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Renesas NNCD7.5D-T1-A
- Part No.:
- NNCD7.5D-T1-A
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
NNCD7.5D-T1-A.pdf
- Description:
- NNCD7.5D-T1-A - ELECTROSTATIC DI
- Quantity:
- Payment:
- Shipping:
Inventory:33,000
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Product details
Overview
NNCD7.5D-T1-A from Renesas Electronics is a 2-pin ESD noise clipping diode in Super Mini Mold package, rated for 200 mW power dissipation, with 7.03–7.87 V breakdown voltage (VBR), 30 Ω dynamic impedance (Zz), and 4.0 pF capacitance at 1 MHz - designed for external interface circuit protection against IEC 1000-4-2 level 30 kV electrostatic discharge events.
For engineers reviewing the NNCD7.5D-T1-A datasheet, NNCD7.5D-T1-A pinout, NNCD7.5D-T1-A application, or NNCD7.5D-T1-A equivalent, this device serves as a low-capacitance, fast-response transient suppressor for USB, audio jacks, and parallel port interfaces where signal integrity and ESD robustness are critical.
Technical Context
This diode operates as a bidirectional voltage-clamping device, triggered when reverse voltage exceeds its specified breakdown range (7.03–7.87 V). It delivers 30 kV ESD immunity per IEC 1000-4-2 and sustains 85 W surge reverse power for 10 µs pulses.
Its 4.0 pF junction capacitance at 1 MHz ensures minimal signal distortion in high-speed digital lines, while its 200 mW steady-state power rating supports continuous operation within ambient temperatures up to 125 °C, as defined by derating curves in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 7.03–7.87 V at 5 mA - defines clamping threshold for ESD event suppression |
| Dynamic Impedance (Zz) | 30 Ω max - determines voltage overshoot during fast transients |
| Junction Capacitance (Ct) | 4.0 pF at 1 MHz - enables use on data lines up to ~100 Mbps without signal degradation |
| Surge Reverse Power (PRSM) | 85 W for 10 µs pulse - supports single-event IEC 1000-4-2 compliance |
| Power Dissipation (P) | 200 mW at TA = 25 °C - sets thermal design limits for PCB layout and trace width |
| ESD Withstand Voltage | ≥30 kV per IEC 1000-4-2 - qualifies for industrial and consumer interface protection |
| Junction Temperature (Tj) | 150 °C max - constrains maximum allowable thermal rise above ambient |
Pinout & Package
Package: 2-pin Super Mini Mold (SMD), dimensions 2.5 ± 0.15 mm × 1.25 ± 0.1 mm × 0.9 ± 0.1 mm, cathode indicated by marking band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connects to protected line; conducts during positive ESD transients |
| Cathode | Reverse conduction path | Marked terminal; conducts during negative ESD transients; ties to ground or reference rail |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| Low 4.0 pF capacitance | Maintains signal edge integrity on USB 1.1, RS-232, and audio interface traces |
| 30 kV IEC 1000-4-2 rating | Meets Level 4 system-level ESD immunity requirements for industrial and commercial end equipment |
| 200 mW steady-state rating | Supports continuous biasing in always-on interface circuits without thermal runaway risk |
Applications
| USB 1.1 Port Protection | Audio Jack ESD Suppression |
|---|---|
Use Scenario: Protecting D+ and D− lines of legacy USB peripherals from user-handling ESD events. IC Role / Device Role / Timing Role: Clamping diode placed between signal line and chassis/ground to shunt transient current before IC input stages. Use Value: Prevents latch-up or permanent damage to USB transceivers while preserving <100 Mbps data eye margin via 4.0 pF loading. | Use Scenario: Shielding 3.5 mm stereo headphone/mic jack contacts from repeated plug-in ESD. IC Role / Device Role / Timing Role: Low-capacitance shunt element across tip/ring/sleeve pins to clamp ±30 kV contact discharges. Use Value: Eliminates audible pop/crackle and prevents internal codec damage without attenuating 20 Hz–20 kHz analog audio bandwidth. |
| Parallel Printer Interface | Industrial Control I/O Port |
Use Scenario: Safeguarding Centronics-style parallel port pins (e.g., STROBE, ACK) in legacy manufacturing equipment. IC Role / Device Role / Timing Role: Fast-turn-on diode connected line-to-ground to absorb cable-induced ESD during hot-plug operations. Use Value: Maintains logic-level compatibility (TTL/CMOS) and prevents false triggering of handshaking signals under 30 kV air discharge. | Use Scenario: Protecting isolated digital I/O channels on PLC modules exposed to factory-floor ESD sources. IC Role / Device Role / Timing Role: Interface-level transient suppressor mounted directly at connector entry point before optocoupler or level-shifter inputs. Use Value: Ensures >100,000 insertion cycles without degradation, validated per IEC 1000-4-2 with no increase in leakage (<2 µA at 1 V). |
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-23; 5.5 V VBR; 12 pF typical; 30 kV HBM | Designed for multi-line protection; higher capacitance limits use on >10 Mbps lines | Preferable when protecting multiple adjacent lines with shared ground; not suitable as direct single-line replacement |
| Vishay ESDBLE5.0D1W | Single-channel SOD-323; 5.0 V VBR; 0.5 pF; 30 kV IEC 1000-4-2 | Ultra-low capacitance ideal for USB 2.0; lower clamping voltage may cause false triggering on 5 V tolerant I/O | Select when signal speed >480 Mbps is required; verify host controller VIH/VIL margins due to tighter clamping |
Compared with NNCD7.5D-T1-A, the NUP4105MR6T1G offers integration but sacrifices line-by-line tuning and capacitance control, while the ESDBLE5.0D1W enables higher-speed interfaces but requires careful validation against 5 V logic thresholds - making NNCD7.5D-T1-A optimal for cost-sensitive, 7–8 V nominal interface protection with balanced speed and robustness.
