Bourns GDT28H Design Kit includes five pieces of each GDT28H model to provide users with protection solutions for quick-turn prototype testing. The GDT28H high-voltage Gas Discharge Tubes (GDTs) offer an improved level of voltage limiting during fast-rising events while maintaining a compact size. These GDTs also provide high insulation resistance over a wide temperature range. The GDT28H design kit is RoHS compliant and is suitable for medical devices, power supplies, and air conditioning applications.