JANTXV1N5520B-1

Single Zener Diodes Overview

The JANTXV1N5520B-1 is a silicon Zener diode manufactured by Microchip Technology, designed for voltage regulation applications. It features a nominal Zener voltage of 3.9 V with a tolerance of ±5% and a maximum power dissipation of 500 mW. The device operates in the DO-204AH (DO-35) axial leaded package, suitable for through-hole mounting. Key electrical characteristics include a maximum reverse leakage current of 1 µA at 1 V and a dynamic impedance of 22 Ω. The component is specified for an isolated case connection and supports a wide operating temperature range.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal 3.9 V breakdown voltage
• Utilizes a rugged DO-35 axial glass passivated junction construction
• Features low leakage current for efficient standby operation
• Designed for high-reliability environments with isolated case connection

Single Zener Diodes Applications

• Precision voltage reference circuits
• Overvoltage protection stages
• Clamping applications in signal conditioning
• Power supply regulation modules

Single Zener Diodes Procurement Notes

Verify that the specific part number suffix matches the required packaging configuration, as bulk tape-and-reel variants may exist. Confirm RoHS compliance status if restricted substances are prohibited in the target assembly. Ensure the procurement channel provides traceability documentation consistent with aerospace or military specifications, given the JANTXV designation. Validate that the supplier can provide original manufacturer data sheets to confirm electrical parameters against design requirements.

Single Zener Diodes Selection Notes

Select this component when a precise 3.9 V reference is required in a compact axial package. The 500 mW power rating allows for moderate current handling in series resistor configurations. Consider the ±5% tolerance for applications requiring tighter voltage accuracy, where alternative grades may be necessary. The DO-35 footprint is compatible with standard through-hole PCB layouts, facilitating easy integration into existing designs without retooling.

Single Zener Diodes Part Context

This device belongs to the JANTXV series of Zener diodes, which are characterized by enhanced reliability and strict manufacturing controls compared to commercial grade parts. The 'JAN' prefix indicates qualification for military standards, while 'TXV' denotes specific screening levels. This series is widely used in defense, aerospace, and industrial systems where long-term stability and radiation hardness are critical operational requirements.

Single Zener Diodes Replacement Considerations

Direct substitutes include other JANTXV1N5520B-1 units from authorized distributors. Equivalent commercial-grade alternatives such as the 1N5520B may function electrically but lack the rigorous screening and reliability guarantees of the JANTXV variant. Verify pinout compatibility and thermal performance before substituting non-military grade components in safety-critical applications.