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Littelfuse LTKAK1.5-L TVS Diode

Littelfuse LTKAK1.5-L TVS Diode offers a clamping voltage lower than alternative technologies such as MOVs and GDTs. This diode features 1.5KA (8/20 µs) surge current and 10μA maximum reverse leakage current. The LTAK1.5-L TVS diode aids compliance with surge requirements such as IEC 61000-4-5 (Level 4). This diode provides a glass-passivated chip junction and low dynamic resistance. The LTAK1.5-L is available in a compact surface-mount SMTO218 package and is compatible with automated PCBA processes. This diode is halogen-free and RoHS compliant. Typical applications include AI/data center/ICT HVDC distribution and power supplies, EV chargers, energy storage systems, rolling stock, HVDC transmission, converters, SSTs, and SSCBs.

Features

  • High surge rating 8/20μs 1500A protection
  • SMD low-profile surface-mount package minimizing PCB footprint
  • Typical failure mode is a short from over-specified voltage or current
  • Low dynamic resistance
  • Glass-passivated chip junction
  • Whisker test is conducted based on JEDEC JESD201A per its table 4a and 4c, pass class 1 and class 2
  • IEC 61000-4-2 ESD 30kV (air) and 30kV (contact)
  • VBR at TJ = VBR at 25°C x (1+αT x (TJ - 25))(αT:temperature coefficient, typical value is 0.1%)
  • UL-recognized compound meeting flammability rating UL 94V-0
  • Pb-free E3 means the 2nd level interconnect is Pb-free and the terminal finish material is tin
  • Halogen-free
  • RoHS compliant

Applications

  • AI/Data Center/ICT HVDC distribution and power supplies
  • EV chargers, energy storage systems, and rolling stock
  • HVDC transmission, converters, power supplies, SSTs, and SSCBs
  • High Power Density AC and DC applications

I-V Curve Characteristics

Performance Graph - Littelfuse LTKAK1.5-L TVS Diode

Dimension Diagram

Mechanical Drawing - Littelfuse LTKAK1.5-L TVS Diode
Published: 2026-09-04 | Updated: 2026-10-05