LM185BYH2.5-QV

Overview

The LM185BYH2.5-QV is a space-grade QMLV shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of ±1.5%. The device operates within a temperature range of -55°C to +125°C and features a maximum shunt current of 20 mA. It utilizes a TO-46 package for through-hole mounting.

Feature Summary

• Space-grade qualification under the QMLV standard
• Fixed 2.5 V shunt voltage reference operation
• High reliability for extreme environmental conditions

Applications

• Aerospace electronic systems
• Military instrumentation circuits
• Satellite power management units

Procurement Notes

Verify that the specific order includes the QMLV certification documentation required for space applications. Confirm that the TO-46 package dimensions match the mechanical constraints of the target assembly. Ensure that the supplier provides traceability records consistent with military or aerospace procurement standards.

Selection Notes

Select this component when a fixed 2.5 V reference is required in high-reliability environments. The QMLV qualification ensures suitability for space missions where standard commercial parts are insufficient. Consider the TO-46 package size and thermal characteristics during the circuit layout phase.

Part Context

This part belongs to the LM185 series of precision voltage references. Unlike standard commercial variants, the BYH suffix and QMLV designation indicate specialized manufacturing processes and testing protocols designed to meet stringent space and defense industry requirements for long-term stability and radiation hardness.

Replacement Considerations

LM185BH/NOPB

FAQ

What does the QMLV designation signify?

QMLV stands for Qualified Microelectronics Level V, indicating that the component meets strict space-grade quality and reliability standards.

Is the LM185BYH2.5-QV available in surface mount packages?

No, this specific part number uses a TO-46 through-hole metal can package.