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Vishay 6DFN27A-M3/H
- Part No.:
- 6DFN27A-M3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN27A-M3/H.pdf
- Description:
- 600W,27V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,021
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Product details
Overview
6DFN27A-M3/H from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, featuring 27.0 V nominal breakdown voltage (VBR), 23.1 V stand-off voltage (VWM), 37.5 V maximum clamping voltage (VC) at 16.0 A peak pulse current, and 600 W peak pulse power rating (10/1000 μs). It protects MOSFETs and signal lines in industrial sensor units against lightning-induced transients.
For engineers reviewing the 6DFN27A-M3/H datasheet, 6DFN27A-M3/H pinout, 6DFN27A-M3/H application, or 6DFN27A-M3/H equivalent, this page delivers verified electrical parameters, thermal resistance values, ESD immunity (30 kV contact/air), polarity marking, and AOI-compatible leadless packaging details critical for PCB layout and surge protection validation.
Technical Context
This device uses passivated anisotropic rectifier technology to deliver precise unidirectional clamping with low leakage (<1.0 μA at VWM) and stable temperature coefficient (0.087 %/°C). Its junction-to-mount thermal resistance (RθJM) is 5 °C/W, enabling effective heat transfer to the PCB copper pad under surge conditions.
The DFN3820A package supports automated placement and AOI inspection via side-wettable flanks, while meeting MSL Level 1 (260 °C reflow peak) and JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band; the heatsink (exposed pad) serves as the anode terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 27.0 V - Ensures reliable triggering above system operating voltage (e.g., 24 V industrial rails) without false conduction. |
| VWM | 23.1 V - Maximum continuous reverse voltage before leakage exceeds 1.0 μA; compatible with 24 V nominal systems. |
| VC @ IPPM | 37.5 V - Clamps transient spikes to safe levels for downstream 40 V-rated MOSFETs or logic ICs during 16.0 A surges. |
| PPPM | 600 W - Sustains high-energy transients (10/1000 μs waveform) common in inductive load switching and telecom line surges. |
| TJ max | +175 °C - Enables operation in under-hood automotive or high-temperature industrial enclosures without derating. |
| RθJM | 5 °C/W - Low thermal resistance to mounting pad allows efficient dissipation into PCB copper, reducing localized heating during repeated surges. |
| ESD Rating | 30 kV (IEC 61000-4-2 contact/air) - Provides robust electrostatic discharge immunity for handheld and field-deployed sensor interfaces. |
Pinout & Package
Package: DFN3820A - 2-terminal, leadless, side-wettable flanks, exposed anode pad (heatsink), 0.88 mm typical height, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Exposed Pad) | Current return path and thermal interface | Must be soldered to large PCB copper area for thermal management and low-inductance grounding; electrically connected to cathode of internal diode structure. |
| Cathode (Marked Terminal) | Transient current sink | Connected to protected line; color band identifies polarity; carries full surge current during clamping events. |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joint quality on both lateral edges-critical for high-reliability industrial assembly. |
| Halogen-free, RoHS-compliant M3 termination | Meets JESD201 Class 2 whisker resistance and environmental compliance for global industrial and medical deployments. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, eliminating moisture sensitivity handling constraints. |
| Low-profile DFN3820A footprint | 0.79 mm × 2.18 mm body size saves board space vs. DO-214AC/SMA while maintaining 600 W surge capability. |
| Optimized junction passivation | Reduces parameter drift over temperature and time, ensuring stable VBR and leakage performance across 175 °C lifetime operation. |
Applications
| Industrial Sensor Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 24 V CAN/LIN bus signal lines in factory-floor pressure/temperature sensors exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between signal line and ground, clamping transients within 1 ns response time. Use Value: Limits induced voltage to ≤37.5 V during 16 A surges, preventing latch-up or gate oxide damage in connected transceivers. |
Use Scenario: Safeguarding microcontroller I/O pins driving solenoid valves in BCMs subjected to ISO 7637-2 Pulse 1/2a transients. IC Role / Device Role / Timing Role: Standoff-rated TVS (23.1 V) placed at MCU GPIO output, absorbing negative-going spikes before they reach silicon. Use Value: Maintains <1.0 μA leakage at 24 V rail, avoiding false wake-up or battery drain while surviving 600 W surge events. |
| Telecom Power Interface | Medical Patient Monitor Input |
Use Scenario: Shielding 48 V DC power input stage of PoE-powered access points from lightning-induced surges on outdoor Ethernet cables. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail, coordinated with upstream fuse and secondary filtering. Use Value: Delivers 37.5 V clamping at 16 A, keeping downstream DC-DC converter input below absolute maximum rating during 10/1000 μs threats. |
