The ULN2003ADR is an essential component in many electronic systems, particularly in driving relays, stepping motors, and LEDs. As an integrated Darlington transistor array, it provides high-voltage and high-current driving capabilities while minimizing the need for additional external components. However, despite its versatility and wide application, like all integrated circuits (ICs), the ULN2003ADR is susceptible to failures if not properly handled and maintained.