1N5248B

Single Zener Diodes Overview

The onsemi 1N5248B is a single silicon Zener diode housed in a hermetically sealed glass axial lead package (DO-204AH). It provides an 18.0 V nominal Zener voltage with a ±5% tolerance, tested at 7.0 mA. The device dissipates up to 500 mW and maintains operation across a junction temperature range of −65°C to +200°C. Key electrical characteristics include a maximum dynamic impedance of 21 Ω, a reverse leakage current of 0.1 µA at 14.0 V, and a positive voltage temperature coefficient of 0.085 %/°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental stability
• Positive voltage temperature coefficient suitable for precision regulation above 5V
• Extended operating junction temperature range up to +200°C

Single Zener Diodes Applications

• Voltage reference circuits requiring stable regulation
• Overvoltage protection in electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm shipping format. The standard bulk bag configuration contains 5000 units per bag. Tape and reel variants are available for automated assembly processes. Ensure compliance with RoHS and halide-free specifications if required by the target application environment.

Single Zener Diodes Selection Notes

Select this component when an 18 V Zener reference is needed with tight tolerance and high thermal endurance. The positive temperature coefficient distinguishes it from lower-voltage alternatives. Verify that the 500 mW power dissipation rating aligns with the circuit's thermal design and ambient conditions.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5252B series of Zener diodes manufactured by onsemi. All devices in this family share identical mechanical dimensions, package styles, and absolute maximum ratings. They utilize the same CASE 017AG axial lead housing and follow standardized JEDEC DO-204AH outlines.

Single Zener Diodes Replacement Considerations

Cross-reference other manufacturers' 1N5248B equivalents to ensure matching Zener voltage, tolerance, and package dimensions. Verify that substitute parts meet the same 500 mW power dissipation and +200°C junction temperature requirements.