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Vishay T6N43CAHM3/I
- Part No.:
- T6N43CAHM3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N43CAHM3/I.pdf
- Description:
- 600W,43V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
T6N43CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, with 43.0 V nominal breakdown voltage (±5 %), 36.8 V stand-off voltage, and 600 W peak pulse power (10/1000 μs). It delivers clamping voltage of 59.3 V at 10.1 A surge current and operates up to 185 °C junction temperature, designed for automotive-grade ESD and surge protection on signal lines and sensor interfaces.
For engineers reviewing the T6N43CAHM3/I datasheet, T6N43CAHM3/I pinout, T6N43CAHM3/I application, or T6N43CAHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, side-wettable DFN3820A footprint for AOI compatibility, bidirectional clamping behavior, and 30 kV IEC 61000-4-2 ESD immunity - all critical for robust automotive electronics protection design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-temperature stability and low-leakage performance. Its bidirectional configuration enables symmetrical clamping across both polarities without polarity marking, supporting protection of AC-coupled or differential signal paths.
The device is rated for 600 W peak pulse power under 10/1000 μs waveform, with thermal resistance RθJA up to 175 °C/W and RθJM as low as 5 °C/W, enabling effective heat dissipation when mounted on standard FR4 PCBs with recommended pad layout per DFN3820A outline.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 43.0 V ±5 % - defines precise voltage threshold where avalanche conduction begins reliably |
| VWM | 36.8 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| IPPM | 10.1 A (10/1000 μs) - peak surge current it safely clamps without failure |
| VC @ IPPM | 59.3 V - clamped voltage seen by protected circuit during full-rated surge event |
| PPPM | 600 W (10/1000 μs) - transient energy handling capacity for inductive switching and lightning surges |
| TJ max | +185 °C - enables operation in under-hood automotive environments and high-reliability industrial systems |
| ESD Rating | ±30 kV contact/air (IEC 61000-4-2) - meets stringent automotive EMC requirements |
Pinout & Package
Package: DFN3820A - leadless, 2-terminal, side-wettable flanks, 3.95 mm × 2.18 mm × 0.88 mm, halogen-free, RoHS-compliant, AEC-Q101 qualified (HM3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Common terminal pair | No polarity marking required; terminals are functionally symmetric for AC or dual-rail protection |
| Exposed Pad (bottom) | Thermal & electrical ground reference | Integral to thermal path; must be soldered to PCB copper pour for RθJM ≤ 6.5 °C/W performance |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded sensor outputs without polarity concerns |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder joints in high-volume SMT assembly |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per stress test requirements |
| 185 °C junction rating | Permits placement near heat sources (e.g., power modules, ECUs) without derating in most ambient conditions |
| DFN3820A footprint | Compatible with SMP (DO-220AA) board space - allows drop-in replacement in legacy layouts with minimal redesign |
Applications
| Automotive Sensor Protection | Infotainment Interface Lines |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load-dump transients and ESD in engine control units. IC Role / Device Role: Primary transient suppression element placed directly at connector or IC input pins. Use Value: Clamps 59.3 V at 10.1 A while maintaining <1 μA leakage at 36.8 V, preserving signal integrity and preventing latch-up in downstream ASICs. | Use Scenario: Safeguarding USB, HDMI, or audio line inputs in head units against hot-plug ESD and cable-induced surges. IC Role / Device Role: Bidirectional front-end clamp on differential or single-ended signal traces. Use Value: 30 kV IEC 61000-4-2 immunity and 0.88 mm profile enable compact, reliable protection without height interference in slim enclosures. |
| ADAS Camera Power Rails | Body Control Module I/O |
Use Scenario: Suppressing transients on 12 V camera power inputs exposed to ignition noise and alternator ripple in surround-view systems. IC Role / Device Role: Secondary overvoltage clamp parallel to primary DC/DC converter output. Use Value: 600 W pulse rating and 185 °C operation ensure sustained reliability under repeated surge events in high-temp vehicle zones. | Use Scenario: Protecting GPIO, PWM dimming, or relay driver outputs in door modules and lighting controllers from inductive kickback. IC Role / Device Role: Low-inductance, fast-response TVS placed at PCB edge connectors or driver IC outputs. Use Value: DFN3820A's low thermal resistance (RθJM = 5 °C/W) minimizes local heating during repetitive 10/1000 μs surges typical in actuator switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43CA | DO-214AC (SMA) package, 1.5 mm height, higher RθJA (~190 °C/W), same VBR/VC specs | Less suitable for AOI and high-density automotive PCBs due to larger footprint and non-wettable leads | Prefer T6N43CAHM3/I for new automotive designs requiring AEC-Q101 + AOI support; SMAJ43CA acceptable for cost-sensitive industrial retrofits |
| SMCJ43CA | DO-214AB (SMC) package, 2.6 mm height, 1500 W rating, higher capacitance (~200 pF) | Better for high-energy surges but unsuitable for high-speed data lines due to parasitic capacitance and board space | Select T6N43CAHM3/I where board space, thermal performance, and ESD immunity are prioritized over extreme energy handling |
Compared with SMAJ43CA and SMCJ43CA, the T6N43CAHM3/I offers superior manufacturability (side-wettable DFN), tighter thermal management (RθJM = 5 °C/W), and guaranteed AEC-Q101 compliance - making it the preferred choice for next-generation automotive signal and power rail protection where reliability, density, and process compatibility are critical.
