Hendon Semiconductors' temperature control ICs are designed to increase performance and sensing capabilities in a wide range of thermostat applications. Hendon's OM1654A triac control IC features zero-crossing switching of resistive loads for low EMI and is an ideal replacement for a traditional bimetallic switch. The IES5521A features a time out timer for safer use of heating appliances. The OM1682A is designed for use in circuits that drive inductive and resistive loads where greater accuracy is required and external input/output access would be beneficial.