1N5242BTR

Single Zener Diodes Overview

The onsemi 1N5242BTR is a single-channel general-purpose Zener diode with a nominal voltage of 12.0 V and a maximum power dissipation of 500 mW. It features a ±5% tolerance, operates within a junction temperature range of −65°C to +200°C, and utilizes an axial lead DO-35 package (CASE 017AG). The device exhibits a typical voltage temperature coefficient of 0.077%/°C, a maximum Zener impedance of 30 Ω at a test current of 20 mA, and a maximum reverse leakage current of 1.0 µA at 9.1 V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation through avalanche breakdown characteristics in the reverse bias region.
• Features a hermetically sealed glass axial lead package designed for high thermal stability and robust mechanical mounting.
• Maintains consistent voltage performance across a wide operating temperature range from −65°C to +200°C.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise potential levels
• Overvoltage protection stages in electronic systems
• Clamping applications for transient suppression

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required shipping configuration, as the 'TR' designation indicates tape and reel packaging rather than bulk bags. Confirm the specific device code marking aligns with the 1N5242B specification. Ensure compliance with RoHS and halide-free requirements if mandated by the design specifications before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 12 V reference point is required with moderate precision. The 500 mW rating supports standard signal-level regulation tasks. Verify that the 30 Ω impedance meets circuit sensitivity requirements. Consider the axial lead format for through-hole assembly processes where surface mount options are not feasible.

Single Zener Diodes Part Context

This part belongs to the 1N5221B–1N5252B series of Zener diodes manufactured by onsemi. The series covers a broad voltage range from 2.2 V to 24 V using a standardized DO-35 axial lead package. All devices share identical physical dimensions and thermal characteristics, differing primarily in their specified breakdown voltages and associated electrical parameters.

Single Zener Diodes Replacement Considerations

Cross-reference with Vishay 1N5242B-TR or Microchip Technology 1N5242BUR-1/TR for equivalent specifications. Verify package compatibility and electrical tolerances match the original design requirements before substitution.