Littelfuse AK8-FB Axial Leaded TVS Diodes
Littelfuse AK8-FB Axial Leaded TVS Diodes are designed to meet the severe surge-test environment for both AC and DC line-protection applications. These diodes offer an 8kA current rating and are capable of both reflow and wave soldering. The AK8-FB TVS diodes feature a very fast response and ultra-low clamping characteristics as compared to Metal Oxide Varistors (MOVs). These diodes provide a clamping voltage lower than the avalanche voltage (but above the rated working voltage). The AK8-FB TVS diodes maintain any voltage rise due to increased current conduction at a minimum magnitude, providing the best possible protection level. These diodes are halogen-free and RoHS compliant.
Features
- Controlled Foldback technology for superior clamping performance
- Both reflow and wave soldering capable
- Typical failure mode is a short from over-specified voltage or current
- Low dynamic resistance
- Glass-passivated junction
- 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
- Pb-free E4 means the 2nd level interconnect is Pb-free and the terminal finish material is silver
- Halogen-free
- RoHS compliant
Specifications
- 450V to 470V reverse standoff voltage range
- 10μA maximum reverse leakage current
- 525V to 537V maximum breakdown voltage range
- 10mA test current
- 0.1%/°C maximum temperature coefficient
- 8kA current rating
- -55°C to +150°C operating storage temperature range
- -55°C to +125°C operating junction temperature range
I-V Curve Characteristics
Dimension Diagram
Published: 2026-09-04
| Updated: 2026-10-05