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Vishay General Semiconductor - Diodes Division 6DFN15A-M3/I
- Part No.:
- 6DFN15A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN15A-M3/I.pdf
- Description:
- 600W,15V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:10,150
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Product details
Overview
6DFN15A-M3/I 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 15.0 V nominal breakdown voltage (VBR), 12.8 V stand-off voltage (VWM), 21.2 V maximum clamping voltage (VC) at 5.0 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates from −65 °C to +175 °C junction temperature - deployed in sensor interface protection for industrial IoT edge nodes.
For engineers reviewing the 6DFN15A-M3/I datasheet, 6DFN15A-M3/I pinout, 6DFN15A-M3/I application, or 6DFN15A-M3/I equivalent, this page delivers verified electrical parameters, validated DFN3820A terminal mapping, real-world use cases in automotive sensor modules and medical data acquisition systems, and two confirmed alternative TVS diodes with documented clamping and thermal differences.
Technical Context
This unidirectional TVS uses passivated anisotropic rectifier technology optimized for fast response to transients up to 30 kV IEC 61000-4-2 contact discharge. Its single-diode configuration provides low dynamic impedance during clamping, enabling effective suppression of inductive switching spikes and lightning-induced surges on 12–15 V rail interfaces.
The DFN3820A package delivers 5 °C/W typical junction-to-mount thermal resistance (RθJM) and supports automated optical inspection via side-wettable flanks. With 0.88 mm profile and MSL Level 1 rating (260 °C peak reflow), it meets high-reliability surface-mount requirements for space-constrained PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 14.3 / 15.0 / 15.8 V - ensures reliable conduction onset above normal 12 V system operating range without false triggering |
| VWM | 12.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA, compatible with 12 V logic/sensor supply rails |
| VC @ IPPM | 21.2 V at 5.0 A - limits downstream IC voltage stress during 600 W transient events, protecting 24 V-tolerant receivers |
| PPPM | 600 W (10/1000 μs) - sustains industry-standard surge energy without degradation under repeated transients |
| TJ max | +175 °C - enables operation in under-hood automotive or industrial motor control environments |
| ESD immunity | ±30 kV contact discharge per IEC 61000-4-2 - eliminates need for external ESD staging in USB, CAN, or analog sensor inputs |
Pinout & Package
Package: DFN3820A - 2-terminal, leadless, halogen-free, RoHS-compliant surface-mount package with side-wettable flanks (0.086" × 0.078", 2.18 mm × 1.98 mm footprint, 0.88 mm height). Cathode marked by color band; heatsink (exposed pad) is anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (exposed pad) | Power return path / thermal sink | Electrically connected to PCB ground plane for low-inductance surge current return and enhanced thermal dissipation (RθJM = 5 °C/W) |
| Cathode (top-side marked terminal) | Transient voltage clamp node | Connected to protected line (e.g., sensor output); conducts when VIN exceeds VBR, shunting surge to anode ground |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables 100 % automated optical inspection (AOI) of solder joint integrity without X-ray, reducing post-reflow defect escapes |
| Low-profile DFN3820A | 0.88 mm height allows placement beneath connectors or in stacked module assemblies where Z-height is constrained |
| Passivated anisotropic rectifier | Delivers stable VBR over temperature (αT = 0.076 %/°C) and >1000 surge cycles without parameter drift |
| M3 material grade | Halogen-free, Pb-free, JESD201 Class 2 whisker-resistant terminations ensure long-term reliability in humid or thermally cycled environments |
Applications
| Automotive Cabin Sensors | Industrial PLC Analog Inputs |
|---|---|
Use Scenario: Protecting LIN bus-connected temperature/humidity sensors in vehicle cabin modules against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output and microcontroller ADC input to clamp transients below 21.2 V while maintaining 12.8 V DC integrity. Use Value: Prevents ADC saturation and firmware lockup during 12 V system voltage excursions, meeting ISO 7637-2 Pulse 5a immunity requirements. | Use Scenario: Shielding 4–20 mA current loop receiver circuits in programmable logic controllers from field wiring surge coupling. IC Role / Device Role / Timing Role: Single-diode TVS connected across input terminals to divert induced surges before reaching precision op-amp front-end. Use Value: Maintains <1.0 μA leakage at 12.8 V, avoiding offset error in µA-level current measurement while surviving 600 W transients. |
| Medical Patient Monitoring Ports | Telecom Base Station Control Lines |
Use Scenario: Safeguarding ECG electrode interface lines in portable monitors against electrostatic discharge during patient handling. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF at VWM) placed directly at connector to suppress 30 kV ESD without distorting biopotential signals. Use Value: Achieves IEC 61000-4-2 Level 4 compliance (±30 kV contact) while adding <0.5 mV RMS noise to sub-mV physiological waveforms. | Use Scenario: Protecting RS-485 control lines linking baseband units to remote radio heads in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 12.8 V) installed on differential pair to clamp common-mode surges without disrupting 12 V bias networks. Use Value: Clamps to 21.2 V within 1 ns, preserving signal integrity across 10 Mbps links while enduring repeated lightning-induced transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/57T | DO-214AC package (higher profile, 2.3 mm height), 24.4 V clamping at 5.0 A, RθJA = 40 °C/W | Less suitable for ultra-thin designs; requires larger keep-out area and lacks AOI-compatible flanks | Select when board-level rework accessibility outweighs Z-height constraints and AOI capability is not required |
| SMF15A | SOD-123FL package (1.7 mm × 1.3 mm), 23.2 V clamping at 5.0 A, 150 °C max junction temperature | Limited thermal endurance in sustained surge environments; lower TJ rating reduces margin in hot enclosures | Prefer for cost-sensitive consumer applications where ambient temperature stays below 85 °C and single-event surge exposure is infrequent |
Compared with SMAJ15A-E3/57T and SMF15A, the 6DFN15A-M3/I offers superior thermal performance (RθJM = 5 °C/W), tighter clamping (21.2 V vs. ≥23.2 V), and AOI-ready construction - making it optimal for high-density, high-reliability industrial and automotive PCBs where long-term surge resilience and automated manufacturing yield are critical.
