Littelfuse AK3-FB Axial Leaded TVS Diodes
Littelfuse AK3-FB Axial Leaded TVS Diodes are designed to meet the severe surge-test environment for both AC and DC line-protection applications. These diodes feature a very fast response and ultra-low clamping characteristics as compared to Metal Oxide Varistors (MOVs). The AK3-FB TVS diodes offer a 3kA current rating and are capable of both reflow and wave soldering. These diodes maintain any voltage rise due to increased current conduction at a minimum magnitude, providing the best possible protection level. The AK3-FB TVS diodes are connected in series and/or parallel to create a very high surge current protection solution. These diodes are halogen-free and RoHS compliant.
Features
- Both reflow and wave soldering capable
- Typical failure mode is a short from over-specified voltage or current
- Less than one-tenth the size of traditional discrete solutions
- Sharp breakdown voltage
- Symmetric in lead width for easier soldering during assembly
- IEC 61000-4-2 ESD 15kV(air) and 8kV (contact)
- EFT protection of data lines in accordance with IEC 61000-4-4
- Glass-passivated junction
- Pb-free E4 means the 2nd level interconnect is Pb-free and the terminal finish material is silver
- Halogen-free
- RoHS compliant
I-V Curve Characteristics
Dimension Diagram
Published: 2026-09-02
| Updated: 2026-09-03