My Inquiry
My Account
Vishay T6N47AHM3/H
- Part No.:
- T6N47AHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N47AHM3/H.pdf
- Description:
- 600W,47V 5%, DFN3820A PAR
- Quantity:
- Payment:
- Shipping:
Inventory:2,449
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
T6N47AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, featuring 47 V nominal breakdown voltage (VBR), 40.2 V stand-off voltage (VWM), 64.8 V clamping voltage at 9.3 A peak pulse current, and 600 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified for automotive sensor line protection.
For engineers reviewing the T6N47AHM3/H datasheet, T6N47AHM3/H pinout, T6N47AHM3/H application, or T6N47AHM3/H equivalent, this device supports high-reliability transient suppression in space-constrained automotive ECUs, battery management systems, and ADAS sensor interfaces where TJ = 185 °C operation and AOI-compatible side-wettable flanks 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 enables precise reverse-biased overvoltage clamping on signal or power rails without forward conduction interference.
The DFN3820A package delivers low thermal resistance (RθJM = 5 °C/W typical) and supports automated optical inspection via side-wettable flanks. It operates across -65 °C to +185 °C junction temperature range and meets IEC 61000-4-2 ±30 kV ESD immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 44.7 / 47.0 / 49.4 V - ensures reliable triggering above system operating voltage while accommodating ±5 % tolerance |
| VWM | 40.2 V - maximum continuous reverse voltage before leakage exceeds 1 μA, compatible with 36 V automotive supply rails |
| VC @ IPPM | 64.8 V - clamping voltage at 9.3 A peak pulse current, limiting downstream IC stress during ISO 7637-2 pulse 1/2a transients |
| PPPM | 600 W (10/1000 μs) - sustains high-energy surges common in 12 V/24 V vehicle electrical systems |
| TJ max | +185 °C - enables placement near heat sources (e.g., power MOSFETs, DC-DC converters) without derating |
| ESD immunity | ±30 kV contact/air per IEC 61000-4-2 - protects CAN, LIN, and sensor analog front-ends from human-body-model events |
| Package | DFN3820A - 3.95 mm × 2.18 mm footprint with side-wettable flanks for solder-joint quality verification |
Pinout & Package
DFN3820A package: 2-terminal, single unidirectional TVS configuration. Anode connected to exposed thermal pad (heatsink); cathode marked by color band on top surface. Matte tin-plated terminals, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (thermal pad) | Common reference and thermal path | Must be soldered to large copper pour for RθJM ≤ 6.5 °C/W; electrically tied to system ground or low-impedance return |
| Cathode (top-side marked terminal) | Transient current sink | Connected to protected line (e.g., CAN_H, sensor VOUT); conducts surge current to anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD stress per JEDEC standards |
| Side-wettable flanks | Enables automated optical inspection of solder fillet formation without X-ray, reducing manufacturing defect escape |
| TJ = 185 °C rating | Eliminates need for thermal derating in engine bay or powertrain modules operating above 150 °C ambient |
| Halogen-free, RoHS-compliant | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
| MSL Level 1 | Zero floor life limitation - can be stored indefinitely at ≤30 °C/60 % RH without baking prior to reflow |
Applications
| Automotive CAN Bus Protection | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Protecting CAN transceivers from load-dump and jump-start transients in 12 V vehicle networks. IC Role / Device Role / Timing Role: Unidirectional TVS placed between CAN_H/CAN_L and ground to clamp differential and common-mode surges. Use Value: Limits clamped voltage to ≤64.8 V, preserving ISO 11898-2 receiver integrity during 100 V/50 ms load dump events. | Use Scenario: Safeguarding microcontroller and power management ICs against ISO 7637-2 Pulse 1 (inductive switch-off) on main 12 V supply rail. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input filter stage, upstream of DC-DC converter. Use Value: Absorbs 600 W peak energy within 1 ms, preventing brownout or latch-up of downstream logic during engine cranking. |
| ADAS Camera Sensor Interface | Battery Management System (BMS) Signal Lines |
Use Scenario: Shielding FPD-Link III or GMSL serializer/deserializer data lines from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 120 pF at 0 V) placed directly at connector interface. Use Value: Maintains signal integrity up to 3 Gbps while suppressing ±30 kV ESD per IEC 61000-4-2 without data corruption. | Use Scenario: Protecting cell voltage monitoring inputs (e.g., on LTC6813) from transients induced by relay switching or pack-level faults. IC Role / Device Role / Timing Role: Precision clamping element referenced to isolated ground, ensuring <1 μA leakage at 40.2 V. Use Value: Prevents false overvoltage alarms and maintains measurement accuracy across -40 °C to +125 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/57T | DO-214AC package; higher RθJA (150 °C/W); VC = 67.0 V @ 8.7 A; no AEC-Q101 qualification | Not suitable for under-hood automotive use due to lower TJ max (150 °C) and MSL Level 2 requirement | Select only for cost-sensitive industrial PCBs where AOI is not required and ambient <105 °C |
| TPSMD47A | SMD-2 package; same VBR/VC; RθJM = 7.5 °C/W; AEC-Q101 qualified but no side-wettable flanks | Lacks AOI capability; requires X-ray inspection for solder joint validation; slightly larger footprint (4.5 × 3.2 mm) | Prefer when board-level reliability testing includes X-ray, or when thermal pad routing constraints prevent DFN3820A mounting |
Compared with SMAJ47A-E3/57T and TPSMD47A, T6N47AHM3/H offers superior thermal performance (RθJM = 5 °C/W), guaranteed AOI compatibility, and full automotive qualification - making it the optimal choice for next-generation compact, high-temperature ECU designs requiring zero-defect solder joints.
