MC1403BP1

Overview

The MC1403BP1 is a series voltage reference integrated circuit manufactured by onsemi. It provides a fixed output voltage of 2.5V with a tolerance of ±1%. The device operates within an input voltage range of 4.5V to 40V and draws a supply current of 1.5mA. It supports a maximum output current of 10mA. The component features a temperature coefficient of 40ppm/°C and functions across a working temperature range of -40°C to 85°C (TA). It is housed in an 8-PDIP package with a width of 0.300 inches (7.62mm) for through-hole mounting.

Feature Summary

• Provides a stable 2.5V fixed output voltage suitable for precision applications
• Operates with a wide input voltage range from 4.5V to 40V
• Delivers up to 10mA output current capability
• Maintains accuracy within ±1% tolerance

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Battery-powered instrumentation requiring stable bias voltages
• Temperature measurement circuits utilizing thermocouples or RTDs

Procurement Notes

Verify the specific suffix 'P1' against the manufacturer's official datasheet to confirm pinout and electrical specifications, as suffixes can indicate variations in packaging or testing criteria. Confirm RoHS compliance status, as documentation indicates this specific part may not meet current environmental directives. Check for active obsolescence notices or product change notifications that may affect long-term availability or manufacturing location.

Selection Notes

Select this component when a low-cost, bipolar series voltage reference is required for general-purpose precision applications. Ensure the design accommodates the 40ppm/°C temperature coefficient if operating over wide thermal ranges. Verify that the 10mA output current meets the load requirements without exceeding the device's power dissipation limits within the specified ambient temperature range.

Part Context

This part belongs to the MC1403B family of three-terminal voltage references. It shares functional similarities with other members like the MC1403BD but differs in physical packaging. The MC1403 series is designed to replace older Zener diode references, offering improved stability and lower noise characteristics in a compact integrated circuit form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.