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Vishay General Semiconductor - Diodes Division T6N27AHM3/I
- Part No.:
- T6N27AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N27AHM3/I.pdf
- Description:
- LOW-PROFILE VERSION 600 W UNI-DI
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
T6N27AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, with 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 is AEC-Q101 qualified and rated for TJ = 185 °C, designed for automotive sensor signal-line protection against inductive switching transients.
For engineers reviewing the T6N27AHM3/I datasheet, T6N27AHM3/I pinout, T6N27AHM3/I application, or T6N27AHM3/I equivalent, this page delivers verified electrical parameters, package dimensions, thermal resistance (RθJA = 175 °C/W), ESD immunity (30 kV contact/air), and real-world automotive use context - all critical for robust transient suppression design in high-reliability embedded systems.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for junction stability up to 185 °C, enabling operation in under-hood automotive environments. Its unidirectional configuration provides low-leakage reverse blocking (IR ≤ 1.0 μA at VWM) while delivering fast clamping response to 10/1000 μs surges.
The DFN3820A package features side-wettable flanks for automated optical inspection (AOI) and solder joint reliability validation. Thermal resistance from junction-to-mount (RθJM) is 6.5 °C/W, supporting efficient heat transfer to PCB copper when mounted on standard 2 oz. FR4 footprints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 27.0 V - precise breakdown threshold ensuring reliable triggering before downstream IC damage |
| VWM | 23.1 V - maximum continuous reverse operating voltage without leakage degradation |
| VC @ IPPM | 37.5 V - clamped voltage during 16.0 A surge, limiting stress on protected circuitry |
| PPPM | 600 W - peak surge energy handling capability per 10/1000 μs waveform |
| TJ max | +185 °C - enables sustained operation in high-temperature automotive zones (e.g., engine control units) |
| ESD Rating | ±30 kV (IEC 61000-4-2) - protects against human-body-model electrostatic discharge events |
| RθJA | 175 °C/W - defines thermal derating slope for ambient temperature design margins |
Pinout & Package
Package: DFN3820A - leadless, 2-terminal surface-mount package with 2.18 mm × 3.95 mm footprint, 0.88 mm typical height, matte tin-plated terminals, and cathode marked by color band. Heatsink pad is electrically connected to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Pad) | Positive terminal / thermal path | Electrically tied to PCB ground plane or chassis; primary heat conduction path to board copper |
| Cathode (Marked End) | Transient current sink | Connected to protected signal line; conducts surge current to anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder fillets without X-ray, reducing post-reflow defect escapes |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| Junction passivation | Stabilizes VBR drift across temperature (αT = 0.087 %/°C) and extends lifetime under thermal cycling |
| MSL Level 1 | Zero floor-life limitation; supports reflow at 260 °C peak without baking or moisture sensitivity concerns |
| Halogen-free & RoHS-compliant | Meets automotive environmental compliance requirements (JESD201 Class 2 whisker test, UL 94 V-0 molding compound) |
Applications
| Automotive Sensor Protection | Powertrain Control Unit (PCU) Inputs |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor inputs (e.g., pressure, temperature) in engine bay modules exposed to load-dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches MCU ADC inputs or LIN transceivers. Use Value: Maintains signal integrity below 37.5 V clamp level while surviving 600 W surges - preventing latch-up or permanent damage to 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding digital enable lines and feedback signals in 12 V/48 V hybrid powertrain inverters subject to high dV/dt noise and relay bounce. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on gate driver control logic lines interfacing with high-side MOSFETs. Use Value: Sub-1 ns response time and 1.0 μA leakage at 23.1 V ensure no interference with timing-critical PWM signals during normal operation. |
| Body Control Module (BCM) Signal Lines | ADAS Camera Power Input |
Use Scenario: Shielding CAN FD and PWM-controlled lighting outputs in BCMs from battery reverse-polarity and jump-start transients. IC Role / Device Role / Timing Role: Standoff-blocking TVS placed between microcontroller GPIO and external connectors. Use Value: 23.1 V VWM allows full 12 V system compatibility while rejecting >37.5 V spikes - eliminating need for series resistors or additional filtering. | Use Scenario: Front-end protection for 5 V camera module power rails subjected to ISO 7637-2 Pulse 1/2a/5a in ADAS domain controllers. IC Role / Device Role / Timing Role: Primary transient suppressor on input side of LDO regulators feeding image sensors and SerDes ICs. Use Value: 185 °C TJ rating ensures uninterrupted operation inside sealed camera housings near headlights or grilles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A-E3/57T (Vishay) | DO-214AC package; higher RθJA (110 °C/W); 28 V VBR; 43.5 V VC @ 13.8 A | Through-hole or larger SMD footprint; less suitable for ultra-thin automotive modules | Select when legacy layout reuse or higher surge margin (700 W) is prioritized over space and thermal performance |
| TPSMF28A (STMicroelectronics) | DFN2510-10 package; 28 V VBR; 43.5 V VC @ 13.8 A; RθJA = 160 °C/W; AEC-Q101 qualified | Near-identical electrical specs but slightly larger footprint (2.5 mm × 1.0 mm vs. 2.18 mm × 3.95 mm) and lower thermal efficiency | Choose if dual-sourcing across Vishay/ST is required, accepting minor thermal derating above 125 °C ambient |
Compared with SMAJ28A-E3/57T and TPSMF28A, the T6N27AHM3/I offers superior thermal performance (RθJM = 6.5 °C/W), tighter VBR tolerance (±5 %), and smaller DFN3820A footprint - making it optimal for space-constrained, high-temperature automotive signal-line protection where clamping precision and board-level heat dissipation are critical.
