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Vishay T6N68CAHM3/H
- Part No.:
- T6N68CAHM3/H
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- 2-VDFN
- Datasheet:
-
T6N68CAHM3/H.pdf
- Description:
- 600W,68V 5%, DFN3820A BIDIR TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,590
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Product details
Overview
T6N68CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount PAR® Transient Voltage Suppressor in DFN3820A package, with 68 V nominal breakdown voltage (VBR), 58.1 V stand-off voltage (VWM), and 600 W peak pulse power (10/1000 μs), designed for automotive-grade ESD and surge protection of sensor signal lines and MOSFET gates.
For engineers reviewing the T6N68CAHM3/H datasheet, T6N68CAHM3/H pinout, T6N68CAHM3/H application, or T6N68CAHM3/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, clamping behavior at 6.5 A IPPM, thermal resistance data, and real-world use context for high-reliability automotive electronics design.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology optimized for junction stability up to TJ = 185 °C, enabling operation in under-hood automotive environments. Its bidirectional configuration provides symmetrical clamping for AC-coupled or differential signal lines without polarity constraints.
The DFN3820A package features side-wettable flanks for automated optical inspection (AOI) and supports reflow soldering at 260 °C peak per J-STD-020 MSL Level 1. Thermal resistance is specified as RθJA = 140–175 °C/W and RθJM = 5–6.5 °C/W, confirming efficient heat transfer to PCB mount plane.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 64.6 / 68.0 / 71.4 V - ensures reliable triggering above system operating voltage while accommodating ±5 % tolerance |
| VWM | 58.1 V - maximum continuous reverse voltage before leakage exceeds 1 μA, defining safe operating margin |
| IPPM (10/1000 μs) | 6.5 A - peak surge current capability directly determines clamping voltage (VC = 92.0 V) during transients |
| VC @ IPPM | 92.0 V - clamped voltage level protects downstream ICs rated ≤ 100 V, e.g., automotive CAN transceivers |
| PPPM | 600 W - defines transient energy handling capacity for 10/1000 μs lightning-induced surges per IEC 61000-4-5 |
| TJ max | +185 °C - enables placement near high-temperature components (e.g., power converters) without derating |
| ESD immunity | ±30 kV contact/air - meets IEC 61000-4-2 Level 4 for robustness against human-body-model discharges |
Pinout & Package
DFN3820A two-terminal surface-mount package with no cathode band (bidirectional). Dimensions: 3.95 mm × 2.18 mm × 0.88 mm (L × W × H), side-wettable flanks, matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (1) | Transient current path terminal | Bidirectional conduction - either terminal serves as anode or cathode depending on polarity of surge event |
| Anode/Cathode (2) | Transient current path terminal | Completes low-impedance clamping path across protected line and ground or rail-to-rail |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Halogen-free, RoHS-compliant, Pb-free | Meets global environmental compliance requirements without compromising thermal or electrical performance |
| Side-wettable flanks | Enables automated optical inspection (AOI) of solder joint quality in high-volume SMT assembly |
| Junction passivation | Prevents degradation under high-temperature bias stress, supporting 15+ year reliability in automotive life cycles |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without moisture sensitivity concerns |
Applications
| Automotive Sensor Signal Protection | Power Rail Surge Suppression |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle body electronics. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between signal line and ground, limiting voltage excursions to ≤ 92.0 V during 600 W surges. Use Value: Prevents latch-up or gate oxide damage in connected microcontrollers and signal-conditioning amplifiers operating at 5 V or 12 V rails. | Use Scenario: Safeguarding 12 V/24 V power distribution networks in ADAS ECUs against ISO 7637-2 pulse 1, 2a, and 5a transients. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing surge energy within 10/1000 μs waveform envelope, clamping rail voltage to 92.0 V. Use Value: Maintains stable supply to critical power management ICs (e.g., PMICs, DC-DC controllers) during cold-crank or alternator load dump events. |
| Automotive CAN Transceiver Interface | Industrial Motor Control Feedback Lines |
Use Scenario: Shielding high-speed CAN FD transceivers (e.g., TCAN1042) from ESD and fast transients induced by nearby relay switching or cable coupling. IC Role / Device Role / Timing Role: Low-capacitance (typ. < 100 pF) bidirectional clamp placed across CANH–CANL differential pair. Use Value: Preserves signal integrity up to 5 Mbps while suppressing ±30 kV ESD pulses per IEC 61000-4-2 without bit errors or receiver saturation. | Use Scenario: Protecting encoder or resolver feedback signals in electric power steering (EPS) or HVAC blower motor drives from commutation noise. IC Role / Device Role / Timing Role: Clamp installed between differential analog feedback line and chassis ground, responding within nanoseconds to sub-microsecond spikes. Use Value: Eliminates position reporting glitches caused by >1 kV transients, ensuring functional safety compliance (ISO 26262 ASIL-B). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-HF | DO-214AC package, unidirectional, VBR = 71.1–78.6 V, VC = 103 V @ 5.8 A, RθJA ≈ 100 °C/W | Requires polarity-aware layout; higher clamping voltage reduces margin for 68 V systems | Select when board space allows larger package and unidirectional protection suffices |
| SMCJ64A-QH | DO-214AB package, unidirectional, VBR = 71.1–78.6 V, VC = 103 V @ 11.3 A, PPPM = 1500 W | Higher power rating but 7.1 mm × 6.2 mm footprint incompatible with DFN-constrained layouts | Choose only if surge energy exceeds 600 W and PCB area permits larger case |
Compared with SMAJ64A-HF and SMCJ64A-QH, the T6N68CAHM3/H offers AEC-Q101 qualification, bidirectional symmetry, compact DFN3820A footprint, and lower clamping voltage (92.0 V), making it uniquely suitable for space-constrained, high-reliability automotive signal-line protection where polarity independence and thermal robustness are mandatory.
