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Vishay T6N27AHM3/H
- Part No.:
- T6N27AHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N27AHM3/H.pdf
- Description:
- 600W,27V 5%, DFN3820A PAR
- Quantity:
- Payment:
- Shipping:
Inventory:2,230
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Product details
Overview
T6N27AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® 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 (10/1000 μs). It is AEC-Q101 qualified and rated for TJ = 185 °C, designed for automotive sensor signal-line protection.
For engineers reviewing the T6N27AHM3/H datasheet, T6N27AHM3/H pinout, T6N27AHM3/H application, or T6N27AHM3/H equivalent, this device supports high-reliability transient suppression in space-constrained automotive ECUs, battery management systems, and ADAS sensor interfaces where low-profile, AOI-compatible packaging and 185 °C junction operation are required.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for stable clamping under repetitive surge stress. Its unidirectional configuration provides low-leakage reverse blocking up to 23.1 V while delivering precise 37.5 V clamping at 16.0 A (10/1000 μs), enabling robust protection of downstream MOSFET gates and IC inputs.
The DFN3820A package features side-wettable flanks for automated optical inspection and supports thermal resistance RθJM as low as 5 °C/W to PCB mount, critical for sustained operation at TJ = 185 °C in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 27.0 V - Ensures reliable turn-on above system operating voltage (e.g., 24 V automotive) while avoiding false triggering |
| VWM | 23.1 V - Maximum continuous reverse voltage before leakage exceeds 1.0 μA, compatible with 24 V rail transients |
| VC @ IPPM | 37.5 V - Clamps 10/1000 μs surges to safe levels for 3.3 V or 5 V logic interfaces downstream |
| IPPM | 16.0 A - Sustains 600 W surge energy without degradation under standardized lightning/inductive-switching test conditions |
| TJ max | 185 °C - Enables deployment in high-temperature zones (e.g., engine control modules) without derating |
| Package | DFN3820A - 3.95 mm × 2.18 mm × 0.88 mm footprint with side-wettable flanks for AOI and high-volume SMT placement |
| AEC-Q101 | Qualified - Meets stress-test requirements for automotive electronics including temperature cycling, HTRB, and ESD (±30 kV contact) |
Pinout & Package
DFN3820A is a 2-terminal, single-channel unidirectional TVS package with cathode marked by color band; anode connects to exposed thermal pad (heatsink).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pad) | Common reference / thermal path | Exposed copper pad serves as primary heat sink and must be soldered to large PCB copper area for RθJM ≤ 5 °C/W |
| Cathode (K) | Transient current return path | Connected to protected line; conducts surge current to ground when VBR exceeded, with polarity indicated by color band |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DFN | 0.88 mm height enables use in ultra-thin modules (e.g., radar sensors, camera ECUs) without mechanical interference |
| Side-wettable flanks | Enables 100 % automated optical inspection (AOI) of solder joints-critical for zero-defect automotive manufacturing |
| Junction passivation | Optimized anisotropic rectifier design ensures stable VBR over 1000+ surge cycles at TJ = 150 °C |
| MSL Level 1 | Rated for reflow peak of 260 °C - compatible with standard lead-free assembly without baking or special handling |
| Halogen-free & RoHS | M3 suffix confirms compliance with automotive material restrictions (JESD201 Class 2 whisker resistance, UL 94 V-0 molding compound) |
Applications
| Automotive Sensor Protection | 24 V Power Rail Clamp |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed directly at connector interface to clamp transients before reaching signal conditioning circuitry. Use Value: 37.5 V clamping limits voltage seen by 5 V ADC inputs to non-destructive levels during 10/1000 μs surges up to 16.0 A. | Use Scenario: Safeguarding 24 V supply lines feeding microcontrollers and power management ICs in engine control units exposed to alternator load dump. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, coordinated with upstream fuse and downstream LC filtering. Use Value: 600 W peak pulse rating absorbs full ISO 16750-2 Pulse 5a energy without failure, maintaining system uptime. |
| ADAS Camera Interface | Battery Management System (BMS) |
Use Scenario: Shielding high-speed image sensor data lines (e.g., MIPI CSI-2) from ESD and cable discharge events in surround-view camera modules. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF typical) placed adjacent to connector to preserve signal integrity at >1 Gbps. Use Value: 0.88 mm profile avoids interference with flex-cable routing; side-wettable flanks ensure solder joint reliability in vibration-prone mounting. | Use Scenario: Protecting cell monitor ICs and isolation amplifiers in 12–48 V BMS stacks from switching noise and ground bounce during MOSFET commutation. IC Role / Device Role / Timing Role: Localized transient suppressor at each monitoring node to prevent latch-up or damage from fast-rising dv/dt events. Use Value: 185 °C TJ rating allows operation near lithium-ion cells without thermal derating; AEC-Q101 qualification validates long-term field reliability. |
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 | DO-214AC package (larger: 4.5 × 2.7 mm), 28 V VBR, 45.4 V VC @ 13.1 A, no AEC-Q101 qualification | Not suitable for space-constrained automotive PCBs; lacks MSL Level 1 and side-wettable flanks for AOI | Select only for industrial non-automotive designs where board area is not constrained and AEC-Q101 is not required. |
| SMF28A | SOD-123FL package (2.7 × 1.7 mm), 28 V VBR, 45.4 V VC @ 13.1 A, AEC-Q101 qualified but TJ max = 150 °C | Limited to lower-temperature zones (e.g., cabin electronics); higher VC reduces margin for 3.3 V logic protection | Acceptable for cost-sensitive cabin modules where 150 °C operation suffices and 0.88 mm height is not mandatory. |
Compared with SMAJ28A and SMF28A, T6N27AHM3/H delivers superior thermal capability (185 °C vs. ≤150 °C), tighter clamping (37.5 V vs. ≥45.4 V), and automotive-grade manufacturability (side-wettable flanks, MSL Level 1, halogen-free M3), making it the preferred choice for under-hood and safety-critical signal protection.
