Nexperia USA Inc. MM5Z8V2T5GF

Overview

MM5Z8V2T5GF from Nexperia is a Zener voltage regulator diode in SOD523 (SC-79) package, designed for precision low-power voltage reference and overvoltage protection in space-constrained circuits. It delivers a nominal 8.2 V regulation at I_Z = 5 mA, with ±2 % tolerance, 0.7 Ω differential resistance, and 3.2 mV/K temperature coefficient - enabling stable biasing in sensor interfaces and power rail monitoring.

For engineers reviewing the MM5Z8V2T5GF datasheet, MM5Z8V2T5GF pinout, MM5Z8V2T5GF application, or MM5Z8V2T5GF equivalent, this device supports design-in decisions for compact DC voltage clamping, analog reference generation, and ESD-tolerant signal conditioning where ultra-small footprint and tight Zener voltage accuracy are critical.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable 8.04–8.36 V output across 1–10 mA test currents, with minimal voltage drift due to its +3.2 mV/K temperature coefficient at I_Z = 5 mA. Its low 0.7 Ω dynamic impedance ensures minimal regulation error under varying load conditions.

The device complies with IEC 60134 absolute maximum ratings: 300 mW total power dissipation at T_amb = 25 °C on FR4 PCB with 35 mm² copper area, and 40 W non-repetitive peak reverse power (t_p = 100 µs, square wave). Junction temperature is rated to 150 °C.

Key Specifications

Pinout & Package

SOD523 (SC-79) ultra-small surface-mount plastic package: 1.25 mm × 0.85 mm × 0.65 mm body, cathode marked by bar on top surface, optimized for high-density PCB layouts and reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX584-C8V2 and MMSZ5231B, MM5Z8V2T5GF offers the tightest voltage tolerance and lowest dynamic impedance in the smallest footprint - making it optimal for high-accuracy, size-limited applications like portable instrumentation and wireless sensor nodes.

Availability

MM5Z8V2T5GF is available at Aetrix Electronics and suitable for precision voltage reference, low-power rail clamping, and ESD protection applications requiring stable component supply across high-mix, low-volume production runs.

Supply support for MM5Z8V2T5GF 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 advanced packaging and automotive-qualified components.

The MM5Z series targets general-purpose Zener regulation in ultra-compact consumer, computing, and industrial systems - emphasizing small-footprint reliability, tight voltage tolerance, and robust surge handling without thermal derating penalties.

FAQ

What is the maximum continuous reverse current the MM5Z8V2T5GF can sustain without exceeding its 300 mW power limit?

At 8.2 V Zener voltage, the maximum continuous reverse current is 36.6 mA (300 mW ÷ 8.2 V), assuming ambient temperature remains at 25 °C on a PCB with 35 mm² copper area at the cathode tab. Derating applies above 25 °C per the 350 K/W junction-to-ambient thermal resistance.

How does the +3.2 mV/K temperature coefficient affect circuit performance over −40 °C to +85 °C?

Over that range, the Zener voltage shifts by +3.2 mV/K × 125 K = +0.4 V - resulting in a V_Z span of 8.2 V to 8.6 V. This predictable positive drift allows compensation via series resistor networks in precision references, unlike negative-coefficient Zeners requiring different topology.

Can MM5Z8V2T5GF be used in place of a 9.1 V Zener for overvoltage protection on a 9 V rail?

No - its 8.04–8.36 V regulation range is below the 9 V rail, causing continuous conduction and thermal failure. For 9 V rail clamping, MM5Z9V1T5G (8.92–9.28 V) is the appropriate variant, as confirmed by Nexperia's marking code table and electrical characteristics.

Is the SOD523 package compatible with standard reflow profiles for lead-free assembly?

Yes - Nexperia specifies compatibility with IPC/JEDEC J-STD-020D.2 profiles, including peak temperatures up to 260 °C for ≤30 seconds. The recommended solder land pattern (Fig. 10) uses 0.5 mm pad width and 1.4 mm center-to-center spacing to ensure coplanarity and void-free joints.