1N4735AP/TR8

Overview

The Microchip Technology 1N4735AP/TR8 is a single silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 6.2 V with a tolerance of ±5%. The device operates in a DO-41 (DO-204AL) axial through-hole package and dissipates up to 1 W of power. Key electrical characteristics include a maximum reverse leakage current of 5 µA, a Zener impedance of 2 Ohms, and a test current of 41 mA. It supports an operating temperature range from -65 °C to +175 °C.

Feature Summary

• Provides stable voltage regulation within a wide selection of voltages using the standard 1N47 series architecture.
• Engineered for high thermal stability and reliable performance across extended industrial temperature ranges.
• Constructed with hermetic sealing options and robust silicon junctions for durable operation.

Applications

• Voltage reference circuits requiring precise potential levels.
• Overvoltage protection stages in electronic systems.
• General-purpose clipping and clamping applications.

Procurement Notes

Verify the specific suffix TR8 indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status by checking the latest datasheet, as manufacturing standards may vary by production batch. Ensure the required voltage tolerance aligns with the ±5% specification provided in the official documentation before finalizing procurement.

Selection Notes

Select this component when a 6.2 V regulation point is required in a through-hole configuration. The 1W power rating allows for moderate current handling compared to lower-power variants. Consider the 2 Ohm dynamic impedance for applications sensitive to voltage fluctuations under load changes. Verify that the DO-41 package dimensions fit the target PCB layout constraints.

Part Context

This part belongs to the widely utilized 1N47xx series of 1-watt Zener diodes. Originally standardized and later produced by various manufacturers including Microsemi and Microchip, these components are industry staples for basic voltage regulation. The AP designation typically denotes specific screening or tolerance grades within the family.

Replacement Considerations

Direct substitutes include other manufacturers' 1N4735A parts meeting identical 6.2V/1W/DO-41 specifications. Cross-reference with 1N4735AT26R or generic 1N4735A equivalents from other vendors, ensuring voltage tolerance and package compatibility match the original design requirements.