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Renesas NNCD6.8LG-T1-AT
- Part No.:
- NNCD6.8LG-T1-AT
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NNCD6.8LG-T1-AT.pdf
- Description:
- NNCD6.8LG-T1-AT - LOW CAPACITANC
- Quantity:
- Payment:
- Shipping:
Inventory:13,271
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Product details
Overview
NNCD6.8LG-T1-AT from Renesas Electronics is a low-capacitance, quad-channel ESD protection diode in a 5-pin Mini Mold package with common-anode configuration. It delivers 6.2–7.1 V breakdown voltage, ≤7 pF capacitance at 0 V, ≤30 Ω dynamic impedance, ≤2 µA reverse leakage, and 8 kV contact ESD immunity per IEC 1000-4-2 - optimized for USB 2.0 data line protection.
For engineers reviewing the NNCD6.8LG-T1-AT datasheet, NNCD6.8LG-T1-AT pinout, NNCD6.8LG-T1-AT application, or NNCD6.8LG-T1-AT equivalent, this device offers verified high-speed interface protection where low signal distortion, compact layout, and repeatable ESD robustness are critical design requirements.
Technical Context
This quad ESD diode implements a common-anode topology with four independent cathodes (K1–K4) tied to a shared anode (A), enabling simultaneous clamping of four signal lines to ground via external series resistors or direct connection. Each channel operates independently under transient stress while sharing thermal mass within the single 5-pin package.
Designed specifically for high-frequency data buses, its 7 pF typical capacitance (measured at VR = 0 V, f = 1 MHz) and sub-30 Ω dynamic impedance ensure minimal insertion loss and signal integrity degradation up to 480 Mbps. The 2 W surge rating (10 µs pulse) supports multiple ESD events without parametric shift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 6.2–7.1 V (min/max at IT = 5 mA); defines clamping onset threshold for reliable overvoltage suppression on high-speed lines |
| Dynamic Impedance | ≤30 Ω (at IT = 5 mA); ensures low-voltage overshoot during fast ESD transients (e.g., 8 kV contact discharge) |
| Reverse Capacitance | 7 pF typ. (VR = 0 V, f = 1 MHz); preserves signal integrity on USB 2.0 differential pairs without excessive loading |
| ESD Withstand | 8 kV contact discharge per IEC 1000-4-2; validated for end-equipment compliance in consumer and industrial interfaces |
| Power Dissipation | 200 mW total (TA = 25°C); supports continuous operation in ambient temperatures up to 125°C with derating |
| Surge Rating | 2 W (t = 10 µs, single pulse); handles repetitive ESD events without permanent degradation |
Pinout & Package
Package: 5-pin Mini Mold (2.8 × 2.9 × 1.1–1.4 mm, lead pitch 0.65 mm), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 (K1) | ESD clamp output for first protected signal line (e.g., USB D+) |
| 2 | Anode (A) | Common return path to system ground or TVS bias rail |
| 3 | Cathode 2 (K2) | ESD clamp output for second protected signal line (e.g., USB D−) |
| 4 | Cathode 3 (K3) | ESD clamp output for third signal line (e.g., VBUS sense or ID line) |
| 5 | Cathode 4 (K4) | ESD clamp output for fourth signal line (e.g., auxiliary control or debug line) |
Key Features
| Feature | Design Value |
|---|---|
| Quad Common-Anode Topology | Enables compact, symmetrical routing of four high-speed signals with shared ground reference and minimized loop inductance |
| 7 pF Capacitance @ 0 V | Meets USB 2.0 eye diagram mask requirements without equalization or pre-emphasis compensation |
| 8 kV IEC 1000-4-2 Contact ESD | Validated for full-system ESD certification without additional board-level shielding or filtering |
| 200 mW Total Power Rating | Supports sustained operation in thermally constrained portable enclosures with natural convection cooling |
Applications
| USB 2.0 Interface Protection | Mobile Device Charging Port |
|---|---|
Use Scenario: Protecting D+/D− differential pair and VBUS/ID lines in host/peripheral USB ports against user-handling ESD events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: Maintains 480 Mbps signaling fidelity while absorbing ≥8 kV contact discharges without latch-up or parameter drift. | Use Scenario: ESD hardening of micro-USB or USB-C receptacles in smartphones, tablets, and power banks. IC Role / Device Role / Timing Role: Quad-channel clamping diode array providing coordinated protection across all functional pins in space-constrained layouts. Use Value: Eliminates need for four discrete diodes, reducing BOM count, PCB area, and assembly cost by >60% versus discrete solutions. |
| Industrial Human-Machine Interface | Embedded Peripheral Expansion Port |
Use Scenario: Safeguarding RS-485/USB-based touch panel or display interface cables exposed to factory-floor ESD. IC Role / Device Role / Timing Role: Signal-line transient protector with grounded common anode, compatible with 3.3 V or 5 V logic domains. Use Value: Prevents firmware lockup or sensor readout corruption caused by ESD-induced bus contention or false edge detection. | Use Scenario: Protecting FPGA or MCU expansion headers (e.g., GPIO, I²C, UART) used for modular peripheral attachment. IC Role / Device Role / Timing Role: Multi-line ESD guard for unshielded, user-accessible connectors subject to frequent plugging/unplugging. Use Value: Extends field reliability beyond 50,000 mating cycles without performance degradation or leakage increase. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DRYR | Lower capacitance (0.7 pF), but only 4 kV IEC 1000-4-2 rating; uses different package (X2SON-6) | Better for >1 Gbps interfaces (e.g., USB 3.0 SS), unsuitable for 8 kV system-level ESD compliance | Select when ultra-low capacitance outweighs ESD robustness; verify layout compatibility with 6-pin footprint |
| ESDA6V1SC6 | Same 8 kV rating and 5-pin SOT-666 package, but higher capacitance (12 pF) and no common-anode architecture | Requires individual anode routing; less optimal for tightly coupled differential pairs like USB D+/D− | Prefer when existing layout uses discrete-cathode topology or when lower cost is prioritized over layout efficiency |
Compared with TPD4E001DRYR and ESDA6V1SC6, the NNCD6.8LG-T1-AT uniquely balances 8 kV ESD immunity, 7 pF capacitance, and quad common-anode integration - making it the most suitable choice for space-constrained, certified USB 2.0 designs requiring zero-compromise transient protection.
