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Vishay General Semiconductor - Diodes Division 6DFN22A-M3/I
- Part No.:
- 6DFN22A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN22A-M3/I.pdf
- Description:
- 600W,22V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:13,870
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Product details
Overview
6DFN22A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, with 22.0 V nominal breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), 30.6 V clamping voltage at 19.6 A peak pulse current, and 600 W peak pulse power rating (10/1000 μs). It protects MOSFETs and ICs against lightning-induced transients in industrial sensor signal lines.
For engineers reviewing the 6DFN22A-M3/I datasheet, 6DFN22A-M3/I pinout, 6DFN22A-M3/I application, or 6DFN22A-M3/I equivalent, key selection criteria include unidirectional clamping performance, DFN3820A side-wettable flanks for AOI compatibility, 175 °C max junction temperature, MSL Level 1 rating, and halogen-free RoHS-compliant construction.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver precise unidirectional clamping with low leakage (<1.0 μA at VWM) and stable VBR temperature coefficient (0.084 %/°C). Its DFN3820A footprint enables high-density PCB layouts while maintaining thermal resistance of 140–175 °C/W (junction-to-ambient) on FR4.
The device operates across -65 °C to +175 °C junction temperature range and meets IEC 61000-4-2 ESD immunity up to ±30 kV (contact/air discharge). Its 0.88 mm typical height and matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - ensures reliable turn-on above circuit operating voltage with ±5 % tolerance |
| VWM | 18.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 30.6 V - clamping voltage during 19.6 A surge, limiting downstream voltage stress |
| PPPM | 600 W (10/1000 μs) - energy-handling capacity for lightning and inductive-switching transients |
| Junction temp. range | -65 °C to +175 °C - supports operation in harsh industrial and automotive under-hood environments |
| Package | DFN3820A - 3.95 mm × 2.18 mm × 0.88 mm low-profile leadless package with side-wettable flanks |
| ESD rating | ±30 kV per IEC 61000-4-2 - robust protection against human-body-model electrostatic discharge |
Pinout & Package
DFN3820A package: 2-terminal surface-mount device with cathode marked by color band; anode connected to exposed heatsink pad. Dimensions: 3.95 mm × 2.18 mm × 0.88 mm (L × W × H); terminal pitch: 0.66 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (heatsink pad) | Common reference node and thermal path | Exposed copper pad provides low-impedance thermal conduction to PCB ground plane |
| Cathode (marked side) | Transient current sink | Connected to protected line; conducts surge current to anode when VBR exceeded |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking |
| Halogen-free, RoHS-compliant | M3 suffix confirms compliance with environmental regulations and JEDEC whisker Class 2 |
| Low profile (0.88 mm) | Reduces board stack height in space-constrained consumer and medical devices |
| Optimized junction passivation | Ensures stable leakage (<1.0 μA) and clamping performance over full temperature range |
Applications
| Industrial Sensor Signal Protection | Automotive Body Control Module Inputs |
|---|---|
Use Scenario: Protecting 24 V analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive kickback in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before reaching ADC input or op-amp buffer. Use Value: 30.6 V clamping voltage ensures downstream 3.3 V or 5 V signal conditioning ICs remain within absolute maximum ratings during 600 W surges. |
Use Scenario: Safeguarding LIN bus inputs and discrete switch sense lines in BCMs exposed to battery transients and relay switching noise. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing fast-rising spikes (≤10 ns rise time) while maintaining <1.0 μA leakage at 18.8 V. Use Value: 175 °C max junction temperature and MSL Level 1 enable direct placement near hot engine-bay components without derating or special handling. |
| Medical Patient Monitoring Interface | Telecom Power Supply Input Stage |
Use Scenario: Shielding isolated analog front-ends (e.g., ECG, SpO₂) from ESD events and coupling noise in portable diagnostic equipment. IC Role / Device Role / Timing Role: First-line transient suppressor on patient-connected signal paths, meeting IEC 61000-4-2 ±30 kV contact discharge requirement. Use Value: Side-wettable flanks allow 100 % AOI verification of solder joint integrity-critical for safety-critical medical BOM traceability. |
Use Scenario: Secondary-level surge suppression on 48 V telecom DC input rails upstream of DC/DC converters and PMICs. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing residual transients after primary MOV/GDT stage, with 600 W capability matching GR-1089-CORE requirements. Use Value: DFN3820A footprint enables dense placement adjacent to connectors while delivering 19.6 A peak pulse current at 30.6 V clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | DO-214AC package (larger, 4.5 mm × 2.7 mm), higher RθJA (190 °C/W), same VBR/VC specs | Less suitable for ultra-thin or high-density layouts; requires larger PCB area and manual AOI workaround | Select SMAJ22A only if legacy DO-214AC footprint is fixed and thermal budget allows higher junction rise |
| SMCJ22A | DO-214AB package (7.1 mm × 6.2 mm), 1500 W PPPM, higher VC (35.5 V), lower leakage (0.5 μA) | Better for high-energy surges but over-specified for 600 W needs; incompatible with compact DFN layout | Choose SMCJ22A only when system-level surge testing exceeds IEC 61000-4-5 Level 4 (4 kV/2 Ω) |
Compared with SMAJ22A and SMCJ22A, the 6DFN22A-M3/I delivers identical clamping performance in a 63 % smaller footprint with AOI-ready side-wettable flanks and superior thermal resistance to mount (RθJM = 5–6.5 °C/W), making it optimal for next-generation space- and reliability-constrained designs.
