1N4706 TR PBFREE

Overview

The Central Semiconductor Corp 1N4706 TR PBFREE is a silicon Zener diode designed for low-level voltage regulation applications. It operates within the 1N4678 through 1N4717 series, featuring a nominal Zener voltage of 19 V with a 5% tolerance range from 18.05 V to 19.95 V. The device dissipates up to 500 mW at 75°C and maintains a maximum reverse leakage current of 0.05 μA at 14.4 V. It utilizes a DO-35 axial leaded package and supports junction temperatures between -65°C and +200°C.

Feature Summary

• Designed for extremely low operating current requirements of 50 μA
• Provides stable voltage regulation with tight 5% tolerance
• Features very low maximum reverse leakage current
• Constructed in a glass axial-leaded DO-35 case

Applications

• Low power voltage reference circuits
• Precision voltage regulation requiring minimal quiescent current
• Signal clamping and protection in sensitive analog stages

Procurement Notes

Verify that the ordering suffix PBFREE confirms lead-free plating compliance as specified by the manufacturer. Confirm the reel packaging configuration matches the required quantity increments for automated assembly processes. Ensure the component meets RoHS directives before final integration into the bill of materials.

Selection Notes

Select this component when circuit designs demand low test currents around 50 μA and minimal leakage. The DO-35 package suits through-hole mounting constraints. Evaluate thermal derating requirements if ambient temperatures exceed standard conditions to ensure the 500 mW dissipation limit is not exceeded during operation.

Part Context

This part belongs to the 1N4678 through 1N4717 series of low-level silicon Zener diodes manufactured by Central Semiconductor. The series covers voltages from 1.8 V to 43 V, all sharing identical mechanical outlines and electrical testing parameters at 50 μA. The 1N4706 specifically addresses the 19 V nominal requirement within this standardized lineup.

Replacement Considerations

Cross-reference with other manufacturers offering 1N4706 specifications in DO-35 packages. Verify that substitute parts maintain the 50 μA test current and 500 mW power rating to ensure functional equivalence in low-current regulation scenarios.