PTZTFTE253.0B

Single Zener Diodes Overview

The PTZTFTE253.0B is a single Zener diode manufactured by ROHM Semiconductor, designed for automotive applications under the AEC-Q101 qualification standard. It features a DO-214AC (SMA) surface-mount package with a power dissipation rating of 1 W. The nominal Zener voltage is 30 V, with a maximum Zener impedance of 18 Ohms and a maximum reverse leakage current of 10 µA at 25 V. The device operates within a junction temperature range up to +150 °C and a storage temperature range from -55 °C to +150 °C.

Single Zener Diodes Feature Summary

• Automotive-grade reliability compliant with AEC-Q101 standards
• High ESD tolerance capability
• Compact power mold type construction

Single Zener Diodes Applications

• Constant voltage control circuits in automotive electronics
• Voltage reference applications requiring high reliability
• Protection circuits in automotive grade systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'B' against the official ROHM datasheet to confirm exact electrical tolerances and testing conditions. Ensure the component meets the required AEC-Q101 qualification level for your specific automotive application. Cross-reference the DO-214AC package dimensions with your PCB footprint requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 1 W Zener diode with automotive qualification is required in a compact SMA package. Consider the 18 Ohm impedance and 10 µA leakage specifications for precision voltage regulation needs. Verify that the +150 °C junction temperature rating aligns with the thermal environment of the target circuit design.

Single Zener Diodes Part Context

This part belongs to the PTZTF series of high-power Zener diodes from ROHM Semiconductor. The series is characterized by its small plastic mold package and suitability for automotive use. Similar parts in the family include PTZTFTE253.3B and PTZTFTE2527B, offering different voltage ratings within the same package and performance class.

Single Zener Diodes Replacement Considerations

ROHM indicates that while available, new designs may be directed toward alternative products. Check for newer revisions or equivalent AEC-Q101 qualified Zener diodes in the DO-214AC package from ROHM or other manufacturers if long-term supply stability is a concern.