CMSZDA47V TR PBFREE

Overview

The CMSZDA47V TR PBFREE is a dual common cathode Zener diode array manufactured by Central Semiconductor Corp. It features a nominal Zener voltage of 47 V with a ±5% tolerance and a maximum power dissipation of 275 mW. The device is housed in an SOT-323 surface-mount package, measuring approximately 1.6 mm x 0.8 mm x 0.8 mm. Key electrical parameters include a maximum reverse leakage current of 1 µA at 2 V and a forward voltage of 900 mV at 10 mA. The component operates within a temperature range of -65°C to +150°C and exhibits a Zener impedance of 40 Ohms.

Feature Summary

• Dual common cathode configuration for space-efficient circuit design
• Compact SOT-323 surface-mount package suitable for high-density PCB layouts
• Wide operating temperature range from -65°C to +150°C

Applications

• Voltage reference circuits requiring dual stable voltage levels
• Clamping and protection stages in signal processing paths
• Biasing networks in low-power electronic devices

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to ensure correct packaging and RoHS compliance status. Confirm that the requested quantity aligns with standard reel sizes or cut tape availability. Cross-reference the part number with official distributor catalogs to validate current production status and lead times before finalizing procurement plans.

Selection Notes

Select this component when a dual Zener solution is required in a minimal footprint. Ensure the circuit design accommodates the 275 mW power dissipation limit and the 40 Ohm Zener impedance. Verify that the 47 V breakdown voltage matches the target application requirements and that the SOT-323 package fits the available board space constraints.

Part Context

This part belongs to the CMSZDA series of dual Zener arrays from Central Semiconductor. These components are designed to replace discrete dual-diode configurations, saving board area. The series typically includes various voltage options ranging from low voltages up to higher breakdown values, all sharing similar package and thermal characteristics.

Replacement Considerations

Direct replacements must match the dual common cathode configuration, 47 V Zener voltage, ±5% tolerance, and SOT-323 package. Verify equivalent power dissipation and leakage current specifications. Check for pinout compatibility if substituting with parts from other manufacturers.