Nexperia USA Inc. MM3Z8V2T1GX

Overview

MM3Z8V2T1GX from Nexperia is a surface-mount Zener diode in SOD323 (SC-76) package, designed for precision voltage regulation and reference applications at 8.2 V nominal Zener voltage, ±5 % tolerance, 0.5 Ω differential resistance at I_Z = 5 mA, 300 mW total power dissipation, and 150 °C maximum junction temperature - used in low-power analog reference circuits and overvoltage protection clamping.

For engineers reviewing the MM3Z8V2T1GX datasheet, MM3Z8V2T1GX pinout, MM3Z8V2T1GX application, or MM3Z8V2T1GX equivalent, this page delivers verified electrical characteristics, thermal behavior, cathode/anode terminal mapping, real-world use cases in power rail stabilization and signal conditioning, and validated alternative parts with documented parameter differences.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under controlled current conditions. Its 8.2 V nominal Zener voltage is specified at I_Z = 5 mA, with a low 0.5 Ω differential resistance ensuring minimal voltage shift under load variation and a positive temperature coefficient of +3.2 mV/K enabling predictable thermal drift compensation in reference designs.

The device supports pulsed operation up to 40 W non-repetitive peak reverse power (t_p = 100 µs), while continuous operation is limited to 300 mW at T_amb = 25 °C on FR4 PCB. Its 150 °C maximum junction temperature and −65 °C to +150 °C storage range support industrial ambient deployment without derating below −40 °C.

Key Specifications

Pinout & Package

SOD323 (SC-76) plastic surface-mounted package: 2-terminal, ultra-compact footprint (2.7 mm × 1.6 mm × 1.1 mm), cathode marked by bar on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B8V2 and MMSZ4687T1G, MM3Z8V2T1GX offers superior regulation stability (0.5 Ω vs. ≥10 Ω r_diff) and optimized thermal performance in the smallest SOD323 footprint - making it preferred for space-constrained, high-precision analog and fast-transient protection roles.

Availability

MM3Z8V2T1GX is available at Aetrix Electronics and suitable for power rail stabilization, signal level clamping, analog reference generation, and overvoltage protection requiring stable component supply, consistent parametric performance, and long-term obsolescence management.

Supply support for MM3Z8V2T1GX 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, reliability, and miniaturization.

The MM3Z series targets general-purpose voltage regulation and reference needs in space-constrained, cost-sensitive applications - emphasizing tight tolerance, low dynamic impedance, and robust surge handling in ultra-miniature SMD packages.

FAQ

What is the maximum continuous reverse current for stable Zener operation?

The MM3Z8V2T1GX achieves stable regulation at I_Z = 5 mA, with maximum continuous reverse current limited by thermal constraints: at 25 °C ambient on FR4 PCB, 300 mW dissipation corresponds to ~36 mA (8.2 V × 36 mA ≈ 300 mW). Operation beyond this requires derating per R_th(j-a) = 415 K/W to avoid exceeding 150 °C junction temperature.

How does the +3.2 mV/K temperature coefficient affect circuit accuracy?

The +3.2 mV/K coefficient means V_Z increases by 3.2 mV per degree Celsius rise in junction temperature. Over a 0–70 °C ambient range with self-heating, total drift is typically <250 mV - manageable via resistor-based compensation or selection of complementary-TC components in precision references.

Can MM3Z8V2T1GX be used in bidirectional ESD protection?

No - it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection, paired Zeners or dedicated TVS arrays (e.g., PESD5V0S1BA) are required. Forward conduction (V_F ≤ 1.1 V) is not rated for surge handling and lacks symmetric clamping behavior.

Is the SOD323 package compatible with standard reflow profiles?

Yes - Nexperia specifies compatibility with JEDEC J-STD-020D reflow profiles. The SOD323 footprint (Fig. 12) uses 0.6 mm solder lands with 0.5 mm spacing; peak temperature must not exceed 260 °C for ≤ 30 seconds, and thermal ramp rate should stay within 3 °C/s to prevent package cracking or delamination.