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Vishay 6DFN39A-M3/H
- Part No.:
- 6DFN39A-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN39A-M3/H.pdf
- Description:
- 600W,39V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,935
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Product details
Overview
6DFN39A-M3/H from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, with 39 V nominal breakdown voltage (VBR = 37.1–41.0 V), 33.3 V stand-off voltage (VWM), 53.9 V clamping voltage at 11.1 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It protects MOSFETs and signal lines in industrial sensor units against lightning-induced transients.
For engineers reviewing the 6DFN39A-M3/H datasheet, 6DFN39A-M3/H pinout, 6DFN39A-M3/H application, or 6DFN39A-M3/H equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal resistance (RθJA = 140–175 °C/W), MSL Level 1 rating, side-wettable flanks for AOI, and AEC-Q101 qualification indicated by /H suffix.
Technical Context
This device employs passivated anisotropic rectifier technology optimized for low-clamping unidirectional TVS operation. Its junction passivation and DFN3820A package enable high surge current handling (11.1 A IPPM) with minimal parasitic capacitance and robust thermal performance (TJ max = 175 °C).
The 6DFN39A-M3/H operates as a single-channel, cathode-marked transient suppressor with polarity-defined anode-to-heatsink connection. It meets IEC 61000-4-2 ESD immunity up to ±30 kV (contact/air) and is rated for industrial-grade reliability per JESD201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 37.1 / 39.0 / 41.0 V - ensures reliable conduction onset above 33.3 V operating voltage while maintaining margin against false triggering |
| VWM | 33.3 V - maximum continuous reverse voltage before leakage exceeds 1 μA, defining safe operating window for protected circuitry |
| VC @ IPPM | 53.9 V - clamping voltage at 11.1 A surge, limiting downstream voltage stress during 600 W transient events |
| RθJA | 140–175 °C/W - junction-to-ambient thermal resistance determines derating capability on standard FR4 PCBs |
| TJ max | +175 °C - maximum junction temperature enables operation in high-ambient industrial environments without thermal shutdown |
| ESD Rating | ±30 kV (IEC 61000-4-2) - provides system-level electrostatic discharge protection without external shielding |
| MSL Level | Level 1 (J-STD-020) - supports standard reflow profiles up to 260 °C peak, eliminating moisture sensitivity concerns |
Pinout & Package
Package: DFN3820A - leadless, low-profile (0.88 mm typical height), side-wettable flanks for automated optical inspection and solder joint quality verification. Cathode marked by color band; heatsink (exposed pad) is anode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (exposed pad) | Current return path / thermal interface | Electrically connected to cathode-side PCB copper pour for enhanced heat dissipation and low-inductance grounding |
| Cathode (marked pin) | Transient current sink | Connected to protected line; conducts surge current to anode when VWM exceeded, clamping voltage to ≤53.9 V |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection of solder fillet integrity without X-ray, reducing post-reflow defect escape |
| Halogen-free, RoHS-compliant M3 termination | Meets IPC-J-STD-020 and JESD201 Class 2 whisker requirements for long-term reliability in harsh environments |
| Low-profile DFN3820A footprint | 0.078 × 0.086 inch (1.98 × 2.18 mm) body with 0.88 mm height - saves board space vs. DO-220AA while maintaining same thermal interface |
| AEC-Q101 qualified (/H suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - suitable for under-hood sensor protection |
Applications
| Industrial Sensor Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in factory automation PLCs exposed to relay coil flyback transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between sensor output and MCU ADC input to clamp surges before damage occurs. Use Value: 53.9 V clamping at 11.1 A limits voltage seen by 3.3 V or 5 V ADC front-end to non-destructive levels during 600 W transients. | Use Scenario: Safeguarding LIN bus transceiver I/O pins in door module ECUs subjected to load dump and ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS suppressing fast transients (<100 ns rise time) while maintaining <1 μA leakage at 12 V system voltage. Use Value: 33.3 V VWM allows full operation across automotive battery range (9–16 V) with no DC loading impact on LIN signaling. |
| Medical Patient Monitor Interface | Telecom Power Supply Input |
Use Scenario: Shielding isolated RS-485 communication ports in bedside monitors from ESD and surge coupling via shared ground paths. IC Role / Device Role / Timing Role: Primary transient suppressor on differential bus lines, coordinated with common-mode chokes for EMC compliance. Use Value: ±30 kV IEC 61000-4-2 contact discharge rating meets IEC 60601-1-2 4th edition immunity requirements without additional components. | Use Scenario: Secondary-side overvoltage protection on 48 V telecom DC-DC converter outputs feeding sensitive baseband processors. IC Role / Device Role / Timing Role: Fast-response clamping device placed after filtering stage to absorb residual switching spikes and lightning-induced surges. Use Value: 175 °C TJ max and 140 °C/W RθJA support sustained operation in sealed, high-temperature telecom enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | DO-214AC package, 36 V VWM, 58.1 V VC @ 10.3 A, RθJA ≈ 50 °C/W higher, no side-wettable flanks | Requires manual AOI or X-ray for solder joint verification; less suitable for ultra-dense layouts due to larger footprint | Select when legacy SMA footprint compatibility is required and thermal budget allows higher junction temperature rise |
| SMCJ36AHE3/73 | DO-214AB package, 36 V VWM, 58.1 V VC @ 10.3 A, 1500 W PPPM rating, no AEC-Q101 qualification | Higher power handling but lacks automotive qualification and side-wettable flanks; larger board area consumption | Choose for non-automotive 1500 W surge applications where DFN size constraints do not apply |
Compared with SMAJ36A-E3/57T and SMCJ36AHE3/73, the 6DFN39A-M3/H delivers superior manufacturability via AOI-compatible side-wettable flanks, tighter thermal resistance control, and AEC-Q101 validation - critical for high-reliability automotive and industrial deployments where board space and process yield are constrained.
