1N4744A_T26R

Overview

The onsemi 1N4744A_T26R is a silicon planar Zener diode housed in a DO-41 glass axial leaded package. It provides a nominal voltage of 15 V with a tolerance of ±5%. The device dissipates up to 1 W at a lead temperature of 50°C or lower, derating by 6.67 mW/°C above this threshold. Operating and storage temperatures range from -65°C to +200°C. Electrical characteristics include a maximum dynamic impedance of 14 Ω at the test current of 17 mA, a leakage current of 0.25 μA at 11.4 V reverse bias, and a non-repetitive peak reverse current capability of 304 mA.

Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Features hermetically sealed glass construction for corrosion resistance
• Provides sharp reverse characteristic breakdown behavior
• Offers low reverse leakage current levels

Applications

• Voltage stabilization circuits
• Clipping applications
• Voltage regulation over broad operating currents and temperature ranges

Procurement Notes

Verify that the ordering suffix _T26R corresponds to the specific reel packaging configuration defined by onsemi. Confirm compliance with RoHS directives and ensure the component meets the required JEDEC registration standards for the 1N47xxA series before finalizing procurement specifications.

Selection Notes

Select this component when a 15 V reference is required within the standard 1N4728A through 1N4758A series. Ensure the application environment stays within the specified -65°C to +200°C temperature range. Verify that the power dissipation requirements do not exceed 1 W without proper thermal derating considerations for ambient temperatures above 50°C.

Part Context

This part belongs to the 1N4728A through 1N4758A family of 1-watt Zener diodes manufactured by onsemi. These devices are widely recognized for their reliability in general-purpose voltage regulation tasks. The DO-41 package allows for flexible axial-lead mounting, making them suitable for through-hole PCB designs requiring robust voltage clamping or reference capabilities.

Replacement Considerations

Compatible substitutes include the Vishay ZM4744A and Panasonic ERZ-E15V101. Cross-reference datasheets to confirm identical voltage tolerances and impedance values. Ensure replacement packages match the DO-41 form factor for direct board integration.