1N4102/TR

Single Zener Diodes Overview

The Microchip Technology 1N4102/TR is a 500 mW metallurgically bonded glass Zener diode in the axial-lead DO-35 package. It provides an 8.7 V nominal Zener voltage with a standard 5% tolerance. The device operates within a junction temperature range of -65°C to +175°C and features a maximum reverse leakage current of 6.7 µA at the specified test current of 250 µA.

Single Zener Diodes Feature Summary

• Internal metallurgical bond for high reliability
• Hermetically sealed glass DO-35 package
• Qualified per MIL-PRF-19500/435 standards

Single Zener Diodes Applications

• Voltage regulation over broad current ranges
• High-reliability aerospace and defense circuits
• Temperature-compensated reference applications

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required qualification level, as commercial versions differ from military grades. Confirm RoHS compliance status if environmental regulations apply, noting that certain finishes are available only on commercial grade parts. Ensure the tape and reel packaging aligns with automated assembly requirements.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed axial lead form factor is required for through-hole mounting. Consider the positive temperature coefficient inherent to voltages above 6.8 V for thermal stability analysis. Verify that the 500 mW power dissipation rating meets the circuit's thermal design constraints under expected operating conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mZener regulators. These devices are JEDEC registered and offer extensive voltage selection from 1.8 to 100 volts. The series supports various reliability levels including JAN, JANTX, JANTXV, and JANS for demanding environments.

Single Zener Diodes Replacement Considerations

Direct replacements include other 1N4102 variants from different manufacturers provided they match the 8.7 V Zener voltage, 500 mW power rating, and DO-35 package dimensions. Verify electrical characteristics such as impedance and leakage current to ensure circuit compatibility.