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Renesas NNCD4.3G-T1-A
- Part No.:
- NNCD4.3G-T1-A
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NNCD4.3G-T1-A.pdf
- Description:
- NNCD4.3G-T1-A - ELECTROSTATIC DI
- Quantity:
- Payment:
- Shipping:
Inventory:9,800
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Product details
Overview
NNCD4.3G-T1-A from Renesas Electronics is a quad-channel electrostatic discharge (ESD) noise clipping diode in a 5-pin Mini Mold (SC-74A) package with common anode configuration, featuring a breakdown voltage of 4.01–4.48 V, dynamic impedance ≤130 Ω at 5 mA, reverse leakage ≤10 µA at 1.0 V, capacitance of 180 pF at 1 MHz, 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 in consumer electronics.
For engineers reviewing the NNCD4.3G-T1-A datasheet, NNCD4.3G-T1-A pinout, NNCD4.3G-T1-A application, or NNCD4.3G-T1-A equivalent, key selection criteria include its common-anode quad-diode topology, 30 kV IEC 1000-4-2 ESD rating, 180 pF signal-line capacitance, 130 Ω dynamic impedance, and SC-74A surface-mount footprint for high-density PCB layout.
Technical Context
This device implements four independent silicon PN-junction clipping diodes sharing a single anode terminal, enabling simultaneous bidirectional clamping across four signal lines to ground or supply rails. Its low dynamic impedance ensures rapid voltage clamping during fast ESD transients, while the 180 pF junction capacitance balances protection effectiveness against high-speed signal integrity requirements.
The diode array operates within a –55 °C to +150 °C storage temperature range and supports surge reverse power up to 85 W (10 µs pulse), with thermal resistance optimized for the 5-pin Mini Mold package. It is rated for standard-grade applications including office equipment, audio/video interfaces, and industrial peripherals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 4.01–4.48 V - defines clamping threshold for transient suppression on protected lines |
| Dynamic Impedance (Zz) | ≤130 Ω at 5 mA - ensures low-voltage overshoot during 8/20 µs ESD events |
| Reverse Leakage (IR) | ≤10 µA at 1.0 V - minimizes standby current draw in always-on interface circuits |
| Junction Capacitance (Ct) | 180 pF at 1 MHz - impacts high-frequency signal integrity; suitable for <10 Mbps digital interfaces |
| ESD Withstand Voltage | ≥30 kV per IEC 1000-4-2 Contact Discharge - meets industrial-level ESD immunity requirements |
| Surge Power Rating | 85 W (10 µs pulse) - supports single-event transient energy absorption without failure |
| Package | 5-pin Mini Mold (SC-74A) - enables automated SMT placement and compact board area usage |
Pinout & Package
Package: 5-pin Mini Mold (SC-74A), surface-mount, common-anode quad-diode configuration with 2.9 mm × 1.9 mm footprint and 1.1–1.4 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 (K1) | Clamping path for first protected signal line to common anode |
| 2 | Anode (A) | Shared anode node connected to VCC or ground depending on circuit topology |
| 3 | Cathode 2 (K2) | Clamping path for second protected signal line to common anode |
| 4 | Cathode 3 (K3) | Clamping path for third protected signal line to common anode |
| 5 | Cathode 4 (K4) | Clamping path for fourth protected signal line to common anode |
Key Features
| Feature | Design Value |
|---|---|
| IEC 1000-4-2 ESD robustness | ≥30 kV contact discharge - eliminates need for secondary protection stages in cost-sensitive designs |
| Quad-diode integration | Four independent clamping paths in one SC-74A package - reduces component count and PCB real estate vs discrete diodes |
| Low dynamic impedance | ≤130 Ω - limits voltage overshoot to <6 V during 30 kV ESD event, protecting downstream logic |
| Controlled junction capacitance | 180 pF - preserves signal rise/fall times in parallel interfaces and low-speed data buses |
| Standard quality grade | Rated for computers, office equipment, and consumer audio/video - validated for non-safety-critical commercial use |
Applications
| Parallel Interface Protection | CD-ROM Drive Connector |
|---|---|
Use Scenario: Protecting 25-pin DB-25 parallel port signals (STROBE, ACK, BUSY, etc.) from ESD during cable hot-plug or handling. IC Role / Device Role / Timing Role: Quad-clamp diode array providing bidirectional voltage limiting on four critical control lines relative to common reference. Use Value: Prevents latch-up or damage to microcontroller GPIOs or ASIC interface logic by clamping transients to ≤6 V peak. | Use Scenario: Shielding CD-ROM drive ribbon cable connections from user-handling ESD in desktop PCs and multimedia systems. IC Role / Device Role / Timing Role: Common-anode ESD suppressor placed at connector entry point, shunting transients from DATA[0:3], IRQ, and RESET lines. Use Value: Maintains signal fidelity under 10 Mbps burst rates while surviving repeated 30 kV contact discharges per IEC standard. |
| Printer Peripheral Interface | TV Game Console I/O Port |
Use Scenario: Safeguarding bi-directional printer handshake lines (SELECT, ERROR, PE) in inkjet and laser printers. IC Role / Device Role / Timing Role: Four-channel transient voltage suppressor tied between signal lines and chassis ground or VCC. Use Value: Enables reliable operation in factory-floor environments where static buildup exceeds 15 kV without requiring layout redesign. | Use Scenario: ESD hardening of controller port and memory card slot interfaces in home entertainment consoles. IC Role / Device Role / Timing Role: Low-capacitance quad clamp deployed on D0–D3 and CMD lines of SD/MMC-compatible slots. Use Value: Allows safe insertion/removal of game cartridges and accessories while preserving 8-bit bus timing margins. |
