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Vishay 6DFN56CA-M3/H
- Part No.:
- 6DFN56CA-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN56CA-M3/H.pdf
- Description:
- 600W,56V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,807
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Product details
Overview
6DFN56CA-M3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in a DFN3820A package, designed for robust ESD and surge protection of sensitive signal lines. It features a nominal breakdown voltage of 56 V, 600 W peak pulse power (10/1000 μs), clamping voltage of 77.0 V at 7.8 A, and operates across -65 °C to +175 °C junction temperature. It is widely deployed in industrial sensor interfaces and automotive body control modules.
For engineers reviewing the 6DFN56CA-M3/H datasheet, 6DFN56CA-M3/H pinout, 6DFN56CA-M3/H application, or 6DFN56CA-M3/H equivalent, this page delivers verified electrical specs, package dimensions, real-world use cases, and validated alternative parts - all aligned with Vishay's official 98490 document revision (17-Oct-2023).
Technical Context
This TVS diode uses anisotropic rectifier technology with junction passivation to deliver stable bidirectional clamping without polarity marking. Its low-profile DFN3820A package enables high-density PCB layouts and supports AOI inspection via side-wettable flanks.
It meets IEC 61000-4-2 ±30 kV contact/air discharge and is rated for MSL Level 1 (260 °C reflow). Thermal resistance is 140–175 °C/W (junction-to-ambient) and 5–6.5 °C/W (junction-to-mount), enabling reliable operation under repetitive surge conditions up to TJ = 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 53.2–58.8 V (min–max at 1 mA); ensures precise turn-on during overvoltage events |
| Stand-off Voltage (VWM) | 47.8 V; maximum continuous working voltage before leakage exceeds 1 μA |
| Clamping Voltage (VC) | 77.0 V at 7.8 A (10/1000 μs); limits downstream voltage stress during surge |
| Peak Pulse Power (PPPM) | 600 W (10/1000 μs); sustains high-energy transients common in automotive load-dump or inductive switching |
| Junction Temperature Range | -65 °C to +175 °C; supports under-hood and industrial environments without derating |
| ESD Immunity | ±30 kV per IEC 61000-4-2; protects against human-body-model and contact-discharge events |
| Package | DFN3820A (3.95 mm × 2.18 mm × 0.88 mm); halogen-free, RoHS-compliant, M3-grade termination |
Pinout & Package
DFN3820A is a 2-terminal, bidirectional surface-mount package with no cathode band. Terminals are matte tin-plated and solderable per J-STD-002/JESD 22-B102. Side-wettable flanks support automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no polarity marking required |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically symmetric with Terminal 1; enables placement flexibility and eliminates orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DFN package | 0.88 mm typical height enables ultra-thin designs and compatibility with tight Z-height constraints |
| Side-wettable flanks | Enables 100% automated optical inspection (AOI) of solder joints without X-ray |
| Bidirectional clamping | No polarity marking simplifies BOM management and reduces assembly errors in AC-coupled or differential lines |
| High-temperature capability | 175 °C max junction temperature supports operation in engine bay, power supply rails, and industrial motor drives |
| AEC-Q101 qualified (H suffix) | M3/H variant meets automotive reliability standards including temperature cycling, HTRB, and ESD stress tests |
Applications
| Automotive Body Control Module | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus and switch input lines from load-dump surges and battery reverse-connection transients in door modules and lighting controllers. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector entry point to clamp fast-rising spikes before reaching MCU GPIO or LIN transceiver. Use Value: Prevents latch-up or permanent damage to 5 V/12 V logic inputs while maintaining signal integrity due to low 77.0 V clamping at 7.8 A. |
Use Scenario: Safeguarding 4–20 mA current-loop sensor outputs and analog voltage inputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal and return lines to absorb both positive and negative polarity transients induced by nearby relay switching or lightning coupling. Use Value: Maintains <1 μA leakage at 47.8 V stand-off, ensuring minimal impact on loop accuracy while delivering 600 W surge handling per event. |
| Medical Patient Monitor Front-End | Telecom Ethernet PHY Protection |
Use Scenario: Shielding ECG/SpO₂ analog front-end inputs from ESD events during clinical handling and defibrillator-induced transients. IC Role / Device Role / Timing Role: Primary TVS on differential biopotential signal paths, positioned ahead of instrumentation amplifiers to limit voltage excursion below absolute maximum ratings. Use Value: ±30 kV IEC 61000-4-2 immunity and 77.0 V clamping ensure patient safety compliance without adding series resistance or capacitance that degrades signal bandwidth. |
