1N4744A BK PBFREE

Overview

The Central Semiconductor Corp 1N4744A BK PBFREE is a silicon Zener diode designed for voltage regulation. It features a nominal Zener voltage of 15 V with a 5% tolerance range spanning from 14.25 V to 15.75 V. The device operates within the DO-41 axial package and supports a maximum power dissipation of 1.0 W at 50°C ambient temperature. Electrical characteristics include a test current of 17 mA, a maximum reverse leakage current of 5.0 μA at 11.4 V, and a DC current limit of 304 mA. The component functions reliably across an operating and storage temperature range of -65°C to +200°C.

Feature Summary

• Provides stable voltage regulation utilizing silicon Zener technology
• Engineered for industrial, commercial, entertainment, and computer applications
• Features high reliability and robust thermal performance

Applications

• Industrial equipment voltage regulation
• Commercial electronic circuit protection
• Entertainment system power management
• Computer hardware voltage stabilization

Procurement Notes

Verify compliance with RoHS directives before integration. Confirm that the specified suffix indicates lead-free plating status as required by project specifications. Ensure procurement channels are authorized to prevent counterfeit components. Validate that the DO-41 package dimensions match existing board layouts. Check for any specific environmental compliance requirements relevant to the target market.

Selection Notes

Select this component when a precise 15 V reference is required in axial through-hole designs. Consider the 5% tolerance limits for precision circuitry. Evaluate the 1.0 W power rating against expected thermal loads. Verify that the -65°C to +200°C temperature range meets operational extremes. Compare impedance values against noise-sensitive application requirements.

Part Context

This part belongs to the 1N4728A through 1N4764A series of 1-watt silicon Zener diodes manufactured by Central Semiconductor. The series covers a voltage range from 3.3 V to 100 V with consistent 5% tolerance. These devices utilize the standard DO-41 case style for axial mounting. The manufacturer provides extensive design support including SPICE models and technical data sheets for the complete family.

Replacement Considerations

No direct replacement part numbers are documented for this specific model in official notices. Some higher voltage variants in the same series have been discontinued without substitutes. Contact [email protected] for alternate source assistance if necessary.