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Vishay T6N33CAHM3/H
- Part No.:
- T6N33CAHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N33CAHM3/H.pdf
- Description:
- 600W,33V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,381
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Product details
Overview
T6N33CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, with 33.0 V nominal breakdown voltage (±5 %), 28.2 V stand-off voltage, and 600 W peak pulse power (10/1000 μs). It delivers 13.1 A peak pulse current and clamps to 45.7 V at that current, supporting automotive-grade protection of sensor signal lines and MOSFET gates under lightning and inductive switching transients.
For engineers reviewing the T6N33CAHM3/H datasheet, T6N33CAHM3/H pinout, T6N33CAHM3/H application, or T6N33CAHM3/H equivalent, this page provides verified electrical specs, AEC-Q101 qualification status, thermal resistance data (RθJA = 140–175 °C/W), junction temperature rating up to +185 °C, and ESD immunity per IEC 61000-4-2 (±30 kV contact/air).
Technical Context
This TVS diode uses passivated anisotropic rectifier technology optimized for high-reliability automotive environments. Its bidirectional configuration enables symmetric clamping on AC-coupled or differential signal paths without polarity constraints, and its DFN3820A package supports AOI inspection via side-wettable flanks.
The device operates across -65 °C to +185 °C junction temperature range and meets MSL Level 1 (260 °C peak reflow). With 1.0 mA test current, it achieves tight 5 % VBR tolerance and maintains ≤1.0 μA reverse leakage at VWM up to 150 °C - critical for low-power sensor interface stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (Nominal) | 33.0 V ±5 % - ensures precise clamping onset for 24 V automotive systems with margin against false triggering |
| VWM | 28.2 V - maximum continuous working voltage compatible with 24 V rail transient margins |
| IPPM | 13.1 A (10/1000 μs) - sustains surge energy without degradation in engine control or ADAS sensor nodes |
| VC @ IPPM | 45.7 V - limits downstream IC stress during 600 W transient events |
| TJ max | +185 °C - enables placement near high-temperature power stages in under-hood ECUs |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact/air) - exceeds automotive EMC requirements for infotainment and body control modules |
| RθJA | 140–175 °C/W - defines thermal derating behavior on standard FR4 PCBs with 2 oz copper |
Pinout & Package
DFN3820A package: 2-terminal, leadless, side-wettable flanks, 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), halogen-free, RoHS-compliant, AEC-Q101 qualified. No cathode band - bidirectional symmetry confirmed.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (1–2) | Bidirectional transient path | Interchangeable terminals; clamps both positive and negative excursions above ±28.2 V |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile DFN3820A | 0.88 mm height enables stacking under connectors or in space-constrained ADAS camera modules |
| AEC-Q101 qualification | Validated reliability for automotive powertrain and chassis applications per stress-test requirements |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joints without X-ray - reduces manufacturing defect escape |
| Junction passivation | Stable leakage performance (<1.0 μA at 150 °C) prevents drift in battery-monitoring or LIN bus interfaces |
| MSL Level 1 | Compatible with standard SMT reflow profiles up to 260 °C peak - no moisture sensitivity handling required |
Applications
| Automotive Sensor Protection | 24 V Power Rail Clamping |
|---|---|
Use Scenario: Protecting CAN/LIN transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses in vehicle body control units. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point before signal conditioning circuitry. Use Value: Limits transient overvoltage to ≤45.7 V while maintaining <1.0 μA leakage at 28.2 V - preserving signal integrity and ADC reference accuracy. | Use Scenario: Safeguarding 24 V supply inputs to microcontrollers and motor drivers in electric power steering (EPS) modules. IC Role / Device Role / Timing Role: Primary surge suppression element parallel to bulk capacitance, absorbing 600 W pulses without thermal runaway. Use Value: Withstands 13.1 A surges and operates up to +185 °C - enabling direct mounting on high-temp PCB zones near power FETs. |
| ADAS Camera Interface | Infotainment Display Data Lines |
Use Scenario: Shielding MIPI CSI-2 differential pairs in surround-view camera systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <100 pF at 0 V) placed adjacent to image sensor IC input pins. Use Value: Clamps ±30 kV ESD strikes per IEC 61000-4-2 while adding negligible signal distortion - preserving 1.5 Gbps video timing margins. | Use Scenario: Protecting LVDS or eDP lanes between head unit SoC and TFT display in automotive dashboards. IC Role / Device Role / Timing Role: Symmetric clamping device on each differential pair, leveraging bidirectional operation to handle common-mode transients. Use Value: Matches impedance profile of high-speed traces due to compact DFN3820A footprint - minimizing stub-induced reflections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33CA | DO-214AC package, 1.5 mm height, 400 W PPPM, higher RθJA (~190 °C/W) | Less suitable for ultra-thin modules; requires larger PCB area and lacks AOI-compatible flanks | Select when legacy through-hole or larger SMT footprint is acceptable and cost sensitivity outweighs AOI or thermal needs |
| SMCJ33CA | DO-214AB package, 2.79 mm height, 1500 W PPPM, lower clamping ratio (VC/VBR ≈ 1.35 vs. 1.39) | Better for high-energy industrial surges but incompatible with space-constrained automotive modules | Choose for non-automotive 24 V systems where board space and reflow compatibility are secondary to surge margin |
Compared with SMAJ33CA and SMCJ33CA, the T6N33CAHM3/H offers superior manufacturability (side-wettable flanks), tighter thermal resistance (RθJA down to 140 °C/W), and AEC-Q101 validation - making it the preferred choice for next-generation automotive electronics requiring zero-defect assembly and under-hood reliability.
