1N5246B

Single Zener Diodes Overview

The Microchip Technology 1N5246B is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 16 V with a ±5% tolerance (B suffix). The device operates at a test current of 7.8 mA, featuring a maximum reverse leakage current of 100 µA and a Zener impedance of 17 Ω. It supports an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation across a broad operating current and temperature range
• Features minimal capacitance for high-frequency applications
• Inherently radiation hard per MicroNote 050
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation circuits
• Reference voltage sources
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify the manufacturer origin, as the 1N5246B designation is JEDEC registered and produced by multiple vendors including onsemi and Vishay. Confirm that the specific unit matches the Microchip Technology datasheet specifications regarding electrical parameters and package dimensions before integration into the design.

Single Zener Diodes Selection Notes

Select this component when a standard 16 V reference with 5% tolerance is required in a through-hole axial configuration. Ensure the circuit design accommodates the 7.8 mA test current and 0.5 W power dissipation limits. Consider thermal derating if ambient temperatures exceed 50°C or mounting conditions differ from standard lead lengths.

Single Zener Diodes Part Context

This part belongs to the 1N5221–1N5281B series of 0.5 W Zener diodes. The series covers a voltage selection from 2.4 V to 200 V. Variations exist in test currents and impedances based on the specific voltage rating within the family.

Single Zener Diodes Replacement Considerations

Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package. RoHS compliant versions may require the 'e3' suffix depending on the manufacturer's specific ordering nomenclature.