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Vishay T6N27CAHM3/H
- Part No.:
- T6N27CAHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N27CAHM3/H.pdf
- Description:
- 600W,27V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,669
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Product details
Overview
T6N27CAHM3/H from Vishay General Semiconductor is a bidirectional 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 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 T6N27CAHM3/H datasheet, T6N27CAHM3/H pinout, T6N27CAHM3/H application, or T6N27CAHM3/H equivalent, this device delivers verified bidirectional clamping performance, side-wettable flanks for AOI compatibility, and high-temperature reliability in compact DFN3820A footprint-critical for space-constrained automotive ECUs and ADAS sensor interfaces.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with junction passivation optimized for stable breakdown behavior under thermal stress. Its bidirectional configuration enables symmetrical transient suppression on AC-coupled or differential signal lines without polarity constraints.
The DFN3820A package provides low thermal resistance (RθJM = 5 °C/W typ.) and supports automated placement with matte tin-plated terminals compliant to J-STD-002 and JESD 22-B102. It meets MSL Level 1 and JESD 201 Class 2 whisker requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 25.7 / 27.0 / 28.4 V - Ensures reliable conduction onset above system operating voltage while accommodating ±5 % tolerance |
| VWM | 23.1 V - Maximum continuous reverse voltage before leakage exceeds 1.0 μA, defining safe operating margin for 24 V automotive systems |
| VC @ IPPM | 37.5 V - Clamped voltage at 16.0 A peak pulse current, limiting downstream IC stress during 600 W transients |
| PPPM | 600 W (10/1000 μs) - Sustains high-energy surges common in load-dump and ISO 7637-2 Pulse 1/2a events |
| TJ max | +185 °C - Enables operation in under-hood environments and supports long-term reliability per AEC-Q101 stress testing |
| ESD immunity | ±30 kV (IEC 61000-4-2 contact/air) - Protects sensitive analog front-ends from human-body-model ESD events |
Pinout & Package
Package: DFN3820A - 2-terminal, leadless, halogen-free, RoHS-compliant, side-wettable flanks for AOI. Dimensions: 3.95 mm × 2.18 mm × 0.88 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Common terminal pair | No polarity marking; symmetric conduction allows placement without orientation check in PCB layout |
| Exposed pad (bottom) | Thermal & electrical ground reference | Provides low-inductance path to PCB ground plane and enhances thermal dissipation (RθJM = 5 °C/W) |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of differential or AC-coupled signals (e.g., CAN FD, LIN, sensor bridges) without polarity dependency |
| Side-wettable flanks | Supports automated optical inspection (AOI) of solder joints on 2-terminal DFN, eliminating X-ray requirement for production validation |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD stress-required for Tier-1 ECU and ADAS modules |
| 185 °C junction rating | Permits operation in high-ambient zones (e.g., near engine control units) with derating margin up to +150 °C ambient |
| MSL Level 1 | Allows unlimited floor life and reflow at 260 °C peak without baking, simplifying SMT manufacturing flow |
Applications
| Automotive Sensor Signal Protection | 24 V Power Rail Surge Suppression |
|---|---|
Use Scenario: Protecting analog outputs of pressure, temperature, and position sensors in engine bay modules exposed to load-switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at sensor connector interface. Use Value: Limits induced transients to ≤37.5 V, preserving ADC input integrity and preventing latch-up in microcontroller analog front-ends. |
Use Scenario: Suppressing ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (load dump) on 24 V supply rails feeding infotainment head units. IC Role / Device Role / Timing Role: Primary transient suppressor mounted upstream of DC/DC converter input filter. Use Value: Absorbs 600 W pulses without degradation, maintaining rail stability and avoiding brownout resets during vehicle cranking. |
| CAN FD Bus Line Protection | ADAS Camera Interface ESD Guarding |
Use Scenario: Safeguarding CAN FD transceiver I/O pins against ESD and coupled noise in body control modules. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed between CANH/CANL and ground, adjacent to connector. Use Value: 30 kV IEC 61000-4-2 immunity preserves bus integrity without distorting >2 Mbps data edges due to minimal junction capacitance. |
Use Scenario: Shielding MIPI CSI-2 differential pairs in surround-view camera modules from assembly-line ESD and roadside static discharge. IC Role / Device Role / Timing Role: Compact DFN TVS integrated into camera flex PCB near FPC connector. Use Value: 0.88 mm height and side-wettable flanks enable AOI-compatible placement in tight camera housing, ensuring full ESD coverage without layout redesign. |
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-E3/57T | DO-214AC (SMA) package; 28 V VBR; 400 W PPPM; unidirectional; RθJA = 50 °C/W | Requires polarity-aware layout; higher thermal resistance limits sustained surge duty cycle | Use where legacy SMA footprint exists and bidirectionality is not required; avoid in new AEC-Q101 designs |
| SMCJ28CA | DO-214AB (SMC) package; 28 V VBR; 1500 W PPPM; bidirectional; RθJA = 15 °C/W | Larger 7.11 mm × 6.22 mm footprint; higher clamping voltage (45.4 V) reduces system margin | Select when higher single-pulse energy handling is critical and board space permits larger case outline |
Compared with SMAJ28A-E3/57T and SMCJ28CA, T6N27CAHM3/H offers optimal balance of AEC-Q101 compliance, compact DFN3820A footprint, 600 W capability, and 37.5 V clamping-making it the preferred choice for new automotive sensor and communication interface designs requiring AOI support and high-temperature operation.
