Formulated Dielectric
Compositions

MRA offers the following formulated dielectric materials for sale from its 30,000 square foot manufacturing facility in North Adams, Massachusetts.

Class I Dielectrics (COG Materials)

• K22 (VLF-220Aq3) Very Low-Fired Dielectric Composition Compatible with 95Ag/5Pd internal electrode
• K22 (VLF-220Aq4) Environmentally friendly aqueous compatible and Very Low-Fire COG dielectrics with the highest Q among commercial COG dielectrics. Compatible with up to 100% Ag internal electrodes.
• K44 (VLF-440) Environmentally friendly Very Low-Fire COG dielectric. Compatible with up to 90% Ag/10% Pd internal electrodes.
• K85 (LF-085) Environmentally friendly Low-Fire COG dielectric with excellent lot to lot uniformity. Compatible with up to 75% Ag/25% Pd internal electrodes.

Class II Dielectrics (X7R Materials)

• K4400 (SF-422) Low-Fire X7R dielectric with highest-K and very high dialectric breakdown strength. Compatible with up to 70% Ag/30% PD internal electrodes.
• K4000 (HF-402) Environmentally friendly High-Fire X7R dielectric with very stable TCC curve. Compatible with up to 70% Pd/30% Ag internal electrodes.
• K3400 (VLF-342X2) Environmentally friendly Very Low-Fire X7R dielectric with excellent dielectric strength. Compatible with up to 85% Ag/15% Pd internal electrodes.
• K2800 (LF-262) Low-Fire X7R dielectric with very stable TCC curve. Compatible with up to 75% Ag/25% Pd internal electrodes.

X8R

• K2200 (LF-222) Environmentally friendly Low-Fire X8R dielectric with excellent reliability. Compatible with 85% Ag/15% Pd internal electrodes

Specialty Dielectrics

• K450 (LF-451) Environmentally friendly N2200 (negative TCC) Low-Fire dielectric with excellent voltage response. Compatible with 70% Ag/30% Pd internal electrodes.

 

Note: Special compositions can be formulated based upon customer request.

---