Littelfuse AK-FL TVS Diodes

Littelfuse AK-FL TVS Diodes are high‑power bi‑directional TVS diodes designed to protect AC and DC power lines in environments exposed to severe surge and transient events. These diodes use FlatSuppressX™ technology to deliver ultra‑low and flat clamping voltage, providing significantly better protection than traditional Metal Oxide Varistors (MOV). The AK-FL diodes feature very fast response times, sharp breakdown characteristics, and high surge current capability, ensuring robust protection against lightning and switching transients. The AK‑FL diodes are ultra‑compact, halogen‑free, RoHS-compliant, and support both reflow and wave soldering for flexible manufacturing. These AK‑FL TVS diodes are up-screened to provide high reliability for avionics applications.

Features

FlatSuppressX™ TVS provides superior surge protection
Maintains a flat and stable clamping voltage through its advanced foldback I‑V characteristics
High-reliability devices with fabrication and assembly lot traceability
Both reflow and wave soldering capable
Typical failure mode is short from over-specified voltage or current
Supports 6kA, 8kA, and 10kA current ratings
Ultra compact, less than one-tenth the size of traditional discrete solutions
Sharp breakdown voltage

Symmetric in leads width for easier soldering during assembly
IEC 61000-4-2 ESD 15kV (air), 8kV (contact)
EFT protection of data lines in accordance with IEC 61000-4-4
Halogen-free and RoHS compliant
Glass passivated junction
-55°C to 125°C operating temperature range
Pb-free E4 means the 2^nd level interconnect is Pb-free and the terminal finish material is silver