Renesas NNCD6.2D-T1-A

Overview

NNCD6.2D-T1-A from Renesas Electronics is a 2-pin electrostatic discharge (ESD) noise clipping diode in Super Mini Mold package, rated for 200 mW power dissipation, with breakdown voltage 5.84–6.55 V, dynamic impedance ≤50 Ω at 5 mA, and ESD endurance ≥30 kV per IEC 1000-4-2. It protects external interface circuits such as parallel printer ports and CD-ROM connectors.

For engineers reviewing the NNCD6.2D-T1-A datasheet, NNCD6.2D-T1-A pinout, NNCD6.2D-T1-A application, or NNCD6.2D-T1-A equivalent, key selection criteria include clamping voltage under surge, junction capacitance (120 pF), low dynamic impedance, and compatibility with 2-pin surface-mount layout for high-density PCBs.

Technical Context

This device operates as a bidirectional transient voltage suppressor optimized for ESD protection on signal lines. Its low clamping voltage (3.0 V at 5 mA) and fast response enable effective suppression of ±30 kV contact discharge events without affecting normal signal integrity.

The diode exhibits a typical junction capacitance of 120 pF at 1 MHz and VR = 0 V, making it suitable for low-speed digital interfaces. Its thermal resistance profile supports operation up to 150 °C junction temperature, with transient thermal impedance of 625 °C/W at t = 1 ms.

Key Specifications

Pinout & Package

NNCD6.2D-T1-A uses a 2-pin Super Mini Mold package (2.5 mm × 1.25 mm × 0.9 mm) with cathode marked by a band. The device is bidirectional and symmetrical; both terminals serve identical roles in ESD protection paths.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection applications.

Compared with NUP4105MR6T1G and SMAJ6.0A, NNCD6.2D-T1-A offers optimal trade-off for single-line, space-constrained, bidirectional signal protection-delivering 30 kV ESD immunity in the smallest possible 2-pin form factor without sacrificing clamping performance.

Availability

NNCD6.2D-T1-A is available at Aetrix Electronics and suitable for parallel printer interfaces, CD-ROM data buses, industrial keypad panels, and legacy game console cartridge slots requiring stable component supply and long-term obsolescence management.

Supply support for NNCD6.2D-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.

NNCD6.2D-T1-A belongs to Renesas' legacy ESD noise clipping diode family, designed specifically for cost-sensitive, high-volume interface protection in Standard-grade applications including office equipment and home electronics.

FAQ

What is the maximum ESD voltage that NNCD6.2D-T1-A can withstand?

NNCD6.2D-T1-A is rated for ≥30 kV contact discharge per IEC 1000-4-2, verified under standardized test conditions with 150 pF capacitor and 330 Ω series resistor. This rating applies to both positive and negative polarity surges and reflects guaranteed minimum performance across production lots-not a typical value. The device maintains clamping below 3.0 V during such events, ensuring downstream IC safety. Always verify final system-level immunity with full-system ESD testing.

Is NNCD6.2D-T1-A unidirectional or bidirectional?

NNCD6.2D-T1-A is a bidirectional ESD protection diode. Its symmetrical structure allows it to clamp transients of either polarity equally, making it ideal for AC-coupled or floating signal lines like parallel printer data bits or CD-ROM IDE bus lines. No external biasing is required, and the cathode band serves only as an orientation marker-not a functional polarity indicator. This eliminates design errors from incorrect orientation during placement.

What is the junction capacitance of NNCD6.2D-T1-A and how does it affect signal integrity?

NNCD6.2D-T1-A has a typical junction capacitance of 120 pF measured at 1 MHz and VR = 0 V. This value is well-suited for low-speed digital interfaces such as legacy parallel ports (≤2 Mbps) and ATAPI CD-ROM buses (≤16.6 MHz), where added capacitance does not cause significant rise-time degradation or crosstalk. For high-speed interfaces like USB 2.0 or HDMI, lower-capacitance alternatives would be required-but NNCD6.2D-T1-A remains optimal for its intended application scope.

Can NNCD6.2D-T1-A be used in automotive applications?

NNCD6.2D-T1-A is classified as a Standard-grade Renesas product, qualified for applications including office equipment, home electronics, and industrial robots-not automotive or safety-critical systems. It lacks AEC-Q200 qualification and is not rated for extended temperature ranges beyond –55 °C to +150 °C junction. For automotive infotainment or body control modules, Renesas offers AEC-Q200-qualified alternatives such as the RCLAMP series; NNCD6.2D-T1-A should not be deployed in vehicles without formal qualification review and validation.

What is the thermal derating behavior of NNCD6.2D-T1-A above 25 °C ambient?

NNCD6.2D-T1-A has a maximum power dissipation of 200 mW at TA = 25 °C, derating linearly to zero at 150 °C ambient per the published power vs. temperature curve (Fig. 1). At 75 °C ambient, usable power drops to ~100 mW; at 125 °C, it falls to ~25 mW. Since ESD events are transient and non-repetitive, thermal derating primarily affects sustained overvoltage scenarios-not typical ESD use. The device's 625 °C/W transient thermal impedance ensures safe energy absorption even at elevated board temperatures.