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Capacitive 4 × 3 Touch Keypad with Insertable Legends and Backlight
Capacitive Keyboards

Capacitive 4 × 3 Touch Keypad with Insertable Legends and Backlight

CT43B

Industrial Grade

Key Highlights

  • Capacitive touch keys with no mechanical wear
  • Insertable, backlit legends for clear visibility
  • Glove-friendly operation with adjustable sensitivity
  • Multiple interface options for flexible integration
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Product Information

The Keetronics CT43B Capacitive 4 × 3 Touch Keypad is a durable and maintenance-free input solution designed for modern industrial and public-facing applications. By eliminating mechanical contacts, this keypad delivers a long operational life with consistent performance and no wear-related degradation.

The keypad features insertable legends with white LED backlighting, ensuring clear visibility in low-light environments. Legends are printed on the rear side of the insert, protecting them from abrasion and environmental exposure. The glass or PMMA surface provides a smooth, sealed interface that is easy to clean and resistant to daily wear.

Supporting multiple interface options including TTL matrix output, SPI, I²C, or UART, the CT43B offers flexible system integration. Adjustable touch sensitivity and reliable glove operation make it suitable for kiosks, ATMs, fuel dispensers, and access control systems. With its compact size and robust design, the CT43B is an ideal choice for applications requiring a sleek appearance and high reliability.

Technical Specifications

Keypad Layout 4 × 3 capacitive keys
Model CT43B
Keypad Size 60 mm × 85 mm
Insert Thickness 200 microns
Insert Type Insertable legends with illumination provision
Operating Voltage 5 VDC / 3.3 VDC (regulated)
Current Consumption Max. 50 mA
Backlight Color White LED
Stud Length M3 × 10 mm
Surface Material Glass or PMMA
Connector Type 2.54 mm pitch wire-insertable connector
Signal Level 5 VDC / 3.3 VDC
Output Options TTL 4 × 3 matrix output | SPI / I²C / UART (any one, configurable)
Switch Function ON/OFF detection
Sensitivity Adjustable

Features

Industrial Grade Custom Layout High Quality Made in India

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