Renesas NNCD36DT(0)-T1-AT

Overview

NNCD36DT(0)-T1-AT from Renesas Electronics is an electrostatic discharge (ESD) noise clipping diode designed for bidirectional transient suppression on LIN bus lines. It features a 33–39 V breakdown voltage, 9 pF capacitance at 1 MHz, 0.1 μA reverse leakage at 27 V, 85 W surge reverse power (10 μs pulse), and is housed in a 2-pin SC-76 (Super Mini Mold) package for high-density automotive network protection.

For engineers reviewing the NNCD36DT(0)-T1-AT datasheet, NNCD36DT(0)-T1-AT pinout, NNCD36DT(0)-T1-AT application, or NNCD36DT(0)-T1-AT equivalent, key selection criteria include bidirectional ESD clamping performance, low capacitance for LIN signal integrity, IEC61000-4-2 compliance, thermal derating on 50 mm × 50 mm PCB, and Pb-free surface-mount compatibility in automotive body electronics.

Technical Context

This device operates as a bidirectional voltage-clamping diode, leveraging avalanche breakdown to shunt both positive and negative transients above its specified V_BR range (33–39 V). Its low 9 pF junction capacitance minimizes signal distortion on LIN bus lines operating up to 20 kbps, while the 0.1 μA reverse leakage at 27 V ensures minimal standby current draw in always-on vehicle networks.

The SC-76 package enables compact placement near LIN transceivers, with thermal performance validated for 200 mW steady-state dissipation on a 50 mm × 50 mm × 1.6 mm glass epoxy PCB. Surge capability is defined per non-repetitive 10 μs pulses (85 W), aligning with ISO 16750-2 and IEC61000-4-2 Level 4 test profiles for automotive electronics.

Key Specifications

Pinout & Package

Package: SC-76 (2-pin Super Mini Mold), dimensions 1.25±0.1 mm × 0.9±0.1 mm × 0.3±0.05 mm, lead-free pure Sn plating, tape-and-reel (3000 pcs/reel).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPD1E05U06DPYR and ESDALC6V1-1U2, NNCD36DT(0)-T1-AT provides optimized 33–39 V clamping for 12 V automotive LIN buses, validated thermal performance on standard PCBs, and lower capacitance than alternatives rated for lower voltages-making it the only option qualified for direct integration into production LIN node designs.

Availability

NNCD36DT(0)-T1-AT is available at Aetrix Electronics and suitable for body control modules, door module networks, and roof console units requiring stable component supply with automotive-grade ESD robustness and long-term lifecycle support.

Supply support for NNCD36DT(0)-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 manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for automotive and industrial systems.

NNCD36DT(0)-T1-AT belongs to Renesas' legacy ESD protection diode family targeting LIN bus physical layer hardening, developed specifically for cost-sensitive, space-constrained automotive body electronics with IEC61000-4-2 compliance requirements.

FAQ

What is the primary function of the NNCD36DT(0)-T1-AT in a LIN bus system?

The NNCD36DT(0)-T1-AT serves as a bidirectional ESD noise clipping diode that clamps transient overvoltages on the LIN bus line to protect downstream transceivers. It activates above its 33–39 V breakdown voltage, diverting surge current to ground during both positive and negative ESD events while maintaining signal integrity via its 9 pF capacitance. This ensures reliable communication in automotive body networks exposed to human-contact ESD.

Does the NNCD36DT(0)-T1-AT meet IEC61000-4-2 standards?

Yes, the NNCD36DT(0)-T1-AT complies with IEC61000-4-2 Level 4 (±15 kV contact discharge) as confirmed in its original Renesas datasheet D18880EJ1V0DS00. Its 85 W surge reverse power rating at 10 μs pulse width and verified clamping behavior under fast-rising transients make it suitable for automotive applications requiring certified ESD immunity without additional external circuitry.

What is the maximum steady-state power dissipation for NNCD36DT(0)-T1-AT?

The NNCD36DT(0)-T1-AT has a maximum steady-state power dissipation of 200 mW when mounted on a 50 mm × 50 mm × 1.6 mm glass epoxy PCB, as specified in its absolute maximum ratings table. Derating begins above 25°C ambient temperature, reaching zero dissipation at 150°C junction temperature. This rating supports continuous operation in under-hood and cabin environments where thermal management is passive.

Can NNCD36DT(0)-T1-AT be used on 5 V logic lines?

No, the NNCD36DT(0)-T1-AT is not suitable for 5 V logic lines due to its 33–39 V breakdown voltage range. Using it on low-voltage interfaces would result in no clamping action during typical ESD events, leaving circuits unprotected. For 5 V applications, devices like TPD1E05U06DPYR (5.5 V V_BR) are appropriate; NNCD36DT(0)-T1-AT is engineered exclusively for 12 V automotive LIN bus voltage domains.

Is NNCD36DT(0)-T1-AT RoHS-compliant and lead-free?

Yes, NNCD36DT(0)-T1-AT is RoHS-compliant and lead-free, with pure tin (Sn) plating on external electrodes as stated in the ordering information section of its datasheet. The "-T1-AT" suffix explicitly denotes tape-and-reel packaging with Pb-free termination, satisfying EU RoHS Directive 2011/65/EU and J-STD-609A Class 1 moisture sensitivity requirements for surface-mount assembly.