At Littelfuse, we continue to build on our success by developing innovative products, strengthening our customer relationships, making strategic acquisitions and capitalizing on growing markets around the world.

Our acquisition of U.S. Sensor Corporation’s assets positions our business for continued success and growth, and expands our sensor portfolio with thermistors and probe assemblies used in the most demanding temperature sensing applications for the electronics and industrial markets. In addition, the acquired business brings strong design capabilities that complement our growth initiatives.    

Added Product Technologies

Transition to Littelfuse

A full integration will take some time and will provide benefits for both Littelfuse and U.S. Sensor customers alike. As we look to the future, we are excited about the opportunities to come.

Frequently Asked Questions

Where will I find product information and technical resources?
Product and technical information is available at the Littelfuse Temperature Sensors.

Where do I go for technical and sales support?
For technical and sales inquiries, contact

Toll Free: 800-777-6467
Tel: 714-639-1000
Fax: 714-639-1220

How can I check my orders?
Please continue to work with your U.S. Sensor contact for updates on orders and deliveries.

How can I check distributor inventory?
Please check inventory at your preferred distributor online or contact your local sales representative.

How can I search for specific technical documents?
At this time, all technical information is available at the Littelfuse Temperature Sensors.

How can I view competitor cross reference information?
Please submit your inquiry for competitor cross information to