Nexperia USA Inc. TDZ3V3J,115

Overview

TDZ3V3J,115 from Nexperia is a single Zener diode in SOD323F (SC-90) package, designed for precision voltage regulation and overvoltage protection in low-power signal conditioning circuits. It delivers a nominal Zener voltage of 3.3 V (3.23–3.37 V at I_Z = 5 mA), with differential resistance ≤500 Ω, reverse current ≤5 µA at V_R = 1 V, and total power dissipation up to 500 mW at T_amb ≤25 °C. It is AEC-Q101 qualified for automotive body electronics.

For engineers reviewing the TDZ3V3J,115 datasheet, TDZ3V3J,115 pinout, TDZ3V3J,115 application, or TDZ3V3J,115 equivalent, key selection criteria include Zener voltage tolerance, low leakage at low reverse bias, thermal resistance (R_th(j-sp) = 25 K/W), surge capability (180 W non-repetitive peak), and SOD323F footprint compatibility in space-constrained PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its −3.5 mV/K temperature coefficient ensures predictable drift across −55 °C to +150 °C ambient range, and its low 410 pF capacitance at f = 1 MHz supports high-frequency noise suppression in analog sensor interfaces.

The device uses a planar silicon junction structure optimized for tight V_Z distribution and low dynamic impedance. Mounting on FR4 PCB with 16 mm² cathode pad achieves R_th(j-a) = 250 K/W in free air and R_th(j-sp) = 25 K/W to solder point-critical for transient thermal management during ESD or load-dump events.

Key Specifications

Pinout & Package

SOD323F (SC-90) plastic surface-mounted package: ultra-compact 2.7 × 1.6 mm outline with 0.65 mm lead pitch and 0.25 mm profile-designed for high-density automated assembly and reflow soldering only.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B3V3,115 and MMSZ3V3T1G, TDZ3V3J,115 offers superior thermal performance (R_th(j-sp) = 25 K/W), higher continuous power (500 mW), and AEC-Q101 qualification-making it the preferred choice for automotive and industrial applications demanding reliability under thermal and electrical stress.

Availability

TDZ3V3J,115 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C power monitors, and medical wearable battery protection requiring stable component supply and long-term lifecycle continuity.

Supply support for TDZ3V3J,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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.

The TDZxJ series targets space-constrained, high-reliability voltage regulation in automotive and industrial systems-designed specifically for AEC-Q101 compliance, low-profile SMD assembly, and robust transient immunity.

FAQ

What is the maximum continuous forward current for TDZ3V3J,115?

The absolute maximum forward current is 250 mA per Table 5. However, forward conduction is not its intended operating mode; typical use maintains reverse bias. At I_F = 100 mA, forward voltage is ≤1.1 V, confirming low-loss conduction if used in polarity-protection configurations.

How does the −3.5 mV/K temperature coefficient affect regulation accuracy over temperature?

Over a 100 °C range (−40 °C to +60 °C), the Zener voltage shifts by approximately −350 mV-i.e., from ~3.37 V to ~3.02 V. This predictable negative drift enables compensation in reference circuits using positive-tempco resistors or matched diodes, achieving <±1% total error across the range.

Can TDZ3V3J,115 be used in parallel for higher power dissipation?

No-Zener diodes exhibit negative resistance characteristics and cannot be reliably paralleled without individual ballast resistors. The datasheet specifies single-device operation only; parallel use risks thermal runaway due to mismatched V_Z and r_dif, even within the same reel.

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

Yes-Nexperia explicitly states reflow soldering is the only recommended method. The SOD323F package is qualified for JEDEC J-STD-020D-compliant lead-free reflow, with peak temperatures up to 260 °C. Footprint dimensions in Figure 8 ensure proper wetting and alignment on 0.65 mm pitch pads.