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Vishay General Semiconductor - Diodes Division 6DFN27A-M3/I
- Part No.:
- 6DFN27A-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
6DFN27A-M3/I.pdf
- Description:
- 600W,27V 5%, DFN3820A TVS
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
6DFN27A-M3/I from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in DFN3820A package, with 27 V nominal breakdown voltage (VBR = 25.7–28.4 V), 23.1 V stand-off voltage (VWM), and 600 W peak pulse power (10/1000 μs). It delivers 16.0 A peak pulse current and clamps to 37.5 V at rated surge, protecting MOSFETs and signal lines in industrial sensor interfaces.
For engineers reviewing the 6DFN27A-M3/I datasheet, 6DFN27A-M3/I pinout, 6DFN27A-M3/I application, or 6DFN27A-M3/I equivalent, key selection criteria include unidirectional clamping performance, low-profile DFN3820A footprint compatibility with AOI inspection, thermal resistance (RθJA = 175 °C/W), 30 kV ESD immunity per IEC 61000-4-2, and M3-grade halogen-free RoHS compliance for industrial-grade reliability.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for fast response to transients induced by inductive switching or lightning surges. Its unidirectional configuration provides precise reverse-biased clamping without forward conduction during normal operation.
Designed for automated SMT placement, it features side-wettable flanks on the DFN3820A package and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. Junction temperature range spans –65 °C to +175 °C, supporting harsh-environment deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V - Ensures reliable triggering above 23.1 V operating voltage while accommodating ±5 % tolerance |
| VWM | 23.1 V - Maximum continuous reverse voltage before leakage exceeds 1 μA, defining safe operating margin |
| IPPM (10/1000 μs) | 16.0 A - Peak surge current capability enabling protection against high-energy transients per industry standard waveform |
| VC @ IPPM | 37.5 V - Clamped voltage under full surge, limiting stress on downstream ICs or MOSFETs |
| PPPM | 600 W - Peak pulse power rating confirming robustness against repetitive or single-event surges |
| TJ max | +175 °C - High junction temperature rating supports operation in enclosed or thermally constrained industrial enclosures |
| RθJA | 175 °C/W - Thermal resistance defines derating behavior on standard FR4 PCBs without heatsinking |
Pinout & Package
Package: DFN3820A - 2-terminal, leadless, low-profile (0.88 mm typical height) surface-mount package with side-wettable flanks for AOI compatibility and automated placement. Cathode denoted by color band; anode connected to exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (exposed pad) | Common reference and thermal path | Provides primary heat dissipation path to PCB copper; must be soldered to large thermal pad for rated power handling |
| Cathode (marked terminal) | Transient current sink | Conducts surge current to ground when reverse voltage exceeds VBR; polarity-critical for unidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray, reducing post-SMT defect escape |
| MSL Level 1 rating | Allows unlimited floor life and supports standard 260 °C Pb-free reflow without baking preconditioning |
| 30 kV ESD immunity (IEC 61000-4-2) | Protects against human-body-model discharges in manufacturing and field environments without external shielding |
| Halogen-free, RoHS-compliant M3 termination | Meets industrial environmental compliance requirements and JESD 201 Class 2 whisker resistance for long-term reliability |
| Compatible with SMP (DO-220AA) outline | Facilitates drop-in replacement evaluation in existing layouts designed for similar power TVS footprints |
Applications
| Industrial Sensor Signal Protection | Automated Test Equipment (ATE) I/O Lines |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors from inductive kickback during relay switching in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground, clamping transients before they reach precision DAC or op-amp input stages. Use Value: Limits voltage excursion to ≤37.5 V during 16 A surges, preserving sensor accuracy and preventing latch-up in connected microcontrollers. | Use Scenario: Safeguarding digital I/O pins (TTL/CMOS) on ATE fixture boards exposed to cable discharge events and relay-induced spikes during high-speed test sequencing. IC Role / Device Role / Timing Role: Fast-response transient suppressor mounted directly at connector entry points, shunting ESD and switching noise to chassis ground. Use Value: Withstands 30 kV contact discharge and clamps within nanoseconds, eliminating false triggers and test aborts caused by transient-induced logic errors. |
| Medical Diagnostic Equipment Interfaces | Telecom Line Card Surge Protection |
Use Scenario: Shielding RS-485 communication lines between ultrasound imaging modules and control units from EFT bursts and nearby RF coupling in hospital environments. IC Role / Device Role / Timing Role: Standoff-voltage-matched TVS (VWM = 23.1 V) placed differential-mode across bus lines to suppress common-mode transients without affecting 12 V bias rails. Use Value: Maintains signal integrity under IEC 61000-4-4 level 4 (4 kV) bursts while adding <1 pF capacitance, avoiding data corruption at 10 Mbps rates. | Use Scenario: Front-end protection of Ethernet PHY interfaces on DSLAM line cards subjected to lightning-induced surges on copper pairs in outdoor cabinets. IC Role / Device Role / Timing Role: Primary unidirectional clamping device in series with gas discharge tube (GDT) secondary protection, absorbing initial 600 W energy spike. Use Value: Delivers 600 W pulse power handling and 175 °C max junction temperature, enabling sustained operation in uncooled telecom enclosures up to 70 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | DO-214AC package; higher RθJA (150 °C/W); VC = 45.4 V at same IPPM | Larger footprint; less suitable for ultra-dense PCBs; lower clamping ratio (VC/VBR ≈ 1.61 vs. 1.39) | Choose SMAJ28A only if legacy through-hole or larger SMT layout exists and thermal budget allows higher clamping voltage. |
| SMCJ28A | DO-214AB package; 1500 W PPPM; VC = 45.4 V; RθJA = 12 °C/W with heatsink | Requires external heatsinking; unsuitable for space-constrained designs; over-specified for 600 W use cases | Select SMCJ28A only when system-level surge testing requires >1000 W headroom and board area permits larger package. |
Compared with SMAJ28A and SMCJ28A, the 6DFN27A-M3/I offers superior board-area efficiency, lower clamping voltage, and built-in AOI support-making it optimal for modern industrial and medical PCBs where density, manufacturability, and precise voltage limiting are critical.
