LTCC / HTK-025
HTK-025 LTCC Material Data and Evaluation
HTK-025 is positioned for high-dielectric-constant applications. Review the representative values below together with thickness, firing profile, conductor system and shrinkage tolerance before qualification.
HTK-025
Preliminary selection summary
- Material
- LTCC
- Selection focus
- High-dielectric-constant applications
- Data status
- Representative preliminary-selection value
- TDS
- Current controlled version on request
- Website data review
- 2026-09-15
HTK-025
Representative technical data
Swipe horizontally to view all specifications.
| Property | Value | Condition / status |
|---|---|---|
| Classification | LTCC | Representative preliminary-selection value |
| Feature | High dielectric | Representative preliminary-selection value |
| XY shrinkage | 12.8% | Representative preliminary-selection value |
| XY accuracy | ±0.3% | Representative preliminary-selection value |
| Z shrinkage | 22–26% | Representative preliminary-selection value |
| Density | 3.6±0.03 g/cm³ | Representative preliminary-selection value |
| Flexural strength | ≥190 MPa | Representative preliminary-selection value |
| Dielectric constant (1 MHz) | 26±1 | Representative preliminary-selection value |
| tanδ (1 MHz) | <0.003 | Representative preliminary-selection value |
| Dielectric constant (10 GHz) | 27 | Representative preliminary-selection value |
| tanδ (10 GHz) | — | Representative preliminary-selection value |
| CTE | 10.7 ppm/K | Representative preliminary-selection value |
| Thermal conductivity | 1.7 W/m·K | Representative preliminary-selection value |
| Elastic modulus | 104 GPa | Representative preliminary-selection value |
| Green-sheet thickness | 55–200 µm | Common catalog range |
| Maximum catalog format | Up to □500 mm | Grade, thickness and project review required |
| Firing temperature | Not stated in supplied catalog; confirm current TDS | Confirm by current TDS and process review |
The approved specification, current TDS and agreed test method take priority over website values.
Process review
Check the complete material system, not one number.
Qualification should cover green-sheet condition, printing, via filling, drying, lamination, firing, dimensional compensation and final electrical performance.
- Confirm usable size and fired dimensions
- Confirm conductor and via-paste compatibility
- Run prototype and lot-to-lot verification
- Not represented as a drop-in replacement
FAQ
Questions before qualification
Are the website values guaranteed?
No. They are representative preliminary-selection values. Guaranteed values require a current controlled specification.
Can this grade replace an existing material directly?
A replacement evaluation is required for firing, shrinkage, conductor compatibility, dimensions and finished performance.
What should be sent for a sample review?
Send the target size, thickness, firing profile, frequency, dielectric/loss targets, shrinkage tolerance, conductor and prototype quantity.
Technical validation
Request the controlled TDS and a project-specific review.
HTK coordinates material selection, sample preparation, factory confirmation and quality communication.