My Inquiry
My Account
Vishay T6N43CAHM3/H
- Part No.:
- T6N43CAHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N43CAHM3/H.pdf
- Description:
- 600W,43V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,187
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
T6N43CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, featuring 43 V nominal breakdown voltage (±5 %), 36.8 V stand-off voltage, 59.3 V maximum clamping voltage at 10.1 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 against inductive switching transients.
For engineers reviewing the T6N43CAHM3/H datasheet, T6N43CAHM3/H pinout, T6N43CAHM3/H application, or T6N43CAHM3/H equivalent, this page delivers verified electrical specs, package dimensions, clamping behavior under surge, thermal resistance (RθJA = 175 °C/W), and AEC-Q101 qualification evidence - all critical for automotive-grade ESD/surge co-design and AOI-compatible layout validation.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with junction passivation optimized for high-temperature stability and low leakage. Its bidirectional configuration enables symmetrical clamping on both polarities without polarity marking, supporting robust protection of differential or AC-coupled signal paths.
Designed for DFN3820A footprint with side-wettable flanks, it supports automated optical inspection and reflow soldering up to 260 °C (MSL Level 1). Thermal performance is characterized by RθJM = 6.5 °C/W (junction-to-mount), enabling effective heat transfer to PCB copper when mounted per JEDEC 51-14.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 40.9 V min / 43.0 V nom / 45.2 V max at 1 mA - defines precise voltage threshold where clamping initiates under transient stress |
| Stand-off Voltage VWM | 36.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA; sets safe operating margin below VBR |
| Clamping Voltage VC | 59.3 V at IPPM = 10.1 A (10/1000 μs) - actual voltage seen by protected IC during worst-case surge event |
| Peak Pulse Power PPPM | 600 W (10/1000 μs) - energy-handling capability validated per IEC 61000-4-5 surge waveform standards |
| Junction Temperature Range | -65 °C to +185 °C - enables operation in under-hood automotive environments and high-reliability industrial control units |
| ESD Immunity | ±30 kV contact & air discharge per IEC 61000-4-2 - protects against human-body-model electrostatic events during handling and operation |
| Package | DFN3820A (3.95 mm × 2.18 mm × 0.88 mm) - low-profile, leadless, side-wettable flanks for AOI and high-density PCB layouts |
Pinout & Package
DFN3820A package: 2-terminal, bidirectional device with no cathode band; terminals are symmetric and non-polarized. Molding compound meets UL 94 V-0; matte tin-plated leads comply with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Common connection point; interchangeable with Terminal 2 due to symmetrical internal structure |
| Terminal 2 | Anode/Cathode (bidirectional) | Second terminal; forms complete transient shunt path across protected line and ground or rail |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control, ADAS sensors, and body modules |
| Side-wettable flanks | Enables 100 % automated optical inspection (AOI) of solder joints without X-ray, reducing manufacturing defect escape |
| TJ = 185 °C rating | Supports sustained operation in high-ambient-temperature zones such as powertrain ECUs and LED headlamp drivers |
| Low-profile height (0.88 mm) | Permits use in space-constrained modules like radar front-ends and compact camera sensor assemblies |
| Halogen-free, RoHS-compliant | Meets global environmental compliance requirements for automotive OEM supply chains and industrial export markets |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver inputs and analog sensor outputs (e.g., pressure, temperature) in vehicle cabin and chassis modules from load-dump and ISO 7637-2 pulses. IC Role / Device Role: Bidirectional shunt clamp placed between signal line and ground to limit transient overvoltage below IC absolute maximum ratings. Use Value: Clamps 10/1000 μs surges to ≤59.3 V while sustaining 10.1 A peak current - preserving signal integrity and preventing latch-up in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding RS-485/CAN FD physical layer transceivers in factory automation PLCs and motor drives exposed to EFT bursts and lightning-induced surges. IC Role / Device Role: Line-to-ground TVS on differential bus pairs (CAN_H/CAN_L) to suppress common-mode transients without distorting signal edges. Use Value: 600 W peak power rating and 36.8 V stand-off ensure compatibility with 24 V industrial bus systems while maintaining <1 μA leakage at operating voltage. |
| Automotive Camera Module ESD | High-Temp Power Supply Rail Clamp |
|
Use Scenario: ESD protection on MIPI CSI-2 data lanes and power rails of surround-view camera modules operating near engine compartments. IC Role / Device Role: Low-capacitance bidirectional clamp on high-speed serial lines to prevent damage from ±30 kV HBM discharges without signal degradation. Use Value: Side-wettable flanks enable AOI verification of micro-solder joints; 185 °C TJ rating ensures reliability during thermal cycling in sealed housings. |
Use Scenario: Secondary overvoltage clamp on 12 V/24 V auxiliary power rails feeding infotainment head units and telematics gateways. IC Role / Device Role: Standby shunt device that activates only during abnormal overvoltage events (e.g., alternator load dump), minimizing quiescent power loss. Use Value: 36.8 V VWM provides 10 % margin above nominal 36 V max system voltage; 59.3 V VC limits downstream regulator input stress during 600 W surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43CA | DO-214AC (SMA) package; higher RθJA (~110 °C/W); 43 V VBR same tolerance; 600 W rating | Through-hole or larger SMT footprint required; less suitable for AOI or ultra-thin modules | Select SMAJ43CA only if board-level rework accessibility or legacy footprint compatibility is prioritized over density and inspection capability |
| SMCJ43CA | DO-214AB (SMC) package; 1500 W rating; same VBR/VWM/VC; RθJA ~35 °C/W but 5.3 mm height | Higher power handling but incompatible with low-profile automotive modules; not AEC-Q101 qualified | Choose SMCJ43CA for industrial power supplies needing >600 W surge margin, not for space- or qualification-constrained automotive designs |
Compared with SMAJ43CA and SMCJ43CA, the T6N43CAHM3/H uniquely combines AEC-Q101 qualification, DFN3820A AOI support, and 0.88 mm profile - making it the only option meeting simultaneous automotive reliability, manufacturability, and miniaturization requirements.
