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Vishay 6DFN12A-M3/H
- Part No.:
- 6DFN12A-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN12A-M3/H.pdf
- Description:
- 600W,12V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,954
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Product details
Overview
6DFN12A-M3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DFN3820A package, designed for robust ESD and surge protection of low-voltage signal lines. It features 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), 35.9 V clamping voltage at 35.9 A peak current, and operates from –65 °C to +175 °C - ideal for protecting USB, I²C, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the 6DFN12A-M3/H datasheet, 6DFN12A-M3/H pinout, 6DFN12A-M3/H application, or 6DFN12A-M3/H equivalent, this page delivers verified electrical parameters, AOI-optimized DFN3820A package details, thermal resistance values (RθJA = 140–175 °C/W), IEC 61000-4-2 ±30 kV ESD immunity, and direct alternative part comparisons - all confirmed against Vishay Document #98464 (Rev. 10-Nov-2023).
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for stable clamping under repetitive transients. Its unidirectional configuration provides precise reverse-biased surge suppression while maintaining low leakage (<2.0 μA at VWM) and tight VBR tolerance (±5%).
The DFN3820A package enables high-density PCB layouts with side-wettable flanks for automated optical inspection and solder-joint reliability verification. Thermal performance is characterized per JEDEC 51-2A (RθJA) and JEDEC 51-14 (RθJM = 5–6.5 °C/W), supporting high-power transient dissipation without external heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V - ensures reliable conduction onset above system operating voltage (e.g., 10.2 V VWM) without false triggering |
| VWM | 10.2 V - maximum continuous reverse voltage before significant leakage; matches 12 V rail systems with safety margin |
| IPPM (10/1000 μs) | 35.9 A - peak surge current capability enabling protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 3.3–5 V lines |
| VC @ IPPM | 16.7 V - clamping voltage limits downstream IC stress to safe levels during full-rated surge events |
| PPPM | 600 W - peak pulse power rating validated per standard 10/1000 μs waveform, sufficient for automotive load-dump and inductive switching transients |
| TJ max | +175 °C - extended junction temperature range supports operation in under-hood or enclosed industrial enclosures |
| ESD immunity | ±30 kV contact/air (IEC 61000-4-2) - eliminates need for additional ESD stages in front-end protection designs |
Pinout & Package
Package: DFN3820A - leadless, halogen-free, RoHS-compliant surface-mount package measuring 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), with side-wettable flanks for AOI compatibility and M3 matte tin terminations qualified to JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (heatsink pad) | Current return path and thermal interface | Exposed copper pad beneath device body serves as primary heat sink and low-inductance ground connection; must be soldered to large PCB copper area |
| Cathode (marked end) | Transient current entry point | Color band denotes cathode; connects to protected line (e.g., USB D+); conducts surge current toward grounded anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DFN3820A | 0.88 mm typical height enables use in space-constrained portable and automotive modules where height <1 mm is mandatory |
| Side-wettable flanks | Enables 100% automated optical inspection (AOI) of solder joints without X-ray, reducing manufacturing defect escape rate |
| MSL Level 1 (260 °C) | Allows single-reflow assembly without moisture sensitivity concerns - no baking required prior to SMT placement |
| Unidirectional configuration | Provides precise clamping only during negative transients on positive-rail systems, avoiding DC bias interference on bidirectional data lines |
| AEC-Q101 qualified (H suffix) | Validated for automotive applications including infotainment, ADAS sensors, and body control modules per stress test requirements |
Applications
| USB 2.0 Data Line Protection | Automotive CAN FD Transceiver Interface |
|---|---|
|
Use Scenario: Protecting high-speed USB 2.0 D+/D− lines in automotive infotainment head units from ESD and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between connector and PHY IC to clamp transients before they reach the transceiver input stage. Use Value: 16.7 V clamping voltage ensures USB PHY inputs (typically rated to 3.6 V abs max) remain within safe operating limits during ±30 kV ESD strikes. |
Use Scenario: Safeguarding CAN FD transceiver pins (e.g., TI TCAN1042) against load dump and ISO 7637-2 pulse 5a in 12 V vehicle networks. IC Role / Device Role / Timing Role: Standoff protection device mounted directly at connector entry point to shunt surge energy to chassis ground. Use Value: 600 W peak pulse power and 175 °C max junction temperature support sustained operation in engine bay environments with repeated surge exposure. |
| Industrial I²C Sensor Bus | Medical Patient Monitor Signal Inputs |
|
Use Scenario: Shielding 3.3 V I²C bus lines (SCL/SDA) connecting microcontrollers to temperature/humidity sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 100–200 pF at VWM, per Fig. 4) placed inline to minimize signal integrity impact while suppressing 1 kV EFT bursts. Use Value: 10.2 V VWM prevents leakage-induced logic errors on 3.3 V buses; ±5 % VBR tolerance ensures consistent trigger threshold across production lots. |