Availability
T6N68CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interface protection, CAN bus ESD hardening, and industrial motor feedback line safeguarding requiring stable component supply across multi-year production programs.
Supply support for T6N68CAHM3/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 T6N68CAHM3/H belongs to Vishay's PAR® Transient Voltage Suppressor family, engineered specifically for high-temperature, high-surge automotive environments where AEC-Q101 compliance, low-profile packaging, and precise clamping performance are essential.
FAQ
What is the breakdown voltage tolerance of the T6N68CAHM3/H?
The T6N68CAHM3/H has a ±5 % breakdown voltage tolerance, confirmed by its "CA" suffix per Vishay's ordering nomenclature. Its VBR range is 64.6 V (min) to 71.4 V (max) at 1.0 mA test current, with typical value 68.0 V. This tight tolerance ensures consistent clamping behavior across production lots and supports robust design margins in automotive voltage rails.
Is the T6N68CAHM3/H suitable for bidirectional signal line protection?
Yes, the T6N68CAHM3/H is explicitly bidirectional, as indicated by the "CA" designation (C = ±5 %, A = bidirectional) in its part number. It provides symmetrical clamping for AC-coupled or differential interfaces like CAN, LIN, or RS-485 without requiring polarity-aware routing. No cathode band marking is present, simplifying layout and reducing assembly error risk.
Does the T6N68CAHM3/H meet automotive qualification standards?
Yes, the T6N68CAHM3/H is AEC-Q101 qualified, as confirmed by its "HM3" suffix (H = AEC-Q101 qualified, M3 = halogen-free/RoHS/Pb-free). It operates reliably from –65 °C to +185 °C junction temperature and passes JEDEC JESD201 Class 2 whisker testing, fulfilling requirements for under-hood and safety-critical automotive modules.
What is the clamping voltage of the T6N68CAHM3/H at its rated peak pulse current?
The T6N68CAHM3/H clamps to 92.0 V at its rated peak pulse current of 6.5 A (10/1000 μs waveform), per Vishay Document Number 98489. This VC value defines the maximum voltage imposed on protected circuitry during surge events and is critical for ensuring compatibility with downstream ICs rated for ≤ 100 V operation.
Can the T6N68CAHM3/H be used in high-density PCB layouts?
Yes, the T6N68CAHM3/H uses the DFN3820A package (3.95 mm × 2.18 mm × 0.88 mm), offering one of the lowest profiles (0.88 mm typical height) among AEC-Q101 TVS diodes. Its side-wettable flanks support AOI verification, and its compact size enables placement directly at connector or IC entry points without consuming excessive board area.
T6N68CAHM3/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):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- 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
T6N68CAHM3/H FAQ
1.How can I place an order for T6N68CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for T6N68CAHM3/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 T6N68CAHM3/H reliable?
The price and inventory of T6N68CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T6N68CAHM3/H is usually 5 days.
3.What payment methods are accepted for T6N68CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T6N68CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T6N68CAHM3/H?
T6N68CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T6N68CAHM3/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 T6N68CAHM3/H?
For technical support, including T6N68CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T6N68CAHM3/H requirements.
6.How does Aetrix verify that T6N68CAHM3/H is sourced from the original manufacturer or authorized distributors?
All T6N68CAHM3/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 T6N68CAHM3/H meets industry standards.
7.What is the process for return or replacement of T6N68CAHM3/H?
All T6N68CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with T6N68CAHM3/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 T6N68CAHM3/H part is unused and in its original packaging.
Return procedure for T6N68CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T6N68CAHM3/H Tags
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