Diodes Incorporated GDZ13LP3-7

Overview

GDZ13LP3-7 from Diodes Incorporated is a 13V ±3.5% ultra-small leadless Zener diode in X3-DFN0603-2 package (0.6 × 0.3 mm, 0.3 mm profile), rated for 250 mW power dissipation at +25°C, with 0.1 µA max reverse leakage at 8.0 V and AEC-Q101 qualified for automotive reliability. It serves as precision voltage reference or overvoltage clamp in space-constrained battery-powered sensor nodes.

For engineers reviewing the GDZ13LP3-7 datasheet, GDZ13LP3-7 pinout, GDZ13LP3-7 application, or GDZ13LP3-7 equivalent, key selection criteria include zener voltage tolerance (±3.5%), low leakage (<0.1 µA @ VR = 8.0 V), thermal resistance (500 °C/W), AEC-Q101 qualification, and compatibility with automated SMT assembly on FR-4 PCBs.

Technical Context

This device operates as a two-terminal silicon Zener diode with sharp reverse breakdown at nominal 13 V, designed for stable voltage regulation under low-current conditions (IZT = 5 mA). Its DFN0603 footprint enables high-density layout while maintaining thermal performance via copper leadframe and matte tin terminations.

The cathode-bar marking and defined terminal polarity (Pin 1 = Cathode, Pin 2 = Anode) ensure correct orientation during automated placement. Thermal derating follows a linear curve to zero power at +150°C ambient, per Figure 1 in DS35065 Rev. 19–2.

Key Specifications

Pinout & Package

Package: X3-DFN0603-2 - ultra-compact 0.6 mm × 0.3 mm molded plastic case with 0.3 mm profile, UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Availability

GDZ13LP3-7 is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitors, industrial IoT edge nodes, and smart home smoke detectors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for GDZ13LP3-7 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 automotive, industrial, and consumer applications.

GDZ13LP3-7 belongs to the GDZ-LP3 series of ultra-miniature Zener diodes engineered specifically for space-constrained, low-leakage voltage reference and clamping in battery-powered and automotive electronics.

FAQ

What is the exact zener voltage tolerance for GDZ13LP3-7 at 5 mA test current?

The GDZ13LP3-7 has a guaranteed zener voltage range of 12.35 V to 13.65 V at IZT = 5 mA, corresponding to ±3.5% tolerance about the nominal 13.0 V value, as specified in the Electrical Characteristics table of DS35065 Rev. 19–2.

Is GDZ13LP3-7 compatible with lead-free reflow soldering processes?

Yes - GDZ13LP3-7 features matte tin over copper leadframe terminations, fully compliant with IPC-J-STD-020 moisture sensitivity level 1 and qualified for standard Pb-free reflow profiles (peak 260°C), with no special pre-bake required.

How does the thermal resistance of 500 °C/W translate to practical PCB layout requirements?

At 250 mW dissipation, a 500 °C/W RθJA implies 125°C junction rise above ambient - so with TA = +25°C, TJ reaches +150°C. To stay within safe limits, designers must follow Diodes' suggested pad layout (X3-DFN0603-2) with minimum 0.38 mm × 0.23 mm copper pads and thermal vias if ambient exceeds +75°C.

Can GDZ13LP3-7 replace GDZ12LP3-7 or GDZ15LP3-7 in existing designs?

No direct drop-in replacement - GDZ13LP3-7's 13 V nominal zener voltage differs from GDZ12LP3-7 (12 V) and GDZ15LP3-7 (15 V); substitution requires verification of circuit margin at new breakdown voltage and potential recalibration of reference or clamp thresholds.