1N5243BTR

Single Zener Diodes Overview

The onsemi 1N5243BTR is a single Zener diode with a nominal voltage of 13.0 V, ranging from 12.35 V to 13.65 V at a test current of 9.5 mA. It features a maximum power dissipation of 500 mW and operates within a junction temperature range of -65°C to +200°C. The device utilizes an axial lead DO-35 package (Case 017AG) and provides a typical voltage temperature coefficient of 0.079 %/°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using the Zener breakdown effect in a glass-sealed axial lead package.
• Designed for high thermal stability with an extended operating junction temperature range up to +200°C.
• Offers tight manufacturing tolerance for precise voltage control in electronic circuits.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in power supplies
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'TR' corresponds to tape and reel packaging as specified in the official datasheet. Confirm the component meets the required RoHS compliance standards before procurement. Ensure the supplier provides traceability documentation matching the manufacturer's part number and batch codes.

Single Zener Diodes Selection Notes

Select this component when a 13 V regulation point is required with a 500 mW power budget. Consider the 9.5 mA test current requirement for accurate biasing. Evaluate the 0.079 %/°C temperature coefficient against ambient thermal conditions to ensure circuit stability over the full operating temperature range.

Single Zener Diodes Part Context

This component belongs to the 1N5221B through 1N5252B series of 0.5 W Zener Voltage Regulators. The series covers a wide voltage selection from 2.4 V to 24.0 V in standard 5% tolerances. These devices utilize a hermetically sealed glass axial-lead construction suitable for general-purpose regulation tasks.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' 1N5243B variants meeting identical electrical specifications. Verify pinout compatibility and package dimensions (DO-35) during replacement. Cross-reference thermal ratings and leakage currents to ensure equivalent performance under load.

Single Zener Diodes FAQ

What is the maximum reverse leakage current for the 1N5243B?

The maximum reverse leakage current is 0.5 µA when measured at a reverse voltage of 9.9 V.

How does the Zener impedance vary for this device?

The maximum Zener impedance (ZZ) is specified at 13 Ohms when tested at the rated current of 9.5 mA.