Metal Keypad
KY-3688LP 16 Key Metal Keypad With 122*32 LCD
KY-3688LP is a 16 key brushed SUS304 stainless steel keypad with an integrated 122*32 LCD so the terminal can prompt and confirm entry at the keypad itself.
Product Overview
KY-3688LP is a 16 key brushed SUS304 stainless steel keypad with an integrated 122*32 LCD so the terminal can prompt and confirm entry at the keypad itself. RS232 output and a -20 to 70 degrees C operating range suit embedded equipment in hot and cold locations. It is used on final equipment communication equipment military equipment and terminal equipment.
- Integrated 122*32 LCD shows prompts without a separate display module
- Operation temperature reaches 70 degrees C for hot cabinet installations
- SUS304 brushed stainless steel panel is anti riot and anti corrosion
- Black characters can be laser etched onto the keys
- RS232 support connects directly to embedded controllers
- Front mounting places the display and keys flush in the fascia
Application Scenarios
- Communication equipment cabinets
- Military equipment operator panels
- Terminal equipment needing local prompts
- Final equipment assembly stations
- Hot equipment enclosures up to 70 degrees C
- Embedded controllers using RS232
Who It Is For
- Communication equipment manufacturers
- Defence equipment integrators
- Embedded terminal builders
- Machine OEMs needing a keypad and display in one part
Problems It Solves
- A separate display module adds a second cutout and cable
- Keypads fail in enclosures that run hot
- Embedded controllers have no USB host for input devices
- Printed key legends wear off in service
Technical Features
- Total 16 keys with a 122*32 LCD
- Key size 23*18*5.1mm and 39*18*5.1 with 0.45mm key trip
- Operation force 3N+/-0.1N contact force
- Working power 5V plus or minus 5 percent with current under 150mA
- Durability above 2Million operations
- Operation temperature -20 to 70 degrees C and storage -30 to 80 degrees C
- Front mounting installation
Specifications
| Keys | 16 |
|---|---|
| LCD | 122*32 |
| Working Power | 5V±5% |
| Working Current | <150mA |
| Durability | >2Million |
| Interface | Support RS232 |
| Key size | 23*18*5.1mm / 39*18*5.1 |
| Key Trip | 0.45mm |
| Operation Force | 3N+/-0.1N（ contact force） |
| Mounting Way | Front mounting |
| Operation temperature | -20℃~70℃ |
| Storage Temperature | -30℃~80℃ |
Materials
- Brushed SUS304 stainless steel panel
- SUS304 brushed stainless steel keys
Manufacturing Process
- SUS304 panel forming and brushing
- CNC punching of the LCD window and 16 key apertures
- Laser etching of black characters on the keys
- LCD module fitting and sealing behind the window
- RS232 interface board assembly
- High temperature functional check
Quality Control
- LCD pixel and contrast inspection on the 122*32 display
- Operation force verified at 3N+/-0.1N
- Function test at the upper 70 degrees C limit
- Travel confirmed at 0.45mm
- Life sampling above 2Million operations
Customisation Options
- Accepted customization of the layout with the 122*32 LCD
- Laser etched black character content
- Cable length for the cabinet run
- Panel cutout and fixing for front mounting
- Key arrangement within the 16 key field
How It Compares
| Keypads without a display | The 122*32 LCD gives local prompts without a second cutout or module |
|---|---|
| KY-3088LP-2 | Operation up to 70 degrees C and an integrated LCD rather than the -40 degrees C cold build |
| USB keypads | RS232 support connects directly to embedded controllers without a USB host |
Use Guide
- Prepare a front mounting cutout that includes the LCD window
- Confirm the controller offers RS232 before ordering
- Operate between -20 and 70 degrees C
- Store between -30 and 80 degrees C
- Agree the LCD layout and key etching before production
Questions About This Model
Does KY-3688LP include a display?
Yes it has a 122*32 LCD alongside a total of 16 keys.
What interface does it use?
It supports RS232.
How hot can it operate?
Operation temperature is -20℃~70℃.
How is it mounted?
Front mounting.
What are the key sizes?
23*18*5.1mm and 39*18*5.1 with a 0.45mm key trip.
Can the layout be customized?
Yes customization of the layout with the 122*32 LCD is accepted.
Request A Quote On KY-3688LP
Tell us quantity, interface and mounting method. Drawings and panel cutouts are welcome by WhatsApp or email.