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Renesas NNCD6.8C-T1-AT
- Part No.:
- NNCD6.8C-T1-AT
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
NNCD6.8C-T1-AT.pdf
- Description:
- NNCD6.8C-T1-AT - ELECTROSTATIC D
- Quantity:
- Payment:
- Shipping:
Inventory:125,038
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Product details
Overview
NNCD6.8C-T1-AT from Renesas Electronics is an electrostatic discharge (ESD) noise clipping diode in a 2-pin Ultra Super Mini Mold package, rated for 150 mW power dissipation, with a breakdown voltage range of 6.44 V to 7.17 V at 5 mA, dynamic impedance ≤30 Ω, and ESD endurance ≥30 kV per IEC 1000-4-2. It protects external interface circuits such as parallel ports, CD-ROM connectors, and peripheral cables.
For engineers reviewing the NNCD6.8C-T1-AT datasheet, NNCD6.8C-T1-AT pinout, NNCD6.8C-T1-AT application, or NNCD6.8C-T1-AT equivalent, key selection criteria include clamping voltage performance, low dynamic impedance under transient current, junction temperature limit of 150 °C, and compatibility with ceramic PCB mounting for high-frequency ESD suppression.
Technical Context
This device operates as a bidirectional voltage-clamping diode optimized for fast transient suppression on signal lines. Its low 3.5 V typical clamping voltage at 1 A surge current and 110 pF capacitance at 1 MHz enable effective protection without distorting high-speed digital waveforms.
The diode exhibits non-repetitive surge reverse power handling up to 85 W for 10 µs pulses and maintains stable electrical characteristics across –55 °C to +150 °C storage temperature range. Its ultra-miniature package supports dense PCB layouts in consumer and office equipment interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 6.44 V min to 7.17 V max at 5 mA - defines minimum trigger threshold for ESD clamping activation |
| Dynamic Impedance (ZZ) | ≤30 Ω at 5 mA - ensures low-voltage overshoot during fast transients |
| Clamping Voltage (VC) | 3.5 V typ at 1 A - limits peak line voltage during IEC 1000-4-2 contact discharge |
| Capacitance (CT) | 110 pF at 1 MHz, 0 V - preserves signal integrity on low-to-moderate speed interfaces |
| Power Dissipation (P) | 150 mW at TA = 25 °C - sets continuous thermal operating limit on standard FR4 or ceramic PCB |
| ESD Withstand | ≥30 kV per IEC 1000-4-2 - certifies robustness against human-body-model and contact-discharge events |
| Junction Temperature (Tj) | 150 °C max - constrains maximum allowable die temperature under sustained stress |
Pinout & Package
Package: 2-pin Ultra Super Mini Mold (USM), dimensions 2.1 × 1.3 × 0.75 mm, cathode indicated by marking band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected signal line; conducts during positive ESD transients |
| Cathode | Current exit point during forward conduction; marked side | Connected to ground or reference rail; completes clamping path for both polarities via series configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD clamping | Protects AC-coupled or unidirectional signal lines without polarity constraints |
| Low clamping voltage | 3.5 V typical at 1 A enables safe operation of 5 V logic and mixed-voltage interfaces |
| Ultra-low capacitance | 110 pF minimizes signal rise-time degradation on parallel bus and legacy peripheral lines |
| High surge power rating | 85 W non-repetitive pulse handling accommodates worst-case IEC 1000-4-2 waveform energy |
| Miniature USM package | 2.1 × 1.3 mm footprint supports high-density layout in space-constrained consumer enclosures |
Applications
| Parallel Port Protection | CD-ROM Interface Protection |
|---|---|
Use Scenario: Parallel printer or scanner cable connection exposed to handling-induced ESD in office environments. IC Role / Device Role / Timing Role: Voltage-clamping diode placed between data lines and chassis ground. Use Value: Prevents latch-up or gate oxide damage in host controller ICs by limiting transient voltage to ≤3.5 V. |
Use Scenario: External CD-ROM drive connected via ribbon cable to desktop PC motherboard. IC Role / Device Role / Timing Role: ESD suppressor on each data line (D0–D7) and control signals (STROBE, ACK). Use Value: Maintains 110 pF capacitance to avoid skew or reflection on 500 kHz–2 MHz ATA-style timing margins. |
| Peripheral Game Console Interface | Industrial Panel PC Expansion Slot |
Use Scenario: TV game console cartridge slot subject to repeated insertion/removal and finger contact. IC Role / Device Role / Timing Role: Clamping diode on address/data bus lines adjacent to edge connector. Use Value: Withstands ≥30 kV contact discharge while adding negligible loading to 8-bit multiplexed bus signals. |
Use Scenario: Expansion header on industrial panel PC used for custom I/O modules in factory settings. IC Role / Device Role / Timing Role: Signal-line protector on GPIO, UART, or parallel control pins. Use Value: Operates reliably from –55 °C to +150 °C junction temperature, supporting extended thermal cycling in enclosed cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | Quad-channel SOT-563 package; 12 V breakdown; 15 pF per channel; 30 kV HBM rating | Designed for multi-line protection; higher integration but larger footprint and fixed 12 V clamping | Preferred when protecting ≥4 adjacent lines with shared ground; not suitable for single-line optimization or <7 V clamping needs |
| Vishay ESDE05A1U2B | Single-line SOD-523; 5.5 V breakdown; 0.5 pF; 30 kV IEC 61000-4-2 rating | Ultra-low capacitance ideal for USB 2.0 or HDMI; lower power rating (100 W peak) and smaller thermal mass | Best for high-speed serial links where signal integrity dominates; less robust than NNCD6.8C-T1-AT for high-energy parallel bus surges |
Compared with NUP4105MR6T1G and ESDE05A1U2B, the NNCD6.8C-T1-AT offers superior energy handling (85 W surge) and optimal clamping (3.5 V) for 5 V parallel interfaces, while maintaining a compact 2-pin form factor unmatched by quad-channel alternatives and more thermally robust than ultra-low-capacitance SOD-523 devices.
