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Vishay 6DFN12CA-M3/H
- Part No.:
- 6DFN12CA-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN12CA-M3/H.pdf
- Description:
- 600W,12V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,485
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Product details
Overview
6DFN12CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, featuring 12 V nominal breakdown voltage (VBR = 11.4–12.6 V), 10.2 V stand-off voltage (VWM), and 600 W peak pulse power (10/1000 μs). It delivers 35.9 A peak pulse current and clamps to 16.7 V at rated surge, protecting sensitive ICs and MOSFETs in compact consumer and industrial electronics.
For engineers reviewing the 6DFN12CA-M3/H datasheet, 6DFN12CA-M3/H pinout, 6DFN12CA-M3/H application, or 6DFN12CA-M3/H equivalent, key selection criteria include its MSL Level 1 rating, side-wettable flanks for AOI compatibility, bidirectional clamping behavior, low-profile 0.88 mm height, and AEC-Q101 qualification indicated by the "H" suffix in the ordering code.
Technical Context
This device employs passivated anisotropic rectifier technology to achieve stable bidirectional clamping with low leakage (<2.0 μA at VWM) and tight ±5% VBR tolerance (CA grade). Its junction-to-mount thermal resistance (RθJM) is as low as 5 °C/W, enabling effective heat transfer to PCB copper under surge conditions.
The DFN3820A package supports automated placement and optical inspection via side-wettable flanks, while maintaining compatibility with SMP (DO-220AA) footprint standards. It operates across –65 °C to +175 °C junction temperature range and meets IEC 61000-4-2 ±30 kV ESD immunity (contact/air discharge).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V - Ensures reliable turn-on above 10.2 V system operating voltage without false triggering |
| VWM | 10.2 V - Maximum continuous reverse voltage before significant leakage begins; matches 12 V rail systems |
| VC @ IPPM | 16.7 V - Clamped voltage during 35.9 A surge; limits downstream stress to safe levels for 12 V logic/MOSFET gates |
| PPPM (10/1000 μs) | 600 W - Sustains high-energy transients from inductive switching or lightning-induced surges |
| IPPM | 35.9 A - Peak surge current capability derived from 600 W / 16.7 V; validated per Fig. 3 waveform |
| Junction Temp Range | –65 °C to +175 °C - Supports operation in harsh automotive and industrial environments |
| ESD Rating | ±30 kV (IEC 61000-4-2) - Protects against human-body-model and contact-discharge events |
Pinout & Package
Package: DFN3820A - 2-terminal, leadless, bidirectional device with no polarity marking; dimensions 3.95 mm × 2.18 mm × 0.88 mm (L × W × H); side-wettable flanks enable AOI and solder-joint reliability verification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Common transient path | Both terminals function identically; no cathode band; symmetric clamping in either direction |
| Exposed Pad (bottom) | Thermal & mechanical anchor | Not electrically connected; enhances thermal dissipation to PCB ground plane and mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| Side-wettable flanks | Supports automated optical inspection of solder joints-critical for high-reliability manufacturing |
| MSL Level 1 (260 °C peak) | Eliminates pre-bake requirement before reflow, reducing process complexity and moisture-related defects |
| AEC-Q101 qualified ("H" suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
| Halogen-free, RoHS-compliant (M3) | Meets global environmental compliance mandates without compromising surge performance or thermal robustness |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp fast-rising transients before they reach signal conditioning circuitry. Use Value: Withstands 35.9 A surges at 16.7 V clamping, preserving signal integrity and preventing latch-up in 12 V automotive domains. |
Use Scenario: Safeguarding digital input/output channels on programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) shunt protector across 24 V DC I/O lines to suppress repetitive switching spikes. Use Value: 600 W peak power rating handles repeated 10/1000 μs surges common in factory automation, extending field-replaceable module lifetime. |
| Consumer USB Port Protection | Medical Imaging Signal Line Guarding |
|
Use Scenario: Shielding USB 2.0 data lines (D+/D−) and VBUS from ESD and hot-plug transients in portable devices. IC Role / Device Role / Timing Role: Compact DFN3820A device placed adjacent to USB connector to provide sub-nanosecond response to ±30 kV ESD events. Use Value: 0.88 mm profile enables co-location with micro-USB connectors; low leakage (<2 μA) avoids signal attenuation or bias shift. |
Use Scenario: Protecting low-noise analog front-ends in MRI or ultrasound equipment from EMI coupling and electrostatic discharge. IC Role / Device Role / Timing Role: Bidirectional clamping element on differential sensor interfaces (e.g., LVDS, RS-485) where polarity reversal may occur during maintenance. Use Value: Tight ±5% VBR tolerance ensures predictable clamping threshold across production lots, critical for diagnostic accuracy. |
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-E3/57T | DO-214AC (SMA) package; 12 V unidirectional; 400 W PPPM; higher VC = 19.9 V | Requires external polarity management; less suitable for AC or floating lines | Select when board space allows larger package and unidirectional protection suffices |
| SMCJ12CA | DO-214AB (SMC) package; 12 V bidirectional; 1500 W PPPM; VC = 19.9 V; 7.2 mm × 6.2 mm footprint | Higher power handling but 3× larger area; not AOI-compatible due to lack of side-wettable flanks | Choose for legacy designs needing higher surge margin where DFN3820A's size or AOI is not required |
Compared with SMAJ12A-E3/57T and SMCJ12CA, the 6DFN12CA-M3/H offers superior board-area efficiency, automated optical inspectability, and tighter clamping (16.7 V vs. ≥19.9 V), making it optimal for space-constrained, high-volume automotive and industrial modules requiring AEC-Q101 validation.
