1N5298UR-1/TR

Overview

The Microchip Technology 1N5298UR-1/TR is a current regulator diode housed in a DO-213AB (MELF, LL41) surface-mount package. It provides a nominal regulator current of 1.10 mA with a tolerance range of 0.990 mA to 1.210 mA at a regulator voltage of 25 V. The device supports a maximum working peak voltage of 100 V and a steady-state power dissipation of 500 mW at an ambient temperature of +125 °C. Electrical characteristics include a minimum regulator impedance of 0.700 MΩ and a minimum knee impedance of 0.180 MΩ. The limiting voltage is specified at 1.40 V.

Feature Summary

• JEDEC registered surface mount equivalent of the 1N5283 through 1N5314 series
• Double-plug internal bond connection for unique current regulation functions
• High source impedance and inherent radiation hardness

Applications

• Current regulation over broad operating voltage ranges
• Temperature-compensated Zener reference applications
• Biasing elements for transistor circuits

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging details. The TR suffix indicates tape and reel packaging. Confirm that the component meets all required environmental and qualification standards for the intended application before procurement.

Selection Notes

Select this component when a surface-mount current regulator is required within the 1N5283UR-1 to 1N5314UR-1 family. Ensure the design accommodates the 10% standard current tolerance and verify that the 100 V peak operating voltage exceeds the circuit's maximum expected voltage.

Part Context

This part belongs to the 1N5283UR-1/1N7048UR series of 0.5 watt current regulators manufactured by Microchip Technology. It serves as the surface-mount counterpart to the axial-leaded 1N5283-1 through 1N5314-1 series, offering similar electrical performance in a hermetically sealed glass MELF case.

Replacement Considerations

The 1N5298-1 is the axial-leaded equivalent. Other current values in the 1N5283UR-1 to 1N5314UR-1 series may be used if different current ratings are acceptable.