1N5225B

Single Zener Diodes Overview

The onsemi 1N5225B is a single silicon Zener diode housed in an axial lead DO-35 (DO-204AH) glass package. It provides a nominal Zener voltage of 3.0 V with a tolerance range of 2.850 V to 3.150 V at a test current of 20 mA. The device dissipates up to 500 mW and maintains operation within a junction temperature range of -65°C to +200°C. Key electrical parameters include a maximum reverse leakage current of 50 nA at 1.0 V, a dynamic impedance of 29 Ohms, and a temperature coefficient of -0.075 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation through avalanche breakdown characteristics in the low-voltage range.
• Features hermetically sealed glass construction for reliable performance across extreme thermal environments.
• Designed for high-speed switching applications due to fast transition times inherent to the structure.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise low-voltage stability
• Overvoltage protection stages in sensitive electronic systems
• Clamping and clipping waveforms in signal processing

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required shipping format, such as bulk bags or tape and reel configurations. Confirm compliance requirements including RoHS and halide-free status before finalizing procurement. Ensure the component meets specific screening levels if operating in harsh environments.

Single Zener Diodes Selection Notes

Select this component when a 3.0 V regulation point is required with tight tolerance limits. Evaluate the negative temperature coefficient to ensure it aligns with circuit thermal compensation strategies. Consider the power dissipation capabilities relative to the expected load current and ambient operating conditions.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5252B series of 0.5 W Zener Voltage Regulators. The series covers a wide selection of voltages from 2.4 V to 200 V. These devices utilize standard JEDEC axial lead packages suitable for through-hole mounting technologies.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering the 1N5225B designation. Verify pinout compatibility and package dimensions against existing board layouts. Ensure equivalent electrical specifications are met for critical design margins.