GDZT2R3.9

Single Zener Diodes Overview

The GDZT2R3.9 is a single Zener diode manufactured by ROHM Semiconductor, designed for surface-mount applications in the GMD2 package (SOD-723). It features a nominal Zener voltage of 3.9 V with a tolerance range of 3.89 V to 4.16 V. The device operates at a test current of 5 mA and dissipates up to 100 mW of power. Key electrical characteristics include a maximum reverse leakage current of 5 uA and a Zener impedance of 100 ohms. It supports a maximum operating temperature of +150 °C and a storage temperature range from -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation within a tight tolerance band for precision circuits.
• Engineered for compact surface-mount integration using the GMD2 footprint.
• Capable of reliable operation under elevated thermal conditions up to 150 °C.

Single Zener Diodes Applications

• Voltage stabilization in portable electronic devices
• Reference voltage generation in measurement instruments
• Over-voltage protection in low-power circuitry

Single Zener Diodes Procurement Notes

Verify component authenticity against official ROHM documentation before integration. Confirm that the GMD2 package dimensions align with your PCB layout constraints. Ensure thermal management strategies accommodate the 100 mW dissipation rating during continuous operation. Cross-reference specifications with the latest datasheet to account for potential manufacturing updates or revisions.

Single Zener Diodes Selection Notes

Select this component when a precise 3.9 V reference is required in space-constrained designs. The GMD2 package offers a smaller footprint compared to traditional SOD-523 variants. Consider the 100 mW power limit and 5 uA leakage current when designing high-impedance nodes. Verify compatibility with automated pick-and-place equipment due to the small form factor.

Single Zener Diodes Part Context

This part belongs to ROHM's discrete semiconductor portfolio, specifically within their Zener diode lineup. It serves as a voltage reference or clamp in analog and digital circuits. The GMD2 package represents a miniaturized solution suitable for modern consumer electronics and IoT devices where board space is limited.

Single Zener Diodes Replacement Considerations

The VDZT2R3.9B is listed as a similar specification replacement with a Last Time Buy status. The CDZVT2R3.9B is recommended but utilizes a different VMN2M/SOD-923 package. Verify pinout and mechanical dimensions before substituting.