Availability
6DFN39A-M3/H is available at Aetrix Electronics and suitable for industrial sensor protection, automotive body control modules, and medical patient monitor interfaces requiring stable component supply, consistent M3 halogen-free material compliance, and AEC-Q101 qualified reliability.
Supply support for 6DFN39A-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, with global manufacturing and test facilities supporting high-volume industrial and automotive demand.
The 6DFN39A-M3/H belongs to Vishay's TRANSZORB® DFN family, engineered specifically for space-constrained, high-reliability transient suppression in automotive, industrial, and medical systems where AOI compatibility and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance for 6DFN39A-M3/H?
The 6DFN39A-M3/H has a ±5 % breakdown voltage tolerance, specified as 37.1 V (min) to 41.0 V (max) at 1.0 mA test current. This tight tolerance ensures predictable clamping behavior across production lots and supports precise overvoltage margin design in safety-critical circuits such as automotive sensor interfaces.
Does 6DFN39A-M3/H meet AEC-Q101 requirements?
Yes, the /H suffix in 6DFN39A-M3/H explicitly denotes AEC-Q101 qualification. The device has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114, making it suitable for automotive applications such as body control modules and ADAS sensor protection where reliability under thermal and electrical stress is essential.
What does the M3 suffix indicate in 6DFN39A-M3/H?
The M3 suffix in 6DFN39A-M3/H indicates halogen-free, RoHS-compliant construction with matte tin-plated terminals that satisfy J-STD-002 solderability and JESD22-B102 wetting requirements. It also confirms compliance with JESD201 Class 2 whisker resistance, ensuring long-term interconnect integrity in high-vibration or high-temperature environments.
How is thermal performance characterized for 6DFN39A-M3/H?
Thermal performance of 6DFN39A-M3/H is defined by RθJA = 140–175 °C/W (junction-to-ambient, JEDEC 51-2A, FR4 PCB) and RθJM = 5–6.5 °C/W (junction-to-mount, JEDEC 51-14 TDIM). These values reflect its DFN3820A package's efficient heat transfer through the exposed anode pad to the PCB copper, enabling sustained operation up to +175 °C junction temperature.
Can 6DFN39A-M3/H be used in bidirectional configurations?
No, 6DFN39A-M3/H is strictly unidirectional, as confirmed by its polarity marking (cathode band) and electrical specifications including VWM and VBR defined only for reverse-biased operation. For bidirectional transient suppression, Vishay offers separate dual-diode configurations such as the 6DFN39C-M3/H, which is not interchangeable with the 6DFN39A-M3/H.
6DFN39A-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:
- 1
- Bidirectional Channels:
- -
- 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
6DFN39A-M3/H FAQ
1.How can I place an order for 6DFN39A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN39A-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 6DFN39A-M3/H reliable?
The price and inventory of 6DFN39A-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 6DFN39A-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN39A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN39A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN39A-M3/H?
6DFN39A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN39A-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 6DFN39A-M3/H?
For technical support, including 6DFN39A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN39A-M3/H requirements.
6.How does Aetrix verify that 6DFN39A-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN39A-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 6DFN39A-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN39A-M3/H?
All 6DFN39A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN39A-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 6DFN39A-M3/H part is unused and in its original packaging.
Return procedure for 6DFN39A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN39A-M3/H Tags
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