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Vishay 6DFN22CA-M3/H
- Part No.:
- 6DFN22CA-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN22CA-M3/H.pdf
- Description:
- 600W,22V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,142
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Product details
Overview
6DFN22CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, with 22 V nominal breakdown voltage (VBR = 20.9–23.1 V), 18.8 V stand-off voltage (VWM), and 600 W peak pulse power (10/1000 μs). It protects signal lines in sensor units and MOSFET gates against lightning-induced transients and inductive switching surges.
For engineers reviewing the 6DFN22CA-M3/H datasheet, 6DFN22CA-M3/H pinout, 6DFN22CA-M3/H application, or 6DFN22CA-M3/H equivalent, key selection criteria include clamping voltage (VC = 30.6 V at IPPM), low-profile DFN3820A footprint, MSL Level 1 reflow compatibility, and AEC-Q101 qualification indicated by the "H" suffix.
Technical Context
This device implements an anisotropic rectifier structure with junction passivation optimized for bidirectional ESD and surge suppression. Its single-element configuration delivers symmetrical clamping in both polarities without cathode marking, enabling simplified PCB layout in differential or AC-coupled signal paths.
Designed for automated optical inspection (AOI) via side-wettable flanks, the DFN3820A package supports high-yield SMT assembly. Thermal performance is characterized by RθJA = 175 °C/W (max) and RθJM = 6.5 °C/W (max), supporting operation up to TJ = 175 °C under derated conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 20.9 / 22.0 / 23.1 V - ensures reliable conduction onset above 18.8 V operating voltage while maintaining margin against false triggering |
| VWM | 18.8 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA, defining safe operating window for protected circuitry |
| VC @ IPPM | 30.6 V - clamped voltage during 19.6 A 10/1000 μs surge, limiting stress on downstream ICs or MOSFETs |
| PPPM | 600 W - peak transient energy handling capacity per JEDEC-standard waveform, enabling robust protection in industrial environments |
| TJ max | +175 °C - extended junction temperature rating supports use in under-hood automotive or high-ambient industrial applications |
| ESD immunity | ±30 kV contact/air (IEC 61000-4-2) - meets stringent system-level ESD requirements without external shielding |
| Package | DFN3820A - 3.95 mm × 2.18 mm × 0.88 mm low-profile leadless package with side-wettable flanks for AOI and IPC-compliant reflow |
Pinout & Package
DFN3820A is a 2-terminal bidirectional device with no polarity marking. The package features two coplanar terminals on opposite long edges, designed for symmetric current flow in either direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no cathode band required |
| Terminal 2 | Anode/Cathode (bidirectional) | Complementary terminal completing symmetrical clamping path; identical electrical role to Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or differential buses without polarity constraints |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder joints, improving manufacturing yield and field reliability |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC standard |
| Halogen-free & RoHS | M3 suffix confirms halogen-free molding compound, Pb-free matte tin terminations, and JESD201 Class 2 whisker resistance |
| Low profile (0.88 mm) | Reduces board height in space-constrained modules such as portable medical sensors or slim telecom interfaces |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp transients before they reach sensitive analog front-ends. Use Value: Clamps 19.6 A surges to ≤30.6 V, preserving signal integrity and preventing latch-up in 3.3 V/5 V microcontrollers interfacing with sensors. | Use Scenario: Safeguarding digital input/output channels on programmable logic controller (PLC) modules exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff-connected TVS on each I/O line to absorb repetitive 600 W surges induced by inductive switching without degradation. Use Value: Maintains <1.0 μA leakage at 18.8 V, ensuring clean logic thresholds while surviving >1000 surges per MIL-STD-883H Method 3015.8. |
| Medical Wearable ESD Guard | Telecom Interface Surge Suppression |
Use Scenario: Shielding biopotential electrodes and low-noise amplifier inputs in ECG/EEG wearables from human-body ESD events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 100–200 pF typical) placed at connector interface to shunt 30 kV contact discharge away from analog signal chain. Use Value: Delivers ±30 kV IEC 61000-4-2 protection without adding measurable noise or bandwidth limitation to sub-1 kHz physiological signals. | Use Scenario: Protecting Ethernet PHY or RS-485 transceiver pins in base station remote radio units subjected to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Primary surge limiter mounted adjacent to connector, clamping common-mode transients before they couple into differential data lanes. Use Value: Limits peak voltage to 30.6 V during 10/1000 μs surges, keeping transceiver VCC rails within safe operating area and avoiding reset or damage. |
