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Vishay 6DFN56CA-M3/I
- Part No.:
- 6DFN56CA-M3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN56CA-M3/I.pdf
- Description:
- 600W,56V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
6DFN56CA-M3/I from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, with 56 V nominal breakdown voltage (VBR), 47.8 V stand-off voltage (VWM), 77.0 V maximum clamping voltage at 7.8 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It protects signal lines in sensor units and MOSFET gate drivers against lightning-induced transients and inductive switching surges.
For engineers reviewing the 6DFN56CA-M3/I datasheet, 6DFN56CA-M3/I pinout, 6DFN56CA-M3/I application, or 6DFN56CA-M3/I equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, thermal resistance (RθJA = 140–175 °C/W), bidirectional polarity, MSL Level 1 moisture sensitivity, and side-wettable flanks for AOI-compatible solder joint inspection.
Technical Context
This device implements an anisotropic rectifier structure with junction passivation optimized for low-leakage transient suppression. Its bidirectional configuration enables symmetrical clamping on AC-coupled or floating signal paths without polarity constraints.
It delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with clamping performance validated up to TJ = 175 °C and thermal impedance characterized per JEDEC 51-2A (RθJA) and 51-14 (RθJM). ESD immunity meets IEC 61000-4-2 at ±30 kV (contact/air).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 53.2 / 56.0 / 58.8 V - ensures reliable conduction onset above system operating voltage while maintaining margin below protected device's absolute max rating |
| VWM | 47.8 V - maximum continuous reverse voltage before significant leakage; sets upper limit for DC bias in protected line |
| VC @ IPPM | 77.0 V - clamping voltage at 7.8 A peak surge; determines worst-case overvoltage seen by downstream circuitry |
| PPPM | 600 W - peak pulse power handling capability under 10/1000 μs waveform; defines transient energy absorption capacity |
| TJ max | +175 °C - maximum junction temperature; supports operation in high-ambient industrial environments |
| RθJA | 140–175 °C/W - thermal resistance junction-to-ambient on FR4; informs PCB copper area requirements for sustained surge duty |
| ESD Rating | ±30 kV (IEC 61000-4-2) - qualifies for robust electrostatic discharge protection in exposed interfaces |
Pinout & Package
Package: DFN3820A - leadless, 2-terminal surface-mount package measuring 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), with side-wettable flanks for automated optical inspection (AOI) and compatible footprint with SMP (DO-220AA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Transient current path terminal | No polarity marking; terminals are functionally interchangeable - enables placement without orientation check during automated assembly |
| Exposed pad (bottom) | Thermal and electrical reference | Not electrically connected; serves as thermal conduction path to PCB copper - requires solder paste stencil design per Vishay DFN3820A mounting guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating differential signals (e.g., RS-485, CAN bus, sensor bridges) without polarity dependency |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder fillets - eliminates need for X-ray inspection in high-volume manufacturing |
| MSL Level 1 rating | Allows unlimited floor life at ≤30 °C/60 % RH - simplifies SMT line logistics and eliminates bake requirements prior to reflow |
| Halogen-free, RoHS-compliant (M3) | Meets JESD201 Class 2 whisker resistance and global environmental compliance mandates for industrial and medical end equipment |
| Low-profile height (0.88 mm) | Enables use in space-constrained modules such as wearable sensors, compact motor controllers, and stacked PCB assemblies |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Signal Lines |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation panels exposed to relay coil flyback and nearby arc welding noise. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector entry point, shunting surge energy before it reaches precision ADC or op-amp front-end. Use Value: Clamps induced transients to ≤77.0 V, preserving integrity of 24 V-rated signal conditioning ICs and preventing latch-up or parametric drift after repeated 600 W surges. | Use Scenario: Safeguarding LIN bus communication lines between door module ECUs and central body controller in passenger vehicles subjected to load dump and ISO 7637-2 pulse 5a. IC Role / Device Role / Timing Role: Bidirectional TVS mounted adjacent to LIN transceiver input pins to clamp both positive and negative polarity transients without polarity-sensitive layout. Use Value: Maintains signal integrity during 30 kV ESD events and 10/1000 μs surges up to 7.8 A while meeting automotive-grade reliability (M3 termination, 175 °C TJ max). |
| Medical Patient Monitoring Lead Protection | Telecom DSL Line Card Surge Suppression |
Use Scenario: Shielding ECG/EEG electrode interface circuits from electrostatic discharge during patient connection and defibrillator recovery pulses. IC Role / Device Role / Timing Role: First-line transient suppressor on isolated analog front-end inputs, placed before instrumentation amplifier and isolation barrier. Use Value: Limits voltage excursion to <77 V during ±30 kV contact discharge, ensuring patient safety compliance (IEC 60601-1) and preventing damage to ultra-low-noise amplifiers. | Use Scenario: Protecting ADSL/VDSL line driver/receiver ICs on central office DSLAM cards from lightning-induced surges entering via twisted-pair copper lines. IC Role / Device Role / Timing Role: Primary surge arrestor on line-side transformer secondary, absorbing energy before it reaches integrated line transceiver. Use Value: Handles 600 W peak pulse power with 47.8 V stand-off, enabling compatibility with -48 V telecom supply rails while clamping to safe levels for 5 V tolerant PHY ICs. |
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, 49.5 V VWM, 93.6 V VC @ 6.4 A; higher clamping voltage, larger footprint | Requires more PCB area; lacks side-wettable flanks and MSL Level 1 rating - unsuitable for high-density AOI-driven production | Select when legacy through-hole or SMA layout exists and thermal mass requirements exceed DFN3820A capability |
| SMCJ58A (Littelfuse) | DO-214AB (SMC) package; 58 V VBR, 49.5 V VWM, 93.6 V VC @ 6.4 A; same clamping but 1500 W PPPM; larger thermal mass | Higher surge rating suits infrequent high-energy events (e.g., outdoor telecom); incompatible with fine-pitch automated placement | Choose for applications requiring >1000 W surge handling where board space and AOI are not constraints |
Compared with SMAJ58A-E3/5A and SMCJ58A, the 6DFN56CA-M3/I offers superior board-level integration density, AOI-ready side-wettable flanks, lower profile (0.88 mm), and tighter clamping (77.0 V vs. ≥93.6 V), making it optimal for modern compact, high-volume electronics where layout efficiency and process yield are critical.
