JAN1N4119UR-1/TR

Single Zener Diodes Overview

The JAN1N4119UR-1/TR is a silicon unidirectional Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 28 V with a tolerance of ±5%. The device has a maximum power dissipation of 0.5 W and a maximum dynamic impedance of 200 Ohms. Reverse leakage current is specified at 10 nA when tested at 21.3 V. It is housed in the DO-213AA surface-mount package, which measures 3.7 mm in length and 1.7 mm in diameter. The component is designed for isolated case connection applications.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at a nominal 28 V level
• Utilizes a compact DO-213AA surface-mount footprint
• Features an isolated case connection for thermal or electrical isolation

Single Zener Diodes Applications

• Voltage reference circuits requiring precise 28 V levels
• Overvoltage protection in sensitive electronic systems
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify the specific suffix UR-1/TR against the required datasheet revision to ensure compatibility with design specifications. Confirm that the DO-213AA package dimensions align with the PCB footprint constraints. Check for any export control restrictions associated with this part number before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 28 V Zener voltage with 5% tolerance is required in a surface-mount configuration. Ensure the circuit can handle the 0.5 W power dissipation rating under worst-case operating conditions. Verify that the low reverse leakage current meets the requirements for high-impedance input stages.

Single Zener Diodes Part Context

This part belongs to the JAN series of Zener diodes produced by Microchip Technology. The JAN designation typically indicates military-grade reliability standards. The UR-1/TR suffix denotes the specific packaging and tape-and-reel format suitable for automated surface-mount assembly processes.

Single Zener Diodes Replacement Considerations

Consult official Microchip documentation for qualified cross-reference parts. Generic equivalents may not match the specific military-grade reliability or package isolation characteristics.