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Vishay T6N56CAHM3/H
- Part No.:
- T6N56CAHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N56CAHM3/H.pdf
- Description:
- 600W,56V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,407
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Product details
Overview
T6N56CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, with 56 V nominal breakdown voltage (±5 %), 47.8 V stand-off voltage, 77.0 V maximum clamping voltage at 7.8 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 T6N56CAHM3/H datasheet, T6N56CAHM3/H pinout, T6N56CAHM3/H application, or T6N56CAHM3/H equivalent, key selection criteria include clamping performance under 10/1000 μs surge, bidirectional ESD robustness (30 kV contact/air), MSL Level 1 reflow compatibility, and DFN3820A footprint suitability for AOI-enabled SMT assembly in high-reliability automotive modules.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for junction stability up to 185 °C, enabling operation in under-hood automotive environments. Its bidirectional configuration provides symmetrical clamping for AC-coupled or floating signal lines without polarity constraints.
The DFN3820A package features side-wettable flanks for automated optical inspection and supports JEDEC-compliant reflow up to 260 °C peak. Thermal resistance is specified as RθJA ≤ 175 °C/W (FR4, 2 oz) and RθJM ≤ 6.5 °C/W (mount), supporting sustained transient energy dissipation in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nom) | 56 V ±5 % - defines precise voltage threshold at which device enters avalanche conduction during transients |
| VWM | 47.8 V - maximum continuous reverse working voltage before leakage exceeds 1 μA, ensuring no false triggering |
| VC @ IPPM | 77.0 V at 7.8 A - clamping voltage limits downstream IC stress during 10/1000 μs surge events |
| PPPM | 600 W (10/1000 μs) - peak transient power handling capacity per standardized waveform |
| TJ max | +185 °C - enables reliable operation in high-temperature automotive zones (e.g., engine control, ADAS sensors) |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact/air) - protects against human-body-model and system-level electrostatic discharge |
| Package | DFN3820A - 3.95 mm × 2.18 mm × 0.88 mm low-profile leadless package with side-wettable flanks |
Pinout & Package
DFN3820A is a 2-terminal bidirectional device with no polarity marking; terminals are symmetric and interchangeable. The package uses matte tin-plated leads solderable per J-STD-002 and JESD 22-B102, and meets JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no cathode band required |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; symmetric layout enables flexible PCB routing |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive electronics including temperature cycling, HTRB, and ESD stress per AEC standard |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing post-SMT defect escape |
| 185 °C junction rating | Supports placement near heat sources (e.g., power converters, motor drivers) without derating penalties |
| MSL Level 1 | Unlimited floor life and compatibility with standard 260 °C peak reflow profiles, simplifying manufacturing flow |
| Halogen-free & RoHS | Complies with environmental regulations and automotive material compliance requirements (Vishay Doc. 99912) |
Applications
| Automotive Sensor Protection | Power Line Surge Suppression |
|---|---|
Use Scenario: Protecting LIN/CAN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role: Bidirectional clamping element placed across signal pair or between signal and ground. Use Value: Limits transient voltage to ≤77.0 V while sustaining 600 W pulses, preventing latch-up or gate oxide damage in protected ICs. | Use Scenario: Safeguarding 12 V/24 V power rails feeding infotainment head units or ADAS camera modules against ISO 7637-2 Pulse 1/2/5a surges. IC Role / Device Role: Primary parallel TVS on input rail, upstream of DC/DC converter or LDO regulator. Use Value: Clamps 10/1000 μs surges to 77.0 V with <1 ns response, preserving downstream power integrity without crowbar action. |
| Industrial Motor Control I/O | Automotive Lighting Driver Protection |
Use Scenario: Shielding encoder feedback lines and digital I/O ports in motor drives exposed to commutation noise and relay bounce. IC Role / Device Role: Point-of-use TVS on differential encoder signals (A/B/Z) or discrete GPIO lines. Use Value: 30 kV ESD immunity and 600 W surge capability prevent false triggering or permanent failure in harsh factory environments. | Use Scenario: Protecting LED driver ICs and MOSFET gate inputs in adaptive front-lighting systems (AFS) subjected to battery transients and ESD. IC Role / Device Role: Low-capacitance (<50 pF typical) TVS on PWM control lines and current-sense paths. Use Value: Maintains signal fidelity due to minimal parasitic capacitance while delivering full 600 W clamping performance at 56 V standoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/5A (Vishay) | DO-214AC (SMA) package, unidirectional, 58 V VBR, 600 W rating, higher RθJA (~190 °C/W) | Requires polarity-aware layout; less suitable for floating differential lines or space-constrained automotive modules | Select when legacy SMA footprint is fixed and unidirectional clamping suffices |
| TPSMD58CA (Texas Instruments) | DO-214AB (SMC) package, bidirectional, 58 V VBR, 600 W, AEC-Q101 qualified, larger footprint (7.11 × 6.22 mm) | Higher thermal mass but incompatible with DFN3820A land pattern; better for high-energy, lower-density boards | Select when board area allows larger package and enhanced thermal dissipation is prioritized over miniaturization |
Compared with SMAJ58A-E3/5A and TPSMD58CA, T6N56CAHM3/H delivers identical 600 W surge capability in a 3.95 mm × 2.18 mm DFN3820A footprint with side-wettable flanks and guaranteed 185 °C operation-making it optimal for next-generation automotive modules where size, AOI compatibility, and extreme temperature resilience are critical.
