Numeric Keypad
KY-3100B Embedded Metal Keypad With 35 Stainless Steel Buttons
KY-3100B is an embedded metal keypad with a total of 35 buttons in SUS304 stainless steel. It suits terminals that need more than a numeric block but no full keyboard, and it runs from a 12V supply at under 70mA.
Product Overview
KY-3100B is an embedded metal keypad with a total of 35 buttons in SUS304 stainless steel. It suits terminals that need more than a numeric block but no full keyboard, and it runs from a 12V supply at under 70mA. The base plate is fixed from top to bottom during assembly.
- 35 buttons cover numeric entry plus function selection on one panel
- 12V supply rail with draw under 70mA fits terminals already running 12V logic
- SUS304 brushed stainless steel panel is anti-riot and anti-corrosion
- Laser etched black characters stay legible where printed labels wear off
- Thin 14*14*1.5mm keys keep the assembly shallow behind the fascia
- Durability of more than 2 millions times matches continuous public use
Application Scenarios
- Financial equipment with combined numeric and function entry
- Communication equipment control panels
- Military equipment operator panels
- Self-service terminal equipment in public areas
- Ticketing and dispensing machines needing a larger key field
Who It Is For
- Self-service terminal manufacturers
- Financial equipment OEMs
- Communication and telecom equipment builders
- Defence panel integrators
Problems It Solves
- A 12 key numeric pad is too small once function keys are added
- Silk-screened legends rub off under heavy finger traffic
- Deep keypad assemblies will not fit a shallow fascia cavity
- 5V only keypads force an extra regulator on a 12V terminal
Technical Features
- Total of 35 buttons in an embedded panel format
- Power supply 12V plus or minus 5 percent, working current under 70mA
- USB interface with broad operating system support
- Key size 14*14*1.5mm with key trip 0.45mm
- Operation force 3N plus or minus 10 percent
- Top to bottom assembly with a fixed base plate
- Working temperature -20 degrees C to 60 degrees C
Specifications
| Buttons | 35 |
|---|---|
| Power supply | 12V±5% |
| Working current | <70mA |
| Durability | >2 millions times |
| Interface | USB |
| Key size | 14*14*1.5mm |
| Key trip | 0.45mm |
| Operation force | 3N ± 10% |
| Net weight | 0.66KG |
| Gross weight | 0.7KG |
| Working temperature | -20℃~60℃ (Relative humidity 20%~85%) |
| Storage temperature | -30℃~85℃ (Relative humidity 20%~90%) |
Materials
- SUS304 stainless steel panel
- SUS304 brushed stainless steel keys
Manufacturing Process
- Sheet metal blanking of the 35 key panel
- CNC machining of key apertures and base plate fixings
- Brushing of the stainless key tops
- Laser etching of black key characters to customer artwork
- Top to bottom assembly with the base plate fixed and USB harness fitted
Quality Control
- All 35 buttons typed through on a host before packing
- Current draw verified against the under 70mA figure at 12V
- Key travel and operation force sampled at 0.45mm and 3N ± 10%
- Etched legends checked for depth, position and contrast
Customisation Options
- Silk-screen or etching content on the keys to your requirement
- Laser etched black characters for durable legends
- Panel outline and fixing pattern matched to your fascia
- Harness length and connector type
- Alternative key grouping within the 35 key field
How It Compares
| 11 key numeric keypad | KY-3100B offers 35 buttons, so numeric and function entry share one panel. |
|---|---|
| 5V metal keypads | KY-3100B runs from a 12V±5% rail at under 70mA, avoiding an extra regulator on 12V terminals. |
| Membrane keypad overlays | Laser etched SUS304 keys keep their legends where printed membranes wear through. |
Use Guide
- Prepare the fascia cut-out and assemble from top to bottom with the base plate fixed
- Supply 12V ± 5% and connect the USB lead to the terminal PC
- Confirm all 35 buttons report before closing the enclosure
- Keep the installed ambient within -20℃~60℃
- Clean the brushed face with a damp cloth only
Questions About This Model
How many buttons does KY-3100B have?
It has a total of 35 buttons.
What supply voltage does it need?
12V±5%, drawing under 70mA in operation.
What interface does it use?
USB, compatible with Window XP, Window 7, Window 8, Window 10, Linux, Ubuntu and Android.
How is it mounted?
It is an embedded device assembled from top to bottom with the base plate fixed.
Can the key legends be customized?
Yes. Silk-screen or etching content follows the customer requirement and laser etching is used for black characters.
What does it weigh?
Net weight is 0.66KG and gross weight is 0.7KG.
Request A Quote On KY-3100B
Tell us quantity, interface and mounting method. Drawings and panel cutouts are welcome by WhatsApp or email.