Availability
T6N33CAHM3/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, full traceability, and long-term lifecycle support.
Supply support for T6N33CAHM3/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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, automotive-qualified components.
The T6N33CAHM3/H belongs to Vishay's PAR® family of surface-mount TVS diodes, engineered specifically for robust transient suppression in automotive electronics operating under extreme thermal and ESD stress conditions.
FAQ
What is the breakdown voltage tolerance of the T6N33CAHM3/H?
The T6N33CAHM3/H has a nominal breakdown voltage of 33.0 V with a ±5 % tolerance, meaning VBR falls between 31.4 V and 34.7 V at 1.0 mA test current. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining in 24 V automotive systems where overvoltage thresholds must be precisely controlled.
Is the T6N33CAHM3/H qualified for automotive use?
Yes, the T6N33CAHM3/H is AEC-Q101 qualified, as indicated by the "H" grade and "M3" suffix in its ordering code. It undergoes stress testing per AEC-Q101 requirements including HTGB, HTRB, and temperature cycling, and is rated for operation from -65 °C to +185 °C junction temperature - meeting specifications for under-hood and safety-critical automotive applications.
What does the "HM3" suffix mean in T6N33CAHM3/H?
The "HM3" suffix in T6N33CAHM3/H denotes AEC-Q101 qualification ("H"), halogen-free and RoHS-compliant materials ("M"), and compliance with JESD201 Class 2 whisker resistance ("3"). The trailing "/H" indicates tape-and-reel packaging in 7-inch reels with 3500 units per reel - a standard logistics configuration for automated SMT assembly.
Does the T6N33CAHM3/H require a heatsink for 600 W surge handling?
No, the T6N33CAHM3/H does not require an external heatsink for single-event 600 W (10/1000 μs) surges. Its DFN3820A package provides sufficient thermal mass and low RθJM (5–6.5 °C/W) to dissipate transient energy without exceeding +185 °C junction temperature - provided PCB layout follows Vishay's recommended 2 oz copper pad and thermal relief guidelines.
How does the T6N33CAHM3/H compare to unidirectional TVS diodes in sensor protection?
The T6N33CAHM3/H is bidirectional, making it ideal for protecting AC-coupled or differential signal lines (e.g., CAN, LIN, MIPI) where voltage polarity reverses. Unlike unidirectional TVS diodes, it clamps both positive and negative transients symmetrically without requiring external biasing or polarity-aware layout - simplifying design and improving robustness in automotive sensor interfaces where signal polarity is undefined or alternating.
T6N33CAHM3/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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- 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
T6N33CAHM3/H FAQ
1.How can I place an order for T6N33CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N33CAHM3/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 T6N33CAHM3/H reliable?
The price and inventory of T6N33CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N33CAHM3/H is usually 5 days.
3.What payment methods are accepted for T6N33CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N33CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N33CAHM3/H?
T6N33CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N33CAHM3/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 T6N33CAHM3/H?
For technical support, including T6N33CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N33CAHM3/H requirements.
6.How does Aetrix verify that T6N33CAHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N33CAHM3/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 T6N33CAHM3/H meets industry standards.
7.What is the process for return or replacement of T6N33CAHM3/H?
All T6N33CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N33CAHM3/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 T6N33CAHM3/H part is unused and in its original packaging.
Return procedure for T6N33CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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