R3111H321A-T1-FE

Supervisors Overview

The R3111H321A-T1-FE is a low voltage detector manufactured by Nisshinbo Micro Devices. It operates within a supply voltage range of up to 10 V and features a fixed threshold voltage of 3.2 V. The device provides an open-drain output with a reset delay time of 100 µs. It consumes a typical operating power supply current of 1.2 µA and maintains an accuracy of 2%. The component supports battery backup switching and includes power failure detection capabilities. It is housed in an SOT-89-3 package and functions reliably across a temperature range from -40 °C to +85 °C.

Supervisors Feature Summary

• Provides precise voltage monitoring with high accuracy for system supervision
• Features ultra-low power consumption suitable for battery-operated applications
• Includes dedicated battery backup switch functionality for seamless operation during power transitions

Supervisors Applications

• Low voltage detection in portable electronic devices
• Battery backup switching circuits
• Power failure detection systems

Supervisors Procurement Notes

Verify the specific suffix codes against official datasheets to confirm pinout, package type, and electrical characteristics. Ensure compatibility with required operating temperatures and voltage thresholds. Cross-reference manufacturer part numbers with distributor listings to confirm authenticity and availability status before procurement.

Supervisors Selection Notes

Select this component when a fixed 3.2 V threshold is required for supervisory applications. Consider the open-drain output configuration for interface compatibility with downstream logic. Evaluate the SOT-89-3 package constraints against board space requirements. Confirm that the 1.2 µA quiescent current meets the system's power budget constraints.

Supervisors Part Context

This part belongs to the R3111H series of low voltage detectors from Nisshinbo Micro Devices. The series is designed for monitoring single input voltages in various electronic systems. It integrates essential supervision features into a compact surface-mount package, targeting applications where size and power efficiency are critical design parameters.

Supervisors Replacement Considerations

Consult official substitution guides for compatible parts within the same family or equivalent products from other manufacturers. Verify that alternative components match the 3.2 V threshold, open-drain output, and SOT-89-3 package specifications.