Diodes Incorporated DZ9F9V1S92-7

Overview

DZ9F9V1S92-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 9.1 V (±5% tolerance), 30 Ω maximum zener impedance at 5 mA test current, and 0.5 mA minimum knee current. It features ultra-small SOD923 package (1.0 × 0.6 × 0.37 mm), 200 mW power dissipation, and operates across −65 °C to +150 °C for voltage reference and overvoltage protection in space-constrained DC power rails.

For engineers reviewing the DZ9F9V1S92-7 datasheet, DZ9F9V1S92-7 pinout, DZ9F9V1S92-7 application, or DZ9F9V1S92-7 equivalent, key selection criteria include zener voltage stability at low current (TC = +3.8 mV/°C), reverse leakage ≤0.5 µA at 6 V, capacitance of 80 pF at 0 V, thermal resistance of 625 °C/W, and compatibility with automated optical inspection due to exposed terminals.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage under varying load and temperature conditions. Its low 0.5 mA knee current enables regulation in ultra-low-power circuits, while the +3.8 mV/°C temperature coefficient ensures predictable drift in industrial ambient ranges.

The SOD923 package delivers high thermal efficiency via exposed copper terminals and supports reflow soldering per J-STD-020 Level 1 moisture sensitivity. The device uses matte tin–annealed Alloy 42 leadframe for reliable solderability and RoHS-compliant, halogen-free construction.

Key Specifications

Pinout & Package

Package: SOD923 (1.0 × 0.6 × 0.37 mm), flat-lead, thermally efficient, with cathode band marking and exposed terminals for optical solder-joint inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B9V1,115 and MMSZ4687T1G, DZ9F9V1S92-7 offers optimal balance of ultra-compact size, low 30 Ω impedance, and precise +3.8 mV/°C TC-making it uniquely suited for miniaturized, thermally aware voltage references where both space and regulation fidelity are critical.

Availability

DZ9F9V1S92-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery reference, and automotive body control module applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for DZ9F9V1S92-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.

DZ9F9V1S92-7 belongs to the DZ9F series of ultra-miniature Zener diodes designed specifically for space-constrained voltage reference and overvoltage protection in portable, automotive, and IoT edge devices.

FAQ

What is the maximum reverse voltage this Zener diode can withstand before breakdown?

The DZ9F9V1S92-7 has a nominal zener voltage of 9.1 V with a guaranteed breakdown range of 8.65 V to 9.56 V at 5 mA test current. It is not rated for sustained reverse voltage above its specified V_Z range; operation beyond 9.56 V risks exceeding its 200 mW power limit unless current is strictly limited by external series resistance.

Can this device be used in place of a 9 V battery replacement circuit?

No. While its zener voltage approximates 9 V, the DZ9F9V1S92-7 is a shunt regulator-not a power source-and cannot deliver meaningful current. It requires a current-limiting resistor and a higher input voltage to function. It is intended for voltage reference or overvoltage clamping, not energy storage or replacement.

Is the SOD923 package compatible with standard reflow profiles for lead-free soldering?

Yes. The SOD923 package is qualified for lead-free reflow per J-STD-020, with moisture sensitivity level 1. Diodes Incorporated specifies peak reflow temperatures up to 260 °C for 30 seconds, and the matte tin–annealed Alloy 42 leadframe ensures robust solder wetting and intermetallic formation under standard Pb-free profiles.

How does the +3.8 mV/°C temperature coefficient affect long-term voltage stability?

The +3.8 mV/°C TC means the zener voltage increases by 3.8 mV per degree Celsius rise in junction temperature. Over a 100 °C range (−40 °C to +60 °C ambient), this contributes ~380 mV drift-approximately ±4.2% of 9.1 V. System-level compensation or TC-matched components are required for sub-1% total voltage stability across temperature.