AT42QT1040-MMHR IC Sensors by Microchip Technology
| Status: | Active |
|---|---|
| Series: | AT42QT1040 |
| RoHS: | Compliant |
Where to Buy
Prices starting from US$1.21
| Distributor | Stock | ||
|---|---|---|---|
|
Farnell
from US$1.47
|
10,246
in stock
|
Buy Now |
|
Newark Electronics
from US$1.73
|
10,246
in stock
|
Buy Now |
|
element14
from US$1.59
|
10,246
in stock
|
Buy Now |
|
Microchip Technology
from US$1.21
|
6,855
in stock
|
Buy Now |
|
Distrelec
from US$2.04
|
5,000
in stock
|
Buy Now |
|
EBV Elektronik
-
|
12,000
in stock
|
Buy Now |
|
Future Electronics
from US$1.77
|
-
|
Buy Now |
|
Avnet America
from US$1.65
|
-
|
Buy Now |
|
Avnet Silica
-
|
-
|
Buy Now |
Features
| Four discrete outputs indicating individual key touch |
| Technology: Patented spread-spectrum charge-transfer (direct mode) |
| Electrode Design: Simple self-capacitance style |
| Electrode Materials: Etched copper, silver, carbon, Indium Tin Oxide (ITO) |
| Electrode Substrates: PCB, FPCB, plastic films, glass |
| Panel Materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible) |
| Panel Thickness: Up to 10 mm glass, 5 mm plastic (electrode size dependent) |
| Key Sensitivity: Fixed key threshold, sensitivity adjusted via sample capacitor value |
| Patented Adjacent Key Suppression® (AKS®) technology to enable accurate key detection |
| Interface: Pin-per-key outputs, plus debug mode to observe sensor signals |
| Moisture Tolerance: Increased moisture tolerance based on hardware design and firmware tuning |
| Signal Processing: Self-calibration, auto drift compensation, noise filtering |
| Applications: Mobile, consumer, white goods, toys, kiosks, POS |
| Power: 1.8 V – 5.5 V |
| Package: 20-pin 3 x 3 mm VQFN RoHS compliant |
Specifications
| Product Type | Proximity/Keys/Slider |
|---|---|
| Input Channels | 4 |
| Max Number of keys | 4 |
| Slider | No |
| Proximity detection | No |
| Output Channels | 0 |
| Measurement Principle | E-Field |
| Report Rate (pps) | 0 |
| Number of Touches | 0 |
| Power Modes | 0 |
| Interface | Digital Output |
| I/O, LED Drivers | 0 |
| Other Features | Signal Guard/Driven Shield |
| Temp Range | Array |
| Voltage Min. (V) | 1.80 |
| Voltage Max. (V) | 5.50 |
| Pins | Packaging | 20 | VQFN |
| Packing Media | Tape and reel (6000) |
Resources
Data Sheets |
|---|
| AT42QT1040 - Complete Datasheet |
Environmental Information
| JEDEC Indicator | e4 |
|---|---|
| ROHS | Compliant |
| China EFUP | Compliant |
| Device Weight (g) | 0.0189 |
| Shipping Weight (kg) | 0.105 |
| Lead Count | 20 |
| Package Type | VQFN |
| Package Width or Size | 3x3x0.85mm |
| Soldering Composition | NiPdAu |
Alternative Descriptions
| Capacitive Touch Sensor, Serial, Vqfn-28 | Newark Electronics |
| CAPACITIVE TOUCH SENSOR, SERIAL, VQFN-28 | element14 |
| INTEGRATED-CIRCUIT | Microchip Technology |
| Microchip Four-key Touch Sensor IC QFN-20 | Distrelec |
| Touch Sensor Capacitive 4 Key 1.8V to 5.5V SMD 20-Pin VQFN T/R | EBV Elektronik |
| AT42QT1040 Series 5.5 V 10 mA Four-key QTouch« Touch Sensor IC - VQFN-20 | Future Electronics |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a AT42QT1040-MMHR?
Additional datasheets, footprints and schematics for AT42QT1040-MMHR are listed on our Part Details page. You can also find images and similar parts to AT42QT1040-MMHR on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for AT42QT1040-MMHR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view AT42QT1040-MMHR price breaks, MOQs, lead times, inventory and SKUs from distributors.
What category does AT42QT1040-MMHR fall under?
The AT42QT1040-MMHR is listed under Semiconductors - ICs > IC Sensors > Capacitive Touch Sensors.
Can I view similar or alternative parts?
You can view similar parts to AT42QT1040-MMHR when available in the Capacitive Touch Sensors range under the specifications section at the bottom of the details page.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the AT42QT1040-MMHR you can contact the distributor directly for product support, shipping queries etc.
Is the AT42QT1040-MMHR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
Which authorised distributors for AT42QT1040-MMHR have stock available?
Authorised distributors including Newark Electronics, element14, Farnell, Microchip Technology and Distrelec have stock available or on a lead time for AT42QT1040-MMHR.
How do I check stock and lead times for all distributors?
Stock availability and lead times will be displayed for AT42QT1040-MMHR often in real-time on the comparison pages.
What if I can't find stock of AT42QT1040-MMHR?
You can fill out our help required form which you can use to request a quote for AT42QT1040-MMHR from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.