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Vishay 6DFN33CA-M3/H
- Part No.:
- 6DFN33CA-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN33CA-M3/H.pdf
- Description:
- 600W,33V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,978
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Product details
Overview
6DFN33CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, featuring 33 V nominal breakdown voltage (VBR), 28.2 V stand-off voltage (VWM), 45.7 V maximum clamping voltage (VC) at 13.1 A peak pulse current, and 600 W peak pulse power rating (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 6DFN33CA-M3/H datasheet, 6DFN33CA-M3/H pinout, 6DFN33CA-M3/H application, or 6DFN33CA-M3/H equivalent, this page delivers verified electrical parameters, thermal resistance values (RθJA = 140–175 °C/W), ESD immunity (30 kV contact/air), and precise DFN3820A mechanical dimensions for layout and AOI validation.
Technical Context
This device uses passivated anisotropic rectifier technology to deliver bidirectional clamping with low leakage (<1.0 μA at VWM) and stable breakdown tolerance (±5 %). Its junction-to-mount thermal resistance (RθJM = 5–6.5 °C/W) supports high-power transient handling on compact PCB footprints.
The DFN3820A package features side-wettable flanks for automated optical inspection and meets MSL level 1 (260 °C reflow peak), JESD 201 class 2 whisker test, and UL 94 V-0 flammability - all confirmed for the M3/H variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 31.4 / 33.0 / 34.7 V - defines reliable conduction onset under surge conditions |
| VWM | 28.2 V - maximum continuous reverse voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 45.7 V at 13.1 A - clamping voltage limiting downstream component stress during 10/1000 μs surge |
| PPPM | 600 W - peak transient power dissipation capability per standard waveform |
| TJ max | +175 °C - enables operation in high-temperature industrial and automotive under-hood environments |
| ESD immunity | 30 kV (IEC 61000-4-2 contact/air) - ensures robustness against human-body-model electrostatic events |
| RθJA | 140–175 °C/W - determines thermal derating on FR4 PCB with standard 2 oz copper footprint |
Pinout & Package
Package: DFN3820A - leadless, 2-terminal surface-mount package measuring 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), with side-wettable flanks for AOI compatibility and halogen-free, RoHS-compliant matte tin terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | No polarity marking; symmetric terminals enable identical connection in either direction |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal forms single-channel bidirectional clamping path across protected line |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or differential signal lines without polarity constraints |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder joint quality on both lateral edges |
| Low-profile height (0.88 mm) | Reduces board stack height in space-constrained consumer and portable medical devices |
| AEC-Q101 qualified (H suffix) | Validated for automotive-grade reliability including temperature cycling, HTGB, and ESD stress |
| 600 W peak pulse power | Handles high-energy transients from 24 V industrial solenoid switching or telecom line surges |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/FlexRay sensor interfaces in engine control modules from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair to clamp ±45 V transients without distorting data integrity. Use Value: Clamping voltage of 45.7 V ensures MCU I/O pins remain below absolute maximum ratings during 13.1 A surge events. |
Use Scenario: Shielding 24 V digital input channels in programmable logic controllers from relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Single-channel TVS connected between input line and ground to absorb 600 W transient energy within 1 ms. Use Value: 175 °C max junction temperature allows sustained operation in uncooled control cabinets up to 85 °C ambient. |
| Medical Imaging Signal Lines | Telecom Base Station RF Front-End |
|
Use Scenario: Guarding analog front-end ADC inputs in ultrasound transducer arrays against ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor minimizing signal distortion on MHz-range sensor signals. Use Value: Confirmed 30 kV IEC 61000-4-2 ESD rating prevents latch-up or parametric shift in precision analog paths. |
Use Scenario: Safeguarding bias lines and control signals feeding GaN power amplifiers in 5G macro base stations. IC Role / Device Role / Timing Role: Transient suppressor mounted directly at connector entry point to divert lightning-induced common-mode surges. Use Value: DFN3820A package enables placement within 2 mm of feedthrough connectors, reducing inductance and improving clamping response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33CA | DO-214AC package (SMA), higher RθJA (~150 °C/W), same VBR/VC specs | Larger footprint; less suitable for ultra-thin or high-density layouts | Select when legacy SMA footprint compatibility or manual rework access is required |
| SMCJ33CA | DO-214AB package (SMC), 1500 W PPPM, larger size, higher clamping (49.9 V) | Higher power handling but 3× larger area and 2× height vs. DFN3820A | Choose for systems requiring >1000 W surge margin where board space permits |
Compared with SMAJ33CA and SMCJ33CA, the 6DFN33CA-M3/H delivers identical clamping performance in a 75 % smaller footprint and 60 % lower profile - critical for modern sensor modules and 5G RF assemblies where thermal and spatial constraints dominate.
