QT140-D Overview
Packaging materials from Tube are used. For mounting on the PCB, Through Hole is used. The low package cost of 28-DIP (0.300, 7.62mm) contributes greatly to its popularity in the electronic industry. A normal operation of the 3V~5.5V is ensured by providing a 3V~5.5V Supply Voltage. There is a need to use inputs of Up to 4. Standard grade applications fall under Type Buttons. Temperature 0°C~70°C should always be maintained during operation. Due to its excellent cost-to-performance ratio, the QProx™, QTouch™ Series represents a great value. In this system, 2.5mA is responsible for supplying the supply current. There is a 14 b resolution on the part. A LED driver's channel is Up to 4. There is a 28-DIP package on the supplier's device.
QT140-D Features
28-DIP (0.300, 7.62mm) package
Up to 4 LED driver channels

QT140-D Applications
There are a lot of Microchip Technology
QT140-D Capacitive Sensors applications.

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
Automotive Door and Kick Sensors
Compact Capacitive Keyboards

Package / Case	28-DIP (0.300, 7.62mm)
Mounting Type	Through Hole
Supplier Device Package	28-DIP
Product Status	Obsolete
Mfr	Microchip Technology
Package	Tube
Series	QProx™, QTouch™
Published	2002
Packaging	Tube
Operating Temperature	0°C~70°C
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Type	Buttons
Voltage - Supply	3V~5.5V
Interface	--
Current - Supply	2.5mA
Number of Inputs	Up to 4
Resolution	14 b
Proximity Detection	Yes
LED Driver Channels	Up to 4
RoHS Status	Non-RoHS Compliant
RoHS	Non-Compliant
Max Operating Temperature	70 °C
Min Operating Temperature	0 °C
Operating Supply Current	2.5 mA
Resolution	1.75 B