1N4620 BK PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4620 BK PBFREE is a silicon Zener diode designed for low leakage, low current, and low noise applications. It operates within the 1N4614 through 1N4627 series, featuring a nominal Zener voltage of 3.3 V with a 5% tolerance range from 3.135 V to 3.465 V. The device dissipates up to 250 mW at 25°C and maintains junction temperatures between -65°C and +200°C. Electrical characteristics include a maximum reverse current of 1.5 µA at 1.5 V, a maximum Zener impedance of 7.5 Ω at the test current of 250 µA, and a constant noise density of 1.0 µV/√Hz at 250 µA.

Single Zener Diodes Feature Summary

• Engineered specifically for low leakage, low current, and low noise operational environments
• Provides stable voltage regulation with a tight 5% tolerance band around the nominal rating
• Constructed using silicon technology optimized for minimal electrical interference

Single Zener Diodes Applications

• Low noise voltage reference circuits
• Precision low current regulation tasks
• Sensitive analog signal conditioning stages

Single Zener Diodes Procurement Notes

Verify that the component matches the specific 1N4620 designation within the 1N4614-1N4627 series. Confirm the DO-35 package style aligns with board layout requirements. Ensure the PBFREE suffix indicates compliance with lead-free plating standards if required by assembly specifications. Cross-reference the marking code C4620 for physical identification during inspection.

Single Zener Diodes Selection Notes

Select this component when circuit designs demand minimal noise generation alongside precise low-voltage regulation. The 250 mW power dissipation rating suits applications with moderate thermal loads. Consider the DO-35 axial leaded format for through-hole mounting strategies. Evaluate the 7.5 Ω impedance specification against load regulation requirements in the target design.

Single Zener Diodes Part Context

This part belongs to the 1N4614 through 1N4627 series of silicon Zener diodes manufactured by Central Semiconductor Corp. The series covers voltages from 1.8 V to 6.2 V, all sharing the same 250 mW power rating and 5% tolerance standard. These devices are distinct from higher voltage options available in the 1N4099 series.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 3.3 V nominal Zener voltage, 250 mW power rating, and DO-35 package. Verify that alternative components maintain equivalent low noise density and impedance characteristics to ensure circuit performance parity.