Availability
T6N27AHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, 24 V power rail clamping, and ADAS camera interface applications requiring stable component supply, AEC-Q101 traceability, and high-temperature operational continuity.
Supply support for T6N27AHM3/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 devices, and optoelectronics with emphasis on reliability, efficiency, and automotive-grade performance.
The T6NxxA family is part of Vishay's PAR® (Protection and Regulation) TVS platform, engineered specifically for high-temperature, high-reliability automotive transient suppression where compact size, precise clamping, and AEC-Q101 validation are mandatory.
FAQ
What is the breakdown voltage tolerance of T6N27AHM3/H?
T6N27AHM3/H has a ±5 % breakdown voltage tolerance, confirmed by its "A" suffix in the part number per Vishay's ordering nomenclature. The electrical characteristics table specifies VBR min/nom/max as 25.7 V / 27.0 V / 28.4 V at 1.0 mA test current, ensuring consistent turn-on behavior across production lots for automotive-grade consistency.
Is T6N27AHM3/H suitable for bidirectional transient protection?
No, T6N27AHM3/H is strictly unidirectional, as stated in the PRIMARY CHARACTERISTICS table and reinforced by its single-color-band polarity marking. For bidirectional protection, Vishay offers the T6N27C variant (not T6N27AHM3/H); using T6N27AHM3/H in reverse-biased configurations risks permanent damage due to lack of reverse avalanche capability.
What is the maximum clamping voltage of T6N27AHM3/H at rated peak pulse current?
The maximum clamping voltage of T6N27AHM3/H is 37.5 V at 16.0 A peak pulse current (10/1000 μs waveform), per the ELECTRICAL CHARACTERISTICS table. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is validated across temperature and lot variations per AEC-Q101 test protocols.
Does T6N27AHM3/H require special PCB layout considerations?
Yes - the DFN3820A package requires a thermally enhanced layout: the exposed anode pad must be connected to ≥100 mm² of internal or external copper pour via ≥4 thermal vias (0.3 mm diameter) to achieve RθJM ≤ 5 °C/W. Insufficient copper area raises junction temperature beyond 185 °C under repeated surges, risking parametric shift or failure.
How does the HM3 suffix impact the environmental compliance of T6N27AHM3/H?
The HM3 suffix certifies that T6N27AHM3/H is halogen-free, RoHS-compliant, and passes JESD201 Class 2 whisker testing on matte tin terminations. It also confirms AEC-Q101 qualification and UL 94 V-0 compliant molding compound - all verified per Vishay Document Number 98432 and material declarations at www.vishay.com/doc?99912.
T6N27AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- 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 ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- DFN3820A
T6N27AHM3/H FAQ
1.How can I place an order for T6N27AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N27AHM3/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 T6N27AHM3/H reliable?
The price and inventory of T6N27AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N27AHM3/H is usually 5 days.
3.What payment methods are accepted for T6N27AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N27AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N27AHM3/H?
T6N27AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N27AHM3/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 T6N27AHM3/H?
For technical support, including T6N27AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N27AHM3/H requirements.
6.How does Aetrix verify that T6N27AHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N27AHM3/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 T6N27AHM3/H meets industry standards.
7.What is the process for return or replacement of T6N27AHM3/H?
All T6N27AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N27AHM3/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 T6N27AHM3/H part is unused and in its original packaging.
Return procedure for T6N27AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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