Availability
NNCD6.8LG-T1-AT is available at Aetrix Electronics and suitable for USB 2.0 interface protection, mobile device charging port hardening, and industrial HMI signal line safeguarding requiring stable component supply across production lifecycles.
Supply support for NNCD6.8LG-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 leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT applications.
The NNCD6.8LG-T1-AT belongs to Renesas' legacy low-capacitance ESD diode family, engineered specifically for high-speed digital interface protection in consumer and industrial equipment where signal integrity and compact packaging are essential.
FAQ
What is the maximum operating temperature for NNCD6.8LG-T1-AT?
The NNCD6.8LG-T1-AT has a specified storage temperature range of –55°C to +150°C and a maximum junction temperature of 150°C. Its power dissipation derates linearly above 25°C ambient, supporting reliable operation up to 125°C ambient when mounted on standard FR-4 with 1 cm² copper pour. Thermal performance is validated per Figure 4 (transient thermal impedance) in the original Renesas datasheet D12785EJ1V0DS00.
Does NNCD6.8LG-T1-AT support both contact and air-gap ESD testing per IEC 61000-4-2?
Yes, the NNCD6.8LG-T1-AT is rated for 8 kV contact discharge per IEC 61000-4-2. While the datasheet explicitly confirms contact discharge performance, air-gap testing is not separately specified. System-level validation is recommended for air-gap scenarios, as clamping behavior depends on PCB layout, grounding, and proximity to other components - all of which influence field coupling into the NNCD6.8LG-T1-AT's protected lines.
Can NNCD6.8LG-T1-AT be used for USB 3.0 SuperSpeed differential pairs?
No, the NNCD6.8LG-T1-AT is not recommended for USB 3.0 SuperSpeed (5 Gbps) lanes. Its 7 pF capacitance introduces unacceptable insertion loss and return loss degradation above 500 MHz. USB 3.0 requires ESD protectors with ≤0.5 pF capacitance (e.g., TPD4E001DRYR). The NNCD6.8LG-T1-AT is qualified and optimized exclusively for USB 2.0 (480 Mbps) and lower-speed interfaces such as UART, I²C, and SPI.
What is the leakage current specification for NNCD6.8LG-T1-AT at 3.3 V reverse bias?
At VR = 3.3 V and TA = 25°C, the NNCD6.8LG-T1-AT exhibits ≤2 µA maximum reverse leakage current per channel, as specified in the "Electrical Characteristics" table of Renesas document D12785EJ1V0DS00. This low leakage ensures negligible impact on bus pull-up/pull-down networks and maintains valid logic thresholds in 3.3 V systems using the NNCD6.8LG-T1-AT.
Is NNCD6.8LG-T1-AT compliant with RoHS and REACH regulations?
Yes, the NNCD6.8LG-T1-AT is RoHS-compliant (lead-free, homogeneous material level) and meets REACH SVHC requirements, as confirmed by Renesas Electronics' environmental compliance documentation. The 5-pin Mini Mold package uses matte tin lead finish and halogen-free molding compound. Full substance declarations and test reports are available through Renesas' official environmental portal upon customer request for the NNCD6.8LG-T1-AT.
NNCD6.8LG-T1-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.5V (Max)
- Voltage - Breakdown (Min):
- 6.2V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 2W
- Power Line Protection:
- No
- Applications:
- Telecom, USB
- Capacitance @ Frequency:
- 7pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-Mini Mold
NNCD6.8LG-T1-AT FAQ
1.How can I place an order for NNCD6.8LG-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD6.8LG-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 NNCD6.8LG-T1-AT reliable?
The price and inventory of NNCD6.8LG-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 NNCD6.8LG-T1-AT is usually 5 days.
3.What payment methods are accepted for NNCD6.8LG-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD6.8LG-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD6.8LG-T1-AT?
NNCD6.8LG-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD6.8LG-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 NNCD6.8LG-T1-AT?
For technical support, including NNCD6.8LG-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD6.8LG-T1-AT requirements.
6.How does Aetrix verify that NNCD6.8LG-T1-AT is sourced from the original manufacturer or authorized distributors?
All NNCD6.8LG-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 NNCD6.8LG-T1-AT meets industry standards.
7.What is the process for return or replacement of NNCD6.8LG-T1-AT?
All NNCD6.8LG-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with NNCD6.8LG-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 NNCD6.8LG-T1-AT part is unused and in its original packaging.
Return procedure for NNCD6.8LG-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD6.8LG-T1-AT Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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D12V0L1B2LP-7B
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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