Nexperia USA Inc. MM3Z3V0T1GX

Overview

MM3Z3V0T1GX from Nexperia is a 3.0 V ±5 % tolerance Zener diode in SOD323 (SC-76) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, with 95 Ω typical differential resistance at I_Z = 5 mA and −3.5 to 0 mV/K temperature coefficient - used for precision voltage reference and low-power regulation in sensor biasing and microcontroller reset circuits.

For engineers reviewing the MM3Z3V0T1GX datasheet, MM3Z3V0T1GX pinout, MM3Z3V0T1GX application, or MM3Z3V0T1GX equivalent, this page delivers verified Zener voltage, thermal resistance (R_th(j-a) = 415 K/W), forward voltage (V_F = 1.1 V @ 100 mA), reverse current limits (I_R ≤ 1000 µA @ V_R = 2.8 V), and cathode/anode terminal mapping per JEDEC SOD323 outline.

Technical Context

This Zener diode operates in reverse breakdown mode with nominal 3.0 V regulation at I_Z = 5 mA, exhibiting low dynamic impedance (10 Ω max) and tight voltage tolerance (±5 %). Its junction-to-ambient thermal resistance of 415 K/W reflects performance on standard FR4 PCBs with single-sided copper.

The device supports pulse surge handling up to 40 W (t_p = 100 µs, square wave) and maintains stable regulation across −55 °C to +150 °C ambient range. Temperature coefficient ranges from −3.5 to 0 mV/K, enabling predictable drift behavior in low-temperature-coefficient reference designs.

Key Specifications

Pinout & Package

SOD323 (SC-76) surface-mount plastic package with 2-terminal configuration: compact 1.35 mm × 0.85 mm footprint, 0.45 mm height, and cathode-marked top-side bar.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B3V0,115, MM3Z3V0T1GX offers 50 % higher continuous power and tighter impedance; versus MMSZ3V0T1G, it provides identical regulation in a 30 % smaller footprint but trades 200 mW P_tot headroom for miniaturization.

Availability

MM3Z3V0T1GX is available at Aetrix Electronics and suitable for microcontroller reset circuits, sensor bias references, USB overvoltage clamping, and low-power IoT node regulation requiring stable component supply across industrial temperature ranges and long-lifecycle programs.

Supply support for MM3Z3V0T1GX 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 solutions with focus on efficiency, miniaturization, and robustness for industrial and consumer applications.

The MM3Z series targets general-purpose voltage regulation and reference functions in space-constrained, cost-sensitive designs - optimized for SOD323 mounting, tight tolerance, and repeatable surge resilience.

FAQ

What is the maximum continuous reverse current the MM3Z3V0T1GX can sustain at 25 °C?

The MM3Z3V0T1GX does not specify a maximum continuous reverse current; instead, its safe operating area is defined by total power dissipation (300 mW at T_amb = 25 °C). At nominal 3.0 V Zener voltage, this corresponds to ~100 mA average reverse current - but actual usable current depends on thermal design and ambient temperature derating per R_th(j-a) = 415 K/W.

How does the marking code 'XT' correspond to MM3Z3V0T1GX?

The marking code 'XT' is the top-side laser etch identifier for MM3Z3V0T1GX per Nexperia's official marking table. It appears adjacent to the cathode bar on the SOD323 package and is used for visual identification and traceability during assembly and inspection - distinct from other variants like 'XW' (3.3 V) or 'XZ' (3.6 V).

Can MM3Z3V0T1GX be used in place of a 3.3 V Zener diode for margin testing?

No - MM3Z3V0T1GX is strictly a 3.0 V nominal Zener (2.8–3.2 V range); substituting it for a 3.3 V part (e.g., MM3Z3V3T1GX) risks undershoot in regulation-critical circuits. Its 3.0 V band has no overlap with the 3.1–3.5 V range of 3.3 V devices, and differential resistance and temperature coefficient profiles differ significantly between voltage grades.

Is the SOD323 package of MM3Z3V0T1GX compatible with standard reflow profiles for lead-free soldering?

Yes - Nexperia specifies compatibility with IPC/JEDEC J-STD-020D reflow profiles. The SOD323 footprint (Fig. 12) supports peak temperatures up to 260 °C for ≤ 30 seconds, with recommended preheat (150–200 °C), soak (183–200 °C), and ramp rates per JEDEC standards - validated for tin-silver-copper (SAC305) paste and standard FR4 PCB construction.