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Vishay 6DFN20CA-M3/H
- Part No.:
- 6DFN20CA-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN20CA-M3/H.pdf
- Description:
- 600W,20V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,411
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Product details
Overview
6DFN20CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, with 20 V nominal breakdown voltage (VBR = 19.0–21.0 V), 17.1 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), and 21.7 A peak pulse current (IPPM). It protects MOSFETs and signal lines in industrial sensor interfaces against lightning-induced transients.
For engineers reviewing the 6DFN20CA-M3/H datasheet, 6DFN20CA-M3/H pinout, 6DFN20CA-M3/H application, or 6DFN20CA-M3/H equivalent, key selection criteria include clamping voltage (VC = 27.7 V at IPPM), low-profile DFN3820A footprint (3.95 mm × 2.18 mm), MSL Level 1 rating, and AEC-Q101 qualification indicated by the "H" suffix.
Technical Context
This device uses anisotropic rectifier technology with junction passivation to deliver bidirectional ESD and surge protection without polarity marking. Its clamping behavior is defined across -65 °C to +175 °C operating range, with thermal resistance RθJA up to 175 °C/W on FR4 PCB.
The 6DFN20CA-M3/H meets IEC 61000-4-2 ±30 kV contact/air discharge immunity and is rated for 600 W peak pulse power under standardized 10/1000 μs waveform conditions. Its low 0.88 mm profile and side-wettable flanks support AOI-compatible automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 19.0 / 20.0 / 21.0 V - ensures reliable conduction onset above system operating voltage |
| VWM | 17.1 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| VC @ IPPM | 27.7 V - clamped voltage during 21.7 A surge, limiting stress on downstream ICs |
| PPPM | 600 W - surge energy handling per 10/1000 μs waveform, validated per Fig. 1 |
| IPPM | 21.7 A - peak surge current capability at rated clamping voltage |
| TJ max | +175 °C - enables operation in high-temperature industrial environments |
| ESD immunity | ±30 kV (IEC 61000-4-2) - robust protection against human-body-model discharges |
Pinout & Package
Package: DFN3820A - leadless, 2-terminal surface-mount package measuring 3.95 mm × 2.18 mm × 0.88 mm, with side-wettable flanks for AOI compatibility and MSL Level 1 reflow capability (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | No polarity marking; symmetric terminals enable placement without orientation check |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; forms single-channel bidirectional clamp path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or differential signal lines without polarity constraints |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder joints on both sides of the DFN outline |
| AEC-Q101 qualified (H suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
| Halogen-free, RoHS-compliant (M3) | Meets IPC-1752A material declaration requirements and JEDEC JESD201 Class 2 whisker resistance |
| Low-profile height (0.88 mm) | Reduces board stack height in space-constrained modules such as sensor edge nodes and portable medical devices |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Signal Lines |
|---|---|
Use Scenario: Protecting 24 V CAN/LIN bus signal traces in factory automation sensors exposed to relay coil flyback and ESD events. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at connector entry point to shunt surges before reaching level translators or microcontrollers. Use Value: Clamps 21.7 A surges to ≤27.7 V, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding LIN bus inputs in door module ECUs subjected to load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across LIN data line and ground to absorb ±30 kV ESD and 600 W inductive spikes. Use Value: AEC-Q101 qualification ensures compliance with automotive environmental stress testing, including 1000-cycle temperature cycling (-40 °C to +125 °C). |
| Medical Patient Monitoring Front-End | Telecom Power Supply Input Stage |
Use Scenario: Shielding analog front-end inputs of ECG/SpO₂ modules from electrostatic discharge during clinical handling. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to instrumentation amplifier inputs to suppress fast-rising ESD without distorting small-signal integrity. Use Value: 0.88 mm height minimizes parasitic inductance and preserves signal fidelity in high-gain, low-noise measurement paths. | Use Scenario: Protecting 48 V DC-DC converter input rails in PoE-powered telecom equipment against lightning-induced surges on Ethernet cabling. IC Role / Device Role / Timing Role: Primary-level TVS installed between input bulk capacitor and upstream fuse to limit transient overvoltage before regulation stage. Use Value: 600 W peak pulse rating handles multi-kA surge currents typical in outdoor telecom installations per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A-E3/57T | DO-214AC package (larger footprint, 4.5 mm × 2.7 mm), unidirectional, 3.3 mm height | Lacks AEC-Q101 qualification and side-wettable flanks; not AOI-optimized | Select when legacy through-hole or larger SMT footprint is acceptable and bidirectionality is not required. |
| SMCJ20AHE3/73 | DO-214AB package (7.1 mm × 6.2 mm), unidirectional, 2.6 mm height, 1500 W rating | Higher power but incompatible with space-constrained DFN layouts; no MSL Level 1 rating | Choose only for higher-energy surge environments where board area permits larger case size. |
Compared with SMAJ20A-E3/57T and SMCJ20AHE3/73, the 6DFN20CA-M3/H delivers superior board-area efficiency (3.95 mm × 2.18 mm), automated optical inspectability, and automotive-grade reliability-making it optimal for next-generation compact, high-reliability sensor and control modules.
