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Vishay T6N47CAHM3/I
- Part No.:
- T6N47CAHM3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N47CAHM3/I.pdf
- Description:
- 600W,47V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:13,989
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Product details
Overview
T6N47CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, with 47 V nominal breakdown voltage (±5 %), 40.2 V stand-off voltage, 64.8 V maximum clamping voltage at 9.3 A peak pulse current, and 600 W peak pulse power rating (10/1000 μs). It is AEC-Q101 qualified and rated for TJ = 185 °C, targeting automotive sensor line protection.
For engineers reviewing the T6N47CAHM3/I datasheet, T6N47CAHM3/I pinout, T6N47CAHM3/I application, or T6N47CAHM3/I equivalent, this page delivers verified electrical specs, package dimensions, clamping behavior under surge, thermal resistance (RθJA = 140–175 °C/W), and AEC-Q101 qualification status - all critical for automotive-grade transient suppression design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve stable bidirectional clamping across -65 °C to +185 °C junction temperature range. Its DFN3820A package features side-wettable flanks for AOI compatibility and supports automated placement without cathode marking.
It delivers 600 W peak pulse power (10/1000 μs) with 64.8 V clamping at 9.3 A, while maintaining ≤1.0 μA reverse leakage at 40.2 V (TA = 25 °C) and ≤1.0 μA at TJ = 150 °C - enabling robust protection of low-voltage signal lines in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 47 V ±5 % - defines precise voltage threshold where avalanche conduction begins reliably |
| VWM | 40.2 V - maximum continuous working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 64.8 V at 9.3 A - clamping voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 600 W (10/1000 μs) - peak transient energy absorption capability per single event |
| TJ max | +185 °C - enables operation in under-hood automotive environments without derating |
| ESD Immunity | ±30 kV (IEC 61000-4-2 contact/air) - protects against human-body-model and system-level ESD events |
| RθJA | 140–175 °C/W - thermal resistance from junction to ambient on standard FR4 PCB, guiding heatsinking needs |
Pinout & Package
DFN3820A package: 2-terminal, leadless, bidirectional configuration with no polarity marking. Dimensions: 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), side-wettable flanks for solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Common transient path | Both terminals function identically - symmetric clamping regardless of surge polarity |
| Exposed pad (bottom) | Thermal and mechanical anchor | Not electrically connected; improves thermal dissipation and board adhesion |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and infotainment interfaces |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray |
| 185 °C junction rating | Eliminates derating in high-temperature under-hood locations up to +150 °C ambient |
| Low-profile height (0.88 mm) | Supports compact PCB layouts in space-constrained modules like radar front-ends |
| Halogen-free, RoHS-compliant, Pb-free | Meets global environmental compliance requirements for automotive and industrial production |
Applications
| Automotive Sensor Protection | Infotainment Interface Lines |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., pressure, temperature) from load-dump and ESD transients in vehicle cabins. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surges before reaching MCU ADC inputs. Use Value: Clamps 10/1000 μs transients to ≤64.8 V while maintaining <1.0 μA leakage at 40.2 V - preserving signal integrity and preventing false triggers. | Use Scenario: Safeguarding USB 2.0, HDMI, or audio differential pairs in head units against hot-plug ESD and cable-induced surges. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to connector to suppress fast transients without distorting high-speed signals. Use Value: 600 W peak power handling and ±30 kV ESD immunity ensure reliable interface operation without signal degradation or latch-up. |
| ADAS Camera Power Rails | Body Control Module (BCM) Inputs |
Use Scenario: Protecting 5 V or 12 V camera module power inputs from ISO 7637-2 pulses and ignition noise in forward-facing ADAS systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on power rail, coordinated with upstream fuse and downstream LDO. Use Value: 185 °C TJ rating allows direct placement near heat-generating image sensors; 64.8 V clamping prevents LDO overvoltage failure during load dump. | Use Scenario: Shielding discrete input pins (e.g., door lock switch, window motor feedback) from inductive kickback in BCM PCBs. IC Role / Device Role / Timing Role: Point-of-use TVS on each switch input trace to localize surge energy and avoid shared-path coupling. Use Value: DFN3820A footprint enables dense placement; bidirectional symmetry eliminates orientation errors during automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47CA-Q | DO-214AC package (SMA), higher RθJA (~190 °C/W), same VBR/VC specs | Larger footprint, less suitable for ultra-dense automotive PCBs; no side-wettable flanks | Preferred when legacy SMA layout exists and AOI is not required |
| TPSMD47CA | DO-214AB (SMC) package, 1500 W PPPM, higher VC (77 V), larger size | Better for high-energy surges but incompatible with space-constrained modules like radar ECUs | Select when surge energy exceeds 600 W and board area permits larger case |
Compared with SMAJ47CA-Q and TPSMD47CA, the T6N47CAHM3/I offers superior board-space efficiency, AOI-ready construction, and tighter thermal performance in automotive under-hood zones - making it optimal for next-generation compact, high-reliability modules where footprint and manufacturability are critical.
