Numeric Keypad
KY-2240B Metal Numeric Keypad With 11 Stainless Steel Keys
KY-2240B is an embedded metal numeric keypad with a total of 11 keys in SUS304 brushed stainless steel. It is built into the fascia of financial, communication and self-service equipment where a plastic keypad would not survive…
Product Overview
KY-2240B is an embedded metal numeric keypad with a total of 11 keys in SUS304 brushed stainless steel. It is built into the fascia of financial, communication and self-service equipment where a plastic keypad would not survive public handling. Assembly is from top to bottom, so the panel face carries the load.
- 11 key numeric layout keeps the panel cut-out small on space limited fascias
- SUS304 brushed stainless steel panel and keys resist riot damage and corrosion
- Scanning port output connects straight to an embedded controller without a USB stack
- Low draw of under 150mA suits battery backed and power budgeted terminals
- Durability of more than 2 million operations matches high footfall installations
- Etched key content can be set to your own legends before shipment
Application Scenarios
- Financial equipment such as payment and account terminals
- Communication equipment requiring numeric entry
- Military equipment consoles with embedded panels
- Self-service terminal equipment in public areas
- Access and entry stations needing code input
Who It Is For
- Financial terminal manufacturers
- Self-service terminal OEMs
- Communication equipment builders
- Defence and government equipment integrators
Problems It Solves
- Plastic numeric keypads crack and fade where the public enters codes all day
- Embedded controllers without USB still need a rugged numeric input
- Generic keypads carry legends that do not match the host application
- Panel space is tight and a full keyboard will not fit
Technical Features
- Total of 11 keys in an embedded numeric arrangement
- Power supply 5V plus or minus 5 percent with working current under 150mA
- Scanning port interface for direct matrix reading
- Key size 16*16*2.0mm with 0.45mm key trip
- Operation force 2N+/-0.1N contact force
- Operation temperature -20 degrees C to 65 degrees C
- Compatible with Window XP, Window 7, Window 8, Window 10, Linux, Ubuntu and Android
Specifications
| Keys | 11 |
|---|---|
| Power supply | 5V±5% |
| Working current | <150mA |
| Durability | >2 million |
| Interface | Scanning port |
| Key size | 16*16*2.0mm |
| Key trip | 0.45mm |
| Operation force | 2N+/-0.1N (Contact force) |
| Mounting way | Assemble from top to bottom |
| Operation temperature | -20℃~65℃ (Relative humidity 20%~85%) |
| Storage temperature | -30℃~85℃ (Relative humidity 20%~90%) |
Materials
- SUS304 brushed stainless steel panel
- SUS304 brushed stainless steel keys
Manufacturing Process
- Sheet metal blanking of the 11 key panel aperture pattern
- Panel forming and edge deburring
- Brushing of panel and key tops
- Laser etching of black key characters to customer artwork
- Top to bottom assembly with contact matrix and scanning harness
Quality Control
- Every key scanned for a clean single output on the matrix
- Key travel and contact force sampled against 0.45mm and 2N+/-0.1N
- Etched legend position and depth checked against the approved drawing
- Aperture pitch verified so the panel drops into the customer cut-out
Customisation Options
- Key screen printing or etching content set to your requirement
- Black character laser etching on the stainless keys
- Harness length and connector chosen for your controller
- Panel outline and fixing points matched to your fascia
- Alternative key legends for non numeric functions
How It Compares
| Plastic membrane numeric pad | Membrane overlays lift at the edges in public use, while the SUS304 keys and panel stay intact. |
|---|---|
| USB numeric keypad | KY-2240B outputs on a scanning port, so an embedded board can read the matrix without hosting USB. |
| Larger 35 key metal keypads | With only 11 keys the cut-out stays compact where fascia space is limited. |
Use Guide
- Assemble the keypad from top to bottom into the prepared fascia cut-out
- Wire the scanning port to your controller matrix inputs and confirm each key
- Hold the supply at 5V ± 5% for stable scanning
- Confirm ambient stays within -20℃~65℃ at the installed position
- Clean the brushed face with a damp cloth only
Questions About This Model
How many keys are on KY-2240B?
The keypad has a total of 11 keys.
What interface is used?
The output is a scanning port, read directly as a key matrix.
Can we change the key legends?
Yes. Key screen printing or etching content can be customized to your requirements, and laser etching is used when the characters are black.
How is it mounted?
It assembles from top to bottom into the panel cut-out as an embedded device.
What is the operating temperature range?
Operation temperature is -20℃~65℃ with relative humidity 20%~85%.
What is the key size and travel?
Key size is 16*16*2.0mm with a key trip of 0.45mm.
Request A Quote On KY-2240B
Tell us quantity, interface and mounting method. Drawings and panel cutouts are welcome by WhatsApp or email.