Availability
6DFN15A-M3/I is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial PLC analog I/O modules, and medical patient monitoring equipment requiring stable component supply and full traceability through production lifecycles.
Supply support for 6DFN15A-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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with leadership in power management, signal conditioning, and circuit protection technologies.
The 6DFN15A-M3/I belongs to Vishay's TRANSZORB® DFN TVS family, engineered specifically for high-density, high-reliability transient suppression in automotive, industrial, and medical systems where low profile, thermal efficiency, and process compatibility are mandatory.
FAQ
What is the exact breakdown voltage tolerance for 6DFN15A-M3/I?
The 6DFN15A-M3/I has a ±5 % breakdown voltage tolerance, with minimum VBR of 14.3 V and maximum of 15.8 V at 1.0 mA test current. This tight tolerance ensures predictable clamping behavior across production lots and supports precise overvoltage margin design in 12 V systems where the 6DFN15A-M3/I is commonly applied.
Does 6DFN15A-M3/I support automatic optical inspection (AOI)?
Yes, the 6DFN15A-M3/I uses a DFN3820A package with side-wettable flanks explicitly designed for AOI compatibility. Its matte tin-plated terminals and controlled solder fillet geometry allow high-confidence solder joint verification without X-ray, a key requirement for automotive and industrial assembly lines using the 6DFN15A-M3/I.
What is the maximum clamping voltage of 6DFN15A-M3/I at its rated peak pulse current?
The 6DFN15A-M3/I clamps to a maximum of 21.2 V at 5.0 A peak pulse current (10/1000 µs waveform), as specified in the Vishay datasheet revision 10-Nov-2023. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream ICs remain within absolute maximum ratings when the 6DFN15A-M3/I is deployed.
Is 6DFN15A-M3/I compliant with RoHS and halogen-free standards?
Yes, the "M3" suffix in 6DFN15A-M3/I confirms halogen-free, RoHS-compliant, and Pb-free construction per Vishay's material categorization standard (www.vishay.com/doc?99912). The device also passes JESD201 Class 2 whisker testing, making it suitable for long-life industrial and medical applications where the 6DFN15A-M3/I is specified.
What is the thermal resistance from junction to mount (RθJM) for 6DFN15A-M3/I?
The 6DFN15A-M3/I has a typical junction-to-mount thermal resistance (RθJM) of 5 °C/W, measured per JEDEC® 51-14 using the Transient Dual Interface Method. This low value enables efficient heat transfer from the die to the PCB copper pour, supporting reliable operation under repetitive surge conditions - a key thermal advantage of the 6DFN15A-M3/I over larger-package alternatives.
6DFN15A-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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28.3A
- 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
6DFN15A-M3/I FAQ
1.How can I place an order for 6DFN15A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN15A-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 6DFN15A-M3/I reliable?
The price and inventory of 6DFN15A-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 6DFN15A-M3/I is usually 5 days.
3.What payment methods are accepted for 6DFN15A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN15A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN15A-M3/I?
6DFN15A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN15A-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 6DFN15A-M3/I?
For technical support, including 6DFN15A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN15A-M3/I requirements.
6.How does Aetrix verify that 6DFN15A-M3/I is sourced from the original manufacturer or authorized distributors?
All 6DFN15A-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 6DFN15A-M3/I meets industry standards.
7.What is the process for return or replacement of 6DFN15A-M3/I?
All 6DFN15A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN15A-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 6DFN15A-M3/I part is unused and in its original packaging.
Return procedure for 6DFN15A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN15A-M3/I Tags
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