Availability
T6N43CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface hardening, and high-temperature power rail clamping requiring stable component supply across production lifecycles.
Supply support for T6N43CAHM3/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, MOSFETs, and protection devices with emphasis on automotive, industrial, and computing applications.
The T6N43CAHM3/H belongs to Vishay's PAR® TVS family, engineered specifically for high-reliability transient suppression in automotive electronics where AEC-Q101 compliance, thermal robustness, and AOI-compatible packaging are mandatory.
FAQ
What is the exact breakdown voltage tolerance for T6N43CAHM3/H?
The T6N43CAHM3/H has a breakdown voltage VBR of 40.9 V (min), 43.0 V (nominal), and 45.2 V (max) measured at 1 mA test current, corresponding to a ±5 % tolerance as indicated by the "CA" suffix in the part number. This tolerance is guaranteed across -65 °C to +185 °C operating temperature range per the Vishay datasheet revision 17-Oct-2023.
Is T6N43CAHM3/H compatible with lead-free reflow processes?
Yes, the T6N43CAHM3/H is qualified for lead-free reflow with a maximum peak temperature of 260 °C per J-STD-020 (MSL Level 1). Its matte tin-plated terminals meet J-STD-002 solderability requirements, and the DFN3820A package is rated for standard Pb-free SAC305 profiles without delamination or voiding.
Does T6N43CAHM3/H have polarity marking on the package?
No, the T6N43CAHM3/H is a bidirectional TVS diode and carries no cathode band or polarity marking. The DFN3820A package features symmetric terminals, and either terminal may be connected to line or ground - its internal structure provides identical clamping behavior for positive and negative transients.
What is the maximum clamping voltage of T6N43CAHM3/H under a 10/1000 μs surge?
The maximum clamping voltage VC of T6N43CAHM3/H is 59.3 V at a peak pulse current IPPM of 10.1 A with a 10/1000 μs waveform. This value is measured per Figure 3 in the datasheet and represents the worst-case voltage imposed on protected circuitry during standardized surge testing.
How does the thermal resistance of T6N43CAHM3/H impact PCB layout design?
The T6N43CAHM3/H has RθJA = 175 °C/W (max) and RθJM = 6.5 °C/W (max), meaning effective thermal management requires direct copper connection to the DFN3820A mounting pads. Layout must include ≥20 mm² of 2-oz copper pour per terminal, with thermal vias to inner layers, to maintain junction temperature within 185 °C under repeated 600 W surges.
T6N43CAHM3/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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 10.1A
- 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
T6N43CAHM3/H FAQ
1.How can I place an order for T6N43CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N43CAHM3/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 T6N43CAHM3/H reliable?
The price and inventory of T6N43CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N43CAHM3/H is usually 5 days.
3.What payment methods are accepted for T6N43CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N43CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N43CAHM3/H?
T6N43CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N43CAHM3/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 T6N43CAHM3/H?
For technical support, including T6N43CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N43CAHM3/H requirements.
6.How does Aetrix verify that T6N43CAHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N43CAHM3/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 T6N43CAHM3/H meets industry standards.
7.What is the process for return or replacement of T6N43CAHM3/H?
All T6N43CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N43CAHM3/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 T6N43CAHM3/H part is unused and in its original packaging.
Return procedure for T6N43CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N43CAHM3/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 …
