1N5528B/TR

Overview

The Microchip Technology 1N5528B/TR is a low voltage avalanche Zener diode with an 8.2 V nominal voltage, 500 mW power dissipation, and ±5% tolerance. It operates in the -65°C to +175°C range within a hermetically sealed DO-35 (DO-204AH) axial-lead package. The device features a maximum reverse leakage current of 500 nA at 7.5 V, a dynamic impedance of 40 Ohms at 1 mA test current, and a forward voltage of 1.1 V at 200 mA.

Feature Summary

• Hermetically sealed glass axial-lead construction for environmental protection
• Guaranteed voltage regulation across specified operating currents and temperatures
• Inherently radiation hard design suitable for harsh environments
• ESD nonsensitive per MIL-STD-750 Method 1020

Applications

• Voltage regulation over broad operating current and temperature ranges
• Reference voltage sources in precision circuits
• Protection against voltage transients in sensitive electronics

Procurement Notes

Verify that the specific ordering suffix matches the required metallurgical bond option (-1) and military qualification level (JAN, JANTX, or JANTXV). Confirm RoHS compliance status as it varies by commercial versus qualified grades. Ensure the tape and reel packaging aligns with automated assembly requirements before finalizing procurement orders.

Selection Notes

Select this component when a stable 8.2 V reference is needed in high-reliability applications. The B suffix ensures a tight ±5% voltage tolerance compared to standard JEDEC types. Consider the DO-35 package for through-hole mounting where space permits. Evaluate thermal derating curves if operating near maximum power limits.

Part Context

This part belongs to the 1N5518B thru 1N5546B-1 series of 0.5 W axial-leaded glass Zener Voltage Regulators. The series provides voltages from 3.3 to 33 V with various tolerance options. The 1N5528B specifically targets the 8.2 V segment of this lineup, offering robust performance for industrial and military-grade electronic designs requiring precise voltage control.

Replacement Considerations

Equivalent parts include JAN1N5528B-1/TR and CDLL5528B/TR. Verify package compatibility and electrical parameter alignment before substitution.