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Vishay General Semiconductor - Diodes Division 6DFN24A-M3/I
- Part No.:
- 6DFN24A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN24A-M3/I.pdf
- Description:
- 600W,24V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:13,960
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Product details
Overview
6DFN24A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, featuring 24 V nominal breakdown voltage (VBR = 22.8–25.2 V), 20.5 V stand-off voltage (VWM), 33.2 V clamping voltage at 18.1 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It protects MOSFETs and ICs in industrial sensor signal lines against lightning-induced transients.
For engineers reviewing the 6DFN24A-M3/I datasheet, 6DFN24A-M3/I pinout, 6DFN24A-M3/I application, or 6DFN24A-M3/I equivalent, key selection criteria include unidirectional clamping performance, low-profile DFN3820A footprint with side-wettable flanks for AOI, 175 °C max junction temperature, and M3-grade halogen-free/RoHS-compliant construction.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response to transient overvoltages. Its single-element unidirectional configuration provides precise clamping with low leakage (<1 μA at VWM) and stable breakdown voltage across temperature (αT = 0.085 %/°C).
Thermal design is supported by RθJM = 5–6.5 °C/W (junction-to-mount) and RθJA = 140–175 °C/W (junction-to-ambient on FR4), enabling reliable operation up to 175 °C junction temperature under repetitive surge conditions per IEC 61000-4-2 (±30 kV ESD).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 22.8 / 24.0 / 25.2 V - Ensures consistent turn-on threshold across production lots and temperature |
| VWM | 20.5 V - Maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 33.2 V - Clamped voltage during 18.1 A 10/1000 μs surge, limiting stress on protected ICs |
| PPPM | 600 W - Peak surge power handling capability under standard 10/1000 μs waveform |
| IPPM | 18.1 A - Maximum non-repetitive surge current the device safely clamps without failure |
| Junction temp. range | −65 to +175 °C - Enables use in harsh industrial and automotive under-hood environments |
| ESD immunity | ±30 kV contact/air (IEC 61000-4-2) - Meets highest-level system-level ESD protection requirements |
Pinout & Package
Package: DFN3820A - 2-terminal, leadless, low-profile (0.88 mm typical height) surface-mount package with side-wettable flanks for automated optical inspection (AOI) and high-yield reflow soldering. Polarity marked by cathode band; anode connected to exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (thermal pad) | Current return path & thermal interface | Exposed copper pad serves as primary heat sink; must be soldered to PCB copper pour for thermal management |
| Cathode (marked terminal) | Transient current entry point | Connected to protected line; conducts surge current to ground when VWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables 100% automated optical inspection (AOI) of solder joint quality on both sides of the DFN package |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking, simplifying SMT assembly |
| M3 material grade | Halogen-free, RoHS-compliant, Pb-free terminations with JESD 201 Class 2 whisker resistance |
| Low profile (0.88 mm) | Reduces board stack height in space-constrained applications such as portable medical sensors and IoT edge nodes |
| Compatible with SMP (DO-220AA) | Enables drop-in replacement in existing layouts designed for larger packages without footprint redesign |
Applications
| Industrial Sensor Signal Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24 V analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping surges before they reach ADC input or microcontroller GPIO. Use Value: Maintains signal integrity with <1 μA leakage at 20.5 V, while clamping 18.1 A surges to ≤33.2 V to prevent damage to 3.3 V or 5 V interface circuitry. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins in door modules and seat control units against battery reverse polarity and jump-start spikes. IC Role / Device Role / Timing Role: Standoff-rated TVS on LIN data line and supply rail, absorbing 600 W pulses without degradation over 100,000+ cycles. Use Value: Withstands −65 to +175 °C operating range and meets AEC-Q101 reliability requirements when paired with H-grade variants; M3 version supports industrial-grade cost-sensitive designs. |
| Medical Patient Monitoring Interface | Telecom Power Supply Input |
Use Scenario: Shielding isolated analog front-end inputs in portable ECG and SpO₂ monitors from ESD events and electrostatic discharge during clinical handling. IC Role / Device Role / Timing Role: Fast-response unidirectional clamp on differential sensor inputs, leveraging 30 kV IEC 61000-4-2 immunity to meet IEC 60601-1-2 compliance. Use Value: Low capacitance (typ. <100 pF at 0 V) avoids signal distortion on high-impedance biopotential traces; side-wettable flanks ensure AOI-verified solder joints for safety-critical traceability. |
