JANTX1N5283-1

Current Regulation - Diodes, Transistors Overview

The JANTX1N5283-1 is a current regulator diode manufactured by Microchip Technology, designed for stable current control across a wide voltage range. It operates within a temperature range of -65°C to +175°C and features a maximum peak working voltage of 100 V. The device regulates a nominal current of 242 uA with a maximum limiting voltage of 1 V. Packaged in the DO-7-2 through-hole format, it offers a minimum dynamic impedance of 25 mohms and a minimum knee impedance of 2.75 mohms. This component is qualified under MIL-PRF-19500/463 standards.

Current Regulation - Diodes, Transistors Feature Summary

• Provides constant current regulation over a broad voltage range, serving as a counterpart to Zener diodes which regulate voltage.
• Features high source impedance for effective current limiting applications.
• Utilizes a double-plug internal bond connection within the DO-7 package to support its function as a current limiter.

Current Regulation - Diodes, Transistors Applications

• Military and aerospace electronic systems requiring radiation-hardened or high-reliability components.
• Precision biasing circuits where stable low-current regulation is critical.
• Current limiting protection in sensitive analog signal paths.

Current Regulation - Diodes, Transistors Procurement Notes

Verify the specific ordering suffix to confirm the JANTX qualification level and package variant. Ensure the procurement documentation explicitly references MIL-PRF-19500/463 compliance. Confirm that the supplier provides traceable manufacturing data consistent with Microchip's military-grade quality standards. Check for any specific handling requirements related to the axial leaded DO-7 package during assembly.

Current Regulation - Diodes, Transistors Selection Notes

Select this component when a fixed current sink is required independent of voltage fluctuations within the specified operating range. Compare the 242 uA regulation point against circuit load requirements. Consider the thermal performance at the upper limit of +175°C. Evaluate the DO-7 package size constraints against available PCB real estate. Verify that the 100 V peak voltage rating exceeds the maximum potential voltage drop across the device in the application.

Current Regulation - Diodes, Transistors Part Context

This part belongs to the 1N5283-1 through 1N5314-1 series of 0.5 watt current regulators. The series offers various current options from 0.22 mA to 4.7 mA in standard 10% tolerances. The JANTX designation indicates a specific reliability tier within the broader family of current regulator diodes produced by Microchip/Microsemi.

Current Regulation - Diodes, Transistors Replacement Considerations

Direct substitutes include other JANTX-qualified parts from the same series, such as JAN1N5283-1 or JANS1N5283-1, depending on the required radiation hardness level. Commercial equivalents like the standard 1N5283 may be considered if military qualification is not mandatory, provided electrical parameters match.