Availability
6DFN22A-M3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and medical patient monitoring equipment requiring stable component supply and long-term lifecycle support.
Supply support for 6DFN22A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 6DFNxxA series was engineered specifically for high-density, AOI-compatible transient suppression in modern industrial and automotive electronics, prioritizing low profile, thermal performance, and process compatibility over legacy through-hole alternatives.
FAQ
What is the exact breakdown voltage range for 6DFN22A-M3/I?
The 6DFN22A-M3/I has a guaranteed breakdown voltage range of 20.9 V (minimum) to 23.1 V (maximum) at 1.0 mA test current, with 22.0 V nominal value. This ±5 % tolerance ensures consistent turn-on behavior across production lots and temperature extremes, and is verified per ANSI/IEEE C62.35 standards in the official Vishay datasheet (Doc #98464).
Does 6DFN22A-M3/I support automatic optical inspection (AOI)?
Yes, the 6DFN22A-M3/I features side-wettable flanks in its DFN3820A package, enabling full solder-joint inspection using standard AOI systems without requiring X-ray. This design eliminates manual visual checks and improves first-pass yield in high-volume SMT lines, as confirmed in Vishay's mechanical drawings and packaging notes.
What is the maximum clamping voltage of 6DFN22A-M3/I under surge conditions?
The 6DFN22A-M3/I clamps to a maximum of 30.6 V when subjected to its rated 19.6 A peak pulse current (10/1000 μs waveform). This value is measured and guaranteed per the datasheet's electrical characteristics table and defines the upper voltage limit imposed on protected circuitry during transient events.
Is 6DFN22A-M3/I compliant with RoHS and halogen-free requirements?
Yes, the "M3" suffix in 6DFN22A-M3/I explicitly denotes halogen-free, RoHS-compliant construction with Pb-free matte tin plating. It meets JESD 201 Class 2 whisker resistance and complies with Vishay's material categorization standard (Doc #99912), making it suitable for environmentally regulated markets.
What is the thermal resistance specification for 6DFN22A-M3/I?
The 6DFN22A-M3/I has a typical junction-to-mount thermal resistance (RθJM) of 5 °C/W and a maximum junction-to-ambient resistance (RθJA) of 175 °C/W when mounted on a standard FR4 PCB per JEDEC 51-2A. These values are critical for calculating safe power derating above 25 °C ambient, as shown in Figure 2 of the datasheet.
6DFN22A-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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- 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
6DFN22A-M3/I FAQ
1.How can I place an order for 6DFN22A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN22A-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 6DFN22A-M3/I reliable?
The price and inventory of 6DFN22A-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 6DFN22A-M3/I is usually 5 days.
3.What payment methods are accepted for 6DFN22A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN22A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN22A-M3/I?
6DFN22A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN22A-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 6DFN22A-M3/I?
For technical support, including 6DFN22A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN22A-M3/I requirements.
6.How does Aetrix verify that 6DFN22A-M3/I is sourced from the original manufacturer or authorized distributors?
All 6DFN22A-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 6DFN22A-M3/I meets industry standards.
7.What is the process for return or replacement of 6DFN22A-M3/I?
All 6DFN22A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN22A-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 6DFN22A-M3/I part is unused and in its original packaging.
Return procedure for 6DFN22A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN22A-M3/I Tags
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