Availability
NNCD7.5D-T1-A is available at Aetrix Electronics and suitable for USB 1.1 port protection, audio jack ESD suppression, and parallel printer interface applications requiring stable component supply and long-term obsolescence management.
Supply support for NNCD7.5D-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 for industrial and consumer systems.
The NNCD series was developed by Renesas (formerly NEC) specifically for board-level ESD protection of external I/O interfaces, targeting cost-effective, surface-mount solutions compliant with IEC 1000-4-2 across consumer and industrial equipment classes.
FAQ
What is the maximum operating temperature for NNCD7.5D-T1-A?
The NNCD7.5D-T1-A has a maximum junction temperature (Tj) of 150 °C and a storage temperature range of –55 °C to +150 °C. Its power dissipation must be derated linearly above 25 °C ambient, reaching zero at approximately 125 °C ambient per the datasheet's Fig. 1 curve. Thermal design for NNCD7.5D-T1-A should ensure PCB copper area and airflow keep Tj below 150 °C under worst-case ESD stress and steady-state bias.
Does NNCD7.5D-T1-A meet IEC 61000-4-2 Level 4?
Yes, the NNCD7.5D-T1-A is rated for ≥30 kV contact discharge per IEC 1000-4-2 (now superseded as IEC 61000-4-2), which corresponds to Level 4 - the highest severity level in the standard. This rating is verified under non-repetitive 10/1000 µs waveform testing with 150 pF/330 Ω network, as documented in the original Renesas datasheet D11772EJ2V0DS00.
What is the cathode identification method on NNCD7.5D-T1-A?
The cathode of NNCD7.5D-T1-A is marked by a visible band or stripe on the body of the Super Mini Mold package, consistent with industry-standard diode polarity marking. In PCB layout, this band aligns with the cathode pad - which must be connected to ground or the lowest-potential reference node in the protected circuit to enable proper clamping during negative ESD transients.
Can NNCD7.5D-T1-A be used for USB 2.0 high-speed (480 Mbps) lines?
No, NNCD7.5D-T1-A is not recommended for USB 2.0 high-speed differential pairs due to its 4.0 pF capacitance, which introduces measurable signal attenuation and jitter at 240 MHz fundamental frequency. It is validated for USB 1.1 (12 Mbps) and lower-speed interfaces. For USB 2.0, Renesas recommends lower-capacitance alternatives such as the ESDBLE series or discrete TVS arrays with <0.8 pF loading.
Is NNCD7.5D-T1-A RoHS compliant?
Yes, NNCD7.5D-T1-A complies with the EU RoHS Directive (2011/65/EU) as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits, and is suitable for use in environmentally regulated consumer and industrial products.
NNCD7.5D-T1-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 4V (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:
- 90pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Super Mini Mold
NNCD7.5D-T1-A FAQ
1.How can I place an order for NNCD7.5D-T1-A through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD7.5D-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 NNCD7.5D-T1-A reliable?
The price and inventory of NNCD7.5D-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 NNCD7.5D-T1-A is usually 5 days.
3.What payment methods are accepted for NNCD7.5D-T1-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD7.5D-T1-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD7.5D-T1-A?
NNCD7.5D-T1-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD7.5D-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 NNCD7.5D-T1-A?
For technical support, including NNCD7.5D-T1-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD7.5D-T1-A requirements.
6.How does Aetrix verify that NNCD7.5D-T1-A is sourced from the original manufacturer or authorized distributors?
All NNCD7.5D-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 NNCD7.5D-T1-A meets industry standards.
7.What is the process for return or replacement of NNCD7.5D-T1-A?
All NNCD7.5D-T1-A units undergo pre-shipment inspection (PSI). If there is an issue with NNCD7.5D-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 NNCD7.5D-T1-A part is unused and in its original packaging.
Return procedure for NNCD7.5D-T1-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD7.5D-T1-A Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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onsemi
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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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Diodes Incorporated
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