Use Scenario: Protecting analog front-end inputs (ECG, SpO₂) from ESD events during clinical use and cable coupling in hospital environments. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <50 pF) placed at connector entry point, shunting human-body-model discharges. Use Value: 30 kV IEC 61000-4-2 immunity ensures no data corruption or reset during routine handling, meeting IEC 60601-1-2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | DO-214AC package; 28 V VBR; 40.5 V VC @ 14.3 A; RθJA = 50 °C/W (vs. 140–175 °C/W for 6DFN27A-M3/H) | Larger footprint (4.5 × 2.7 mm); higher profile (2.2 mm); unsuitable for ultra-thin designs or AOI-dependent lines. | Select when legacy through-hole or larger SMT layouts exist and thermal budget permits higher junction rise. |
| SMF28A | SOD-123FL package; 28 V VBR; 42.1 V VC @ 13.1 A; 1.1 mm height; no side-wettable flanks. | No AOI support; lower surge rating (200 W); limited thermal dissipation due to smaller pad area. | Choose only for cost-sensitive, low-surge applications where board space and inspection capability are secondary. |
Compared with SMAJ28A and SMF28A, the 6DFN27A-M3/H offers superior thermal performance via its exposed anode pad, enables automated optical inspection for zero-defect manufacturing, and delivers higher energy handling in half the footprint-making it optimal for next-generation compact, high-reliability industrial and automotive electronics.
Availability
6DFN27A-M3/H is available at Aetrix Electronics and suitable for industrial sensor protection, automotive body control modules, and telecom power interface designs requiring stable component supply, halogen-free compliance, and AEC-Q101-grade reliability assurance.
Supply support for 6DFN27A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 6DFN27A-M3/H belongs to Vishay's TRANSZORB® DFN series, engineered specifically for high-density, AOI-compatible transient suppression in space-constrained industrial and automotive systems where thermal management and process compatibility are critical.
FAQ
What is the exact breakdown voltage tolerance for 6DFN27A-M3/H?
The 6DFN27A-M3/H has a breakdown voltage (VBR) range of 25.7 V (min) to 28.4 V (max) at 1.0 mA test current, corresponding to ±5 % tolerance around the nominal 27.0 V value as specified in the Vishay datasheet document 98464, revision 10-Nov-2023.
Does 6DFN27A-M3/H meet AEC-Q101 qualification?
No - the "H" suffix in 6DFN27A-M3/H denotes tape-and-reel packaging (7-inch reel), not AEC-Q101 qualification. The datasheet confirms this part is industrial grade; AEC-Q101 qualified variants in this family carry the "HE3" or "HQ" suffix per Vishay ordering conventions.
What is the recommended PCB pad layout for 6DFN27A-M3/H?
Vishay specifies a mounting pad layout in document 98464: a 0.79 mm × 2.18 mm central thermal pad for the anode, flanked by two 0.35 mm × 0.80 mm solder terminals. The exposed pad must connect to a minimum 25 mm² copper area for optimal thermal performance and mechanical reliability.
How does the clamping voltage of 6DFN27A-M3/H compare to SMAJ28A at rated current?
At its respective peak pulse current (16.0 A for 6DFN27A-M3/H, 14.3 A for SMAJ28A), the 6DFN27A-M3/H clamps to 37.5 V versus SMAJ28A's 40.5 V - a 3.0 V lower clamping level that better protects 40 V-rated downstream components under identical surge conditions.
Is 6DFN27A-M3/H compatible with lead-free reflow profiles?
Yes - the 6DFN27A-M3/H is rated for MSL Level 1 per J-STD-020 and supports peak reflow temperatures up to 260 °C, fully compliant with standard lead-free SAC305 soldering profiles used in modern electronics assembly.
6DFN27A-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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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
6DFN27A-M3/H FAQ
1.How can I place an order for 6DFN27A-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN27A-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 6DFN27A-M3/H reliable?
The price and inventory of 6DFN27A-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 6DFN27A-M3/H is usually 5 days.
3.What payment methods are accepted for 6DFN27A-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN27A-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN27A-M3/H?
6DFN27A-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN27A-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 6DFN27A-M3/H?
For technical support, including 6DFN27A-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN27A-M3/H requirements.
6.How does Aetrix verify that 6DFN27A-M3/H is sourced from the original manufacturer or authorized distributors?
All 6DFN27A-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 6DFN27A-M3/H meets industry standards.
7.What is the process for return or replacement of 6DFN27A-M3/H?
All 6DFN27A-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN27A-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 6DFN27A-M3/H part is unused and in its original packaging.
Return procedure for 6DFN27A-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN27A-M3/H Tags
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