Availability
T6N43CAHM3/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 production lifecycles.
Supply support for T6N43CAHM3/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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on automotive, industrial, and computing applications.
The T6N43CAHM3/I belongs to Vishay's PAR® TVS family - engineered specifically for high-reliability, high-temperature transient suppression in automotive electronics, featuring AEC-Q101 qualification and side-wettable DFN packaging for advanced SMT processes.
FAQ
What is the breakdown voltage tolerance of the T6N43CAHM3/I?
The T6N43CAHM3/I has a breakdown voltage tolerance of ±5 %, with nominal VBR = 43.0 V and specified range of 40.9 V (min) to 45.2 V (max) at 1.0 mA test current. This tight tolerance ensures consistent clamping behavior across production lots and supports precise system-level overvoltage margining in automotive designs.
Is the T6N43CAHM3/I suitable for automotive applications?
Yes, the T6N43CAHM3/I is AEC-Q101 qualified and explicitly rated for automotive use, with operating junction temperature up to +185 °C, 30 kV IEC 61000-4-2 ESD immunity, and halogen-free RoHS-compliant construction. Its HM3 suffix confirms full compliance with automotive reliability and environmental standards.
What does the "HM3" suffix mean in T6N43CAHM3/I?
The "HM3" suffix in T6N43CAHM3/I indicates AEC-Q101 qualification (H), halogen-free material content (M), and RoHS-compliant, lead-free termination (3). It also denotes compliance with JESD 201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity per J-STD-020.
How does the DFN3820A package of the T6N43CAHM3/I support automated optical inspection?
The DFN3820A package of the T6N43CAHM3/I features side-wettable flanks - vertical metal surfaces along the package edges that form visible solder fillets during reflow. This enables reliable detection by AOI systems, improving first-pass yield and reducing manual inspection in high-volume automotive PCB assembly.
What is the maximum clamping voltage of the T6N43CAHM3/I at its rated surge current?
The maximum clamping voltage (VC) of the T6N43CAHM3/I is 59.3 V at its rated peak pulse current (IPPM) of 10.1 A under 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events, ensuring downstream ICs remain within safe operating limits.
T6N43CAHM3/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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 10.1A
- 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
T6N43CAHM3/I FAQ
1.How can I place an order for T6N43CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N43CAHM3/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 T6N43CAHM3/I reliable?
The price and inventory of T6N43CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N43CAHM3/I is usually 5 days.
3.What payment methods are accepted for T6N43CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N43CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N43CAHM3/I?
T6N43CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N43CAHM3/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 T6N43CAHM3/I?
For technical support, including T6N43CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N43CAHM3/I requirements.
6.How does Aetrix verify that T6N43CAHM3/I is sourced from the original manufacturer or authorized distributors?
All T6N43CAHM3/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 T6N43CAHM3/I meets industry standards.
7.What is the process for return or replacement of T6N43CAHM3/I?
All T6N43CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with T6N43CAHM3/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 T6N43CAHM3/I part is unused and in its original packaging.
Return procedure for T6N43CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N43CAHM3/I Tags
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