The Metcal SMC-9HF6033S Hoof Soldering Cartridge, 60 - 900°F, 3.3mm, uses patented chip-in-cartridge technology and has a hoof tip and temperature rating of 900°. The chip-in-cartridge technology has closed looped bi-directional communication that stores and records cartridge attributes. The SMC-9HF6033S also provides traceability information and protects the power supply from non-conforming cartridges. This cartridge is backwards compatible with MX series power supplies.