1N4927A/TR

$64.56

Description：DIODE ZENER 19.2V 500MW DO204AH
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR)

SKU:8ffec63d3c4a Category: Single Zener Diodes Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：DIODE ZENER 19.2V 500MW DO204AH
Series：-
Mfr：Microchip Technology
Package：Tape & Reel (TR)
Voltage - Zener (Nom) (Vz)：19.2 V
Tolerance：±5%
Power - Max：500 mW
Impedance (Max) (Zzt)：75 Ohms
Current - Reverse Leakage @ Vr：-
Operating Temperature：-55°C ~ 100°C
Mounting Type：Through Hole
Package / Case：DO-204AH, DO-35, Axial
Voltage - Forward (Vf) (Max) @ If：-

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1N4927A/TR

Overview

The Microchip Technology 1N4927A/TR is a temperature-compensated Zener reference diode designed for high-precision voltage regulation. It features a nominal Zener voltage of 19.2 V with a tolerance of ±5%. The device operates in the DO-35 (DO-204AH) through-hole package and dissipates up to 500 mW. Key electrical parameters include a test current of 7.5 mA, a maximum reverse leakage current of 15 µA, and a Zener impedance of 75 Ohms. It functions reliably within an operating temperature range of -65°C to +175°C.

Feature Summary

Temperature compensated design ensures stable voltage reference across wide thermal variations
Low noise characteristics suitable for precision analog circuitry
Robust through-hole construction for reliable mounting

Applications

Precision voltage reference sources
Temperature compensated oscillator circuits
High-stability power supply regulation

Procurement Notes

Verify the specific suffix TR indicates reel packaging when ordering. Confirm RoHS compliance status as documentation may vary by production batch. Ensure the DO-35 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when a stable 19.2 V reference is required in through-hole designs. Consider the 75 Ohm impedance and 500 mW power rating for thermal management. Verify that the ±5% voltage tolerance meets the system's accuracy specifications compared to tighter tolerance alternatives.

Part Context

This part belongs to Microchip's legacy 1N series of temperature-compensated Zener diodes. These components are engineered to provide superior stability compared to standard Zener diodes, particularly in applications where ambient temperature fluctuations could otherwise degrade reference voltage accuracy.

Replacement Considerations

Direct substitutes include other 19.2 V temperature-compensated Zener diodes from manufacturers such as Microsemi or ON Semiconductor. Ensure replacement parts maintain the same DO-35 package and similar impedance characteristics to preserve circuit performance.