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Vishay T6N43AHM3/H
- Part No.:
- T6N43AHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N43AHM3/H.pdf
- Description:
- 600W,43V 5%, DFN3820A PAR
- Quantity:
- Payment:
- Shipping:
Inventory:8,279
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Product details
Overview
T6N43AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, featuring 43.0 V nominal breakdown voltage (VBR), 36.8 V stand-off voltage (VWM), 59.3 V clamping voltage at 10.1 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified, rated for TJ = 185 °C, and designed for automotive sensor signal-line protection.
For engineers reviewing the T6N43AHM3/H datasheet, T6N43AHM3/H pinout, T6N43AHM3/H application, or T6N43AHM3/H equivalent, key selection criteria include unidirectional clamping performance under 10/1000 μs transients, low-profile DFN3820A footprint with side-wettable flanks for AOI, and compliance with IEC 61000-4-2 ±30 kV ESD immunity.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for high-temperature stability and low leakage-maximum IR = 1.0 μA at VWM and 6.0 μA at TJ = 150 °C. Its thermal design supports RθJM = 5 °C/W (typ), enabling robust surge energy dissipation in compact automotive PCB layouts.
The device operates as a single-element, cathode-marked unidirectional clamp with polarity defined by a color band on the DFN3820A case. It meets MSL Level 1 per J-STD-020 and is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 40.9 / 43.0 / 45.2 V - ensures reliable turn-on above system operating voltage while accommodating process variation |
| VWM | 36.8 V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 59.3 V - clamping voltage during 10.1 A 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 600 W - peak transient power handling capability under standardized waveform |
| TJ max | +185 °C - enables operation in under-hood automotive environments without derating |
| ESD immunity | ±30 kV contact/air per IEC 61000-4-2 - protects against human-body-model and system-level electrostatic events |
| Package | DFN3820A - 3.95 mm × 2.18 mm × 0.88 mm low-profile leadless package with side-wettable flanks for automated optical inspection |
Pinout & Package
DFN3820A package: 2-terminal, leadless, surface-mount device with anode connected to exposed thermal pad (heatsink) and cathode marked by color band on top surface. Dimensions: 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), 0.70 mm pitch between terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (exposed pad) | Common reference and thermal path | Electrically tied to PCB ground plane; primary heat conduction path to board copper |
| Cathode (marked side) | Transient current sink | Connected to protected line; conducts surge current to anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables 100 % automated optical inspection (AOI) of solder joint quality without X-ray |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock |
| Junction passivation | Reduces long-term leakage drift and improves reliability under high-temperature bias conditions |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without baking preconditioning |
| Halogen-free & RoHS | Complies with automotive environmental standards and end-of-life material restrictions |
Applications
| Automotive Sensor Protection | Power Supply Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in engine control modules. IC Role / Device Role / Timing Role: Unidirectional voltage clamp placed directly at connector or IC input pin to limit transient excursions below IC absolute maximum ratings. Use Value: With 59.3 V clamping at 10.1 A and 185 °C junction rating, T6N43AHM3/H maintains protection integrity across full automotive temperature range without derating. | Use Scenario: Safeguarding 36 V nominal battery-fed subsystems (e.g., body control modules, lighting drivers) against ISO 7637-2 Pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after fuse and upstream of DC-DC converter input to absorb high-energy surges before regulation stage. Use Value: 600 W peak pulse power and 36.8 V VWM allow stable operation during normal 36 V rail fluctuations while clamping >50 V spikes. |
| Industrial Motor Drive I/O | ADAS Camera Interface Protection |
Use Scenario: Shielding encoder feedback lines and digital I/Os in motor drives from commutation noise and ground bounce-induced transients. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential or single-ended signal traces to suppress sub-microsecond EFT bursts and fast-rising inductive spikes. Use Value: Low 0.88 mm height and DFN3820A footprint enable placement adjacent to connectors without interfering with shield cans or stacked PCBs. | Use Scenario: Guarding FPD-Link III or GMSL serial video interfaces in rear-view or surround-view cameras against ESD and cable discharge events. IC Role / Device Role / Timing Role: High-speed unidirectional clamp on data pair lines, selected for minimal capacitance impact and guaranteed clamping response <1 ns. Use Value: Junction capacitance <100 pF (typ at 0 V) and 30 kV IEC 61000-4-2 rating ensure signal integrity and interface-level ESD survivability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/57T | DO-214AC (SMA) package; larger footprint (4.5 × 2.7 mm); 600 W rating; VC = 69.4 V @ 8.7 A | Higher clamping voltage and lower IPPM; less suitable for space-constrained automotive modules | Select when legacy SMA layout exists and thermal mass requirements exceed DFN capabilities |
