1N5249B_T50R

Single Zener Diodes Overview

The onsemi 1N5249B_T50R is a single-channel general-purpose Zener diode with a nominal voltage of 19 V and a maximum power dissipation of 500 mW. It features a ±5% tolerance, a maximum reverse leakage current of 100 nA at 14 V, and a maximum Zener impedance of 23 Ohms. The device operates within a junction temperature range of -65°C to 200°C and utilizes a DO-35 axial through-hole package.

Single Zener Diodes Feature Summary

• Planar die construction for reliable performance
• Suitable for automated assembly processes
• Compliant with EU RoHS directives

Single Zener Diodes Applications

• Voltage regulation circuits
• Voltage reference applications
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the specific suffix _T50R against official manufacturer documentation to confirm tape-and-reel packaging details. Confirm that the component remains available or identify approved substitutes if the part status indicates obsolescence. Ensure all electrical parameters match the design requirements before procurement.

Single Zener Diodes Selection Notes

Select this component when a 19 V Zener reference is required in a through-hole configuration. Consider the 500 mW power rating and 23 Ohm impedance for load regulation needs. Verify thermal management capabilities within the specified operating temperature range for the intended application environment.

Single Zener Diodes Part Context

This component belongs to the 1N5249 series of silicon Zener diodes manufactured by onsemi. The series offers various voltage options within the 2.4 V to 75 V range, all sharing the same 500 mW power dissipation capability and DO-35 glass package format for consistent mechanical integration.

Single Zener Diodes Replacement Considerations

Direct substitute: 1N5249B TR PBFREE (Central Semiconductor Corp). Similar alternative: 1N5249A (Microchip Technology).