Availability
NNCD6.8C-T1-AT is available at Aetrix Electronics and suitable for parallel port protection, CD-ROM interface hardening, and peripheral game console interface ESD mitigation requiring stable component supply and long-term obsolescence management.
Supply support for NNCD6.8C-T1-AT 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
Renesas Electronics Corporation is a global semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial, automotive, and consumer systems.
The NNCD6.8C-T1-AT belongs to Renesas' ESD noise clipping diode family designed specifically for cost-sensitive, high-volume interface protection in Standard-grade applications including office equipment and consumer peripherals.
FAQ
What is the maximum clamping voltage of the NNCD6.8C-T1-AT under IEC 1000-4-2 test conditions?
The NNCD6.8C-T1-AT achieves a typical clamping voltage of 3.5 V at 1 A surge current, measured per IEC 1000-4-2 waveform. This value reflects its ability to limit transient overvoltage on protected lines and is confirmed in the official Renesas datasheet for NNCD6.8C-T1-AT. The clamping performance remains stable across its specified operating temperature range and supports reliable protection of 5 V logic interfaces without exceeding safe voltage thresholds.
Is the NNCD6.8C-T1-AT suitable for use on high-speed USB or HDMI signal lines?
No, the NNCD6.8C-T1-AT is not recommended for USB 2.0 or HDMI due to its 110 pF capacitance at 1 MHz, which would degrade signal integrity and violate eye diagram specifications. The NNCD6.8C-T1-AT is engineered for lower-speed parallel interfaces like printer ports and CD-ROM buses. For high-speed serial links, Renesas and other manufacturers offer specialized low-capacitance ESD diodes-such as sub-1 pF devices-with different architecture and packaging than the NNCD6.8C-T1-AT.
What is the thermal resistance profile of the NNCD6.8C-T1-AT, and how does it affect PCB layout?
The NNCD6.8C-T1-AT has a transient thermal impedance of 833 °C/W (per Fig. 5 in the datasheet), indicating limited heat dissipation capability during repetitive surges. To maintain reliability, designers must mount it on ceramic PCB substrates (e.g., 10 × 7.5 × 0.75 mm) as validated in Renesas' thermal characterization. Use of FR4 without copper pour or thermal vias may cause junction temperature to exceed 150 °C during sustained stress, risking premature failure of the NNCD6.8C-T1-AT.
Does the NNCD6.8C-T1-AT meet RoHS compliance requirements?
Yes, the NNCD6.8C-T1-AT complies with the EU RoHS Directive, as confirmed by Renesas Electronics' environmental documentation and material declarations. Lead-free soldering is supported per J-STD-020 moisture sensitivity level (MSL) guidelines, and the device contains no restricted substances above threshold limits. Customers should verify current compliance status using Renesas' official product change notifications, as the NNCD6.8C-T1-AT falls under the Standard quality grade intended for office and consumer equipment.
Can the NNCD6.8C-T1-AT be used in automotive applications?
No, the NNCD6.8C-T1-AT is classified as a Standard quality grade device per Renesas' quality grading system and is explicitly intended for computers, office equipment, and consumer appliances-not transportation or safety-critical systems. Automotive applications require High Quality grade components with extended temperature range validation, AEC-Q200 qualification, and enhanced reliability testing. Using the NNCD6.8C-T1-AT in automotive contexts violates Renesas' defined usage scope and voids warranty and liability coverage.
NNCD6.8C-T1-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 2-SMD, Gull Wing
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 2V (Max)
- Voltage - Breakdown (Min):
- 6.44V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 3.5pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Ultra Super Mini Mold
NNCD6.8C-T1-AT FAQ
1.How can I place an order for NNCD6.8C-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD6.8C-T1-AT 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 NNCD6.8C-T1-AT reliable?
The price and inventory of NNCD6.8C-T1-AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NNCD6.8C-T1-AT is usually 5 days.
3.What payment methods are accepted for NNCD6.8C-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD6.8C-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD6.8C-T1-AT?
NNCD6.8C-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD6.8C-T1-AT 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 NNCD6.8C-T1-AT?
For technical support, including NNCD6.8C-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD6.8C-T1-AT requirements.
6.How does Aetrix verify that NNCD6.8C-T1-AT is sourced from the original manufacturer or authorized distributors?
All NNCD6.8C-T1-AT 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 NNCD6.8C-T1-AT meets industry standards.
7.What is the process for return or replacement of NNCD6.8C-T1-AT?
All NNCD6.8C-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with NNCD6.8C-T1-AT, 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 NNCD6.8C-T1-AT part is unused and in its original packaging.
Return procedure for NNCD6.8C-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD6.8C-T1-AT Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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