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Vishay 6DFN39CA-M3/I
- Part No.:
- 6DFN39CA-M3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN39CA-M3/I.pdf
- Description:
- 600W,39V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:13,620
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Product details
Overview
6DFN39CA-M3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in a DFN3820A package, designed for clamping ESD and surge transients on signal/power lines. It features 39 V nominal breakdown voltage (±5 %), 33.3 V stand-off voltage, 53.9 V maximum clamping voltage at 11.1 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It protects sensitive ICs and MOSFETs in industrial sensor interfaces.
For engineers reviewing the 6DFN39CA-M3/I datasheet, 6DFN39CA-M3/I pinout, 6DFN39CA-M3/I application, or 6DFN39CA-M3/I equivalent, key selection criteria include clamping voltage margin relative to protected circuit's absolute maximum rating, junction temperature derating above 25 °C, bidirectional symmetry for AC-coupled lines, and compatibility with AOI inspection due to side-wettable flanks.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low leakage (<1 μA at VWM) and stable bidirectional clamping across -65 °C to +175 °C operating range. Its DFN3820A footprint enables high-density placement while meeting MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
The device delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with thermal resistance junction-to-mount of 5–6.5 °C/W enabling effective heat transfer to PCB copper. It meets IEC 61000-4-2 ±30 kV contact/air discharge immunity without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V - ensures reliable turn-on before protected IC exceeds absolute max rating |
| VWM | 33.3 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| VC @ IPPM | 53.9 V - clamping voltage at 11.1 A limits stress on downstream components |
| PPPM | 600 W - handles lightning-induced surges per IEC 61000-4-5 Level 4 |
| Junction temp. range | -65 °C to +175 °C - supports operation in automotive under-hood and industrial motor control environments |
| ESD immunity | ±30 kV (IEC 61000-4-2) - eliminates need for additional ESD protection on exposed ports |
| Package | DFN3820A (3.95 mm × 2.18 mm × 0.88 mm) - compatible with SMP (DO-220AA) layout and AOI inspection |
Pinout & Package
DFN3820A is a 2-terminal, leadless surface-mount package with side-wettable flanks. No polarity marking; terminals are symmetrical for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired with Terminal 1 to form symmetric clamping path; enables AC line protection without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing post-reflow defect escape |
| Low-profile height (0.88 mm) | Supports ultra-thin end equipment such as portable medical sensors and wearables with strict Z-height constraints |
| Halogen-free, RoHS-compliant M3 suffix | Meets IPC-1752A material declaration requirements and JESD201 Class 2 whisker resistance for long-term reliability |
| Bidirectional clamping symmetry | Eliminates need for dual unidirectional devices on differential or AC-coupled signal paths like RS-485 or CAN FD |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking, simplifying SMT assembly planning |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting analog output lines (4–20 mA) and digital I/O (CAN/LIN) in factory-floor pressure/temperature sensors exposed to relay coil flyback and ESD. IC Role / Device Role: Primary transient clamp placed directly at connector entry point before signal conditioning amplifier or transceiver. Use Value: Clamps 600 W surges to ≤53.9 V while maintaining <1 μA leakage at 33.3 V, preserving signal integrity and preventing ADC saturation or MCU reset. | Use Scenario: Safeguarding LIN bus transceivers and door module microcontrollers against load dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role: Bidirectional TVS on LIN data line (VPW) and supply rail, mounted adjacent to connector to minimize loop inductance. Use Value: Withstands ±30 kV ESD and 10/1000 μs surges up to 11.1 A without degradation, ensuring ASIL-B functional safety compliance for non-safety-critical modules. |
| Medical Patient Monitor Port | Telecom DSL Line Card |
Use Scenario: Shielding ECG electrode inputs and USB-C charging ports in portable patient monitors subjected to clinical ESD events and power adapter surges. IC Role / Device Role: First-line protection on analog front-end inputs and USB VBUS line, placed before ESD-rated op-amps and USB PD controllers. Use Value: 0.88 mm profile fits within tight mechanical envelopes; 175 °C max junction temperature supports sterilization cycle exposure during service. | Use Scenario: Guarding ADSL/VDSL line drivers and SLIC circuits against lightning-induced common-mode surges on twisted-pair telecom lines. IC Role / Device Role: Differential-mode TVS across tip/ring pair, used with common-mode chokes to meet ITU-T K.20/K.21 immunity requirements. Use Value: 600 W rating and 53.9 V clamping enable compliance with GR-1089-CORE Level 3 surge testing without derating or parallel staging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Unidirectional, SMA package (4.5 mm × 2.7 mm), 36 V VWM, 58.1 V VC @ 10.3 A | Requires orientation-aware layout; larger footprint increases board area and parasitic inductance | Select when unidirectional protection suffices and legacy SMA footprint reuse is prioritized over density or AOI capability |
| SMCJ33A | Unidirectional, SMC package (7.1 mm × 6.2 mm), 33 V VWM, 53.3 V VC @ 11.3 A, higher PPPM = 1500 W | Higher surge capacity but 3× larger footprint; not AOI-compatible; requires manual inspection or X-ray | Choose for high-energy industrial mains-side protection where space and inspection method are secondary to energy handling |
Compared with SMAJ36A-E3/57T and SMCJ33A, the 6DFN39CA-M3/I offers superior board-level integration via its compact DFN3820A footprint, side-wettable flanks for AOI, and true bidirectionality-making it optimal for space-constrained, high-reliability signal-line protection where layout flexibility and automated manufacturing are critical.