Availability
T6N56CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor control I/O, and ADAS lighting driver circuits requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for T6N56CAHM3/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with focus on high-reliability, automotive-grade components.
The T6N56CAHM3/H belongs to Vishay's PAR® (Protected Anisotropic Rectifier) TVS family, engineered specifically for robust transient suppression in automotive and industrial environments where high junction temperature, ESD immunity, and AOI-compatible packaging are mandatory.
FAQ
What is the breakdown voltage tolerance for T6N56CAHM3/H?
The T6N56CAHM3/H has a breakdown voltage tolerance of ±5 %, with a nominal VBR of 56 V (min 53.2 V, max 58.8 V at 1 mA test current). This tight tolerance ensures consistent clamping behavior across production lots and supports precise circuit margining in automotive safety-critical designs.
Is T6N56CAHM3/H compatible with lead-free reflow processes?
Yes, T6N56CAHM3/H is fully compatible with lead-free reflow processes. It meets MSL Level 1 per J-STD-020 and supports a maximum peak reflow temperature of 260 °C, making it suitable for standard Pb-free assembly lines without preconditioning or dry-pack requirements.
Does T6N56CAHM3/H require a heatsink for 600 W pulse handling?
No, T6N56CAHM3/H does not require an external heatsink for single 10/1000 μs pulses. Its DFN3820A package achieves RθJM ≤ 6.5 °C/W to the PCB mount pad, allowing effective transient energy dissipation into the copper plane. Continuous power dissipation remains limited by RθJA (≤175 °C/W), so heatsinking is unnecessary for surge-only applications.
How does the bidirectional nature of T6N56CAHM3/H affect PCB layout?
The bidirectional nature of T6N56CAHM3/H eliminates polarity concerns: either terminal may connect to signal or return, enabling symmetric placement across differential pairs or floating nodes. No cathode marking exists, simplifying layout and reducing risk of orientation errors during automated placement.
What is the junction capacitance of T6N56CAHM3/H at zero bias?
The junction capacitance of T6N56CAHM3/H is not explicitly specified in the datasheet at zero bias. However, typical capacitance at VWM = 47.8 V is ≤50 pF (per Fig. 4), and the device is optimized for low capacitance to minimize signal distortion on high-speed sensor lines-consistent with its use in automotive LIN and analog sensor interfaces.
T6N56CAHM3/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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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
T6N56CAHM3/H FAQ
1.How can I place an order for T6N56CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N56CAHM3/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 T6N56CAHM3/H reliable?
The price and inventory of T6N56CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N56CAHM3/H is usually 5 days.
3.What payment methods are accepted for T6N56CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N56CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N56CAHM3/H?
T6N56CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N56CAHM3/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 T6N56CAHM3/H?
For technical support, including T6N56CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N56CAHM3/H requirements.
6.How does Aetrix verify that T6N56CAHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N56CAHM3/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 T6N56CAHM3/H meets industry standards.
7.What is the process for return or replacement of T6N56CAHM3/H?
All T6N56CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N56CAHM3/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 T6N56CAHM3/H part is unused and in its original packaging.
Return procedure for T6N56CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N56CAHM3/H Tags
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