This part is a kind of semiconductor called T180AB-LC.

Function of this product has Low Capacitance Bi-Directional Surface Mount Thyristor Surge Protective Device.

Manufacturers : Weitron Technology

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Some of the text within the PDF file :

T110AB-LC Thru T400AB-LC T110BB-LC Thru T400BB-LC T110CB-LC Thru T400CB-LC Low Capacitance Bi-Directional Surface Mount Thyristor Surge Protective Device P b Lead(Pb)-Free IPP 50 / 75 / 100 AMPERES VDRM 90-360 VOLTS Feature: * Peak Off-State Voltage from 90 to 360 Volts. * Meet IEC61000-4-4 & -5 Industry Requirement. * Provides Protection in Accordance with FCC Part 68, UL1459,Bellcore 1089, ITU-TK. 20 & K. 21. * UL94V-0 Flammability Classification. * ESD Protection >40 kilovolts. * Low Capacitance for T1/E1 Trunk and Line Card Application. * High Surge Current Capability. SMB(DO-214AA) Mechanical Data * Case: JEDEC DO214AA. Molded Plastic Over Glass Passivated Junction * Terminal: Solder Plated, Solderable per MIL-STD-750, Method 2026 * Standard Packaging: 12mm tape(EIA STD RS-481) [ ... ]

T180AB-LC PDF Datasheet Download