Availability
6DFN39CA-M3/I is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control module, and medical patient monitor port designs requiring stable component supply, consistent M3-grade halogen-free materials, and full traceability through 13" tape-and-reel delivery.
Supply support for 6DFN39CA-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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, optoelectronics, and passive components with emphasis on reliability, efficiency, and miniaturization.
The 6DFNxxCA series was developed to deliver high-power transient suppression in ultra-compact DFN packages for next-generation IoT edge nodes, automotive ECUs, and portable medical devices demanding robust ESD/surge immunity without sacrificing PCB real estate.
FAQ
What is the maximum clamping voltage of the 6DFN39CA-M3/I under standard test conditions?
The 6DFN39CA-M3/I has a maximum clamping voltage (VC) of 53.9 V at 11.1 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per JEDEC and IEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The 6DFN39CA-M3/I maintains this clamping performance across its full operating temperature range.
Does the 6DFN39CA-M3/I require a specific PCB pad layout for thermal performance?
Yes-the 6DFN39CA-M3/I achieves its specified RθJM of 5–6.5 °C/W only when mounted on a 2 oz. copper FR4 PCB using the recommended DFN3820A mounting pad layout from Vishay document 98490. The thermal pad must be fully exposed and connected to internal ground planes via ≥4 thermal vias to ensure reliable operation at 175 °C junction temperature. Deviations reduce surge current handling.
Is the 6DFN39CA-M3/I suitable for protecting CAN FD bus lines?
Yes-the 6DFN39CA-M3/I is well-suited for CAN FD physical layer protection due to its bidirectional symmetry, 33.3 V stand-off voltage (compatible with 12 V nominal bus), and 53.9 V clamping voltage (below ISO 11898-2's 58 V fault threshold). Its DFN3820A package minimizes parasitic inductance, preserving signal integrity up to 5 Mbps. No polarity orientation is required during placement.
What does the "M3" suffix indicate in 6DFN39CA-M3/I?
"M3" denotes Vishay's halogen-free, RoHS-compliant, lead-free termination with matte tin plating, qualified to JESD201 Class 2 for whisker resistance and compliant with IPC-1752A material declarations. It also signifies industrial-grade qualification (not AEC-Q101), making the 6DFN39CA-M3/I appropriate for commercial and industrial-but not automotive safety-critical-applications.
How does the 6DFN39CA-M3/I perform under elevated ambient temperatures?
The 6DFN39CA-M3/I's peak pulse power is derated linearly above TA = 25 °C per Figure 2 in Vishay document 98490, reaching ~50 % of rated 600 W at 100 °C ambient. Its -65 °C to +175 °C junction range allows sustained operation in hot environments when PCB thermal design meets the specified RθJA (140–175 °C/W) and RθJM targets. Derating curves are validated per JEDEC 51-2A and 51-14.
6DFN39CA-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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 11.1A
- 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
6DFN39CA-M3/I FAQ
1.How can I place an order for 6DFN39CA-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN39CA-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 6DFN39CA-M3/I reliable?
The price and inventory of 6DFN39CA-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 6DFN39CA-M3/I is usually 5 days.
3.What payment methods are accepted for 6DFN39CA-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN39CA-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN39CA-M3/I?
6DFN39CA-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN39CA-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 6DFN39CA-M3/I?
For technical support, including 6DFN39CA-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN39CA-M3/I requirements.
6.How does Aetrix verify that 6DFN39CA-M3/I is sourced from the original manufacturer or authorized distributors?
All 6DFN39CA-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 6DFN39CA-M3/I meets industry standards.
7.What is the process for return or replacement of 6DFN39CA-M3/I?
All 6DFN39CA-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN39CA-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 6DFN39CA-M3/I part is unused and in its original packaging.
Return procedure for 6DFN39CA-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN39CA-M3/I Tags
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ESD9B5.0ST5G
onsemi
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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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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
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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