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Vishay General Semiconductor - Diodes Division 6DFN12A-M3/I
- Part No.:
- 6DFN12A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN12A-M3/I.pdf
- Description:
- 600W,12V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:13,970
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Product details
Overview
6DFN12A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in DFN3820A package, featuring 12 V nominal breakdown voltage (VBR = 11.4–12.6 V), 10.2 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), and 35.9 V clamping voltage at 35.9 A peak surge current - deployed for ESD and lightning transient protection on signal lines of sensor units and MOSFET gate drivers in industrial and medical electronics.
For engineers reviewing the 6DFN12A-M3/I datasheet, 6DFN12A-M3/I pinout, 6DFN12A-M3/I application, or 6DFN12A-M3/I equivalent, key selection criteria include unidirectional clamping behavior, low-profile DFN3820A footprint with side-wettable flanks for AOI, 175 °C max junction temperature, MSL Level 1 rating, and halogen-free RoHS-compliant M3 termination.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response to transients up to 600 W (10/1000 μs). Its unidirectional configuration provides reverse-biased clamping only, with cathode marked by color band and anode connected to heatsink - enabling precise overvoltage suppression without forward conduction during normal operation.
The DFN3820A package delivers thermal resistance RθJA ≤ 175 °C/W (FR4, 2 oz) and RθJM ≤ 6.5 °C/W (mount), supporting high-reliability operation across -65 °C to +175 °C junction range. It meets IEC 61000-4-2 ±30 kV contact/air ESD immunity and J-STD-020 MSL Level 1 reflow compatibility (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V - defines precise voltage threshold at which clamping initiates under 1 mA test current |
| VWM | 10.2 V - maximum continuous reverse operating voltage before leakage exceeds 2 μA |
| VC @ IPPM | 35.9 V - clamped voltage seen by protected circuit during 35.9 A 10/1000 μs surge |
| PPPM | 600 W - peak transient energy absorption capability per standardized waveform |
| Junction temp. range | -65 °C to +175 °C - enables deployment in under-hood automotive, industrial motor drives, and medical power supplies |
| ESD immunity | ±30 kV (IEC 61000-4-2) - ensures robustness against human-body-model electrostatic discharge events |
| Package | DFN3820A - 2.18 × 3.95 mm, 0.88 mm height, side-wettable flanks for automated optical inspection |
Pinout & Package
DFN3820A is a 2-terminal leadless package with exposed anode pad acting as thermal and electrical connection point; polarity indicated by cathode marking band. The device has no internal bonding wires - terminals are formed directly from the silicon die's anode and cathode metallization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (exposed pad) | Common reference and heat sink node | Connected to PCB copper pour for thermal dissipation and low-inductance return path |
| Cathode (top-side marked terminal) | Transient voltage sensing and clamping node | Connected to protected line; conducts during overvoltage to shunt surge current to anode |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joint quality without X-ray |
| Low profile (0.88 mm height) | Reduces board stack height in space-constrained portable and wearable medical devices |
| M3 termination | Halogens-free, RoHS-compliant matte tin plating meeting JESD 201 Class 2 whisker resistance |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak without baking |
| Passivated anisotropic rectifier | Delivers stable VBR tolerance (±5 %) and low leakage (<2 μA at VWM) over full temperature range |
Applications
| Industrial Sensor Interface Protection | Medical Device Signal Line Clamping |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors from inductive switching spikes in factory automation PLCs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients within 1 ns to limit voltage excursion below IC input absolute maximum rating. Use Value: Prevents latch-up or permanent damage to precision ADC front-ends while maintaining <2 μA leakage at 10.2 V operating voltage. | Use Scenario: Safeguarding UART, I²C, and SPI communication lines between patient-monitor microcontrollers and external diagnostic modules. IC Role / Device Role / Timing Role: Fast-response transient suppressor on bidirectional data lines, leveraging low capacitance (typ. 150 pF at 0 V) to avoid signal integrity degradation. Use Value: Maintains signal rise/fall times <10 ns while absorbing ±30 kV ESD events per IEC 61000-4-2 without disrupting data transmission. |
| Automotive Body Control Module Inputs | Power Supply Rail Clamp for MOSFET Drivers |
Use Scenario: Shielding LIN bus inputs and switch sense pins in BCMs from load-dump and jump-start induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 10.2 V) placed upstream of voltage supervisor ICs to prevent false resets during 12 V system transients. Use Value: Withstands 175 °C junction temperature and passes AEC-Q101 stress tests when paired with 6DFN12A-M3/H variant - this M3/I variant shares identical electrical specs and thermal design. | Use Scenario: Clamping gate-source voltage of N-channel MOSFETs driving solenoids or relays in industrial motor control inverters. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to source (anode), limiting VGS to safe levels during turn-off voltage spikes. Use Value: 35.9 V clamping voltage ensures gate oxide remains below 40 V stress threshold even during 600 W 10/1000 μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | DO-214AC package (larger, 4.5 × 2.7 mm), higher RθJA (~150 °C/W), same VBR/VC specs | Less suitable for ultra-thin designs; requires larger PCB area and lacks side-wettable flanks for AOI | Select when legacy through-hole or larger SMT footprint is acceptable and AOI is not required |
| SMF12A | SOD-123FL package (3.7 × 1.7 mm), lower PPPM (200 W), higher VC (38.9 V at 16.6 A) | Insufficient for 600 W surge environments; limited to low-energy ESD-only scenarios | Choose only for cost-sensitive consumer applications where peak surge energy remains below 200 W |
Compared with SMAJ12A and SMF12A, the 6DFN12A-M3/I offers superior board-area efficiency, AOI-compatible solder joints, and full 600 W surge handling in a 2.18 × 3.95 mm footprint - making it optimal for next-generation compact industrial and medical PCBs requiring verified high-energy transient immunity.
