Backlit Keyboard
KY2047A Metal Keypad With Round 9mm Keys
KY2047A is a SUS304 stainless steel keypad with round Φ9mm keys, giving a button-style feel rather than a flat keyboard grid. The small round caps let a dense key field fit into a narrow fascia strip.
Product Overview
KY2047A is a SUS304 stainless steel keypad with round Φ9mm keys, giving a button-style feel rather than a flat keyboard grid. The small round caps let a dense key field fit into a narrow fascia strip. Etched key content is customized to the equipment's own functions.
- Round Φ9mm keys pack a dense function set into a narrow panel strip
- Button-style caps are easy to locate by fingertip without looking
- Etched key content is customized rather than screen printed on top
- SUS304 panel described as anti-riot and anti-corrosion for shared equipment
- Key strength 3N ± 10% resists accidental brushes
- Durability >2 million supports repeated daily operation
Application Scenarios
- Narrow fascia strips on rack-mounted equipment
- Instrument front panels with many discrete functions
- Lift and call station button fields
- Compact access terminals
- Machine panels replacing individual push buttons
Who It Is For
- Instrument and rack equipment manufacturers
- Lift and building system suppliers
- Compact terminal designers
- OEMs consolidating separate push buttons into one panel
Problems It Solves
- Individually wired push buttons take assembly time and panel space
- Square key grids do not suit narrow fascia strips
- Printed button legends wear off with fingertip contact
- Loose buttons create sealing and tamper points
Technical Features
- Round key size Φ9mm
- Key trip 0.45mm with key strength 3N ± 10%
- SUS304 brushed stainless steel panel and buttons
- Customized etched button content
- Power supply 5V±5% and working current <150mA
- USB, PS/2 and RS232 support
- Operation temperature -10℃~50℃
Specifications
| Panel material | SUS304 brushed stainless steel |
|---|---|
| Key size | Φ9mm |
| Key trip | 0.45mm |
| Key strength | 3N ± 10% |
| Power supply | 5V±5% |
| Working current | <150mA |
| Durability | >2 million |
| Interface | USB / PS/2 / RS232 |
| Mounting way | Rear mounting or front mounting |
| Operation temperature | -10℃~50℃ (relative humidity 20%~85%, atmospheric pressure 60~106Kpa) |
| Storage temperature | -30℃~85℃ (relative humidity 20%~90%, atmospheric pressure 60~106Kpa) |
Materials
- SUS304 brushed stainless steel panel
- SUS304 brushed stainless steel round keycaps
Manufacturing Process
- Panel drilling and punching of the Φ9mm key holes
- Round cap turning and brushing
- Etching of the key legends around each cap
- Switch assembly and panel closure
- Function and force testing
Quality Control
- Cap diameter sampled against Φ9mm
- Key strength checked to 3N ± 10%
- Cap concentricity within each hole inspected
- Full key output test before despatch
Customisation Options
- Etched legends beside or on each round key
- Key count and spacing within the panel strip
- USB, PS/2 or RS232 interface build
- Panel outline and fixing pattern to drawing
- Rear or front mounting hardware
How It Compares
| Square keycap metal keypad | Round Φ9mm caps fit narrow strips where a square grid will not |
|---|---|
| Discrete panel push buttons | One assembly replaces many individually wired buttons and their separate seals |
| Membrane button panel | Metal caps with 0.45mm travel give a positive press a flat membrane lacks |
Use Guide
- Confirm fingertip spacing suits your users before fixing the key count
- Supply legend artwork for etching around each key position
- Power from 5V±5% within the <150mA draw
- Operate within -10℃~50℃
- Avoid abrasive cleaners that dull the brushed finish
Related Products
Questions About This Model
How large are the keys?
Each round key is Φ9mm.
Can legends be added next to the keys?
Yes, etched button content is customized according to customer requirements.
What force actuates a key?
3N ± 10% with 0.45mm travel.
Which interfaces are supported?
USB, PS/2 and RS232.
How is the keypad fixed?
Rear mounting or front mounting.
What is the rated life?
More than 2 million operations.
Request A Quote On KY2047A
Tell us quantity, interface and mounting method. Drawings and panel cutouts are welcome by WhatsApp or email.