QT140-DG

$3.59

Description：IC SENSOR 4KEY 5V 5MA SGL 28DIP
Series：QProx™, QTouch™

SKU:463016d7e090 Category: Sensor, Capacitive Touch Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：IC SENSOR 4KEY 5V 5MA SGL 28DIP
Series：QProx™, QTouch™
Mfr：Microchip Technology
Package：Tube
Type：Buttons
Proximity Detection：Yes
Number of Inputs：Up to 4
LED Driver Channels：Up to 4
Interface：-
Resolution：14 b
Voltage - Supply：3V ~ 5.5V
Current - Supply：2.5mA
Operating Temperature：0°C ~ 70°C
Mounting Type：Through Hole
Package / Case：28-DIP (0.300", 7.62mm)
Supplier Device Package：28-DIP
Grade：-
Qualification：-

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QT140-DG

Overview

The QT140-DG is a capacitive touch sensor IC from Microchip Technology’s QProx and QTouch series. It supports up to four inputs for proximity detection and includes up to four LED driver channels. The device operates on a supply voltage range of 3V to 5.5V. It is housed in a tube package and is currently classified as obsolete.

Feature Summary

Supports proximity detection functionality
Includes integrated LED driver channels

Applications

Capacitive touch sensor interfaces
Proximity detection systems
LED indicator control applications

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Availability is limited to existing stock or secondary market sources. Verify part authenticity and condition carefully when sourcing from distributors, as new production has ceased.

Selection Notes

Engineers should consider this part only for legacy system maintenance or specific design-in scenarios where the QProx/QTouch interface is required. New designs should evaluate current Microchip touch sensor alternatives due to the obsolete status of this specific model.

Part Context

The QT140-DG belongs to Microchip's QProx and QTouch product families, which focus on capacitive sensing solutions. It serves as an interface between user touch inputs and system logic, providing proximity sensing capabilities alongside direct LED driving functions for visual feedback.

Replacement Considerations

As the QT140-DG is obsolete, no official direct substitute is confirmed in public documentation. Designers must review current Microchip capacitive touch sensor portfolios for functional equivalents.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.