
Desktop Keyboard
KY-TB-38-C2 Stainless Steel Keypad With Waterproof Mechanical Buttons
KY-TB-38-C2 is a stainless steel keypad using waterproof mechanical switch buttons with round 16mm key tops. Current draw is only 30mA at 5V DC, which suits equipment running on a tight power budget.
Product Overview
KY-TB-38-C2 is a stainless steel keypad using waterproof mechanical switch buttons with round 16mm key tops. Current draw is only 30mA at 5V DC, which suits equipment running on a tight power budget. The unit is assembled from top to bottom with the panel fixed and weighs 1.3Kg net.
- Waterproof mechanical switch buttons keep working after spills and washdown
- Round 16mm key tops are easy to locate by touch
- Very low draw of 30mA at 5V DC leaves headroom in the terminal supply
- SUS304 stainless steel panel is anti-riot and anti-corrosion
- 1.5mm key trip with 1.5N ± 10% force gives clear tactile feedback
- Durability of more than 2 million times for continuous use

Application Scenarios
- Industrial equipment control panels exposed to liquid
- Self-service terminals cleaned with wet cloths
- Food and beverage equipment operator panels
- Outdoor sheltered control stations
- Machine panels where operators wear gloves
Who It Is For
- Industrial equipment manufacturers
- Food and beverage machinery builders
- Terminal and kiosk integrators
- Maintenance teams replacing water damaged keypads
Problems It Solves
- Short travel membrane keys give little feedback through gloves
- Liquid ingress through key apertures kills standard keypads
- Power constrained equipment cannot afford a 150mA input device
- Square keys are hard to find by touch on a dark panel
Technical Features
- Stainless steel mechanical switch buttons with waterproof construction
- Round key size of 16mm diameter
- Key trip 1.5mm with key force 1.5N plus or minus 10 percent
- Power supply 5V plus or minus 5 percent at +5V DC @ 30mA
- Product interface USB or PS/2
- Mounted from top to bottom with the panel fixed
- Operating temperature -10 degrees C to 45 degrees C
Specifications
| Power supply | 5V±5% |
|---|---|
| Working current | +5V DC @ 30mA |
| Durability | >2 million times |
| Product interface | USB/PS/2 |
| Key size | ∅16mm |
| Key trip | 1.5mm |
| Key force | 1.5N ± 10% |
| Mounting mode | From top to bottom, panel fixed assembly |
| Net weight | 1.3Kg |
| Gross weight | 1.5Kg |
| Operating temperature | -10℃~45℃ (relative humidity 20%~85%) |
| Storage temperature | -30℃~85℃ (relative humidity 20%~90%) |
Materials
- SUS304 stainless steel panel
- Stainless steel mechanical switch buttons
Manufacturing Process
- Stainless panel blanking and forming
- CNC machining of the round 16mm key apertures
- Surface finishing of the panel face
- Waterproof mechanical switch fitting and sealing
- Top to bottom panel fixed assembly and electrical test
Quality Control
- Every mechanical switch actuated and logged before packing
- Waterproof sealing of each button checked at assembly
- Key force sampled against 1.5N ± 10%
- Current draw verified at the 30mA figure on a 5V supply
Customisation Options
- Key legend marking to your artwork
- USB or PS/2 interface selected at order
- Panel outline and fixing pattern to your equipment
- Key count and arrangement within the panel
- Cable length and connector type
How It Compares
| Short trip metal keypads | KY-TB-38-C2 uses waterproof mechanical switches with 1.5mm travel rather than a 0.45mm membrane action. |
|---|---|
| Square key metal keypads | The ∅16mm round keys are easier to locate by touch on an unlit panel. |
| 150mA class keypads | Current draw is only 30mA at 5V DC, which matters on a tight power budget. |
Use Guide
- Machine the panel for the ∅16mm key apertures to the supplied drawing
- Assemble from top to bottom with the panel fixed
- Connect USB or PS/2 and confirm each button reports
- Keep the supply at 5V ± 5%
- Operate within -10℃~45℃ and store within -30℃~85℃
Industries
Solutions
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View SpecificationQuestions About This Model
What switch type does KY-TB-38-C2 use?
Stainless steel mechanical button switches with waterproof buttons.
What is the key size?
Keys are ∅16mm with a key trip of 1.5mm.
How much current does it draw?
+5V DC @ 30mA in operation.
What interfaces are available?
USB or PS/2, supporting Windows XP through Windows 10, Linux, Ubuntu and Android.
How is it mounted?
From top to bottom with the panel fixed in assembly.
What does it weigh?
Net weight is 1.3Kg and gross weight is 1.5Kg.
Request A Quote On KY-TB-38-C2
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