R3119N031E-TR-FE

Supervisors Overview

The R3119N031E-TR-FE is a voltage detector from the Nisshinbo R3119N series, designed for industrial applications. It features a 36 V maximum input voltage and a threshold voltage of 3.1 V. The device operates within a supply voltage range of 2.1 V to 6 V and consumes a typical operating current of 3.3 uA. It provides an open-drain output with active-low logic and includes a reset delay time of 85 ms. Accuracy is specified at 1.5%, and it functions reliably between -40 °C and +105 °C in a SOT-23-5 package.

Supervisors Feature Summary

• Supports high input voltages up to 36 V for robust system monitoring
• Includes a built-in delay function to prevent false triggering during power transitions
• Offers low power consumption suitable for battery-operated equipment
• Provides accurate voltage detection with 1.5% threshold accuracy

Supervisors Applications

• Industrial equipment power supervision
• Battery backup switching circuits
• Microprocessor reset systems requiring high input tolerance

Supervisors Procurement Notes

Verify the specific threshold voltage code matches the design requirement, as the R3119N series offers multiple options. Confirm the SOT-23-5 package orientation and pinout compatibility with the PCB layout. Ensure the operating temperature range meets the environmental conditions of the final application. Check RoHS compliance status if required by regulatory standards.

Supervisors Selection Notes

Select this component when monitoring high-voltage inputs exceeding standard 6 V limits using a low-power supervisor. The 3.1 V threshold is suitable for detecting under-voltage conditions in 3.3 V or 5 V systems. Consider the 85 ms delay for noise immunity. Compare against other R3119N variants if different thresholds or delay times are needed.

Supervisors Part Context

This part belongs to the R3119N series of voltage detectors from Nisshinbo Micro Devices. The series is characterized by high input voltage tolerance and low standby current. It is intended for use in environments requiring reliable power management and system protection. The device integrates essential monitoring functions into a compact surface-mount package.

Supervisors Replacement Considerations

Direct substitutes include other R3119N variants with identical packages but different threshold codes, such as R3119N031E-TR-FE equivalents. Cross-reference with similar high-input voltage supervisors from other manufacturers only if electrical parameters match exactly.