KD2-21 button with backlight (green), ON-ON, with latching, 8 pin, 2.4V / 12V
Very convenient button with reliable latching and backlighting, suitable for panel mounting. It has 8 contacts (SDPDT), which allows it to be used in various control and indication circuits.
Works in ON-ON mode: when pressed, the button is fixed in the on state, pressing it again turns it off. The built-in LED is available in two power versions: 2.4V or 12V.
Advantages and features:
- Status latching— convenient power and function control.
- Built-in green LED backlight.
- 8 pins / SDPDT — flexible connection.
- Durable plastic housing designed for long-term use.
Technical specifications:
| Model | KD2-21 |
| Operation algorithm | ON - ON (latched) |
| Number of contacts | 8 pin |
| Pin diagram | SDPDT |
| Backlight | LED 2.4V / LED 12V |
| Backlight color | Green |
| Body material | Plastic |
| Maximum current | 3A 250VAC |
| Button height | 35 mm |
| Mounting cutout | 17.2 × 17.2 mm |
| Temperature range | -25°C ~ +85°C |
| Protection class | IP40 |
| Lifetime | ≈ 10,000 cycles |
| Fixation | Yes |
Application:
- Control panels and remote controls
- Modular DIY and amateur radio projects
- Electronics, automation, controllers
- Arduino / ESP / STM projects
- Small equipment control units
Warning: The appearance of the product (case color, frame shape, LED brightness) may vary slightly depending on the production batch. This does not affect the characteristics and operation.