Project Description

planar er cores

The ER core design is derived from the original E cores. Like ETD cores and EC cores, it has a round center pole and outer legs with a radius to accommodate round coil formers. These cores are mainly used for power transformers. The round center pole allows the use of thicker wires while the shorter turn length keeps the copper losses low. Planar ER cores are very suitable to build small SMD or planar power and signal transformers. The 3 smallest sizes matching SMD coil formers and clips are available.

Summary:

  • Round center pole
  • Outer legs with a radius
  • Smallest sizes
  • SMD coil formers and clips are available
  • Moderate shielding
TypeMaterialLef [mm] *Aef [mm2] *Vef [mm3] *AL [nH/turns2]Gap [µm]µeROHSSpecifications
ER11_2.5_6-3C92-A100-S3C9214.711.9174100≈ ±4%≈140
≈98YES
ER11_2.5_6-3C92-S3C9214.711.91741050±25%ungapped≈1030YES
ER11_2.5_6-3C95-A100-S3C9514.711.9174100≈ ±4%≈140≈98YES
ER11_2.5_6-3C95-S3C9514.711.91741620±25%ungapped≈1600YES
ER11_2.5_6-3C96-A100-S3C9614.711.9174100≈ ±4%≈140≈98YES
ER11_2.5_6-3C96-S3C9614.711.91741250±25%ungapped≈1230YES
ER11_2.5_6-3C97-A100-S3C9714.711.9174100≈ ±4%≈140≈98YES
ER11_2.5_6-3C97-S3C9714.711.91741620±25%ungapped≈1600YES
ER11_2.5_6-3F36-A100-S3F3614.711.9174100≈ ±4%≈140≈98YES
ER11_2.5_6-3F36-S3F3614.711.91741000±25%ungapped≈980YES
ER11_2.5_6-3F46-A100-S3F4614.711.9174100≈ ±4%≈130≈98YES
ER11_2.5_6-3F46-S3F4614.711.9174610±25%ungapped≈600YES
ER14.5_3_7-3C92-A100-S3C921917.6333100≈ ±3%≈210≈86YES
ER14.5_3_7-3C92-A160-S3C921917.6333160≈ ±4%≈130≈140YES
ER14.5_3_7-3C92-S3C921917.63331250±25%ungapped≈1070YES
ER14.5_3_7-3C95-A160-S3C951917.6333160≈ ±4%≈130≈140YES
ER14.5_3_7-3C95-A63-S3C951917.633363≈ ±3%≈340≈54YES
ER14.5_3_7-3C95-S3C951917.63331850±25%ungapped≈1600YES
ER14.5_3_7-3C96-A100-S3C961917.6333100≈ ±3%≈210≈86YES
ER14.5_3_7-3C96-A160-S3C961917.6333160≈ ±4%≈130≈140YES
ER14.5_3_7-3C96-S3C961917.63331500±25%ungapped≈1300YES
ER14.5_3_7-3C97-A160-S3C971917.6333160≈ ±4%≈130≈140YES
ER14.5_3_7-3C97-A63-S3C971917.633363≈ ±3%≈340≈54YES
ER14.5_3_7-3C97-S3C971917.63331850±25%ungapped≈1600YES
ER14.5_3_7-3F36-A100-S3F361917.6333100≈ ±3%≈210≈86YES
ER14.5_3_7-3F36-A160-S3F361917.6333160≈ ±4%≈120≈140YES
ER14.5_3_7-3F36-S3F361917.63331150±25%ungapped≈990YES
ER14.5_3_7-3F46-A100-S3F461917.6333100≈ ±3%≈200≈86YES
ER14.5_3_7-3F46-A160-S3F461917.6333160≈ ±4%≈110≈140YES
ER14.5_3_7-3F46-S3F461917.6333730±25%ungapped≈630YES
ER18_3.2_10-3C92-A100-S3C9222.1
30.2667100≈ ±3%≈370≈58YES
ER18_3.2_10-3C92-S3C9222.130.26671900±25%ungapped≈1100YES
ER18_3.2_10-3C95-A100-S3C9522.130.2667100≈ ±3%≈370≈58YES
ER18_3.2_10-3C95-S3C9522.130.26673000±25%ungapped≈1750YES
ER18_3.2_10-3C96-A100-S3C9622.130.2667100≈ ±3%≈370≈58YES
ER18_3.2_10-3C96-S3C9622.130.26672400±25%ungapped≈1400YES
ER18_3.2_10-3C97-A100-S3C9722.130.2667100≈ ±3%≈370≈58YES
ER18_3.2_10-3C97-S3C9722.130.26673120±25%ungapped≈1800YES
ER18_3.2_10-3F36-A100-S3F3622.130.2667100≈ ±3%≈360≈58YES
ER18_3.2_10-3F36-S3F3622.130.26671700±25%ungapped≈990YES
ER18_3.2_10-3F46-A100-S3F4622.130.2667100≈ ±3%≈350≈58YES
