 µA reverse leakage at VWM = 40.2 V (TJ = 150 °C). Its MSL Level 1 rating and matte tin-plated terminals ensure compatibility with standard reflow profiles up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V - defines reliable avalanche initiation range under 1 mA test current |
| VWM | 40.2 V - maximum continuous working voltage before significant leakage begins |
| VC @ IPPM | 64.8 V at 9.3 A - clamping voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - peak surge energy handling capacity for transient suppression |
| TJ max | 185 °C - enables use in under-hood automotive and high-ambient industrial locations |
| ESD Rating | IEC 61000-4-2 Level 4: 15 kV air / 8 kV contact - protects against human-body model discharges |
| Package | DO-221AC (SlimSMA) - 0.95 mm profile, halogen-free, RoHS-compliant, AEC-Q101 qualified |
Pinout & Package
DO-221AC (SlimSMA) package: surface-mount, single-diode configuration with cathode indicated by color band. Dimensions: 4.15–4.35 mm length × 2.50–2.70 mm width × 0.95 mm height. Matte tin-plated terminals meet J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Current exit point during forward conduction; marked by color band | Connected to protected line's higher-potential side (e.g., supply rail or signal line) |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile packaging | 0.95 mm height enables placement beneath low-clearance shields and connectors |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics per stress-test requirements |
| Junction passivation | Optimized anisotropic rectifier structure ensures stable VBR over lifetime and temperature |
| MSL Level 1 | Unlimited floor life and compatibility with standard 260 °C reflow without baking |
| Halogen-free & RoHS | HM3 suffix confirms compliance with environmental regulations and whisker resistance (JESD201 Class 2) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 36–48 V battery-fed ECUs and lighting modules from load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and ground to clamp surges above 40.2 V. Use Value: Limits transient voltage to ≤64.8 V at 9.3 A, preventing damage to 45 V-rated MOSFETs and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS on 4–20 mA or 0–10 V output lines exposed to relay switching noise. Use Value: Sub-1 µA leakage at 40.2 V preserves signal integrity; 600 W surge rating absorbs repeated 10/1000 µs transients. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Suppression |
Use Scenario: Front-end protection for PoE-powered switches and base station RF modules operating from 48 V DC supplies. IC Role / Device Role / Timing Role: Primary surge clamp on input bus prior to DC-DC conversion stages. Use Value: 185 °C TJ rating allows operation near heat-generating RF amplifiers; SlimSMA footprint saves board space. |
Use Scenario: Suppressing back-EMF from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals to absorb inductive spikes during PWM commutation. Use Value: 600 W peak power handles repetitive 10/1000 µs surges; 0.95 mm height avoids interference with mechanical assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ48A-E3/5A (Vishay) | Same DO-214AC package; VBR = 53.3–58.9 V; VC = 77.4 V @ 7.7 A; PPPM = 400 W | Lower surge rating and higher clamping voltage limit use in less demanding 48 V systems | Select when cost sensitivity outweighs need for 600 W rating and tighter VC control |
| 1.5SMC47A (ON Semiconductor) | DO-214AB package; VBR = 44.7–49.4 V; VC = 67.0 V @ 8.9 A; PPPM = 1500 W; taller (2.6 mm) | Higher surge capacity but larger footprint and height incompatible with ultra-thin designs | Choose for legacy board designs where height >0.95 mm is acceptable and 1500 W margin is required |
Compared with SMAJ48A-E3/5A and 1.5SMC47A, the TA6F47AHM3/6B uniquely balances 600 W surge capability, 0.95 mm profile, and AEC-Q101 qualification-making it optimal for space-constrained automotive and industrial modules where thermal robustness and reliability are non-negotiable.
Availability
TA6F47AHM3/6B is available at Aetrix Electronics and suitable for automotive power distribution units, industrial sensor interfaces, telecom DC inputs, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TA6F47AHM3/6B 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, efficiency, and application-specific optimization.
The TA6F47AHM3/6B belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for high-temperature, high-reliability transient suppression in automotive, industrial, and telecom infrastructure where compact size and AEC-Q101 validation are mandatory.
FAQ
What is the exact breakdown voltage range specified for TA6F47AHM3/6B?
The TA6F47AHM3/6B has a guaranteed breakdown voltage (VBR) range of 44.7 V to 49.4 V at 1.0 mA test current, measured per the Vishay datasheet Document Number 89939. This range ensures consistent avalanche initiation across production lots and temperature extremes, critical for predictable clamping behavior in 48 V system protection.
Is TA6F47AHM3/6B suitable for automotive applications?
Yes, the TA6F47AHM3/6B is AEC-Q101 qualified and rated for TJ = 185 °C, making it suitable for under-hood and body-control module applications. Its DO-221AC package, halogen-free construction, and MSL Level 1 rating further align with automotive manufacturing and reliability requirements.
What does the "HM3/6B" suffix indicate in TA6F47AHM3/6B?
The "HM3" denotes Vishay's halogen-free, RoHS-compliant, AEC-Q101-qualified base construction with JESD201 Class 2 whisker resistance. The "6B" specifies the packaging: 13-inch diameter plastic tape and reel, with 14,000 units per reel-optimized for high-volume SMT assembly lines.
How does the clamping voltage of TA6F47AHM3/6B compare to its stand-off voltage?
The TA6F47AHM3/6B has a stand-off voltage (VWM) of 40.2 V and a maximum clamping voltage (VC) of 64.8 V at 9.3 A. This 24.6 V differential ensures safe margin below typical 75 V IC absolute maximum ratings while maintaining low leakage (<1 µA) during normal operation.
Can TA6F47AHM3/6B be used in bidirectional configurations?
No, the TA6F47AHM3/6B is strictly unidirectional, as confirmed by its datasheet features and electrical characteristics table. For bidirectional protection, Vishay offers complementary parts such as the TA6F47CA series; using TA6F47AHM3/6B in reverse-biased mode would not provide symmetrical clamping.
TA6F47AHM3/6B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-221AC, SMA Flat Leads
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- DO-221AC (SlimSMA)
TA6F47AHM3/6B FAQ
1.How can I place an order for TA6F47AHM3/6B through Aetrix?
Please submit a Request for Quotation (RFQ) for TA6F47AHM3/6B 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 TA6F47AHM3/6B reliable?
The price and inventory of TA6F47AHM3/6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TA6F47AHM3/6B is usually 5 days.
3.What payment methods are accepted for TA6F47AHM3/6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TA6F47AHM3/6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TA6F47AHM3/6B?
TA6F47AHM3/6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TA6F47AHM3/6B 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 TA6F47AHM3/6B?
For technical support, including TA6F47AHM3/6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TA6F47AHM3/6B requirements.
6.How does Aetrix verify that TA6F47AHM3/6B is sourced from the original manufacturer or authorized distributors?
All TA6F47AHM3/6B 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 TA6F47AHM3/6B meets industry standards.
7.What is the process for return or replacement of TA6F47AHM3/6B?
All TA6F47AHM3/6B units undergo pre-shipment inspection (PSI). If there is an issue with TA6F47AHM3/6B, 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 TA6F47AHM3/6B part is unused and in its original packaging.
Return procedure for TA6F47AHM3/6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TA6F47AHM3/6B Tags
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