BZX84C3V9S-7-F

Overview

The BZX84C3V9S-7-F is a dual surface mount Zener diode array manufactured by Diodes Incorporated. It features planar die construction within an SOT-363 package, providing two independent Zener diodes with a nominal breakdown voltage of 3.9 V and a tolerance of ±5%. The device supports a maximum power dissipation of 200 mW at 25°C ambient temperature, with a thermal resistance of 625 °C/W. Electrical characteristics include a maximum Zener impedance (ZZT) of 90 Ω at a test current of 5 mA and a maximum reverse leakage current of 3 µA at 1 V. The forward voltage is rated at 0.9 V maximum at 10 mA. Operating and storage temperatures range from -65°C to +150°C.

Feature Summary

• Dual configuration containing two independent Zener diodes in a single ultra-small surface mount package.
• Planar die construction designed for automated assembly processes.
• Lead-free plating with matte tin finish annealed over Alloy 42 leadframe.

Applications

• General regulation functions
• Voltage reference applications

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging details. Confirm RoHS compliance status as manufacturing compounds may vary based on date codes. Ensure the component meets environmental requirements for the intended application before procurement.

Selection Notes

Select this component when a dual Zener configuration is required in space-constrained designs. Verify that the 3.9 V nominal voltage and ±5% tolerance align with circuit specifications. Check thermal constraints to ensure the 200 mW power dissipation limit is not exceeded under operating conditions.

Part Context

This part belongs to the BZX84C series of low-power voltage regulator diodes. The series offers normalized E24 tolerance ranges including ±1%, ±2%, and approximately ±5%. The BZX84C3V9S variant specifically provides the 3.9 V breakdown voltage option within the dual-diode SOT-363 package lineup.

Replacement Considerations

BZX84C3V9S-7-F