P0721AA2L

This two-chip SLIC modified TO-220 unidirectional protector is constructed with a SIDACtor^® device and an integrated diode. It protects SLICs (Subscriber Line Interface Circuits) from damage during transient voltage activity and enables line cards to comply with various regulatory requirements including GR 1089, ITU K.20, K.21 and K.45, IEC 60950, UL 60950, and TIA-968-A (formerly known as FCC Part 68).

For details of specific design criteria, see Figure 6.40 through Figure 6.43 in Section 6, "Reference Designs" of this Telecom Design Guide.