20 Pcs RY Series TF 121 Celsius Degree 250V 10A Thermal FuseCategory: 121 SeriesMetal RY thermal fuse (thermal cut off, temperature fuse) which use heat sensitive grain materials (organic chemical) as heat sensitive material. Function is to cut off the circuit of appliances when temperature exceed specified TF value because of unexpected fault. Widely used in electric current provider, power switch, computer, telephone, home appliance, communication products, all kinds of instrument and electronic and electric components, motor and all kinds of small home appliance such as electric iron, thermoelectric blower, microwave oven, refrigerator etc as heat protection, etc. For CALIFORNIA residents only: WARNING: This product contains chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm.Please note that by posting this Proposition 65 warning, we are notifying you that one or more of the Proposition 65 listed chemicals may be present in a product. With Unique Bargains' products, the exposure to these chemicals may be of no significant risk to you, but out of caution, we have elected to place this warning on our site to make sure our customers are informed.You can find more information at http://www.oehha.ca.gov/proposition-65/about-proposition-65.