A study has been made of capacitively shunted Pb variable‐thickness microbridges. The observed hystereticI‐Vcharacteristics of these microbridges are in at least qualitative agreement with the predictions of the shunted junction model. Discrepancies between the model and experiment are attributed, in part, to the inductance of the microbridge and capacitor films. In some cases, a voltage‐switching structure is also observed, which is due to geometrical resonances in the thin‐film structure.