| SMCJ43AHE3/73 | DO-214AB (SMC) package; 1500 W rating; VC = 69.4 V @ 21.7 A; TJ max = 175 °C | Higher power but larger size (7.1 × 6.2 mm); not AEC-Q101 qualified; higher clamping voltage | Choose for industrial systems requiring higher surge margin where board space allows |
Compared with SMAJ43A-E3/57T and SMCJ43AHE3/73, T6N43AHM3/H delivers tighter clamping (59.3 V vs. ≥69.4 V), smaller footprint (3.95 × 2.18 mm), AEC-Q101 qualification, and superior thermal resistance (RθJM = 5 °C/W), making it optimal for next-generation automotive electronics where space, reliability, and precision clamping are critical.
Availability
T6N43AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, power supply rail clamping, and industrial motor drive I/O requiring stable component supply with AEC-Q101 assurance and high-temperature operation up to +185 °C.
Supply support for T6N43AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The T6NxxA family belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS platform, engineered specifically for high-reliability automotive and industrial transient suppression where low-profile packaging, high-temperature stability, and precise clamping are mandatory.
FAQ
What is the exact breakdown voltage tolerance for T6N43AHM3/H?
The T6N43AHM3/H has a breakdown voltage (VBR) tolerance of ±5 %, specified as 40.9 V (min), 43.0 V (nom), and 45.2 V (max) at IT = 1.0 mA. This tight tolerance ensures consistent clamping behavior across production lots and supports robust design margins in automotive signal protection circuits.
Is T6N43AHM3/H compatible with lead-free reflow profiles?
Yes, T6N43AHM3/H is fully compatible with standard lead-free reflow profiles, meeting J-STD-020 MSL Level 1 with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102, and the HM3 suffix confirms qualification to JESD 201 Class 2 whisker resistance.
Does T6N43AHM3/H require external series impedance for optimal clamping?
No, T6N43AHM3/H is designed for direct parallel connection to protected lines without external series impedance. Its low dynamic impedance and fast response (<1 ns) enable effective clamping even with minimal trace inductance; however, minimizing PCB loop area between anode and cathode remains critical for achieving specified VC.
What is the maximum leakage current of T6N43AHM3/H at elevated temperature?
At TJ = 150 °C and VWM = 36.8 V, the maximum reverse leakage current (ID) for T6N43AHM3/H is 6.0 μA. This value is confirmed in the Electrical Characteristics table and reflects its stable performance under sustained high-temperature automotive operating conditions.
Can T6N43AHM3/H be used in bidirectional configurations?
No, T6N43AHM3/H is strictly unidirectional, as indicated by the "A" suffix and documented polarity (cathode marked by color band, anode as heatsink). For bidirectional protection, Vishay offers complementary parts such as T6N43AHM3/HT (dual unidirectional) or dedicated bidirectional families like the SMBJ series.
T6N43AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- 2-VDFN
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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
T6N43AHM3/H FAQ
1.How can I place an order for T6N43AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N43AHM3/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 T6N43AHM3/H reliable?
The price and inventory of T6N43AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N43AHM3/H is usually 5 days.
3.What payment methods are accepted for T6N43AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N43AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N43AHM3/H?
T6N43AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N43AHM3/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 T6N43AHM3/H?
For technical support, including T6N43AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N43AHM3/H requirements.
6.How does Aetrix verify that T6N43AHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N43AHM3/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 T6N43AHM3/H meets industry standards.
7.What is the process for return or replacement of T6N43AHM3/H?
All T6N43AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N43AHM3/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 T6N43AHM3/H part is unused and in its original packaging.
Return procedure for T6N43AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N43AHM3/H Tags
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