Nexperia USA Inc. MM5Z22VT5GF

Overview

MM5Z22VT5GF from Nexperia is a 22 V ±2 % tolerance Zener diode in SOD523 (SC-79) package, rated for 300 mW total power dissipation and 40 W non-repetitive peak reverse power, with 21.56–22.44 V nominal Zener voltage at I_Z = 5 mA, 15.4 Ω differential resistance, and −16.4 to +20.0 mV/K temperature coefficient - used for precision voltage reference and overvoltage clamping in low-power analog circuits.

For engineers reviewing the MM5Z22VT5GF datasheet, MM5Z22VT5GF pinout, MM5Z22VT5GF application, or MM5Z22VT5GF equivalent, this device serves as a compact, stable shunt regulator in space-constrained consumer and industrial power management subsystems where tight voltage tolerance and low thermal resistance (65 K/W junction-to-solder-point) are critical.

Technical Context

This Zener diode operates in reverse breakdown mode with specified Zener voltage (V_Z) measured at I_Z = 5 mA, exhibiting low differential resistance (15.4 Ω) and controlled temperature coefficient (−16.4 to +20.0 mV/K), enabling predictable regulation across ambient temperatures from −55 °C to +150 °C.

Its SOD523 package delivers minimal footprint (1.25 × 0.85 mm) and low thermal resistance (R_th(j-sp) = 65 K/W), supporting reliable operation under pulsed surge conditions (t_p = 100 µs, square wave) up to 40 W, while maintaining ≤300 mW steady-state dissipation on FR4 PCB with 35 mm² copper area.

Key Specifications

Pinout & Package

SOD523 (SC-79) ultra-small surface-mount plastic package: 1.25 mm × 0.85 mm body, 0.65 mm height, cathode marked by bar on top surface; optimized for high-density PCB assembly and reflow soldering per Fig. 10 footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX584-C22 and MMSZ5247B, MM5Z22VT5GF offers superior voltage accuracy (±2 % vs. ±5 %), lower dynamic impedance (15.4 Ω), and verified 40 W surge capability - making it optimal for miniaturized, high-stability regulation where thermal and spatial constraints dominate.

Availability

MM5Z22VT5GF is available at Aetrix Electronics and suitable for power supply reference, overvoltage clamp, and low-power sensor bias applications requiring stable component supply, tight voltage tolerance, and ultra-compact packaging.

Supply support for MM5Z22VT5GF 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 voltage regulation in space-constrained consumer, industrial, and computing applications - emphasizing ultra-small form factor, tight tolerance, and robust surge performance in SOD523.

FAQ

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

The MM5Z22VT5GF is rated for 5 mA Zener test current, but its absolute maximum forward current is 200 mA. For stable regulation, recommended continuous reverse current is 1–10 mA - exceeding 10 mA risks exceeding 300 mW P_tot unless board copper area exceeds 35 mm², per thermal characterization data.

How does the temperature coefficient affect regulation accuracy over −40 °C to +85 °C?

With a specified SZ range of −16.4 to +20.0 mV/K, the Zener voltage can drift up to ±1.2 V across a 125 K temperature span - meaning at 85 °C, V_Z may reach ~23.6 V, and at −40 °C, ~20.8 V. This must be accounted for in wide-temperature designs using this part as a primary reference.

Can MM5Z22VT5GF replace a 22 V through-hole Zener in existing designs?

No direct drop-in replacement exists due to SOD523's 1.25 × 0.85 mm footprint and SC-79 pinning - it requires PCB redesign with reflow-compatible pads per Figure 10. Mechanical and thermal behavior also differ significantly from axial or DO-35 packages, necessitating layout and thermal validation.

Is this device suitable for automotive applications?

No - the MM5Z22VT5GF is not AEC-Q200 qualified, lacks automotive-grade screening, and carries no automotive qualification statement in its datasheet. Nexperia explicitly states non-automotive qualified products are unsuitable for safety-critical or life-support systems per legal disclaimers.