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Renesas NNCD7.5C-T1-A
- Part No.:
- NNCD7.5C-T1-A
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
NNCD7.5C-T1-A.pdf
- Description:
- NNCD7.5C-T1-A - ELECTROSTATIC DI
- Quantity:
- Payment:
- Shipping:
Inventory:165,000
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Product details
Overview
NNCD7.5C-T1-A from Renesas Electronics is a 150 mW electrostatic discharge (ESD) noise clipping diode in an ultra-super-mini-mold 2-pin package, with a breakdown voltage range of 7.03–7.87 V, dynamic impedance ≤30 Ω at 5 mA, 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 against transient overvoltage events.
For engineers reviewing the NNCD7.5C-T1-A datasheet, NNCD7.5C-T1-A pinout, NNCD7.5C-T1-A application, or NNCD7.5C-T1-A equivalent, key selection criteria include its 4.0 V clamping voltage at 1 A, 90 pF capacitance at 0 V, 85 W surge reverse power rating (10 µs pulse), and suitability for low-capacitance signal-line protection in consumer and office electronics.
Technical Context
The NNCD7.5C-T1-A operates as a bidirectional silicon avalanche diode optimized for fast-response ESD suppression on data and control lines. Its low dynamic impedance (≤30 Ω) ensures effective voltage clamping during 8/20 µs transients, while its 90 pF junction capacitance minimizes signal distortion in high-speed interfaces up to ~10 MHz.
Designed for IEC 1000-4-2 Level 4 compliance (±30 kV contact discharge), it delivers robust protection without requiring series resistance or additional filtering. The device functions within –55 °C to +150 °C storage temperature range and is rated for 150 mW steady-state power dissipation at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 7.03–7.87 V at 5 mA - defines minimum trigger threshold for ESD clamping activation |
| Clamping Voltage | 4.0 V at 1 A - maximum voltage seen by protected circuit during 30 kV ESD event |
| Junction Capacitance | 90 pF at 0 V, 1 MHz - enables use on low-speed digital lines without signal integrity loss |
| Surge Reverse Power | 85 W (10 µs pulse) - supports single-event transient energy absorption without failure |
| ESD Endurance | ≥30 kV per IEC 1000-4-2 - meets industrial-grade contact discharge immunity requirement |
| Power Dissipation | 150 mW at TA = 25 °C - sets thermal derating limit for continuous operation |
| Junction Temp Limit | 150 °C - constrains PCB layout and trace width for thermal management |
Pinout & Package
Package: Ultra Super Mini Mold (USMM), 2-pin surface-mount, dimensions 2.1 × 1.3 × 0.75 mm (L × W × H), cathode marked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/line side terminal | Connected to signal line under protection; conducts during negative transients |
| Cathode | Reference/ground side terminal | Connected to system ground or reference plane; conducts during positive transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD clamping | Protects both polarities of transient surges without external polarity configuration |
| Low clamping voltage | 4.0 V at 1 A ensures downstream ICs remain below absolute maximum ratings during ESD |
| Ultra-low profile package | 0.75 mm height enables routing under connectors and dense board layouts |
| High surge power tolerance | 85 W peak surge capacity handles repetitive or single-event IEC-compliant discharges |
| Stable capacitance vs. voltage | 90 pF at 0 V with minimal variation across operating bias supports consistent signal timing |
Applications
| Parallel Interface Protection | CD-ROM Connector Shielding |
|---|---|
Use Scenario: Parallel printer or scanner cable interface exposed to handling-induced ESD in office environments. IC Role / Device Role / Timing Role: Clamping diode placed between signal pins and chassis ground to shunt ESD current before reaching host controller. Use Value: Prevents latch-up or gate oxide damage in microcontroller I/O buffers by limiting transient voltage to ≤4.0 V. | Use Scenario: External CD-ROM drive connected via ribbon cable to desktop PC motherboard. IC Role / Device Role / Timing Role: ESD suppressor mounted at connector edge to protect IDE bus signals (e.g., /IOR, /IOW, D0–D7). Use Value: Maintains signal integrity with only 90 pF loading while surviving ≥30 kV contact discharge per IEC 1000-4-2. |
| Peripheral Data Line Guard | Consumer Audio/Video Port Protection |
Use Scenario: PDA synchronization cable or game controller interface subjected to frequent plugging/unplugging. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor on data and strobe lines to absorb human-body-model discharges. Use Value: Eliminates need for discrete RC filters by combining low capacitance and sub-5 V clamping in one passive component. | Use Scenario: RCA or S-video input on TV or set-top box exposed to static charge from user interaction. IC Role / Device Role / Timing Role: Signal-line protector on analog video paths to prevent ESD-induced pixel corruption or audio pop. Use Value: Provides 30 kV immunity without degrading 10 MHz video bandwidth due to stable 90 pF capacitance. |
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, 5.5 V working voltage, 12 pF typical capacitance per line | Targets multi-line USB/UART protection; lower capacitance but higher channel count | Choose for space-constrained multi-signal protection where <15 pF loading is critical |
| Vishay SMAJ7.5A | Unidirectional, 7.5 V standoff, 125 W peak power, DO-214AC package (larger footprint) | Used in DC power rail protection; lacks bidirectional symmetry for signal lines | Choose only for unidirectional supply-line clamping where board area allows SMA package |
Compared with NNCD7.5C-T1-A, the NUP4105MR6T1G offers lower capacitance and integrated multi-line protection but requires different layout and biasing, while the SMAJ7.5A provides higher surge rating but cannot replace NNCD7.5C-T1-A on bidirectional signal paths without redesign.