Availability
T6N27AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, powertrain control unit inputs, and body control module signal lines requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for T6N27AHM3/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, thermal performance, and automotive qualification.
The T6N27AHM3/I belongs to Vishay's PAR® (Protection and Regulation) TVS family, engineered specifically for high-temperature, high-reliability transient suppression in automotive electronics - targeting under-hood, ADAS, and electrified powertrain applications.
FAQ
What is the breakdown voltage tolerance for T6N27AHM3/I?
The T6N27AHM3/I has a ±5 % breakdown voltage tolerance, with a nominal VBR of 27.0 V and specified range of 25.7 V (min) to 28.4 V (max) at 1.0 mA test current. This tight tolerance ensures predictable clamping behavior across production lots and temperature extremes, critical for protecting sensitive 3.3 V or 5 V automotive interfaces without false triggering.
Is T6N27AHM3/I compatible with lead-free reflow processes?
Yes, T6N27AHM3/I is fully compatible with lead-free reflow processes, meeting J-STD-020 MSL Level 1 with a maximum peak temperature of 260 °C. Its matte tin-plated terminals and halogen-free molding compound support robust solder joint formation without voiding or intermetallic issues, and it requires no pre-baking prior to assembly.
Does T6N27AHM3/I have automotive qualification?
Yes, T6N27AHM3/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's 98432 datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD (30 kV contact/air), validating its suitability for automotive powertrain, chassis, and ADAS applications.
What is the thermal resistance from junction to ambient for T6N27AHM3/I?
The maximum junction-to-ambient thermal resistance (RθJA) for T6N27AHM3/I is 175 °C/W, measured per JEDEC 51-2A on a standard 2 oz. FR4 PCB. This value guides thermal derating calculations - for example, at 125 °C ambient, the device can sustain ~3.4 W steady-state power before reaching its 185 °C TJ limit.
How does the DFN3820A package of T6N27AHM3/I support automated optical inspection (AOI)?
The DFN3820A package of T6N27AHM3/I features side-wettable flanks - vertical sidewalls with solderable plating that form visible fillets during reflow. This geometry enables standard AOI systems to inspect solder joint quality without requiring X-ray, improving first-pass yield and reducing escape risk in high-volume automotive manufacturing.
T6N27AHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 2-VDFN
- Series:
- PAR®
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN3820A
T6N27AHM3/I FAQ
1.How can I place an order for T6N27AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N27AHM3/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 T6N27AHM3/I reliable?
The price and inventory of T6N27AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N27AHM3/I is usually 5 days.
3.What payment methods are accepted for T6N27AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N27AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N27AHM3/I?
T6N27AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N27AHM3/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 T6N27AHM3/I?
For technical support, including T6N27AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N27AHM3/I requirements.
6.How does Aetrix verify that T6N27AHM3/I is sourced from the original manufacturer or authorized distributors?
All T6N27AHM3/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 T6N27AHM3/I meets industry standards.
7.What is the process for return or replacement of T6N27AHM3/I?
All T6N27AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with T6N27AHM3/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 T6N27AHM3/I part is unused and in its original packaging.
Return procedure for T6N27AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N27AHM3/I Tags
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