Use Scenario: Secondary-level surge suppression on 24 V DC input rails of PoE-powered telecom switches and base station remote radio units. IC Role / Device Role / Timing Role: Coordinated clamping device downstream of primary MOV/GDT stages, limiting let-through voltage to protect DC-DC controllers and PMICs. Use Value: 600 W peak power rating and 33.2 V clamping enable robust coordination with upstream protectors; DFN3820A footprint allows dense placement near connectors without sacrificing thermal performance. |
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 | DO-214AC package; higher RθJA (≈200 °C/W); 33.2 V clamping at 17.9 A; same VBR range | Larger footprint (4.5 × 2.7 mm vs. 3.95 × 2.18 mm); less suitable for ultra-dense layouts | Select SMAJ24A only if legacy through-hole or larger SMT compatibility is required; not pin-compatible |
| SMCJ24A | DO-214AB package; 1500 W PPPM; 38.9 V VC @ 38.8 A; same VBR tolerance | Higher power handling but larger size (7.11 × 6.22 mm); requires more PCB area and thermal relief | Choose SMCJ24A when surge energy exceeds 600 W; otherwise, 6DFN24A-M3/I offers superior density and AOI support |
Compared with SMAJ24A and SMCJ24A, the 6DFN24A-M3/I delivers identical clamping performance in a 60 % smaller footprint with side-wettable flanks for process assurance-making it optimal for next-generation compact, high-reliability industrial and medical electronics where board space and assembly yield are critical.
Availability
6DFN24A-M3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, medical patient monitoring devices, and telecom power supply inputs requiring stable component supply and long-term manufacturability.
Supply support for 6DFN24A-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 6DFN24A-M3/I belongs to Vishay's TRANSZORB® DFN family-engineered for high-density, high-reliability transient suppression in space-constrained industrial, medical, and communications equipment where low-profile packaging and AOI-ready construction are mandatory.
FAQ
What is the maximum clamping voltage of the 6DFN24A-M3/I under a 10/1000 μs surge?
The 6DFN24A-M3/I has a maximum clamping voltage (VC) of 33.2 V at its rated peak pulse current of 18.1 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 98464 and ensures protected downstream components experience limited overvoltage stress during transient events.
Does the 6DFN24A-M3/I require special PCB layout considerations for thermal performance?
Yes-the 6DFN24A-M3/I features an exposed anode thermal pad that must be soldered to a minimum 25 mm² copper pour on the PCB to achieve the specified RθJM of 5–6.5 °C/W. Insufficient copper area or missing thermal vias will degrade surge endurance and increase junction temperature beyond 175 °C under repeated transients.
Is the 6DFN24A-M3/I compatible with lead-free reflow profiles?
Yes-the 6DFN24A-M3/I is qualified for lead-free reflow with a maximum peak temperature of 260 °C (per J-STD-020 MSL Level 1), and its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 solderability standards. No pre-baking is required prior to assembly.
How does the 6DFN24A-M3/I compare to bidirectional TVS diodes in signal line protection?
The 6DFN24A-M3/I is unidirectional and intended for DC-biased lines like 24 V sensor supplies or LIN bus, where reverse conduction is not needed. Unlike bidirectional types, it provides lower leakage (<1 μA at VWM) and tighter VBR tolerance (±5 %), improving accuracy in precision analog circuits protected by the 6DFN24A-M3/I.
What is the ESD rating of the 6DFN24A-M3/I, and how is it verified?
The 6DFN24A-M3/I achieves ±30 kV contact and air discharge per IEC 61000-4-2, verified per Vishay's internal qualification testing using C = 150 pF and R = 330 Ω. This rating applies to the packaged device and supports system-level ESD compliance in end equipment without additional external protection layers.
6DFN24A-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):
- 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
6DFN24A-M3/I FAQ
1.How can I place an order for 6DFN24A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN24A-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 6DFN24A-M3/I reliable?
The price and inventory of 6DFN24A-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 6DFN24A-M3/I is usually 5 days.
3.What payment methods are accepted for 6DFN24A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN24A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN24A-M3/I?
6DFN24A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN24A-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 6DFN24A-M3/I?
For technical support, including 6DFN24A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN24A-M3/I requirements.
6.How does Aetrix verify that 6DFN24A-M3/I is sourced from the original manufacturer or authorized distributors?
All 6DFN24A-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 6DFN24A-M3/I meets industry standards.
7.What is the process for return or replacement of 6DFN24A-M3/I?
All 6DFN24A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN24A-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 6DFN24A-M3/I part is unused and in its original packaging.
Return procedure for 6DFN24A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN24A-M3/I Tags
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