PTZTE253.9B

Single Zener Diodes Overview

The PTZTE253.9B is a single Zener diode manufactured by Rohm Semiconductor, designed for surface mount applications in the DO-214AC (SMA) package. It features a maximum power dissipation of 1000 mW and a nominal Zener voltage of 3.9 V with a tolerance of ±6%. The device supports an operating temperature range from -55°C to +150°C and includes AEC-Q101 qualification for automotive reliability.

Single Zener Diodes Feature Summary

• High ESD resistance capability
• Compact plastic mold type design
• Automotive grade qualification

Single Zener Diodes Applications

• Automotive electronic circuits
• Voltage regulation modules
• Transient voltage suppression

Single Zener Diodes Procurement Notes

Verify the specific suffix 'B' against official Rohm documentation to confirm exact electrical tolerances and packaging details. Ensure compatibility with DO-214AC footprint requirements. Confirm current availability status as product lifecycles may change. Cross-reference datasheet revisions for any updates to thermal or electrical specifications before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a robust, high-power Zener diode is required for space-constrained surface mount designs. The DO-214AC package offers superior thermal performance compared to smaller packages. Consider the AEC-Q101 qualification if the application demands automotive-grade reliability and long-term stability under varying environmental conditions.

Single Zener Diodes Part Context

This part belongs to the PTZ33B series of Zener diodes from Rohm Semiconductor. The series provides a range of voltage options within the SMA package, balancing power handling capabilities with compact form factors. These components are engineered for general-purpose voltage regulation and protection tasks in modern electronic systems.

Single Zener Diodes Replacement Considerations

Check for updated replacement part numbers such as PTZTFTE253.9B or similar variants within the same series, as older models may be designated as Not Recommended for New Designs (NRND). Verify pinout and electrical parameter equivalence before substituting.