PTZTE2518A

Single Zener Diodes Overview

The PTZTE2518A is a single Zener diode from ROHM Semiconductor with a nominal voltage of 18V and a power dissipation of 1W. It utilizes the PMDS (SOD-128) surface-mount package. Key electrical parameters include a maximum reverse leakage current of 10µA, a Zener impedance of 12 Ohms, and a temperature coefficient of 15 mV/°C. The device supports a junction temperature up to 150°C and operates within a storage range of -55°C to 150°C.

Single Zener Diodes Feature Summary

• High ESD tolerance capability
• Small power plastic molded package design
• Silicon epitaxial planar structure for reliability

Single Zener Diodes Applications

• Voltage regulation circuits
• Circuit protection applications
• General purpose voltage reference

Single Zener Diodes Procurement Notes

Verify the lifecycle status carefully, as sources indicate this part may be marked as Not Recommended for New Designs (NRND). Confirm the specific ordering suffix matches the required voltage tolerance and package variant. Ensure compatibility with existing PCB footprints for the SOD-128 PMDS package before finalizing procurement decisions.

Single Zener Diodes Selection Notes

Select this component for designs requiring a 1W Zener diode in a compact surface-mount form factor. Consider the 15 mV/°C temperature coefficient for thermal stability requirements. Evaluate the 10µA reverse leakage current against circuit sensitivity needs. Verify that the 12 Ohm Zener impedance meets the dynamic performance specifications of the target application.

Single Zener Diodes Part Context

This component belongs to the PTZTE series of small power plastic Zener diodes manufactured by ROHM Semiconductor. These devices are designed for voltage regulation and protection tasks. The series offers various voltage options within the same physical footprint, allowing for standardized supply chains across different product lines requiring similar power handling capabilities.

Single Zener Diodes Replacement Considerations

Check for direct substitutes within the PTZTE family or equivalent 1W SOD-128 Zener diodes from other manufacturers. Ensure replacement parts match the 18V nominal voltage, 1W power rating, and pinout configuration. Verify that alternative components meet the same ESD and thermal performance standards.