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Vishay 6DFN22A-M3/H
- Part No.:
- 6DFN22A-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN22A-M3/H.pdf
- Description:
- 600W,22V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,226
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Product details
Overview
6DFN22A-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 sensitive signal lines. It features 22 V nominal breakdown voltage (VBR), 18.8 V stand-off voltage (VWM), 30.6 V clamping voltage at 19.6 A peak pulse current, 600 W peak pulse power (10/1000 μs), and operates from –65 °C to +175 °C. It is used to protect MOSFET gates, sensor interfaces, and I/O lines in industrial and automotive control modules.
For engineers reviewing the 6DFN22A-M3/H datasheet, 6DFN22A-M3/H pinout, 6DFN22A-M3/H application, or 6DFN22A-M3/H equivalent, key selection criteria include unidirectional clamping performance, low-profile DFN3820A footprint with side-wettable flanks for AOI, 30 kV IEC 61000-4-2 ESD immunity, and compatibility with SMP (DO-220AA) mounting layouts.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response to transients up to 19.6 A (10/1000 μs). Its unidirectional configuration provides precise reverse-biased clamping with minimal leakage (<1 μA at VWM) and a temperature coefficient of +0.084 %/°C for VBR.
The DFN3820A package delivers low thermal resistance (RθJM = 5 °C/W typical) and supports high-density PCB layouts. It meets MSL Level 1 per J-STD-020, with 260 °C lead-free reflow compatibility and halogen-free, RoHS-compliant construction (M3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - Ensures reliable turn-on above system operating voltage while avoiding false triggering |
| VWM | 18.8 V - Maximum continuous reverse voltage before leakage exceeds 1 μA; matches 18–20 V logic/sensor supply rails |
| VC @ IPPM | 30.6 V - Clamped voltage during 19.6 A surge; limits stress on downstream 3.3 V or 5 V ICs |
| PPPM | 600 W (10/1000 μs) - Withstands lightning-induced surges per IEC 61000-4-5 Level 3 |
| Junction Temp Range | –65 °C to +175 °C - Enables deployment in under-hood automotive and industrial motor drive environments |
| ESD Immunity | ±30 kV contact/air (IEC 61000-4-2) - Protects human-touch interfaces without external shielding |
Pinout & Package
Package: DFN3820A - 2-terminal, surface-mount, leadless package measuring 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), with side-wettable flanks for automated optical inspection and solder-joint reliability verification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal (heatsink side) | Connected to ground or low-impedance return path; serves as thermal conduction plane |
| Cathode | Negative terminal (marked with color band) | Connected to protected line; conducts surge current to ground when VWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable DFN3820A | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing post-reflow defect escape |
| MSL Level 1 rating | Allows unlimited floor life and single-pass 260 °C lead-free reflow without baking |
| Low profile (0.88 mm height) | Supports ultra-thin designs in space-constrained IoT sensors and portable medical devices |
| AEC-Q101 qualified (H suffix) | Validated for automotive powertrain and body electronics per stress test requirements |
| Halogen-free, RoHS-compliant (M3) | Meets global environmental compliance mandates and enables green manufacturing |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp surges before they reach the transceiver input stage. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers by limiting voltage to ≤30.6 V during 19.6 A transients. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Standoff protector on dry-contact or optocoupler input side, absorbing energy from relay coil flyback and cable coupling. Use Value: Maintains functional safety integrity by ensuring <1 μA leakage at 18.8 V, preventing false triggering of 24 V logic thresholds. |
| Medical Imaging Signal Chain | Consumer USB-C Port ESD Protection |
Use Scenario: Shielding low-noise analog front-ends (e.g., ADC reference paths, photodiode amplifiers) in ultrasound and MRI subsystems from ESD and board-level noise. IC Role / Device Role / Timing Role: Localized TVS adjacent to connector or IC pin, minimizing trace inductance to preserve clamping speed. Use Value: Achieves 30 kV IEC 61000-4-2 immunity without degrading signal integrity due to low junction capacitance (<100 pF at 0 V). |
Use Scenario: Adding secondary ESD protection on USB-C CC, SBU, and VBUS lines beyond integrated port controller protection. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp on VBUS line to absorb hot-swap transients and contact ESD. Use Value: Complements internal protection with 600 W surge handling, enabling compliance with USB-IF ESD stress tests at ±15 kV air discharge. |
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; higher RθJA (160 °C/W); 30.6 V VC at 19.5 A; same VBR range | Larger footprint (4.5 × 2.7 mm); unsuitable for ultra-dense layouts; no side-wettable flanks | Select when legacy through-hole or larger SMT assembly is acceptable and AOI is not required |
| SMCJ22A | DO-214AB package; 1500 W PPPM; 30.6 V VC at 49.3 A; higher leakage (5 μA max at VWM) | Used for higher-energy surges (e.g., AC mains coupling); incompatible with fine-pitch DFN routing | Select only when >600 W surge margin is mandatory and board area permits 7.1 × 6.2 mm footprint |
Compared with SMAJ22A and SMCJ22A, the 6DFN22A-M3/H offers superior board-space efficiency, AOI-ready terminations, and lower thermal resistance to mount-making it optimal for next-generation compact, high-reliability industrial and automotive modules where layout density and process validation are critical.