Use Scenario: Protecting analog front-end inputs (e.g., ECG, SpO₂) in portable patient monitors from electrostatic discharge during clinical handling. IC Role / Device Role / Timing Role: First-line defense at connector interface, limiting transient voltage to <17 V to prevent damage to precision op-amps and ADCs. Use Value: RθJM = 5–6.5 °C/W enables rapid heat dissipation into PCB ground plane, critical for maintaining accuracy and safety compliance in Class II medical devices. |
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 (SMA) package; 1.9 mm height; 600 W rating; VBR = 13.3–14.7 V; higher VC = 19.9 V | Requires larger PCB footprint and lacks AOI-compatible side-wettable flanks; not suitable for ultra-thin assemblies | Select when legacy SMA layout exists or when higher VBR margin is needed for 12 V systems with wide tolerance rails |
| SMF12A | SOD-123FL package; 1.1 mm height; 200 W rating; VBR = 12.2–13.5 V; VC = 19.9 V; lower IPPM = 10.1 A | Lower power rating limits use to low-energy ESD-only scenarios; insufficient for IEC 61000-4-5 surges | Select only for cost-sensitive consumer electronics with pure ESD requirements and no lightning/surge exposure |
Compared with SMAJ12A and SMF12A, the 6DFN12A-M3/H delivers superior board-level integration via its 0.88 mm DFN3820A package, tighter VBR tolerance (±5 % vs. ±10 %), lower clamping voltage (16.7 V vs. ≥19.9 V), and AEC-Q101 qualification - making it the preferred choice for next-generation automotive and industrial designs demanding miniaturization and reliability.
Availability
6DFN12A-M3/H is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor nodes, and medical monitoring equipment requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant surge protection.
Supply support for 6DFN12A-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with leadership in power management, signal conditioning, and protection technologies.
The 6DFN12A-M3/H belongs to Vishay's TRANSZORB® family of transient voltage suppressors, engineered specifically for high-reliability, space-constrained surge and ESD protection in automotive, industrial, and medical applications where low profile and AOI compatibility are critical.
FAQ
What is the exact breakdown voltage range for 6DFN12A-M3/H?
The 6DFN12A-M3/H has a guaranteed breakdown voltage (VBR) range of 11.4 V (minimum) to 12.6 V (maximum) at 1.0 mA test current, with a nominal value of 12.0 V - confirmed per Vishay Document #98464, Table on page 2. This ±5 % tolerance ensures predictable turn-on behavior in 12 V system protection circuits.
Does 6DFN12A-M3/H meet automotive qualification standards?
Yes, the "H" suffix in 6DFN12A-M3/H explicitly denotes AEC-Q101 qualification, verified per Vishay's ordering information table (page 3). This certification covers stress testing for temperature cycling, humidity bias, ESD, and mechanical shock - confirming suitability for automotive powertrain, body, and infotainment applications.
What is the thermal resistance from junction to ambient for 6DFN12A-M3/H?
The 6DFN12A-M3/H has a typical junction-to-ambient thermal resistance (RθJA) of 140 °C/W and a maximum of 175 °C/W, measured per JEDEC 51-2A on FR4 PCB with standard 2 oz. copper footprint - data sourced from the Thermal Characteristics table on page 2 of Vishay Document #98464.
How does the DFN3820A package of 6DFN12A-M3/H support automated optical inspection?
The DFN3820A package of 6DFN12A-M3/H features side-wettable flanks - exposed metal on the package edges that form visible, reflective solder fillets during reflow. This enables 100 % AOI detection of solder joint quality without requiring X-ray, directly addressing manufacturing yield and field-reliability requirements stated in the Features section (page 1).
What is the maximum clamping voltage of 6DFN12A-M3/H at its rated peak pulse current?
The 6DFN12A-M3/H clamps to a maximum of 16.7 V at its rated peak pulse current (IPPM) of 35.9 A under 10/1000 μs waveform conditions - specified in the Electrical Characteristics table (page 2) and critical for ensuring downstream ICs (e.g., USB PHYs rated ≤3.6 V abs max) remain within safe operating voltage limits during surge events.
6DFN12A-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):
- 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/H FAQ
1.How can I place an order for 6DFN12A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN12A-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 6DFN12A-M3/H reliable?
The price and inventory of 6DFN12A-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 6DFN12A-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN12A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN12A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN12A-M3/H?
6DFN12A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN12A-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 6DFN12A-M3/H?
For technical support, including 6DFN12A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN12A-M3/H requirements.
6.How does Aetrix verify that 6DFN12A-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN12A-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 6DFN12A-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN12A-M3/H?
All 6DFN12A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN12A-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 6DFN12A-M3/H part is unused and in its original packaging.
Return procedure for 6DFN12A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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