1N5247B

Single Zener Diodes Overview

The Microchip Technology 1N5247B is a 0.5 W glass axial-lead Zener diode in the DO-35 package. It provides a nominal Zener voltage of 17 V with a standard tolerance of ±5%. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 100 nA at the rated voltage. Electrical characteristics include a test current of 7.4 mA, a Zener impedance of 19 Ohms, and a positive voltage temperature coefficient of +0.084 %/°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
• Constructed with a hermetically sealed glass axial-lead package

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• General-purpose voltage regulation

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required tolerance level, as the 'B' suffix specifically denotes a ±5% tolerance. Confirm compliance requirements such as RoHS status if applicable. Ensure the manufacturer source is identified correctly, as this component series has been produced by multiple entities including Microsemi and Microchip Technology.

Single Zener Diodes Selection Notes

Select this component when a precise 17 V reference is needed with tight manufacturing tolerances. The low leakage current and defined impedance make it suitable for sensitive analog circuits. Consider the thermal resistance and power derating curves if the application involves elevated ambient temperatures or continuous high-power dissipation.

Single Zener Diodes Part Context

This part belongs to the widely used 1N5221 through 1N5281B series of 0.5 W Zener diodes. The series covers a voltage range from 2.4 V to 200 V. The 1N5247B specifically addresses the mid-range voltage segment, offering a balance between low leakage and manageable impedance for general electronic designs requiring reliable voltage clamping.

Single Zener Diodes Replacement Considerations

Equivalent parts include the 1N5247B from other manufacturers such as onsemi or NXP (e.g., 1N5247B116). Verify that replacement components match the specific B-suffix tolerance and package dimensions.