Littelfuse 59040 series press-fit Firecracker reed sensors are small, cylindrical reed sensors 31 mm (1.22 in.) long that press into a 9.5 mm (.375 in.) diameter hole. They offer a choice of normally open, normally closed, or change-over contacts. They are capable of switching up to 200 VDC at 10 W and are available with a range of sensitivity, cable length, plastic housing color (white, black, and wooden brown), and connector options. They have three crush ribs along the length of the capsule that allow a firm and fixed press-fit. The sensors are well suited for position and limit sensing, security, and level sensing applications. These function best with the 57040 actuator.
Note: The 57040 actuator is sold separately.
Features
- Magnetically operated press-fit proximity sensor
- Cylindrical capsule with retaining ribs
- Operates and mounts through nonferrous materials such as wood, plastic, or aluminum
- Hermetically sealed contacts
- Customer-defined sensitivity options available
- Custom cable length and connector options available
- Press-fits into a standard drill size hole of 9.5 mm (.375 in.) diameter
Applications
- Position and limit sensing
- Security
- Appliances
- Industrial
Benefits
- Ribs on capsule compress when inserted into a mounting hole and provide retaining force, allowing simple and secure press-fit installation
- Quick and easy press-fit installation that requires no screws, brackets, nor glue
- Well suited for usage in high moisture and contaminated environments
- Non-contact solution, aesthetically more appealing than push-button or lever mechanical-type switches
- Ideal for battery-powered applications as the contacts do not draw power when in the non-activated state
- Reed contacts last for millions of operating cycles under micro-controller voltage and current logic-level loads
Sensors Product Catalog and Design Guide:
(PDF Format)
Position/Proximity Sensing:
(PDF Format)
