DIFF Main Group
H10W 44/00 Electrical arrangements for controlling or matching impedance
Introduced: January 2026
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
IPC defines codes here since 2026.
Child Classifications
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- H10W 44/20 at high-frequency [HF] or radio frequency [RF] since 2026 +6 CPC IPC+CPC Available in IPC and CPC