CMPZDA4V7 TR PBFREE

Overview

The CMPZDA4V7 TR PBFREE is a Zener diode manufactured by Central Semiconductor Corp, designed for low-level voltage regulation applications. It features a nominal Zener voltage of 4.7 V with a test current of 5 mA and a maximum power dissipation of 350 mW. The component utilizes an SOT-23 surface-mount package configuration. Electrical specifications include a reverse leakage current of 1 µA at the rated voltage and a dynamic impedance of 70 Ω. The device operates within a junction temperature range of -65°C to +150°C and complies with RoHS standards.

Feature Summary

• Provides stable voltage reference capabilities in compact surface-mount form factors
• Engineered for low-power regulation tasks requiring minimal quiescent current
• Constructed using silicon planar technology for enhanced reliability

Applications

• Voltage reference circuits in portable electronic devices
• Clamping and protection stages in signal processing paths
• Biasing networks for transistor amplifier stages

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering part number matches the exact voltage tolerance and package type required for the design specification.

Selection Notes

Select this component for designs requiring a precise 4.7 V reference point with limited board space constraints. Evaluate the 350 mW power rating against expected thermal conditions to ensure safe operation. Compare the 70 Ω dynamic impedance against circuit sensitivity requirements to determine suitability for noise-critical applications.

Part Context

This part belongs to the CMPZDA series of low-power Zener diodes from Central Semiconductor. The series offers various voltage options within the SOT-23 package, providing designers with standardized solutions for voltage regulation needs across consumer and industrial electronics sectors.

Replacement Considerations

Consult official substitution guides for equivalent Zener diodes with matching 4.7 V ratings and SOT-23 footprints. Verify pinout compatibility and thermal characteristics before replacing the original component in existing assemblies.