My Inquiry
My Account
Vishay T6N39CAHM3/I
- Part No.:
- T6N39CAHM3/I
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N39CAHM3/I.pdf
- Description:
- 600W,39V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
T6N39CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, with 39 V nominal breakdown voltage (±5 %), 33.3 V stand-off voltage, and 600 W peak pulse power rating (10/1000 μs). It delivers clamping voltage of 53.9 V at 11.1 A peak surge current and operates up to 185 °C junction temperature-designed for automotive sensor line protection against load-switching transients and ESD.
For engineers reviewing the T6N39CAHM3/I datasheet, T6N39CAHM3/I pinout, T6N39CAHM3/I application, or T6N39CAHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, side-wettable DFN3820A footprint for AOI compatibility, bidirectional clamping behavior, and 30 kV IEC 61000-4-2 ESD immunity-critical for high-reliability automotive electronics design.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for junction stability at TJ = 185 °C, enabling sustained operation in under-hood automotive environments. Its bidirectional configuration provides symmetrical clamping for AC-coupled or floating signal lines without polarity dependency.
The DFN3820A package features leadless construction with side-wettable flanks, supporting automated optical inspection and reflow soldering per J-STD-020 MSL level 1 (260 °C peak). Thermal resistance is rated at RθJA ≤ 175 °C/W and RθJM ≤ 6.5 °C/W, ensuring effective heat dissipation on standard FR4 PCBs with 2 oz copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nom) | 39 V ±5 % - defines precise voltage threshold where avalanche conduction begins reliably |
| VWM | 33.3 V - maximum continuous reverse voltage before leakage exceeds 1 μA, sets operating margin |
| VC @ IPPM | 53.9 V at 11.1 A - clamping voltage during 10/1000 μs surge, determines protected IC's max stress level |
| PPPM | 600 W (10/1000 μs) - peak transient energy handling capacity for standardized lightning/surge events |
| TJ max | +185 °C - enables use in high-temperature automotive zones without derating penalties |
| ESD Rating | ±30 kV contact/air (IEC 61000-4-2) - meets stringent automotive EMC immunity requirements |
| Package | DFN3820A - 3.95 mm × 2.18 mm × 0.88 mm low-profile, side-wettable for AOI and process control |
Pinout & Package
DFN3820A is a 2-terminal, bidirectional, leadless package with no cathode marking. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102. The device has no polarity band and supports automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity-no fixed polarity assignment |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; symmetric conduction path enables AC-line protection without orientation constraints |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| Side-wettable flanks | Enables 100 % automated optical inspection (AOI) of solder joints without X-ray, reducing post-reflow defect escape |
| Junction passivation | Optimized anisotropic rectifier die structure ensures stable VBR drift < ±5 % over lifetime at 150 °C |
| Halogen-free & RoHS | M3 suffix confirms halogen-free molding compound, Pb-free terminations, and full RoHS compliance per EU Directive 2011/65/EU |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60 % RH; supports standard SMT reflow up to 260 °C peak without baking |
Applications
| Automotive Sensor Signal Lines | Infotainment USB/UART Interfaces |
|---|---|
Use Scenario: Protecting LIN, CAN FD, or analog sensor outputs (e.g., pressure, temperature) from inductive kickback and ESD in engine control modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching MCU ADC or transceiver inputs. Use Value: Limits voltage excursion to ≤53.9 V during 11.1 A surges, preserving signal integrity and preventing latch-up in 3.3 V/5 V automotive microcontrollers. | Use Scenario: Safeguarding low-speed serial interfaces in head units and display modules exposed to user-accessible ports and board-level ESD events. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed across differential pairs (e.g., UART TX/RX) to suppress fast-rising ESD pulses while maintaining signal rise/fall times. Use Value: 30 kV IEC 61000-4-2 immunity and 0.88 mm height allow integration near connectors without interfering with stacked PCB assemblies. |
| Body Control Module Power Rails | ADAS Camera Serial Links |
Use Scenario: Suppressing load-dump and alternator ripple-induced spikes on 12 V supply rails feeding door module MCUs and LED drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS providing low-impedance path to ground during >33.3 V excursions, complementing bulk capacitance and upstream fusing. Use Value: 600 W peak power rating sustains multiple 10/1000 μs surges without degradation, meeting ISO 7637-2 Pulse 5a requirements. | Use Scenario: Protecting GMSL or FPD-Link III serializer/deserializer lanes in surround-view camera systems subject to cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical at 0 V) bidirectional clamp placed adjacent to SerDes I/O pins to minimize signal distortion. Use Value: DFN3820A footprint allows placement within 2 mm of connector, reducing stub length and preserving 1+ Gbps signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ39CAHE3/5BT | DO-214AC (SMA) package, 1.5 mm height, 600 W rating, same VBR/VC specs but higher RθJA (~200 °C/W) | Through-hole or larger SMT footprint; less suitable for ultra-thin modules or AOI-dependent production | Select when legacy SMA layout exists or thermal budget permits higher junction rise |
| TPSMD39CA | DO-214AB (SMC) package, 2.3 mm height, 600 W, AEC-Q101 qualified, slightly higher VC (55.1 V) | Higher profile limits use in space-constrained ADAS or infotainment modules; better heat spreading on large pads | Choose for designs needing enhanced thermal robustness over footprint density |
Compared with SMAJ39CAHE3/5BT and TPSMD39CA, the T6N39CAHM3/I offers superior board-area efficiency (3.95 mm × 2.18 mm), AOI-ready side-wettable leads, and lower thermal resistance to mount (RθJM ≤ 6.5 °C/W), making it optimal for next-gen automotive ECUs where height, inspection yield, and thermal coupling matter.