Availability
6DFN22A-M3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and medical imaging signal chain safeguarding requiring stable component supply across multi-year production cycles.
Supply support for 6DFN22A-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial, automotive, and computing applications.
The 6DFN22A-M3/H belongs to Vishay's TRANSZORB® DFN family-engineered specifically for high-density, AOI-compatible transient suppression in space-constrained, high-reliability systems where traditional SMB/SMA packages cannot meet layout or process requirements.
FAQ
What is the polarity configuration of the 6DFN22A-M3/H?
The 6DFN22A-M3/H is a unidirectional TVS diode, with the cathode marked by a color band on the package. Its anode connects to ground or the low-side reference, and the cathode connects to the protected line. This configuration allows it to clamp only negative-going transients relative to ground, making it ideal for DC-biased signal lines like 24 V industrial inputs or 5 V sensor outputs where reverse voltage blocking is required.
Does the 6DFN22A-M3/H meet AEC-Q101 qualification?
Yes, the "H" suffix in 6DFN22A-M3/H indicates full AEC-Q101 qualification per the Vishay specification document 98464. It has passed stress tests including high-temperature operating life, temperature cycling, and ESD, confirming suitability for automotive powertrain, body electronics, and ADAS sensor modules where reliability under thermal and mechanical stress is mandatory.
What is the maximum clamping voltage of the 6DFN22A-M3/H under surge conditions?
The 6DFN22A-M3/H exhibits a maximum clamping voltage (VC) of 30.6 V when subjected to its rated peak pulse current of 19.6 A (10/1000 μs waveform). This value is guaranteed across temperature and ensures protected ICs-such as 3.3 V microcontrollers or 5 V transceivers-remain within safe absolute maximum ratings during transient events.
Can the 6DFN22A-M3/H be used in bidirectional protection applications?
No, the 6DFN22A-M3/H is strictly unidirectional and not rated for bidirectional operation. For AC-coupled or dual-polarity signal lines (e.g., RS-485, Ethernet PHY), a dedicated bidirectional TVS such as the 6DFN22CA-M3/H-or a pair of unidirectional devices in series-opposed configuration-must be used instead. Using the 6DFN22A-M3/H in reverse-biased AC applications risks catastrophic failure.
What does the "M3" suffix signify in 6DFN22A-M3/H?
The "M3" suffix in 6DFN22A-M3/H denotes halogen-free, RoHS-compliant construction with matte tin-plated terminals that meet J-STD-002 and JESD 22-B102 solderability standards. It also satisfies JESD 201 Class 2 whisker resistance, ensuring long-term reliability in high-vibration or high-humidity environments common in transportation and industrial equipment.
6DFN22A-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):
- 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/H FAQ
1.How can I place an order for 6DFN22A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN22A-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 6DFN22A-M3/H reliable?
The price and inventory of 6DFN22A-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 6DFN22A-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN22A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN22A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN22A-M3/H?
6DFN22A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN22A-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 6DFN22A-M3/H?
For technical support, including 6DFN22A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN22A-M3/H requirements.
6.How does Aetrix verify that 6DFN22A-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN22A-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 6DFN22A-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN22A-M3/H?
All 6DFN22A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN22A-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 6DFN22A-M3/H part is unused and in its original packaging.
Return procedure for 6DFN22A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN22A-M3/H Tags
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