EX-257/H-557
- Field
-
Electrical and electronic materials
Two-component potting epoxy resin,
excellent heat shock resistance type - Characteristic performance
- Low viscosity Heat cycle Low linear expansion Flammability
- Application method
- Power module Electrical components
Typical characteristics
| Item | Unit | Data | |
| Product name | A | - |
EX-257 |
| B | - | H-557 | |
| Mixture ratio （Ａ／Ｂ） | By weight | - | 100/85 |
| Mixture viscosity (23℃) | Pa･s | 32 | |
| Mixture specific gravity (23℃) | - | 1.76 | |
| Cure schedule | - | 80℃/2.5hr+100℃/4.5hr | |
| Glass transition temperature | ℃ | 108 | |
| Coefficient of linear expansion (α1) | ppm/℃ | 25 | |
| Volume resistance (23℃) | Ω・m | 5.0 E+13 | |
| Breakdown voltage (23℃) | kV/mm | 23 | |
| Bending strength (23℃) | MPa | 111 | |
| Flammability (UL-94) | - | V-0 | |
Above data is believed to be correct and represents typical values. Not intended for use specifications.
Inquiries
Please feel free to contact us, such as consultation on the detailed information for products.
