These DO-214AA unidirectional protectors are constructed with a SIDACtor® device and an integrated diode. They protect SLICs (Subscriber Line Interface Circuits) from damage during transient voltage activity and enable line cards to meet various regulatory requirements including GR 1089, ITU K.20, K.21 and K.45, IEC 60950, UL 60950, and TIA/EIA-IS-968 (formerly known as FCC Part 68).Notes: All measurements are made at an ambient temperature of 25°C. Ipp applies to -40°C through +85°C temperature range. Ipp is a repetitive surge rating and is guaranteed for the life of the product. Listed SIDACtor devices are bi-directional. All electrical parameters & surge ratings apply to forward and reverse polarities. Vdrm is measured at Idrm. Vs is measured at 100V/µs. Special voltage (Vs & Vdrm) and holding current (Ih) requirements are available upon request. Off-state capacitance is measured at 1MHz with a 2V bias and is a typical value. Parallel capacitive loads may affect electrical parameters.