Availability
6DFN56CA-M3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, medical patient monitoring systems, and telecom DSL line cards requiring stable component supply across extended product lifecycles.
Supply support for 6DFN56CA-M3/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 including diodes, rectifiers, and transient suppressors, with emphasis on reliability, precision, and application-specific optimization.
The 6DFN56CA-M3/I belongs to Vishay's TRANSZORB® DFN family, engineered specifically for high-density, AOI-compatible transient protection in space-constrained industrial, automotive, and medical electronics where low-profile packaging and robust surge immunity are mandatory.
FAQ
What is the breakdown voltage tolerance of the 6DFN56CA-M3/I?
The 6DFN56CA-M3/I has a breakdown voltage tolerance of ±5 %, specified as 53.2 V (min) to 58.8 V (max) at 1.0 mA test current. This tight tolerance ensures predictable clamping onset across production lots and supports precise coordination with downstream overvoltage protection thresholds in protected circuits. The nominal VBR of 56.0 V is measured at 25 °C and remains stable over the full operating temperature range.
Does the 6DFN56CA-M3/I require orientation during PCB placement?
No, the 6DFN56CA-M3/I does not require orientation during PCB placement because it is a bidirectional transient voltage suppressor with no cathode band or polarity marking. Both terminals are functionally identical, allowing unrestricted placement in automated SMT processes. This eliminates orientation verification steps and reduces placement error risk in high-speed pick-and-place operations.
What is the maximum clamping voltage of the 6DFN56CA-M3/I and at what current is it specified?
The maximum clamping voltage of the 6DFN56CA-M3/I is 77.0 V, specified at a peak pulse current (IPPM) of 7.8 A under the standard 10/1000 μs waveform. This value represents the worst-case voltage imposed on protected circuitry during a surge event and is measured at TA = 25 °C with derating applied above that temperature per the published derating curve in the datasheet.
Is the 6DFN56CA-M3/I compliant with automotive qualification standards?
The 6DFN56CA-M3/I is rated for industrial grade operation (M3 suffix) and meets JESD201 Class 2 whisker resistance and RoHS/halogen-free requirements, but it is not AEC-Q101 qualified. For automotive applications requiring AEC-Q101 certification, engineers should consider the H-suffix variants (e.g., 6DFN56CA-H) within the same family, which undergo additional stress testing per the AEC standard.
How does the DFN3820A package of the 6DFN56CA-M3/I support automated optical inspection (AOI)?
The DFN3820A package of the 6DFN56CA-M3/I features side-wettable flanks - metallized sidewalls that allow solder to wick visibly along the vertical edge during reflow. This enables standard AOI systems to inspect solder joint quality without requiring X-ray imaging, improving first-pass yield and reducing inspection cost in high-volume manufacturing. The feature is explicitly validated per Vishay's mechanical drawings and process guidelines.
6DFN56CA-M3/I 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/I FAQ
1.How can I place an order for 6DFN56CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN56CA-M3/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 6DFN56CA-M3/I reliable?
The price and inventory of 6DFN56CA-M3/I 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/I is usually 5 days.
3.What payment methods are accepted for 6DFN56CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN56CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN56CA-M3/I?
6DFN56CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN56CA-M3/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 6DFN56CA-M3/I?
For technical support, including 6DFN56CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN56CA-M3/I requirements.
6.How does Aetrix verify that 6DFN56CA-M3/I is sourced from the original manufacturer or authorized distributors?
All 6DFN56CA-M3/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 6DFN56CA-M3/I meets industry standards.
7.What is the process for return or replacement of 6DFN56CA-M3/I?
All 6DFN56CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN56CA-M3/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 6DFN56CA-M3/I part is unused and in its original packaging.
Return procedure for 6DFN56CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN56CA-M3/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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