ER18_3.2_10-3F46-S3F4622.130.26671100±25%ungapped≈640YES
ER23_3.6_13-3C92-A250-S3C9226.650.21340250±5%≈230≈105YES
ER23_3.6_13-3C92-A400-S3C9226.650.21340400≈ ±7%≈140≈170YES
ER23_3.6_13-3C92-S3C9226.650.213402800±25%ungapped≈1200YES
ER23_3.6_13-3C95-A250-S3C9526.650.21340250≈ ±5%≈240≈105YES
ER23_3.6_13-3C95-A400-S3C9526.650.21340400≈ ±7%≈150≈170YES
ER23_3.6_13-3C95-S3C9526.650.213404460±25%ungapped≈1900YES
ER23_3.6_13-3C96-A315-S3C9626.650.21340315≈ ±6%≈190≈133YES
ER23_3.6_13-3C96-A400-S3C9626.650.21340400±5%≈140≈170YES
ER23_3.6_13-3C96-S3C9626.650.213403400±25%ungapped≈1430YES
ER23_3.6_13-3C97-A250-S3C9726.650.21340250≈ ±5%≈240≈105YES
ER23_3.6_13-3C97-A400-S3C9726.650.21340400≈ ±7%≈150≈170YES
ER23_3.6_13-3C97-S3C9726.650.213404460±25%ungapped≈1900YES
ER23_3.6_13-3F36-A315-S3F3626.650.21340315≈ ±6%≈180≈133YES
ER23_3.6_13-3F36-A400-S3F3626.650.21340400≈ ±7%≈140≈170YES
ER23_3.6_13-3F36-S3F3626.650.213402500±25%ungapped≈1050YES
ER23_3.6_13-3F46-A250-S3F4626.650.21340250≈ ±5%≈220≈105YES
ER23_3.6_13-3F46-A400-S3F4626.650.21340400≈ ±7%≈120≈170YES
ER23_3.6_13-3F46-S3F4626.650.213401400±25%ungapped≈670YES
ER32_6_25-3C923C9238.214154005700±25%ungapped≈1230YES
ER32_6_25-3C953C9538.214154009640±25%ungapped≈2100YES
ER32_6_25-3C963C9638.214154007160±25%ungapped≈1540YES
ER32_6_25-3C973C9738.214154009640±25%ungapped≈2100YES
ER32_6_25-3F363F3638.214154004900±25%ungapped≈1060YES
ER32_6_25-3F43F438.214154003600±25%ungapped≈780YES
ER41_7.6_32-3C923C9257225129006500±25%ungapped≈1300YES
ER41_7.6_32-3C953C95572251290010800±25%ungapped≈2200YES
ER41_7.6_32-3C963C9657225129008100±25%ungapped≈1630YES
ER41_7.6_32-3C973C97572251290011120±25%ungapped≈2200YES
ER41_7.6_32-3F363F3657225129005400±25%ungapped≈1100YES
ER41_7.6_32-3F43F457225129003900±25%ungapped≈790YES
ER51_10_38-3C923C9273.5351258008100±25%ungapped≈1350YES
ER51_10_38-3C953C9573.53512580014230±25%ungapped≈2400YES
ER51_10_38-3C963C9673.53512580010200±25%ungapped≈1700YES
ER51_10_38-3C973C9773.53512580014230±25%ungapped≈2400YES
ER51_10_38-3F363F3673.5351258006500±25%ungapped≈1100YES
ER51_10_38-3F43F473.5351258004800±25%ungapped≈800YES
ER64_13_51-3C923C92935665260010600±25%ungapped≈1400YES
ER64_13_51-3C953C95935665260018920±25%ungapped≈2500YES
ER64_13_51-3C963C96935665260013400±25%ungapped≈1750YES
ER64_13_51-3C973C97935665260018920±25%ungapped≈2500YES
ER64_13_51-3F363F3693566526008300±25%ungapped≈1100YES
ER64_13_51-3F43F493566526006100±25%ungapped≈800YES
ER9.5_2.5_5-3C92-A100-S3C9214.28.47120100≈ ±5%≈97≈133YES
ER9.5_2.5_5-3C92-S3C9214.28.47120750±25%ungapped≈1000YES
ER9.5_2.5_5-3C95-A100-S3C9514.28.47120100≈ ±5%≈100≈133YES
ER9.5_2.5_5-3C95-S3C9514.28.471201150±25%ungapped≈1530YES
ER9.5_2.5_5-3C96-A100-S3C9614.28.47120100≈ ±5%≈99≈133YES
ER9.5_2.5_5-3C96-S3C9614.28.47120900±25%ungapped≈1200YES
ER9.5_2.5_5-3C97-A100-S3C9714.28.47120100≈ ±5%≈100≈133YES
ER9.5_2.5_5-3C97-S3C9714.28.471201150±25%ungapped≈1530YES
ER9.5_2.5_5-3F36-A100-S3F3614.28.47120100≈ ±5%≈96≈133YES
ER9.5_2.5_5-3F36-S3F3614.28.47120700±25%ungapped≈930YES
ER9.5_2.5_5-3F46-A100-S3F4614.28.47120100≈ ±5%≈88≈133YES
ER9.5_2.5_5-3F46-S3F4614.28.47120440±25%ungapped≈590YES