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 SC-74 package, 5.5 V VBR, 150 pF, 30 kV IEC 1000-4-2, but uses different internal topology (dual-rail clamp) | Optimized for USB 2.0 and HDMI; higher capacitance tolerance may affect timing in legacy parallel interfaces | Select when designing new platforms with tighter EMI budgets and dual-rail (VCC/GND) clamping required |
| Vishay SMAJ4.5A-E3/57T | Single-channel SMA package, 4.5 V VBR, 100 pF, 30 kV rating - requires four separate devices and more PCB area | Suitable only where space constraints allow discrete placement and routing flexibility exists for four independent paths | Choose only if existing layout lacks room for SC-74A or requires asymmetric clamping configurations |
Compared with NUP4105MR6T1G and SMAJ4.5A-E3/57T, NNCD4.3G-T1-A offers lower capacitance (180 pF vs 150–200 pF typical), tighter VBR tolerance (±5% vs ±10%), and integrated quad-channel layout - making it optimal for space-constrained parallel and legacy peripheral interfaces where signal count and board area are critical.
Availability
NNCD4.3G-T1-A is available at Aetrix Electronics and suitable for parallel interface protection, CD-ROM drive connectors, printer peripheral interfaces, and TV game console I/O ports requiring stable component supply and long-term obsolescence management.
Supply support for NNCD4.3G-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, automotive, and consumer markets.
NNCD4.3G-T1-A belongs to Renesas' legacy ESD noise clipping diode family designed specifically for cost-effective, high-density protection of external I/O interfaces in standard-grade commercial electronics.
FAQ
What is the maximum operating temperature for NNCD4.3G-T1-A?
The NNCD4.3G-T1-A has a specified junction temperature limit of 150 °C and a storage temperature range of –55 °C to +150 °C. Its thermal performance is characterized by transient thermal impedance curves in the official datasheet, supporting reliable operation in ambient temperatures up to 125 °C when mounted per recommended PCB pad layout. Derating applies above 25 °C ambient per Figure 1 in the NNCD4.3G-T1-A datasheet.
Does NNCD4.3G-T1-A support bidirectional ESD protection?
Yes, NNCD4.3G-T1-A provides bidirectional clamping via its common-anode quad-diode structure: each cathode-to-anode path conducts during positive transients, while reverse-biased conduction occurs during negative transients when the anode is tied to VCC or ground. This enables full ±30 kV IEC 1000-4-2 protection on all four channels without additional components.
Is NNCD4.3G-T1-A RoHS compliant?
Yes, NNCD4.3G-T1-A complies with the EU RoHS Directive, 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 marked with appropriate RoHS identifiers in production lots post-2006.
Can NNCD4.3G-T1-A be used in automotive applications?
No - NNCD4.3G-T1-A is classified as a Standard quality grade device per Renesas documentation and is intended for computers, office equipment, and consumer electronics. It is not qualified for automotive use (which requires High Quality grade), lacks AEC-Q200 stress testing, and does not meet extended temperature or reliability requirements for vehicle environments.
What is the surge reverse power rating of NNCD4.3G-T1-A?
NNCD4.3G-T1-A has a surge reverse power rating (PRSM) of 85 W for a single 10 µs pulse at TA = 25 °C, as defined in the "Maximum Ratings" table of its datasheet. This rating reflects its ability to absorb transient energy without parametric shift or catastrophic failure, and is validated using standardized IEC test waveforms.
NNCD4.3G-T1-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 1V (Max)
- Voltage - Breakdown (Min):
- 4.01V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 180pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74A
NNCD4.3G-T1-A FAQ
1.How can I place an order for NNCD4.3G-T1-A through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD4.3G-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 NNCD4.3G-T1-A reliable?
The price and inventory of NNCD4.3G-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 NNCD4.3G-T1-A is usually 5 days.
3.What payment methods are accepted for NNCD4.3G-T1-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD4.3G-T1-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD4.3G-T1-A?
NNCD4.3G-T1-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD4.3G-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 NNCD4.3G-T1-A?
For technical support, including NNCD4.3G-T1-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD4.3G-T1-A requirements.
6.How does Aetrix verify that NNCD4.3G-T1-A is sourced from the original manufacturer or authorized distributors?
All NNCD4.3G-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 NNCD4.3G-T1-A meets industry standards.
7.What is the process for return or replacement of NNCD4.3G-T1-A?
All NNCD4.3G-T1-A units undergo pre-shipment inspection (PSI). If there is an issue with NNCD4.3G-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 NNCD4.3G-T1-A part is unused and in its original packaging.
Return procedure for NNCD4.3G-T1-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD4.3G-T1-A Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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