Availability
6DFN12A-M3/I is available at Aetrix Electronics and suitable for industrial sensor interface protection, medical device signal line clamping, and automotive body control module inputs requiring stable component supply and long-term lifecycle support.
Supply support for 6DFN12A-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, TVS, MOSFETs, and optoelectronics with emphasis on reliability, power efficiency, and miniaturization.
The 6DFN12A-M3/I belongs to Vishay's TRANSZORB® DFN series - engineered specifically for high-density, high-reliability transient suppression in space-constrained industrial, medical, and automotive electronics where thermal performance and automated assembly are critical.
FAQ
What is the exact breakdown voltage range for 6DFN12A-M3/I at 1 mA test current?
The 6DFN12A-M3/I has a guaranteed breakdown voltage (VBR) range of 11.4 V (minimum) to 12.6 V (maximum) at 1 mA test current, with 12.0 V nominal. This ±5 % tolerance ensures consistent clamping initiation across production lots and temperature extremes from -65 °C to +175 °C.
Does 6DFN12A-M3/I support automatic optical inspection (AOI) during PCB assembly?
Yes, the 6DFN12A-M3/I uses a DFN3820A package with side-wettable flanks explicitly designed for AOI. Its coplanar solder terminations allow machine vision systems to verify solder fillet formation without requiring X-ray inspection - reducing post-SMT defect escape rates in high-volume manufacturing.
What is the maximum clamping voltage of 6DFN12A-M3/I under a 10/1000 μs surge?
The 6DFN12A-M3/I exhibits a maximum clamping voltage (VC) of 35.9 V when subjected to its rated 35.9 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 98464 and defines the worst-case voltage imposed on the protected circuit during surge events.
Is 6DFN12A-M3/I compliant with RoHS and halogen-free requirements?
Yes, the "M3" suffix in 6DFN12A-M3/I confirms halogen-free, RoHS-compliant construction with matte tin-plated terminations. It meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability standards - verified per Vishay's material categorization document 99912.
How does the thermal performance of 6DFN12A-M3/I compare to traditional SMB/SMA packages?
The 6DFN12A-M3/I achieves RθJM ≤ 6.5 °C/W (junction-to-mount) - significantly lower than SMB (RθJM ≈ 12 °C/W) due to its exposed anode thermal pad. This enables higher sustained surge duty cycles and improved reliability in thermally demanding environments such as motor drive control boards.
6DFN12A-M3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 2-VDFN
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- 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
6DFN12A-M3/I FAQ
1.How can I place an order for 6DFN12A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN12A-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 6DFN12A-M3/I reliable?
The price and inventory of 6DFN12A-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 6DFN12A-M3/I is usually 5 days.
3.What payment methods are accepted for 6DFN12A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN12A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN12A-M3/I?
6DFN12A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN12A-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 6DFN12A-M3/I?
For technical support, including 6DFN12A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN12A-M3/I requirements.
6.How does Aetrix verify that 6DFN12A-M3/I is sourced from the original manufacturer or authorized distributors?
All 6DFN12A-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 6DFN12A-M3/I meets industry standards.
7.What is the process for return or replacement of 6DFN12A-M3/I?
All 6DFN12A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN12A-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 6DFN12A-M3/I part is unused and in its original packaging.
Return procedure for 6DFN12A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN12A-M3/I Tags
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