Availability
6DFN33CA-M3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and medical imaging signal line safeguarding requiring stable component supply and AEC-Q101 compliance.
Supply support for 6DFN33CA-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 designs and manufactures discrete semiconductors including diodes, rectifiers, and transient suppressors for industrial, automotive, and computing markets.
The 6DFN33CA-M3/H belongs to the TRANSZORB® DFN family engineered specifically for high-reliability, space-constrained transient suppression - targeting next-generation ECUs, smart sensors, and 5G infrastructure where low profile and AOI-ready packaging are mandatory.
FAQ
What is the exact breakdown voltage range for 6DFN33CA-M3/H?
The 6DFN33CA-M3/H has a guaranteed breakdown voltage range of 31.4 V (min) to 34.7 V (max) at 1.0 mA test current, with 33.0 V nominal. This ±5 % tolerance is confirmed in the Electrical Characteristics table of Vishay document 98490 and applies strictly to the CA-grade bidirectional variant of the 6DFN33CA-M3/H.
Is 6DFN33CA-M3/H qualified to AEC-Q101?
Yes, the "H" suffix in 6DFN33CA-M3/H explicitly denotes AEC-Q101 qualification. Vishay's ordering information table confirms H = AEC-Q101 qualified, and the device meets stress tests including temperature cycling, high-temperature gate bias, and ESD per IEC 61000-4-2 - all validated for automotive under-hood use.
Does 6DFN33CA-M3/H have polarity markings on the package?
No - the 6DFN33CA-M3/H is a bidirectional TVS and carries no cathode band or polarity marking. Its DFN3820A package has two identical terminals; orientation during placement does not affect functionality, simplifying automated assembly and reducing orientation-related defects.
What is the maximum clamping voltage of 6DFN33CA-M3/H at rated surge current?
The 6DFN33CA-M3/H clamps to a maximum of 45.7 V when subjected to its rated 13.1 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured and guaranteed per Vishay's datasheet Figure 1 and Electrical Characteristics table.
Can 6DFN33CA-M3/H be used in high-humidity environments?
Yes - the 6DFN33CA-M3/H uses molding compound rated UL 94 V-0 and matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102 solderability standards. Its M3 suffix also satisfies JESD 201 class 2 whisker resistance, ensuring long-term reliability in humid or thermally cycled industrial deployments.
6DFN33CA-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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- 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
6DFN33CA-M3/H FAQ
1.How can I place an order for 6DFN33CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN33CA-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 6DFN33CA-M3/H reliable?
The price and inventory of 6DFN33CA-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 6DFN33CA-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN33CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN33CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN33CA-M3/H?
6DFN33CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN33CA-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 6DFN33CA-M3/H?
For technical support, including 6DFN33CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN33CA-M3/H requirements.
6.How does Aetrix verify that 6DFN33CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN33CA-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 6DFN33CA-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN33CA-M3/H?
All 6DFN33CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN33CA-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 6DFN33CA-M3/H part is unused and in its original packaging.
Return procedure for 6DFN33CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN33CA-M3/H Tags
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