Diodes Incorporated DDZ9690Q-7

Overview

DDZ9690Q-7 from Diodes Incorporated is a surface-mount, low-current Zener diode in SOD123 package, rated for 5.6 V nominal zener voltage (5.32–5.88 V), 500 mW power dissipation at TL = +75°C on FR-4 PCB, and specified at 50 µA test current - optimized for low-bias, battery-powered voltage regulation and reference applications.

For engineers reviewing the DDZ9690Q-7 datasheet, DDZ9690Q-7 pinout, DDZ9690Q-7 application, or DDZ9690Q-7 equivalent, this AEC-Q101 qualified automotive-grade Zener provides stable reverse breakdown with low leakage (2 µA @ 4 V), tight voltage tolerance, and green RoHS-compliant packaging suitable for automated assembly and space-constrained designs.

Technical Context

This device operates as a precision voltage reference by maintaining a stable reverse-biased breakdown voltage across its cathode-anode terminals. Its 50 µA test current enables accurate regulation in ultra-low-power circuits, while the 150 °C/W junction-to-lead thermal resistance supports reliable operation under localized heating conditions.

The SOD123 package features a single cathode band marking, matte tin annealed terminals, and UL 94V-0 molded plastic housing. With a temperature coefficient of approximately +0.04 %/°C near 5.6 V, it delivers predictable drift behavior over –65 to +150 °C operating range.

Key Specifications

Pinout & Package

Package: SOD123 - Surface-mount plastic case with cathode band marking; dimensions: 1.55 mm × 2.65 mm × 1.05 mm (L × W × H); weight ≈ 0.01 g; moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C5V6-7-F and MMSZ5232B-TP, DDZ9690Q-7 uniquely combines AEC-Q101 qualification, halogen-free "Green" status, and IATF 16949 manufacturing - making it the only option for production automotive modules requiring full PPAP documentation and long-term supply continuity.

Availability

DDZ9690Q-7 is available at Aetrix Electronics and suitable for automotive body electronics, portable medical sensors, industrial IoT edge nodes, and consumer wearables requiring stable component supply across extended product lifecycles.

Supply support for DDZ9690Q-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 components for automotive, industrial, and computing markets.

The DDZ96xxQ series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for voltage reference and overvoltage protection in safety-critical, thermally demanding environments.

FAQ

What is the maximum reverse voltage (VR) at which DDZ9690Q-7 guarantees ≤2 µA leakage?

DDZ9690Q-7 guarantees ≤2 µA reverse leakage current at VR = 4 V, as specified in the Electrical Characteristics table. This value is measured under standard test conditions (TA = +25°C) using short-duration pulses to minimize self-heating effects. The device exhibits higher leakage above 4 V, reaching ~7.5 µA at VR = 5.6 V (nominal Zener voltage).

Can DDZ9690Q-7 be used in place of a 5.1 V Zener for improved noise immunity?

No - DDZ9690Q-7 is a fixed 5.6 V Zener and cannot substitute for a 5.1 V part without circuit redesign. Its tighter voltage tolerance (±5%) and lower temperature coefficient (+0.04 %/°C) do offer better stability than many 5.1 V Zeners, but the 0.5 V difference affects reference accuracy, feedback loop setpoints, and overvoltage thresholds in existing designs.

Is the SOD123 package of DDZ9690Q-7 compatible with standard 0805 reflow profiles?

Yes - the SOD123 package uses standard JEDEC-compliant solder paste and withstands peak reflow temperatures up to 260°C for ≤10 seconds. Its matte tin annealed terminals meet IPC-J-STD-020 moisture sensitivity Level 1 requirements, eliminating bake preconditioning needs before assembly.

Does DDZ9690Q-7 require external series resistance in typical shunt regulator configurations?

Yes - like all Zener diodes, DDZ9690Q-7 requires a current-limiting resistor between the input supply and cathode to establish the 50 µA test current (or desired operating current). For a 12 V input regulating to 5.6 V, a 120 kΩ resistor sets ~53 µA, ensuring stable breakdown while staying within 500 mW power limit under worst-case thermal conditions.