CMSZDA3V3 TR PBFREE

Overview

The CMSZDA3V3 TR PBFREE is a dual common anode Zener diode manufactured by Central Semiconductor Corp. It utilizes silicon epitaxial planar technology and is housed in a surface-mount SOT-323 (SC-70) package with three terminals. The device features a nominal Zener voltage of 3.3V with a tolerance of 5%. It is designed for operation within a temperature range of -65°C to +150°C junction temperature. The component is lead-free and RoHS compliant, intended for compact circuit applications requiring precise voltage regulation.

Feature Summary

• Dual common anode configuration for space-efficient designs
• Silicon epitaxial planar construction for reliability
• Surface-mount SOT-323 packaging for automated assembly

Applications

• Voltage reference circuits
• Clamping and protection applications
• Portable electronic devices

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure that the procurement documentation explicitly states compliance with RoHS directives and confirms the absence of restricted substances. Cross-reference the part number with official distributor catalogs to validate authenticity and traceability before finalizing orders.

Selection Notes

Select this component when a low-profile dual Zener solution is required for signal conditioning or voltage limiting. The SOT-323 footprint allows for high-density PCB layouts. Engineers should verify thermal management requirements based on the specified power dissipation limits and ensure that the operating voltage aligns with the 3.3V nominal specification for the target application.

Part Context

This part belongs to the CMSZDA series of dual Zener diodes from Central Semiconductor. These components are engineered for general-purpose electronics where small form factors are critical. The series offers various voltage options within the same package style, facilitating standardized inventory management across different product lines while maintaining consistent mounting characteristics.

Replacement Considerations

Direct replacements must match the SOT-323 package, dual common anode configuration, and 3.3V Zener voltage rating. Verify pinout compatibility and dynamic impedance characteristics to ensure equivalent performance in clamping applications.