IEC 61261-1:1994

Piezoelectric ceramic filters for use in electronic equipment - A specification in the IEC quality assessment system for electronic components (IECQ) - Part 1: Generic specification - Qualification approval

IEC 61261-2:1994

Piezoelectric ceramic filters for use in electronic equipment - A specification in the IEC quality assessment system for electronic components (IECQ) - Part 2: Sectional specification - Qualification approval

IEC 61261-2-1:1994

Piezoelectric ceramic filters for use in electronic equipment - A specification in the IEC quality assessment system for electronic components (IECQ) - Part 2: Sectional specification - Qualification approval - Section 1: Blank detail specification - Assessment level E