Availability
T6N47AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, battery management systems, and ADAS sensor interfaces requiring stable component supply, AEC-Q101 compliance, and high-temperature reliability.
Supply support for T6N47AHM3/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 automotive, industrial, and computing applications.
The T6N47AHM3/H belongs to Vishay's PAR® (Protection Array) TVS family, engineered specifically for high-reliability transient suppression in automotive environments where space, thermal margin, and process control are critical design constraints.
FAQ
What is the maximum clamping voltage of the T6N47AHM3/H at its rated peak pulse current?
The T6N47AHM3/H has a maximum clamping voltage (VC) of 64.8 V at 9.3 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per Figure 1 in Vishay document 98432 and defines the upper voltage limit imposed on protected circuitry during surge events. The T6N47AHM3/H maintains this clamping performance across its full operating temperature range.
Is the T6N47AHM3/H suitable for use in under-hood automotive applications?
Yes, the T6N47AHM3/H is explicitly designed for under-hood use: it is AEC-Q101 qualified, rated for TJ = 185 °C, and features halogen-free, RoHS-compliant construction meeting automotive material standards. Its DFN3820A package provides robust thermal dissipation (RθJM = 5 °C/W typical), enabling reliable operation in high-ambient-temperature zones such as engine control modules where the T6N47AHM3/H is commonly deployed.
Does the T6N47AHM3/H require special PCB layout considerations for thermal management?
Yes - the exposed thermal pad (anode) of the T6N47AHM3/H must be soldered to a minimum 100 mm² copper area using at least four thermal vias (0.3 mm diameter, spaced ≤1 mm apart) to achieve specified RθJM ≤ 6.5 °C/W. Per Vishay's recommended mounting pad layout, insufficient copper or missing vias will degrade surge handling capability and accelerate junction temperature rise during repetitive transients.
How does the side-wettable flank feature of the T6N47AHM3/H improve manufacturing yield?
The side-wettable flanks on the T6N47AHM3/H enable automated optical inspection (AOI) of solder fillet geometry without X-ray imaging. This allows real-time detection of insufficient solder, bridging, or misalignment during SMT assembly - reducing field failure risk in automotive production. Unlike standard DFN packages, the T6N47AHM3/H's flank metallization ensures consistent reflectivity for AOI camera systems, directly supporting zero-defect goals in Tier 1 supplier processes.
What is the reverse leakage current specification for the T6N47AHM3/H at maximum operating temperature?
At TJ = 150 °C and VWM = 40.2 V, the T6N47AHM3/H exhibits a maximum reverse leakage current (ID) of 1.0 μA, as specified in Table 1 of Vishay document 98432. This ultra-low leakage preserves signal integrity in high-impedance sensor bias networks and prevents erroneous fault detection in battery monitoring circuits where the T6N47AHM3/H is often applied.
T6N47AHM3/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):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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
T6N47AHM3/H FAQ
1.How can I place an order for T6N47AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N47AHM3/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 T6N47AHM3/H reliable?
The price and inventory of T6N47AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N47AHM3/H is usually 5 days.
3.What payment methods are accepted for T6N47AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N47AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N47AHM3/H?
T6N47AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N47AHM3/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 T6N47AHM3/H?
For technical support, including T6N47AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N47AHM3/H requirements.
6.How does Aetrix verify that T6N47AHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N47AHM3/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 T6N47AHM3/H meets industry standards.
7.What is the process for return or replacement of T6N47AHM3/H?
All T6N47AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N47AHM3/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 T6N47AHM3/H part is unused and in its original packaging.
Return procedure for T6N47AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N47AHM3/H 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
