1N5247B-G

Single Zener Diodes Overview

The Comchip Technology 1N5247B-G is a unidirectional silicon voltage regulator diode housed in a DO-35 glass axial leaded package. It provides a nominal Zener voltage of 17 V with a 5% tolerance and a maximum power dissipation of 500 mW at 25°C. The device operates within a junction temperature range up to 175°C and a storage temperature range from -65°C to +175°C. Electrical characteristics include a maximum dynamic impedance of 19 ohms at a test current of 6.6 mA, a forward voltage of 1.1 V at 200 mA, and a maximum reverse leakage current of 0.1 µA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a unidirectional silicon structure.
• Features a glass encapsulated DO-35 case for through-hole mounting.
• Includes polarity indication via a cathode band on the component body.

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clipping and clamping applications

Single Zener Diodes Procurement Notes

Verify that the ordering suffix '-G' corresponds to RoHS compliance as indicated by the datasheet title. Confirm the manufacturer is Comchip Technology CO., LTD. Ensure the package type matches the specified DO-35 glass axial lead configuration. Cross-reference the part number against the official electrical characteristic table to validate the 17 V nominal voltage rating.

Single Zener Diodes Selection Notes

Select this component when a 17 V regulation point is required in a through-hole design. Consider the 500 mW power dissipation limit and the thermal resistance of 300°C/W when designing the heat sinking or PCB layout. Verify that the operating environment stays within the specified -65°C to +175°C storage and 175°C junction temperature limits.

Single Zener Diodes Part Context

This component belongs to the 1N5221B-G through 1N5267B-G series of axial leaded glass Zener diodes manufactured by Comchip Technology. The series covers a wide voltage range from 2.4 V to 75 V, all sharing the same 500 mW power rating and DO-35 package form factor.

Single Zener Diodes Replacement Considerations

Compatible replacements include other manufacturers' 1N5247B parts, such as those from Microchip Technology or Vishay, provided they meet the 17 V nominal voltage, 500 mW power dissipation, and DO-35 package requirements.