Diodes Incorporated GDZ7V5LP3-7

Overview

GDZ7V5LP3-7 from Diodes Incorporated is a 7.5 V ±4.8% Zener diode in an ultra-small X3-DFN0603-2 (0.6 × 0.3 mm) leadless package, rated for 250 mW power dissipation at +25°C, with 0.5 µA max reverse leakage at 4.0 V and AEC-Q101 qualification for automotive reliability. It serves as a precision voltage reference or overvoltage clamp in space-constrained, low-power circuits such as battery management ICs and sensor signal conditioning.

For engineers reviewing the GDZ7V5LP3-7 datasheet, GDZ7V5LP3-7 pinout, GDZ7V5LP3-7 application, or GDZ7V5LP3-7 equivalent, key selection criteria include its 7.06–7.84 V zener voltage range at 5 mA test current, ultra-low 0.3 mm profile, cathode-bar-marked DFN termination, and suitability for automated SMT assembly in high-reliability portable and automotive electronics.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across varying load currents. Its thermal resistance of 500 °C/W (junction-to-ambient, FR-4 PCB) and -55 to +150 °C operating temperature range support use in thermally demanding environments without derating below 125 °C.

The device exhibits a typical temperature coefficient near +0.03 %/°C (per Figure 7), indicating minimal drift with ambient changes, and achieves <0.5 µA reverse leakage at VR = 4.0 V - critical for preserving battery life in always-on monitoring nodes.

Key Specifications

Pinout & Package

Package: X3-DFN0603-2 - ultra-compact, leadless, surface-mount plastic package with matte tin-plated copper leadframe; cathode identified by bar marking on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX384-B7V5 and MMSZ5236B-7-F, GDZ7V5LP3-7 delivers the smallest board footprint and lowest leakage among 7.5 V Zeners, making it optimal for miniaturized, battery-critical systems - though its 250 mW rating requires careful thermal layout versus the higher-power alternatives.

Availability

GDZ7V5LP3-7 is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitors, industrial IoT node power management, and smart home motion detector biasing requiring stable component supply and long-term lifecycle assurance.

Supply support for GDZ7V5LP3-7 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, headquartered in Plano, Texas, serving automotive, industrial, computing, and consumer markets with high-reliability components.

This device belongs to the GDZ-LP3 ultra-miniature Zener diode product line, engineered specifically for space-constrained, low-leakage voltage reference and clamping in battery-powered and automotive electronics.

FAQ

What is the maximum reverse voltage (V_R) that GDZ7V5LP3-7 can withstand before breakdown?

The device is specified to maintain ≤0.5 µA reverse leakage at V_R = 4.0 V. Breakdown occurs at its nominal zener voltage of 7.5 V (min 7.06 V, max 7.84 V) when tested at I_ZT = 5 mA per DS35065 Rev. 19. It is not rated for sustained operation above V_Z; operation beyond this point risks thermal runaway if power dissipation exceeds 250 mW.

Is GDZ7V5LP3-7 suitable for use in reflow soldering processes?

Yes - it is qualified for standard Pb-free reflow profiles per J-STD-020, with Moisture Sensitivity Level 1 (unlimited floor life at ≤30°C/60% RH). The matte tin finish ensures reliable solder wetting, and the X3-DFN0603-2 package is compatible with 0201-class pick-and-place equipment and stencil printing.

How does the temperature coefficient affect regulation accuracy over temperature?

Per Figure 7 in DS35065, GDZ7V5LP3-7 exhibits a typical temperature coefficient of approximately +0.03 %/°C near 7.5 V. Over -40 to +125°C, this results in ~±50 mV total drift (±0.67%), which remains within its initial ±4.8% tolerance band - making it suitable for non-precision reference roles where absolute accuracy is secondary to low leakage and size.

Can GDZ7V5LP3-7 replace GDZ7V5LP3 in a design?

Yes - the "-7" suffix denotes tape-and-reel packaging (10,000 units per reel); electrically and mechanically, GDZ7V5LP3-7 is identical to GDZ7V5LP3. The base part number without "-7" refers to the same die and package - only packaging differs. No layout or schematic changes are required for substitution.