Availability
T6N47CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, infotainment interface hardening, and ADAS camera power rail stabilization requiring stable component supply across long production lifecycles.
Supply support for T6N47CAHM3/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 focused on reliability, efficiency, and application-specific performance for automotive, industrial, and computing markets.
The T6N47CAHM3/I belongs to Vishay's PAR® (Protection Advanced Rectifier) TVS family, engineered specifically for high-temperature, high-reliability transient suppression in automotive electronics where AEC-Q101 compliance and compact packaging are mandatory.
FAQ
What is the breakdown voltage tolerance of the T6N47CAHM3/I?
The T6N47CAHM3/I has a nominal breakdown voltage of 47 V with a tolerance of ±5 %, meaning its actual VBR falls between 44.7 V and 49.4 V at 1.0 mA test current. This tight tolerance ensures consistent clamping onset across production lots and supports precise circuit margining in automotive designs where overvoltage thresholds must be tightly controlled.
Is the T6N47CAHM3/I suitable for under-hood automotive applications?
Yes, the T6N47CAHM3/I is explicitly qualified to AEC-Q101 and rated for a maximum junction temperature of +185 °C, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and radar sensors. Its DFN3820A package maintains mechanical and electrical integrity at elevated ambient temperatures without derating below 150 °C.
Does the T6N47CAHM3/I require polarity-aware PCB layout?
No - the T6N47CAHM3/I is a bidirectional TVS diode with no cathode band or polarity marking. Both terminals are functionally identical, allowing unrestricted orientation during automated placement. This eliminates orientation-related assembly errors and simplifies layout for differential or AC-coupled signal lines.
What is the peak pulse current rating of the T6N47CAHM3/I at 10/1000 μs?
The T6N47CAHM3/I is rated for 9.3 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is derived from its 600 W peak pulse power rating and 64.8 V clamping voltage (P = V × I), and is confirmed in the Vishay datasheet Table "ELECTRICAL CHARACTERISTICS" for the T6N47CA variant.
How does the DFN3820A package of the T6N47CAHM3/I support automated optical inspection (AOI)?
The DFN3820A package of the T6N47CAHM3/I features side-wettable flanks - exposed metal on the vertical edges of the terminals - enabling standard AOI systems to inspect solder joint quality without requiring X-ray. This capability reduces post-reflow defect escapes and supports high-yield automotive manufacturing where zero-defect assembly is mandatory.
T6N47CAHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- 2-VDFN
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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, Wettable Flank
- Supplier Device Package:
- DFN3820A
T6N47CAHM3/I FAQ
1.How can I place an order for T6N47CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N47CAHM3/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 T6N47CAHM3/I reliable?
The price and inventory of T6N47CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N47CAHM3/I is usually 5 days.
3.What payment methods are accepted for T6N47CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N47CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N47CAHM3/I?
T6N47CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N47CAHM3/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 T6N47CAHM3/I?
For technical support, including T6N47CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N47CAHM3/I requirements.
6.How does Aetrix verify that T6N47CAHM3/I is sourced from the original manufacturer or authorized distributors?
All T6N47CAHM3/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 T6N47CAHM3/I meets industry standards.
7.What is the process for return or replacement of T6N47CAHM3/I?
All T6N47CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with T6N47CAHM3/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 T6N47CAHM3/I part is unused and in its original packaging.
Return procedure for T6N47CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N47CAHM3/I Tags
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