The HT40RP is DIAC 35-45V 2A DO35, that includes Tape & Reel (TR) Packaging, they are designed to operate with a DO-204AH, DO-35, Axial Package Case, Supplier Device Package is shown on datasheet note for use in a DO-35, that offers Current Peak Output features such as 2A, Voltage Breakover is designed to work in 35 ~ 45V, as well as the 15μA Current Breakover.
The HT-410 is MINI COAX FML. EXTRACTION TOOL, that includes Extraction Tool Tool Type, they are designed to operate with a Coaxial, RF Connectors For Use With Related Products.
HT42B534-1 with circuit diagram manufactured by HOLTEK. The HT42B534-1 is available in SOP8 Package, is part of the IC Chips.
HT44R70 with EDA / CAD Models manufactured by HT. The HT44R70 is available in SOP28 Package, is part of the IC Chips.
HT45-2100UWC with PDF manufactured by HARVATEK. The HT45-2100UWC is available in SMD Package, is part of the IC Chips.