Availability
6DFN12CA-M3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and medical imaging interface boards requiring stable component supply, AEC-Q101 qualification, and compact TVS protection.
Supply support for 6DFN12CA-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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, thermal performance, and application-specific optimization.
The 6DFN12CA-M3/H belongs to Vishay's TRANSZORB® DFN family, engineered for high-density, AOI-ready transient suppression in automotive, industrial, and medical systems where footprint, thermal management, and process compatibility are critical.
FAQ
What does the "H" suffix in 6DFN12CA-M3/H indicate?
The "H" suffix in 6DFN12CA-M3/H denotes AEC-Q101 qualification, confirming that the 6DFN12CA-M3/H has passed rigorous automotive-grade stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD robustness per JESD22-A114. This makes the 6DFN12CA-M3/H suitable for under-hood and chassis-mounted applications where reliability under thermal and mechanical stress is mandatory.
Is the 6DFN12CA-M3/H unidirectional or bidirectional?
The 6DFN12CA-M3/H is explicitly bidirectional, as confirmed by its "CA" designation (C = ±5% tolerance, A = bidirectional) and absence of cathode marking. Its symmetrical clamping behavior-identical VBR, VC, and IPPM in both polarities-makes the 6DFN12CA-M3/H ideal for protecting AC-coupled, floating, or reversibly connected signal paths without polarity constraints.
What is the maximum clamping voltage of the 6DFN12CA-M3/H at rated surge current?
The 6DFN12CA-M3/H clamps to a maximum of 16.7 V at its rated peak pulse current of 35.9 A (10/1000 μs waveform), as specified in the Electrical Characteristics table on page 2 of Vishay document 98490. This clamping voltage is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events.
Does the 6DFN12CA-M3/H require special PCB layout considerations?
Yes-the 6DFN12CA-M3/H requires adherence to the DFN3820A mounting pad layout shown in Figure 5 (page 5 of document 98490), including thermal pad exposure and solder mask defined lands. Its side-wettable flanks demand precise stencil aperture design and reflow profiling to ensure reliable solder fillet formation for AOI verification-critical for achieving full benefit of the 6DFN12CA-M3/H's manufacturability features.
How does the 6DFN12CA-M3/H compare to standard SMA or SMC package TVS diodes?
The 6DFN12CA-M3/H provides identical 12 V protection functionality but in a 3.95 mm × 2.18 mm DFN3820A package-~65% smaller than SMA and ~85% smaller than SMC. Unlike those legacy packages, the 6DFN12CA-M3/H features side-wettable flanks for AOI, MSL Level 1 reflow compatibility, and lower clamping voltage (16.7 V vs. ≥19.9 V), delivering higher protection fidelity in modern high-density layouts.
6DFN12CA-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):
- 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
6DFN12CA-M3/H FAQ
1.How can I place an order for 6DFN12CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN12CA-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 6DFN12CA-M3/H reliable?
The price and inventory of 6DFN12CA-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 6DFN12CA-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN12CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN12CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN12CA-M3/H?
6DFN12CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN12CA-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 6DFN12CA-M3/H?
For technical support, including 6DFN12CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN12CA-M3/H requirements.
6.How does Aetrix verify that 6DFN12CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN12CA-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 6DFN12CA-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN12CA-M3/H?
All 6DFN12CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN12CA-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 6DFN12CA-M3/H part is unused and in its original packaging.
Return procedure for 6DFN12CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN12CA-M3/H Tags
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