onsemi NZ9F6V8T5G

Overview

NZ9F6V8T5G from onsemi is a 250 mW, 6.46–7.14 V Zener voltage regulator diode in SOD-923 package, designed for precision voltage clamping and ESD protection in space-constrained portable electronics. It delivers 40 Ω max Zener impedance at 5 mA test current, 0.5 µA max leakage at 4.5 V reverse bias, and ±16 kV HBM ESD rating.

For engineers reviewing the NZ9F6V8T5G datasheet, pinout, applications, or equivalent options, key selection criteria include its 6.8 V nominal Zener voltage tolerance (±5%), low 0.37 mm height, RoHS-compliant matte tin termination, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This device operates as a two-terminal, silicon planar Zener diode with sharp reverse breakdown characteristics. Its regulation behavior is defined at I_ZT = 5 mA, with temperature coefficient of +1.2 mV/°C and capacitance of 105 pF at 0 V and 1 MHz - critical for high-frequency noise suppression in power rail stabilization.

The SOD-923 package enables ultra-dense PCB layouts with 1.00 mm × 0.60 mm footprint and MSL 1 reflow compatibility up to 260 °C. Thermal resistance is 500 °C/W (junction-to-ambient), limiting continuous dissipation to 250 mW at 25 °C ambient, derating linearly at 2.0 mW/°C above that.

Key Specifications

Pinout & Package

SOD-923 surface-mount package with 2-terminal configuration: cathode marked by polarity band (Pin 1), anode unmarked (Pin 2). Body dimensions: 1.00 mm × 0.60 mm × 0.37 mm; lead finish: 100% matte Sn; MSL Level 1; qualified for 260 °C reflow.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX584C6V8 and MMSZ4687T1G, NZ9F6V8T5G offers the smallest footprint, certified 16 kV ESD robustness, and automotive qualification - making it optimal for next-gen portable and automotive systems where size, reliability, and regulatory compliance are jointly constrained.

Availability

NZ9F6V8T5G is available at Aetrix Electronics and suitable for smartphone power management, USB interface protection, and automotive cabin controller applications requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for NZ9F6V8T5G 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

NZ9F6V8T5G belongs to the NZ9F/SZNZ9F series of miniature Zener regulators, engineered specifically for ultra-compact voltage reference and ESD protection in space-constrained, high-reliability portable and automotive electronics.

FAQ

What is the nominal Zener voltage of NZ9F6V8T5G and how tightly is it specified?

The nominal Zener voltage of NZ9F6V8T5G is 6.8 V, with a guaranteed range of 6.46 V to 7.14 V at 5 mA test current - representing a ±5% tolerance. This tight specification enables reliable use in precision voltage reference and overvoltage clamp circuits where regulation accuracy directly affects system safety margins. The NZ9F6V8T5G achieves this via onsemi's controlled diffusion process and post-package screening.

Is NZ9F6V8T5G suitable for automotive applications?

Yes, NZ9F6V8T5G is AEC-Q101 qualified and PPAP capable, confirming its suitability for automotive applications including body electronics, infotainment, and ADAS subsystems. Its construction meets stringent reliability requirements for temperature cycling, mechanical shock, and long-term operational stability under vibration and thermal stress - all validated per the AEC-Q101 standard. The NZ9F6V8T5G also carries the SZ prefix option for automotive-specific traceability.

What is the maximum Zener impedance of NZ9F6V8T5G and why does it matter?

The maximum Zener impedance of NZ9F6V8T5G is 40 Ω at I_ZT = 5 mA. This value reflects the dynamic resistance of the diode in breakdown and directly determines how well it maintains regulation under varying load conditions. A lower Z_ZT means smaller output voltage deviation during current transients - critical for protecting sensitive ICs from overvoltage excursions in fast-switching power domains where NZ9F6V8T5G is deployed.

Does NZ9F6V8T5G have ESD protection capability, and what level is certified?

Yes, NZ9F6V8T5G has an ESD rating of Class 3 (>16 kV) per the Human Body Model (HBM), verified per JESD22-A114. This makes it suitable as a discrete ESD suppressor on I/O lines in handheld devices, USB interfaces, and sensor inputs. Its low capacitance (105 pF) ensures minimal signal distortion, while the high HBM rating allows NZ9F6V8T5G to absorb repeated electrostatic discharges without degradation - a key advantage over generic Zeners lacking formal ESD certification.

What package type and dimensions does NZ9F6V8T5G use, and how does it compare to industry standards?

NZ9F6V8T5G uses the SOD-923 package (Case 514AB), measuring 1.00 mm × 0.60 mm × 0.37 mm - identical in footprint to the 0201 chip resistor but with polarized terminals. It is smaller than SOD-523 (0.8 × 0.6 mm, taller) and significantly smaller than SOD-123 (3.7 × 1.6 mm). This ultra-compact size allows NZ9F6V8T5G to fit in dense routing channels and beneath shields where larger Zeners cannot be placed, enabling miniaturization in modern portable electronics.