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-E3/57T (Vishay) | DO-214AC package; higher RθJA (150 °C/W); same VBR/VC but larger footprint (4.5 × 2.7 mm) | Less suitable for ultra-thin designs; better thermal dissipation on large copper pours | Select when board space allows larger package and higher ambient temperatures require lower thermal resistance |
| TPSMF22A (STMicroelectronics) | DFN2510-10 package (2.5 × 1.0 mm); lower PPPM (400 W); VC = 35.5 V at lower IPPM | Lower surge rating limits use in high-energy industrial environments | Select only for consumer-grade applications where 400 W surge capability suffices and footprint reduction is critical |
Compared with SMAJ22A-E3/57T and TPSMF22A, the 6DFN22CA-M3/H provides superior volumetric efficiency (3.95 × 2.18 mm vs. 4.5 × 2.7 mm or 2.5 × 1.0 mm), guaranteed AEC-Q101 qualification, and higher 600 W surge rating-making it optimal for space-constrained, high-reliability automotive and industrial designs.
Availability
6DFN22CA-M3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O protection, and medical wearable ESD guard applications requiring stable component supply and AEC-Q101 compliance.
Supply support for 6DFN22CA-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and miniaturization.
The 6DFNxxCA series was engineered specifically for high-density, high-reliability transient suppression in automotive, industrial, and medical systems-leveraging DFN packaging and junction passivation to deliver robust surge immunity in minimal board area.
FAQ
What is the clamping voltage of the 6DFN22CA-M3/H under a 10/1000 μs surge?
The 6DFN22CA-M3/H has a maximum clamping voltage (VC) of 30.6 V when subjected to its rated peak pulse current (IPPM = 19.6 A) using the standard 10/1000 μs waveform. This value is measured per Figure 3 in Vishay document 98490 and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the 6DFN22CA-M3/H suitable for automotive applications?
Yes, the 6DFN22CA-M3/H is AEC-Q101 qualified, as confirmed by the "H" suffix in its ordering code. It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias, and ESD-to meet automotive reliability requirements for under-hood and body-control module applications.
Does the 6DFN22CA-M3/H have polarity markings?
No, the 6DFN22CA-M3/H is a bidirectional device with no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation across protected lines, simplifying placement and reducing BOM complexity in differential or AC signal paths.
What is the thermal resistance of the 6DFN22CA-M3/H?
The 6DFN22CA-M3/H has a maximum junction-to-ambient thermal resistance (RθJA) of 175 °C/W and a maximum junction-to-mount thermal resistance (RθJM) of 6.5 °C/W, per JEDEC 51-2A and 51-14 test methods. These values assume mounting on a standard FR4 PCB with specified pad layout per the DFN3820A outline drawing.
How does the M3 suffix affect the 6DFN22CA-M3/H?
The M3 suffix indicates halogen-free, RoHS-compliant construction with matte tin-plated terminations that meet JESD201 Class 2 whisker resistance and solderability per J-STD-002 and JESD22-B102. It also confirms industrial-grade reliability and environmental compliance for global deployment.
6DFN22CA-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):
- 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
6DFN22CA-M3/H FAQ
1.How can I place an order for 6DFN22CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN22CA-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 6DFN22CA-M3/H reliable?
The price and inventory of 6DFN22CA-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 6DFN22CA-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN22CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN22CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN22CA-M3/H?
6DFN22CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN22CA-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 6DFN22CA-M3/H?
For technical support, including 6DFN22CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN22CA-M3/H requirements.
6.How does Aetrix verify that 6DFN22CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN22CA-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 6DFN22CA-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN22CA-M3/H?
All 6DFN22CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN22CA-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 6DFN22CA-M3/H part is unused and in its original packaging.
Return procedure for 6DFN22CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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