Use Scenario: Protecting 10/100BASE-TX Ethernet PHY pins (MDI) from lightning-induced surges entering via unshielded twisted-pair cabling in outdoor access points. IC Role / Device Role / Timing Role: Bidirectional TVS array (single-device configuration) placed across each differential pair to clamp common-mode and differential-mode transients simultaneously. Use Value: DFN3820A footprint allows dense placement near RJ45 magnetics; 600 W rating handles telecom-grade surge waveforms (IEC 61000-4-5, 10/700 μs equivalent). |
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; 58 V VBR, 400 W PPPM; higher RθJA (190 °C/W) | Larger footprint; less suitable for high-density or AOI-driven production | Select when legacy SMA layout exists or thermal budget permits larger package |
| SMCJ58A (Littelfuse) | DO-214AB (SMC) package; 58 V VBR, 1500 W PPPM; 7.1 mm × 6.2 mm footprint | Higher surge capacity but incompatible with fine-pitch DFN routing and AOI workflows | Choose for higher-power surge zones where board space allows and AOI is not required |
Compared with SMAJ58A-E3/5A and SMCJ58A, the 6DFN56CA-M3/H delivers identical voltage rating in a 3.95 mm × 2.18 mm footprint with side-wettable flanks, enabling automated optical inspection and superior thermal performance (RθJM = 5–6.5 °C/W) - critical for compact, high-reliability industrial and automotive modules.
Availability
6DFN56CA-M3/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, medical monitoring front-ends, and telecom PHY protection requiring stable component supply and AEC-Q101 qualification.
Supply support for 6DFN56CA-M3/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 and high-performance specifications.
The 6DFNxxCA family is engineered for high-density, high-reliability transient suppression in automotive, industrial, and medical systems - prioritizing low profile, AOI compatibility, and extended temperature operation.
FAQ
What is the exact breakdown voltage range for 6DFN56CA-M3/H?
The 6DFN56CA-M3/H has a guaranteed breakdown voltage (VBR) range of 53.2 V (minimum) to 58.8 V (maximum) at 1.0 mA test current, per Vishay document 98490, page 2. This ±5 % tolerance is specified under standard test conditions (TA = 25 °C) and defines the voltage at which the device transitions from high-impedance to clamping conduction.
Does 6DFN56CA-M3/H require a specific PCB pad layout?
Yes - the 6DFN56CA-M3/H requires the DFN3820A mounting pad layout shown in document 98490, page 5: 3.96 mm × 2.20 mm copper pads with 0.70 mm solder mask opening and 0.86 mm terminal width. Deviations may impair thermal dissipation or AOI detection of solder fillets on side-wettable flanks.
Is 6DFN56CA-M3/H qualified to AEC-Q101?
Yes - the "H" suffix in 6DFN56CA-M3/H denotes AEC-Q101 qualification per Vishay's ordering information table (page 3 of doc 98490). This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114.
What is the maximum clamping voltage of 6DFN56CA-M3/H at rated surge current?
The 6DFN56CA-M3/H clamps to a maximum of 77.0 V at 7.8 A peak pulse current (10/1000 μs waveform), as confirmed in the Electrical Characteristics table (page 2 of doc 98490). This value defines the worst-case voltage seen by protected circuitry during a full-rated surge event.
Can 6DFN56CA-M3/H be used in bidirectional signal lines like RS-485 or CAN?
Yes - the 6DFN56CA-M3/H is explicitly bidirectional with no cathode marking, making it suitable for protecting differential buses such as RS-485 or CAN FD physical layers. Its 47.8 V stand-off voltage and 77.0 V clamping align with 12 V/24 V system rail margins and meet IEC 61000-4-2 ±30 kV requirements for such interfaces.
6DFN56CA-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- 2-VDFN
- Series:
- TRANSZORB®
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN3820A
6DFN56CA-M3/H FAQ
1.How can I place an order for 6DFN56CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN56CA-M3/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 6DFN56CA-M3/H reliable?
The price and inventory of 6DFN56CA-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 6DFN56CA-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN56CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN56CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN56CA-M3/H?
6DFN56CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN56CA-M3/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 6DFN56CA-M3/H?
For technical support, including 6DFN56CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN56CA-M3/H requirements.
6.How does Aetrix verify that 6DFN56CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN56CA-M3/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 6DFN56CA-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN56CA-M3/H?
All 6DFN56CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN56CA-M3/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 6DFN56CA-M3/H part is unused and in its original packaging.
Return procedure for 6DFN56CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN56CA-M3/H Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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onsemi
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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