2N5226 TIN/LEAD

Overview

The Central Semiconductor Corp 2N5226 TIN/LEAD is a silicon planar Zener diode designed for voltage regulation and reference applications. It features a nominal breakdown voltage of 3.3 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW at ambient temperature. Key electrical characteristics include a maximum reverse leakage current of 25 µA at 1 V and a maximum Zener impedance of 28 Ohms. The forward voltage drop is limited to 900 mV at 10 mA. It operates within a junction temperature range of -65°C to +150°C and utilizes the SOD-123 surface-mount package.

Feature Summary

• Provides stable voltage regulation with a nominal 3.3 V breakdown voltage
• Supports high thermal stability with a maximum junction temperature of 150°C
• Features low leakage current for efficient standby operation
• Utilizes a compact SOD-123 surface-mount footprint

Applications

• Voltage reference circuits in precision measurement equipment
• Over-voltage protection stages in consumer electronics
• Clamping applications in signal processing paths
• Power supply regulation modules

Procurement Notes

Verify the specific plating suffix required, as the part number indicates Tin/Lead composition which may differ from standard Pb-free variants. Confirm RoHS compliance status and lead time availability directly with the manufacturer or authorized distributors, as inventory levels for specific plating options can vary. Ensure the ordering documentation explicitly states the TIN/LEAD designation to avoid receiving PBFREE equivalents.

Selection Notes

Select this component when a precise 3.3 V reference is required in a surface-mount design. Consider the 500 mW power rating and 28 Ohm impedance for load regulation requirements. Evaluate the SOD-123 package dimensions against PCB layout constraints. Compare the 25 µA leakage specification against circuit sensitivity needs. Verify that the operating temperature range meets the environmental conditions of the final assembly.

Part Context

This component belongs to the CMHZ5226 series of Zener diodes manufactured by Central Semiconductor Corp. It shares the same electrical specifications as the CMHZ5226B variant but differs in packaging configuration. The series is designed for general-purpose voltage regulation tasks requiring small form factors. Central Semiconductor produces this device using silicon planar technology for consistent performance across production batches.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.