MPR031EPR2 Overview
The packaging is made from materials from Tape & Reel (TR). Mounting the PCB uses the Surface Mount command. 8-UFDFN's low package cost is a major reason for its popularity in the electronics industry. The 1.71V~2.75V Supply Voltage ensures its normal operation. The inputs of Up to 3 are used. In standard grade applications, it belongs to Type Buttons. A constant -40°C~85°C temperature should be maintained for its operation. The system's supply current is provided by 43μA. Using terminations of 8, it is constructed. Power is always provided by a 1.8V-volt supply. It is essential that Vsup exceeds 1.71V, the supply voltage. Supply Voltage (Vsup) reaches 2.75V. There is a peak in the reflow temperature of 260.
MPR031EPR2 Features
8-UFDFN package

MPR031EPR2 Applications
There are a lot of NXP USA Inc.
MPR031EPR2 Capacitive Sensors applications.

Automotive Door I Kick Sensors
Automotive Rain Sensor
Remote and Direct Liquid Level Sensor
High-resolution Metal Profling
Rain I Fog I Ice I Snow Sensor
Material Size Detection
Material Stack Height
Level Sensor for Liquids, including Conductive ones such as Detergent, Soap, and Ink
Collision Avoidance
Rain, Fog, Ice, Snow Sensor

Mounting Type	Surface Mount
Package / Case	8-UFDFN
Surface Mount	YES
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	2003
Part Status	Discontinued
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	8
Type	Buttons
Voltage - Supply	1.71V~2.75V
Terminal Position	DUAL
Terminal Form	NO LEAD
Peak Reflow Temperature (Cel)	260
Number of Functions	1
Supply Voltage	1.8V
Terminal Pitch	0.5mm
Time@Peak Reflow Temperature-Max (s)	40
JESD-30 Code	S-PDSO-N8
Qualification Status	Not Qualified
Supply Voltage-Max (Vsup)	2.75V
Supply Voltage-Min (Vsup)	1.71V
Interface	I2C
Current - Supply	43μA
Number of Inputs	Up to 3
Proximity Detection	Yes
Length	2mm
Height Seated (Max)	0.65mm
Width	2mm
RoHS Status	ROHS3 Compliant