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Vishay 6DFN24CA-M3/H
- Part No.:
- 6DFN24CA-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN24CA-M3/H.pdf
- Description:
- 600W,24V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,327
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Product details
Overview
6DFN24CA-M3/H from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, with 24.0 V nominal breakdown voltage (±5%), 20.5 V stand-off voltage, 33.2 V clamping voltage at 18.1 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It protects signal lines and MOSFET gates in industrial sensor interfaces.
For engineers reviewing the 6DFN24CA-M3/H datasheet, 6DFN24CA-M3/H pinout, 6DFN24CA-M3/H application, or 6DFN24CA-M3/H equivalent, key selection criteria include clamping performance under 10/1000 μs surge, bidirectional ESD immunity up to 30 kV (IEC 61000-4-2), thermal resistance (RθJA = 175 °C/W), and M3-grade halogen-free RoHS-compliant construction.
Technical Context
This device uses anisotropic rectifier technology with junction passivation for stable bidirectional clamping. Its DFN3820A package features side-wettable flanks enabling automated optical inspection and high-reliability reflow soldering per J-STD-020 MSL level 1 (260 °C peak).
It delivers 33.2 V clamping at 18.1 A (10/1000 μs), operates from –65 °C to +175 °C, and exhibits ≤1.0 μA reverse leakage at 20.5 V (TA = 25 °C) and ≤5.0 μA at TJ = 150 °C - confirming robustness in thermally demanding environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nom) | 24.0 V ±5% - ensures precise triggering above system operating voltage without false trips |
| VWM | 20.5 V - maximum continuous working voltage compatible with 24 V nominal bus systems |
| VC @ IPPM | 33.2 V - limits transient overshoot to protect downstream 3.3 V/5 V logic and gate drivers |
| IPPM (10/1000 μs) | 18.1 A - sustains industry-standard lightning/surge pulses without degradation |
| PPPM | 600 W - provides high-energy suppression capability in ultra-low-profile footprint |
| TJ max | +175 °C - supports operation in under-hood automotive and industrial power electronics |
| ESD Rating | ±30 kV contact/air (IEC 61000-4-2) - eliminates need for secondary ESD protection on sensitive inputs |
Pinout & Package
Package: DFN3820A - 2.18 mm × 1.98 mm × 0.88 mm low-profile leadless package with side-wettable flanks, UL 94 V-0 molding compound, matte tin-plated terminals, and no cathode band (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode / Cathode (bidirectional) | Common terminal - symmetrical conduction enables polarity-agnostic placement on PCB |
| Pin 2 | Anode / Cathode (bidirectional) | Common terminal - forms single-channel TVS path between two nodes; no internal series impedance |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder joints - critical for high-yield SMT manufacturing |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak - eliminates baking requirements before assembly |
| M3 material grade | Halogen-free, RoHS-compliant, and JESD 201 Class 2 whisker-resistant - meets industrial and automotive reliability standards |
| Low profile (0.88 mm) | Reduces board stack height in space-constrained modules such as IoT edge sensors and portable medical devices |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) and digital I/O (CAN/LIN transceivers) from load dump and ESD in factory automation sensors. IC Role / Device Role / Timing Role: Primary transient voltage suppressor placed directly at connector entry point, shunting surges before reaching precision ADC or microcontroller GPIO. Use Value: Clamps 18.1 A surges to ≤33.2 V, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding LIN bus physical layer and door module switch inputs against battery reverse connection transients and ISO 7637-2 Pulse 1/2a. IC Role / Device Role / Timing Role: Standalone TVS on LIN data line and wake-up input, rated for 175 °C junction temperature to survive engine bay proximity. Use Value: Withstands 600 W peak pulse energy while maintaining <1.0 μA leakage at 20.5 V - preserves low-power sleep current integrity. |
| Medical Patient Monitor Port | Telecom Power Supply Input |
Use Scenario: Shielding USB-C and RS-232 ports on bedside monitors from ESD events during clinical handling and cable hot-plug. IC Role / Device Role / Timing Role: Bidirectional ESD clamp on differential signal pairs, leveraging symmetric VBR tolerance to avoid signal distortion. Use Value: 30 kV IEC 61000-4-2 contact discharge rating eliminates need for external spark gaps or multi-stage filtering. | Use Scenario: Secondary surge protection on 24 V DC input rails of PoE-powered telecom switches after primary MOV stage. IC Role / Device Role / Timing Role: Fast-response clamping device limiting residual transients to safe levels for downstream DC-DC controllers and PMICs. Use Value: 33.2 V clamping voltage ensures margin below 36 V absolute maximum ratings of common buck controllers (e.g., LM5017, TPS54332). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/57T | DO-214AC package (4.5 × 2.7 mm), higher RθJA (150 °C/W), unidirectional only | Requires polarity-aware layout; less suitable for AC-coupled or floating lines | Select when legacy through-hole or larger SMT footprint is acceptable and unidirectional protection suffices |
| SMCJ24CA | DO-214AB package (7.11 × 6.22 mm), 1500 W rating, same bidirectional configuration | Higher power handling but 3× larger footprint - unsuitable for miniaturized designs | Select when system-level surge requirements exceed 600 W and board area permits larger case outline |
Compared with SMAJ24A-E3/57T and SMCJ24CA, the 6DFN24CA-M3/H uniquely combines bidirectional operation, ultra-compact DFN3820A packaging, side-wettable flanks for AOI, and M3-grade reliability - making it optimal for next-generation space- and reliability-constrained industrial and automotive electronics.
