MPR111EKR2 Overview
Materials from Tape & Reel (TR) are used to package it. In order to mount it on the PCB, Surface Mount is used. A significant part of the 54-SOIC (0.295, 7.50mm Width) Exposed Pad's popularity in the electronic industry is its low package cost.
MPR111EKR2 Features
54-SOIC (0.295, 7.50mm Width) Exposed Pad package

MPR111EKR2 Applications
There are a lot of NXP USA Inc.
MPR111EKR2 Capacitive Sensors applications.

Proximity Sensor
Gesture Recognition
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

Mounting Type	Surface Mount
Package / Case	54-SOIC (0.295, 7.50mm Width) Exposed Pad
Packaging	Tape & Reel (TR)
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant