CMSZDA43V TR TIN/LEAD

Overview

The CMSZDA43V TR TIN/LEAD is a dual Zener diode array manufactured by Central Semiconductor Corp. It features a common anode configuration with two silicon elements housed in a SOT-323 surface-mount package containing three terminals. The device operates as a unidirectional voltage regulator diode with a nominal Zener voltage of 12V and a tolerance of ±5%. It has a maximum power dissipation rating of 0.275W (275mW) at 25°C ambient temperature. The component is designed for operation within a junction temperature range of -65°C to +150°C.

Feature Summary

• Dual Zener diode array integrated into a single compact surface-mount package
• Common anode configuration simplifies circuit layout for voltage regulation applications
• Silicon construction ensures stable unidirectional voltage clamping performance

Applications

• Voltage reference circuits requiring dual regulated potentials
• Transient voltage suppression in low-power signal lines
• Clamping protection for sensitive input stages in consumer electronics

Procurement Notes

Verify the specific ordering suffix indicates the tin/lead terminal finish, as lead-free variants exist under similar part numbers. Confirm the tape-and-reel packaging designation matches production requirements. Cross-reference the manufacturer's current datasheet to ensure compliance with RoHS directives if applicable, noting that tin/lead finishes may not meet all environmental regulations.

Selection Notes

Select this component when a dual Zener solution with a common anode is required in a minimal footprint. Ensure the 0.275W power rating suffices for the expected thermal environment. Verify that the 12V Zener voltage aligns with the target circuit's regulation needs. Consider the SOT-323 package dimensions against available PCB space constraints.

Part Context

This part belongs to the CMSZDA series of dual Zener diodes from Central Semiconductor. Variants in this family include lead-free versions and different reel configurations. The core electrical characteristics remain consistent across the series, with differences primarily in terminal finish and packaging format. This specific variant specifies a tin/lead finish for the leads.

Replacement Considerations

Direct substitutes include CMSZDA12V TR LEADFREE or CMSZDA12V BKLEADFREE for identical electrical performance with a lead-free finish. Other compatible parts from Central Semiconductor within the same series offer equivalent functionality. Verify pinout compatibility before substitution.