Availability
T6N39CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, infotainment interface hardening, and body control module surge suppression requiring stable component supply across multi-year vehicle production cycles.
Supply support for T6N39CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and automotive-grade validation.
The T6N39CAHM3/I belongs to Vishay's PAR® (Protection Against Risk) TVS family-engineered specifically for high-temperature, high-reliability automotive electronics where AEC-Q101 compliance, compact packaging, and repeatable clamping performance are mandatory.
FAQ
What is the exact breakdown voltage tolerance for T6N39CAHM3/I?
The T6N39CAHM3/I has a nominal breakdown voltage of 39 V with a tolerance of ±5 %, meaning the measured VBR at 1 mA test current falls between 37.1 V and 41.0 V. This tight tolerance ensures consistent clamping behavior across production lots and supports robust design margins in automotive safety-critical circuits.
Is T6N39CAHM3/I compatible with lead-free reflow profiles?
Yes, the T6N39CAHM3/I is fully compatible with lead-free reflow processes, rated for MSL level 1 per J-STD-020 with a maximum peak temperature of 260 °C. Its matte tin-plated terminals meet J-STD-002 solderability requirements, and the DFN3820A package withstands standard Pb-free thermal profiles without delamination or parametric shift.
Does T6N39CAHM3/I require a heatsink for 600 W surge handling?
No, the T6N39CAHM3/I does not require an external heatsink for single-event 600 W (10/1000 μs) surge handling. Its RθJM ≤ 6.5 °C/W enables effective transient heat transfer to the PCB copper mount pad. However, repeated surges or elevated ambient temperatures necessitate proper copper area design per Vishay's thermal guidelines in document 98489.
How does the bidirectional nature of T6N39CAHM3/I affect circuit layout?
The bidirectional nature of T6N39CAHM3/I eliminates polarity concerns during placement-no cathode band or orientation marking is present. This simplifies layout for AC-coupled lines (e.g., LIN, differential sensors) and reduces assembly errors. Layout requires symmetric trace routing to both terminals and direct connection to ground plane for lowest impedance clamping path.
What automotive standards does T6N39CAHM3/I meet beyond AEC-Q101?
In addition to AEC-Q101 qualification, the T6N39CAHM3/I meets IEC 61000-4-2 Level 4 (±30 kV contact/air) for ESD immunity and is designed to support compliance with ISO 7637-2 (Pulse 1, 2a, 3a/b, 5a) for transient suppression in 12 V automotive systems. Its 185 °C TJ rating aligns with under-hood temperature requirements defined in ISO 16750-2.
T6N39CAHM3/I 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 11.1A
- 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
T6N39CAHM3/I FAQ
1.How can I place an order for T6N39CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N39CAHM3/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 T6N39CAHM3/I reliable?
The price and inventory of T6N39CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N39CAHM3/I is usually 5 days.
3.What payment methods are accepted for T6N39CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N39CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N39CAHM3/I?
T6N39CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N39CAHM3/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 T6N39CAHM3/I?
For technical support, including T6N39CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N39CAHM3/I requirements.
6.How does Aetrix verify that T6N39CAHM3/I is sourced from the original manufacturer or authorized distributors?
All T6N39CAHM3/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 T6N39CAHM3/I meets industry standards.
7.What is the process for return or replacement of T6N39CAHM3/I?
All T6N39CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with T6N39CAHM3/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 T6N39CAHM3/I part is unused and in its original packaging.
Return procedure for T6N39CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N39CAHM3/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
