IEC 60444-11 Redline version
IEC 60444-11:2026 RLV
Measurement of quartz crystal unit parameters - Part 11: Standard method for the determination of the load resonance frequency fL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction
IEC 60444-11:2026 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 60444-11:2026 defines the standard method of measuring load resonance frequency fL at the nominal value of CL, and the determination of the effective load capacitance CLeff at the nominal frequency for crystals with the figure of merit M > 4.
This edition includes the following significant technical changes with respect to the previous edition:
a) key content of withdrawn IEC TR 60444-4 is reproduced as Annex A;
b) some formulae in the first edition have been corrected.
IEC 60444-11:2026 defines the standard method of measuring load resonance frequency fL at the nominal value of CL, and the determination of the effective load capacitance CLeff at the nominal frequency for crystals with the figure of merit M > 4.
This edition includes the following significant technical changes with respect to the previous edition:
a) key content of withdrawn IEC TR 60444-4 is reproduced as Annex A;
b) some formulae in the first edition have been corrected.
CHFÂ 357.-
Technical committee
TC 49 Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detectionCategory
Quality Assurance| Publication type | International Standard |
| Publication date | 2026-04-22 |
| Edition | 2.0 |
| ICS | 31.140 |
| Stability date | 2028 |
| ISBN number | 9782832712344 |
| Pages | 56 |
| File size | 1.94 MB |
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