Nexperia USA Inc. TDZ11J,115

Overview

TDZ11J,115 from Nexperia is a single Zener diode in SOD323F (SC-90) package, designed for precision voltage regulation and reference functions in space-constrained PCBs. It delivers a nominal Zener voltage of 11.0 V at 5 mA, with differential resistance ≤150 Ω, total power dissipation up to 500 mW, and AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the TDZ11J,115 datasheet, TDZ11J,115 pinout, TDZ11J,115 application, or TDZ11J,115 equivalent, this device serves as a low-capacitance (108 pF), temperature-stable (5.4–9.0 mV/K) 11 V reference in power supply feedback loops, overvoltage clamping circuits, and ESD-protected sensor interfaces where thermal resistance to solder point is critical at 25 K/W.

Technical Context

This Zener operates in reverse breakdown mode with tightly controlled V_Z tolerance (±0.4 V at 11 V nominal), specified under I_Z = 5 mA and T_j = 25 °C. Its low differential resistance ensures stable regulation across load variations, while its 108 pF capacitance supports high-frequency noise suppression without compromising transient response.

The device features AEC-Q101 qualification, junction temperature rating up to 150 °C, and non-repetitive peak reverse power dissipation of 40 W (for 7.5–30 V types). Thermal resistance from junction to solder point is 25 K/W - optimized for FR4 PCBs with 16 mm² cathode pad - enabling reliable operation in thermally demanding automotive and industrial environments.

Key Specifications

Pinout & Package

SOD323F (SC-90) is a surface-mount plastic package measuring 2.7 × 1.6 × 0.95 mm, with flat leads and cathode marked by a bar on the top surface. The package is optimized for reflow soldering and occupies minimal board area.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Compared with BZX384-B11,115 and MMBZ5240BS-7-F, TDZ11J,115 uniquely combines 11 V precision, 500 mW power handling, AEC-Q101 qualification, and 25 K/W junction-to-solder thermal resistance - making it the only option for automotive or industrial 11 V clamping where both reliability and thermal performance are mandatory.

Availability

TDZ11J,115 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor reference design, and medical instrument overvoltage guard circuits requiring stable component supply across extended product lifecycles.

Supply support for TDZ11J,115 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

Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.

The TDZxJ series targets space-constrained, thermally demanding applications requiring stable Zener regulation - especially in automotive power management, industrial sensing, and safety-critical overvoltage protection.

FAQ

What is the maximum continuous reverse current the TDZ11J,115 can sustain at 25 °C ambient?

The TDZ11J,115 is rated for total power dissipation of 500 mW at T_amb ≤ 25 °C. At its nominal Zener voltage of 11.0 V, this corresponds to a maximum continuous reverse current of approximately 45.5 mA (500 mW ÷ 11.0 V), assuming full power is allocated to Zener conduction without derating.

How does the 108 pF capacitance affect high-speed signal line protection?

With 108 pF capacitance measured at 1 MHz and zero bias, TDZ11J,115 introduces minimal loading on signals below 10 MHz. In USB 2.0 or CAN FD interfaces, it acts as a low-pass filter that attenuates RF noise above ~1.5 MHz without distorting data edges - confirmed by typical capacitance-vs-voltage curves showing <120 pF across 0–8 V reverse bias.

Is the SOD323F package compatible with standard reflow profiles for lead-free assembly?

Yes - Nexperia specifies reflow soldering as the only recommended method, and the SOD323F package is qualified for JEDEC J-STD-020D-compliant lead-free reflow profiles, including peak temperatures up to 260 °C for ≤30 seconds. The 0.95 mm height and flat leads ensure coplanarity and consistent wetting on 0.5 mm pitch pads.

Does the AEC-Q101 qualification cover temperature cycling and mechanical shock testing?

Yes - AEC-Q101 qualification for TDZ11J,115 includes full stress testing per the standard: 1000 cycles of temperature cycling (−40 °C to +125 °C), mechanical shock (2943 m/s²), and high-temperature reverse bias (1000 hrs at 150 °C), all performed on production lots to validate robustness for automotive under-hood and chassis applications.