Availability
6DFN27A-M3/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automated test equipment I/O protection, and medical diagnostic communication lines requiring stable component supply and long-lifecycle assurance.
Supply support for 6DFN27A-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, TVS devices, and power MOSFETs with emphasis on reliability, ruggedness, and application-specific optimization.
The 6DFN27A-M3/I belongs to Vishay's TRANSZORB® DFN family-engineered for high-density, high-reliability transient suppression in space-constrained industrial, medical, and telecom systems where low-profile packaging and AOI-ready construction are mandatory.
FAQ
What is the exact breakdown voltage range for the 6DFN27A-M3/I?
The 6DFN27A-M3/I has a guaranteed breakdown voltage (VBR) range of 25.7 V (minimum) to 28.4 V (maximum) at 1.0 mA test current, with a nominal value of 27.0 V. This ±5 % tolerance ensures consistent clamping behavior across production lots and supports design margining against overvoltage thresholds in protected circuits.
Does the 6DFN27A-M3/I require a thermal pad connection on the PCB?
Yes, the 6DFN27A-M3/I uses the exposed anode pad as its primary thermal path. To achieve rated 600 W pulse power and maintain junction temperature below 175 °C, the pad must be soldered to a minimum 25 mm² copper area on the PCB layer, preferably with multiple thermal vias to inner or back-side planes.
Is the 6DFN27A-M3/I compatible with lead-free reflow processes?
Yes, the 6DFN27A-M3/I is qualified for Pb-free reflow per J-STD-020, with MSL Level 1 rating and maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102, ensuring reliable wetting and intermetallic formation without voiding or dewetting.
How does the 6DFN27A-M3/I perform under high-temperature operating conditions?
The 6DFN27A-M3/I maintains full functionality from –65 °C to +175 °C junction temperature. Its VBR exhibits a positive temperature coefficient of +0.087 %/°C, meaning breakdown voltage increases linearly with temperature-ensuring stable clamping margin even at elevated ambient temperatures in sealed enclosures.
Can the 6DFN27A-M3/I be used in bidirectional configurations?
No, the 6DFN27A-M3/I is strictly unidirectional. It conducts only during reverse-biased overvoltage events and blocks forward current like a standard diode. For bidirectional protection, two 6DFN27A-M3/I devices must be connected in series opposition, or a dedicated bidirectional TVS (e.g., 6DFN27CA-M3/I) should be selected instead.
6DFN27A-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):
- 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/I FAQ
1.How can I place an order for 6DFN27A-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 6DFN27A-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 6DFN27A-M3/I reliable?
The price and inventory of 6DFN27A-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 6DFN27A-M3/I is usually 5 days.
3.What payment methods are accepted for 6DFN27A-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6DFN27A-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6DFN27A-M3/I?
6DFN27A-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6DFN27A-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 6DFN27A-M3/I?
For technical support, including 6DFN27A-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6DFN27A-M3/I requirements.
6.How does Aetrix verify that 6DFN27A-M3/I is sourced from the original manufacturer or authorized distributors?
All 6DFN27A-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 6DFN27A-M3/I meets industry standards.
7.What is the process for return or replacement of 6DFN27A-M3/I?
All 6DFN27A-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with 6DFN27A-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 6DFN27A-M3/I part is unused and in its original packaging.
Return procedure for 6DFN27A-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
6DFN27A-M3/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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