Availability
6DFN24CA-M3/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, medical patient monitor ports, and telecom power supply inputs requiring stable component supply across extended production lifecycles.
Supply support for 6DFN24CA-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, TVS, MOSFETs, and optoelectronics with emphasis on high-reliability, high-efficiency, and application-specific solutions.
The 6DFNxxCA family is engineered for compact, high-performance transient suppression in modern electronics - targeting space-constrained, thermally aggressive, and ESD-sensitive applications across industrial, automotive, and medical markets.
FAQ
What is the clamping voltage of the 6DFN24CA-M3/H at its rated peak pulse current?
The 6DFN24CA-M3/H has a maximum clamping voltage (VC) of 33.2 V at its specified peak pulse current (IPPM) of 18.1 A under the standard 10/1000 μs waveform. This value is measured per Figure 3 in the official Vishay datasheet (Document Number: 98490) and defines the upper voltage limit imposed on protected circuitry during surge events. The 6DFN24CA-M3/H maintains this clamping performance across its full operating temperature range.
Is the 6DFN24CA-M3/H suitable for automotive applications requiring AEC-Q101 qualification?
No - the 6DFN24CA-M3/H carries the "H" suffix in its ordering code, which denotes AEC-Q101 qualification. Per Vishay's ordering information table (page 3), "H = AEC-Q101 qualified", and the preferred part number 6DFN24CA-M3/H explicitly includes this suffix. Therefore, the 6DFN24CA-M3/H is AEC-Q101 qualified and approved for use in automotive powertrain, chassis, and body electronics where high-reliability transient suppression is required.
Does the 6DFN24CA-M3/H require a specific PCB pad layout for reliable soldering?
Yes - the 6DFN24CA-M3/H uses the DFN3820A package with side-wettable flanks, and Vishay provides a recommended mounting pad layout in the datasheet (page 5). The layout specifies copper land patterns optimized for thermal dissipation and solder joint visibility during AOI. Deviating from the recommended footprint may compromise thermal performance (RθJA degrades beyond 175 °C/W) and solder joint reliability. The 6DFN24CA-M3/H must be assembled using JEDEC J-STD-020-compliant reflow profiles.
What is the maximum reverse leakage current of the 6DFN24CA-M3/H at elevated temperature?
At junction temperature TJ = 150 °C and stand-off voltage VWM = 20.5 V, the 6DFN24CA-M3/H exhibits a maximum reverse leakage current (IR) of 5.0 μA. This value is specified in the Electrical Characteristics table (page 2) and confirms stable blocking behavior under high-temperature operating conditions typical in engine control units or industrial motor drives. The 6DFN24CA-M3/H maintains low leakage to prevent unintended current paths in always-on circuits.
How does the 6DFN24CA-M3/H compare to standard SMA or SMB package TVS diodes in terms of board space?
The 6DFN24CA-M3/H occupies only 2.18 mm × 1.98 mm (≈4.3 mm²) in the DFN3820A package, which is ~65% smaller than SMA (4.5 × 2.7 mm = 12.2 mm²) and ~85% smaller than SMB (4.6 × 3.95 mm = 18.2 mm²) packages. This reduction enables dense routing in compact modules like wearable medical sensors or multi-port telecom interfaces. The 6DFN24CA-M3/H achieves equivalent 600 W surge rating in this miniature footprint without sacrificing clamping performance or thermal robustness.
6DFN24CA-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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 18.1A
- 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
6DFN24CA-M3/H FAQ
1.How can I place an order for 6DFN24CA-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN24CA-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 6DFN24CA-M3/H reliable?
The price and inventory of 6DFN24CA-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 6DFN24CA-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN24CA-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN24CA-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN24CA-M3/H?
6DFN24CA-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN24CA-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 6DFN24CA-M3/H?
For technical support, including 6DFN24CA-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN24CA-M3/H requirements.
6.How does Aetrix verify that 6DFN24CA-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN24CA-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 6DFN24CA-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN24CA-M3/H?
All 6DFN24CA-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN24CA-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 6DFN24CA-M3/H part is unused and in its original packaging.
Return procedure for 6DFN24CA-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN24CA-M3/H Tags
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