1N5245D

Single Zener Diodes Overview

The Microchip Technology 1N5245D is a 0.5-watt glass axial-lead Zener diode housed in a DO-35 package. It provides a nominal Zener voltage of 15 volts with a tight tolerance of ±1%, indicated by the 'D' suffix. The device operates within a temperature range of -65°C to +175°C and features a maximum reverse current of 10 µA at 10 volts. Electrical characteristics include a test current of 8.5 mA, a dynamic impedance of 0.1 ohms at the test current, and a maximum impedance of 10.5 ohms at a knee current of 0.25 mA.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a tight ±1% tolerance for stable reference applications
• Features low dynamic impedance to minimize output voltage fluctuations under varying load conditions
• Constructed with hermetically sealed glass DO-35 packaging for environmental durability
• Capable of operation across an extended industrial temperature range from -65°C to +175°C

Single Zener Diodes Applications

• Precision voltage reference circuits requiring tight tolerance stability
• Overvoltage protection stages in sensitive electronic systems
• Voltage clamping applications in signal processing paths
• Power supply regulation modules utilizing axial-lead mounting

Single Zener Diodes Procurement Notes

Verify that the ordering part number includes the specific 'D' suffix to ensure the procurement of the ±1% tolerance variant rather than standard tolerances. Confirm the manufacturer origin, as this component originates from the Microsemi Scottsdale Division, now part of Microchip Technology. Ensure compliance with RoHS requirements if applicable by checking for the 'e3' suffix designation on the final order specification.

Single Zener Diodes Selection Notes

Select this component when circuit design requires a 15-volt reference with high precision compared to standard 5% or 10% variants. The DO-35 package is suitable for through-hole mounting where space constraints allow for axial leads. Consider the thermal resistance of 250°C/W when designing heat dissipation strategies for power dissipation near the 0.5-watt limit.

Single Zener Diodes Part Context

This device belongs to the extensive 1N5221 through 1N5281B series of 0.5-watt Zener diodes. The series covers a wide voltage selection from 2.4 to 200 volts. The 'D' suffix specifically denotes the tightest manufacturing tolerance available in this standard JEDEC registered lineup, distinguishing it from A (±10%) and B (±5%) suffix counterparts.

Single Zener Diodes Replacement Considerations

Equivalent parts within the same series include 1N5245A (±10% tolerance) and 1N5245B (±5% tolerance). Surface mount equivalents are available in the MLL5221 to MLL5281B series using the DO-213AA MELF package.