Availability
6DFN20CA-M3/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, and medical monitoring systems requiring stable component supply, AEC-Q101 compliance, and low-profile DFN packaging.
Supply support for 6DFN20CA-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and transient suppressors for industrial, automotive, and computing markets.
The 6DFN20CA-M3/H belongs to the TRANSZORB® DFN family, engineered specifically for high-density, AOI-compatible ESD/surge protection in space-constrained and thermally demanding applications.
FAQ
What is the clamping voltage of the 6DFN20CA-M3/H under maximum surge conditions?
The 6DFN20CA-M3/H exhibits a maximum clamping voltage (VC) of 27.7 V when subjected to its rated peak pulse current of 21.7 A (10/1000 μs waveform). This value is measured per Figure 3 in Vishay document 98490 and defines the upper voltage limit imposed on protected circuitry during transient events.
Does the 6DFN20CA-M3/H require orientation-specific placement on PCB?
No-the 6DFN20CA-M3/H is a bidirectional TVS with no cathode band or polarity marking. Both terminals are functionally identical, allowing zero-orientation placement during automated assembly. This simplifies pick-and-place programming and eliminates orientation-related assembly defects.
Is the 6DFN20CA-M3/H qualified for automotive applications?
Yes-the "H" suffix in 6DFN20CA-M3/H denotes AEC-Q101 qualification. Vishay validates this part for automotive use per stress test conditions including HTOL, temperature cycling, and ESD, making it suitable for body electronics, infotainment, and ADAS subsystems.
What is the thermal resistance of the 6DFN20CA-M3/H from junction to ambient?
The 6DFN20CA-M3/H has a maximum junction-to-ambient thermal resistance (RθJA) of 175 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A. This value assumes a 2 oz. copper footprint and is critical for derating peak power above 25 °C ambient per Figure 2 in the datasheet.
How does the DFN3820A package of the 6DFN20CA-M3/H support automated optical inspection?
The DFN3820A package features side-wettable flanks-exposed metal on the terminal edges-that reflect light uniformly during AOI. This enables reliable solder-joint quality verification without X-ray, reducing post-reflow inspection cost and improving yield in high-volume SMT lines.
6DFN20CA-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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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
6DFN20CA-M3/H FAQ
1.How can I place an order for 6DFN20CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN20CA-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 6DFN20CA-M3/H reliable?
The price and inventory of 6DFN20CA-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 6DFN20CA-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN20CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN20CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN20CA-M3/H?
6DFN20CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN20CA-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 6DFN20CA-M3/H?
For technical support, including 6DFN20CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN20CA-M3/H requirements.
6.How does Aetrix verify that 6DFN20CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN20CA-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 6DFN20CA-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN20CA-M3/H?
All 6DFN20CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN20CA-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 6DFN20CA-M3/H part is unused and in its original packaging.
Return procedure for 6DFN20CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN20CA-M3/H Tags
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