Availability
T6N27CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, 24 V power rail surge suppression, and CAN FD bus line guarding requiring stable component supply across multi-year production cycles.
Supply support for T6N27CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability and automotive-grade solutions.
The T6N27CAHM3/H belongs to Vishay's PAR® TVS family-engineered specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, with focus on compact packaging, thermal robustness, and AOI-ready manufacturability.
FAQ
What is the breakdown voltage tolerance of T6N27CAHM3/H?
The T6N27CAHM3/H has a ±5 % breakdown voltage tolerance, confirmed by its "CA" suffix per Vishay's ordering nomenclature. Its specified VBR range is 25.7 V (min) to 28.4 V (max) at 1.0 mA test current, with 27.0 V nominal value. This tolerance ensures consistent clamping behavior across production lots while allowing design margin for worst-case system overvoltage conditions.
Is T6N27CAHM3/H compatible with lead-free reflow processes?
Yes, T6N27CAHM3/H is fully compatible with lead-free reflow processes. It meets JEDEC J-STD-020 MSL Level 1 and supports a maximum peak reflow temperature of 260 °C. The matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 solderability standards, and the HM3 suffix confirms qualification to JESD 201 Class 2 whisker resistance.
Does T6N27CAHM3/H require a heatsink for 600 W pulse handling?
No external heatsink is required for single-pulse 600 W (10/1000 μs) events. The DFN3820A package achieves RθJM = 5 °C/W (typ.) when mounted on a standard FR4 PCB with adequate copper area. Thermal simulations per JEDEC 51-14 confirm junction temperature remains within 185 °C limit for ≤1 pulse/second duty cycle under typical board layouts.
How does the side-wettable flank design of T6N27CAHM3/H benefit manufacturing?
The side-wettable flanks on T6N27CAHM3/H enable reliable Automated Optical Inspection (AOI) of solder joint quality on both terminals-eliminating the need for X-ray inspection in high-volume automotive SMT lines. This reduces final-test cost and improves first-pass yield, especially critical for safety-critical modules where zero-defect soldering is mandated.
Can T6N27CAHM3/H be used in place of unidirectional TVS diodes?
T6N27CAHM3/H is strictly bidirectional and must not replace unidirectional TVS diodes in DC-biased circuits without circuit review. Its symmetrical V-I curve provides equal clamping in both polarities, making it suitable for AC-coupled or floating signal lines-but unsuitable for protecting single-rail logic inputs where reverse conduction would cause malfunction or damage.
T6N27CAHM3/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:
- -
- Bidirectional Channels:
- 1
- 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
T6N27CAHM3/H FAQ
1.How can I place an order for T6N27CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N27CAHM3/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 T6N27CAHM3/H reliable?
The price and inventory of T6N27CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N27CAHM3/H is usually 5 days.
3.What payment methods are accepted for T6N27CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N27CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N27CAHM3/H?
T6N27CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N27CAHM3/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 T6N27CAHM3/H?
For technical support, including T6N27CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N27CAHM3/H requirements.
6.How does Aetrix verify that T6N27CAHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N27CAHM3/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 T6N27CAHM3/H meets industry standards.
7.What is the process for return or replacement of T6N27CAHM3/H?
All T6N27CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N27CAHM3/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 T6N27CAHM3/H part is unused and in its original packaging.
Return procedure for T6N27CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N27CAHM3/H Tags
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