1N4756A TR PBFREE

Overview

The Central Semiconductor Corp 1N4756A TR PBFREE is a silicon Zener diode designed for voltage regulation. It features a nominal Zener voltage of 47 V with a ±5% tolerance, tested at a current of 5.5 mA. The device operates in the DO-41 axial through-hole package and dissipates up to 1.0 W at 50°C. Maximum reverse leakage current is 0.25 µA at 35.8 V, while maximum DC forward current reaches 5.0 mA. The unit supports an operating temperature range from -65°C to +200°C.

Feature Summary

• Provides stable voltage regulation within a tight 5% tolerance band across varying conditions.
• Constructed using compression bonded glass technology for high reliability.
• Capable of enduring extreme thermal environments ranging from -65°C to +200°C.

Applications

• Industrial equipment power supplies
• Commercial electronic systems
• Entertainment system circuitry
• Computer hardware components

Procurement Notes

Verify that the specific ordering suffix matches the required plating finish. The PBFREE designation indicates lead-free compliance, whereas TIN/LEAD variants require explicit suffix addition. Confirm package type availability as manufacturing transitions occur. Ensure the requested quantity aligns with standard reel packaging requirements. Cross-reference datasheet revisions to confirm current production status before finalizing orders.

Selection Notes

Select this component when a precise 47 V reference point is required in axial mounting configurations. The 1.0 W power rating accommodates moderate current loads without excessive heat generation. Verify that the application environment remains within the specified -65°C to +200°C operational limits. Consider the low reverse leakage characteristic for sensitive analog circuits requiring minimal current drain during regulation.

Part Context

This part belongs to the 1N4728A through 1N4764A series of 1-watt silicon Zener diodes. The series utilizes the DO-41 case style and offers voltages spanning from 3.3 V to 100 V. All devices share identical mechanical outlines and maximum ratings, differing primarily in their specific Zener voltage breakdown points and corresponding test currents.

Replacement Considerations

No official replacement part numbers are documented for this specific model in the provided manufacturer notices.