1N5221BTA

Single Zener Diodes Overview

The 1N5221BTA is a single silicon Zener diode manufactured by onsemi, designed for voltage regulation applications. It features a nominal Zener voltage of 2.4 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 500 mW and operates in the DO-35 axial through-hole package. Key electrical characteristics include a maximum Zener impedance (Zzt) of 30 Ohms and a reverse leakage current of 100 µA at 1 V. This component belongs to the standard 1N5221B series, providing reliable performance in industrial and commercial circuits.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 2.4 V Zener breakdown voltage
• Constructed from high-reliability silicon material for consistent performance
• Available in a compact DO-35 axial leaded package suitable for through-hole mounting

Single Zener Diodes Applications

• Industrial voltage regulation circuits
• Commercial electronic equipment power supplies
• Computer application voltage references

Single Zener Diodes Procurement Notes

Verify product status as obsolete or end-of-life before procurement planning. Confirm exact manufacturer origin, as multiple vendors produce this part number. Ensure package type matches DO-35 requirements. Check for valid replacement components if new production is required. Validate datasheet revisions against specific manufacturing lot requirements.

Single Zener Diodes Selection Notes

Select this component when a precise 2.4 V reference is needed in a through-hole design. Consider the 500 mW power rating for thermal management in the circuit layout. Evaluate the ±5% tolerance against system accuracy requirements. Compare impedance specifications if low-noise regulation is critical for the application environment.

Single Zener Diodes Part Context

This part belongs to the widely recognized 1N5221B series of Zener diodes. Multiple manufacturers, including Central Semiconductor and Fairchild, produce equivalent parts under similar numbering schemes. The TA suffix typically denotes specific packaging or tape-and-reel configurations within the onsemi portfolio, though availability may vary across distributors.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers include 1N5221DP from Micro Commercial Components. Other equivalents exist under generic 1N5221B designations from various semiconductor manufacturers. Verify pinout compatibility and thermal characteristics when substituting.