Availability
NNCD7.5C-T1-A is available at Aetrix Electronics and suitable for parallel interface protection, CD-ROM connector shielding, and peripheral data line guard applications requiring stable component supply and long-term obsolescence management.
Supply support for NNCD7.5C-T1-A 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 Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
The NNCD series was developed by Renesas (formerly NEC) specifically for cost-effective, surface-mount ESD protection of external I/O interfaces in standard-grade consumer and office equipment.
FAQ
What is the maximum clamping voltage of the NNCD7.5C-T1-A during an ESD event?
The NNCD7.5C-T1-A exhibits a maximum clamping voltage of 4.0 V at 1 A test current, measured under IEC 1000-4-2 surge conditions. This value ensures protected circuits remain within safe operating limits. The NNCD7.5C-T1-A achieves this performance using silicon avalanche structure with low dynamic impedance, and its clamping behavior is verified across production lots per Renesas' quality control standards.
Is the NNCD7.5C-T1-A suitable for high-speed data lines like USB 2.0?
No, the NNCD7.5C-T1-A is not recommended for USB 2.0 or other >480 Mbps interfaces due to its 90 pF junction capacitance, which would degrade signal integrity and cause eye diagram closure. The NNCD7.5C-T1-A is optimized for low-to-medium speed lines such as parallel ports, IDE, and legacy audio/video signals where bandwidth requirements are ≤10 MHz.
Does the NNCD7.5C-T1-A require external biasing or series resistance?
No, the NNCD7.5C-T1-A operates passively as a bidirectional clamp and requires no external biasing, pull-up/down resistors, or series current-limiting components. Its design allows direct placement between signal and ground, making the NNCD7.5C-T1-A ideal for minimal-footprint, zero-component-count ESD protection in space-constrained layouts.
What is the thermal derating behavior of the NNCD7.5C-T1-A above 25 °C ambient?
The NNCD7.5C-T1-A has a linear thermal derating curve: power dissipation decreases from 150 mW at 25 °C to zero at 150 °C junction temperature. Derating follows the curve shown in Figure 1 of the Renesas datasheet D11771EJ2V0DS00, with approximately 1.25 mW/°C reduction above 25 °C ambient. Proper PCB copper area must be allocated to maintain NNCD7.5C-T1-A junction temperature within spec.
Can the NNCD7.5C-T1-A be used in automotive applications?
The NNCD7.5C-T1-A is rated for Standard quality grade per Renesas documentation and is intended for computers, office equipment, and consumer electronics-not automotive systems. It lacks AEC-Q200 qualification, extended temperature screening, or PPAP documentation. For automotive ESD protection, Renesas offers dedicated AEC-Q200-qualified alternatives; the NNCD7.5C-T1-A should not be deployed in vehicle ECUs or infotainment interfaces.
NNCD7.5C-T1-A 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):
- 7.03V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 4pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Ultra Super Mini Mold
NNCD7.5C-T1-A FAQ
1.How can I place an order for NNCD7.5C-T1-A through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD7.5C-T1-A 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 NNCD7.5C-T1-A reliable?
The price and inventory of NNCD7.5C-T1-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NNCD7.5C-T1-A is usually 5 days.
3.What payment methods are accepted for NNCD7.5C-T1-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD7.5C-T1-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD7.5C-T1-A?
NNCD7.5C-T1-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD7.5C-T1-A 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 NNCD7.5C-T1-A?
For technical support, including NNCD7.5C-T1-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD7.5C-T1-A requirements.
6.How does Aetrix verify that NNCD7.5C-T1-A is sourced from the original manufacturer or authorized distributors?
All NNCD7.5C-T1-A 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 NNCD7.5C-T1-A meets industry standards.
7.What is the process for return or replacement of NNCD7.5C-T1-A?
All NNCD7.5C-T1-A units undergo pre-shipment inspection (PSI). If there is an issue with NNCD7.5C-T1-A, 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 NNCD7.5C-T1-A part is unused and in its original packaging.
Return procedure for NNCD7.5C-T1-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD7.5C-T1-A 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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