Project Description

Ferrite U and UR Cores

UR ferrite cores are suitable for line output transformers (LOT) in TV sets. The round leg allows easy winding, also of strip conductors. Because of the high voltages involved, the round shape helps to prevent corona effect.

TypeMaterialLef [mm] *Aef [mm2] *Vef [mm3] *AL [nH/turns2]Gap [µm]µeROHSSpecifications
UR35/27.5/13-3C903C90129129166402600±25%ungapped≈2100YES
UR37/26/18-3C903C90128148189003000±25%ungapped≈2100YES
UR39/35/15-3C903C90163149243002200±25%ungapped≈1900YES
UR42/21/12-3C903C90113104
118002400±25%ungapped≈2100YES
UR46/21/11-3C903C90129
88116001800±25%ungapped≈2100YES
UR48/39/17-3C903C90186215399903000±25%ungapped≈2100YES
UR55/38/36-3C903C90188418785705850±25%ungapped≈2100YES
UR57/28/16-3C903C90163
171
279002600±25%ungapped≈2000YES
UR59/36/17-3C903C90189210397002900±25%ungapped≈2100YES
UR64/29/14-3C903C90185147
27040
2000±25%ungapped≈2000YES
UR64/40/20-3C903C90210290
610003700±25%ungapped≈2100YES
UR64/40/20-D-3C903C90211308649003800±25%ungapped≈2100YES
UR70/33/17-3C903C90
3C90214
43800ungapped≈2100YES