MnZn · 9 shape groups · 20 part numbers · Catalogue p. 121–123
EP CoreE-type Cores Fig.1 4 Fig.2 4 Fig.3 1 Fig.4 1 Fig.5 1 Fig.6 1 Fig.7 4 Fig.8 3 Fig.9 1 Fig.1 Fig.1 Shape group 01 / 09 4 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP7 9.20±0.20 3.75±0.15 6.35±0.15 3.30±0.15 7.40±0.20 2.65±0.15 / 1.52 0.1480 15.70 10.30 161.71 1.50 EP10 11.50±0.20 5.15±0.15 7.65±0.20 3.30±0.15 9.30±0.20 3.75±0.15 / 1.70 0.1504 19.20 11.30 216.96 2.90 EP13 12.50±0.30 6.35±0.15 8.80±0.20 4.35±0.15 10.00±0.30 4.60±0.15 / 1.24 0.0636 24.20 19.50 471.90 4.80 EP15 15.00±0.30 5.50±0.15 14.00±0.30 8.00±0.20 11.55±0.30 3.30±0.20 / 0.3426 0.0064 18.40 53.70 988.08 8.00
Fig.2 Fig.2 Shape group 02 / 09 4 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP7.7×7.4×2.3 7.70±0.15 2.30±0.10 7.40±0.15 3.80±0.10 5.80±0.10 1.10±0.10 5.42±0.10 0.7117 0.0240 21.12 29.68 626.84 0.5400 EP9.7×9.5×3.15 9.70±0.15 3.15±0.10 9.50±0.15 4.60±0.10 6.80±0.10 1.30±0.08 7.40±0.10 — — — — — — EP9.7×15×4.9 9.70±0.15 4.90±0.10 15.00±0.15 4.00±0.10 6.60±0.10 3.40±0.10 12.30±0.15 — — — — — — EP9.75×8.35×3.3 9.75±0.15 3.30±0.10 8.35±0.15 4.90±0.10 6.80±0.10 1.40±0.10 6.35±0.10 — — — — — —
Fig.3 Fig.3 Shape group 03 / 09 1 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP7.98×9.54×2.86 7.98±0.10 2.86±0.08 9.54±0.10 8.10±0.10 5.11±0.10 1.15±0.10 3.87±0.10 — — — — — —
Fig.4 Fig.4 Shape group 04 / 09 1 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP8×7.1×2 8.00±0.15 2.00±0.10 7.10±0.15 3.90±0.10 6.30±0.15 1.00±0.10 0.60±0.10 0.8355 0.1388 5.03 6.02 30.28 0.9600
Fig.5 Fig.5 Shape group 05 / 09 1 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP9×8×2.5 9.00±0.15 2.50±0.10 8.00±0.15 4.00±0.15 7.00±0.15 1.50±0.15 1.00±0.15 0.6620 0.0466 9.40 14.20 133.48 1.36
Fig.6 Fig.6 Shape group 06 / 09 1 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP9.8×9.7×3.4 9.80±0.15 3.40±0.10 9.70±0.15 4.65±0.10 6.70±0.10 1.80±0.10 6.45±0.10 / / / / / 2.65
Fig.7 Fig.7 Shape group 07 / 09 4 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP14×13.5×5 14.00±0.20 5.00±0.10 13.50±0.20 7.60±0.10 12.00±0.20 3.25±0.10 — 0.4942 0.0112 21.75 44.02 957.51 5.94 EP14.5×13.85×5.25 14.50±0.30 5.25±0.10 13.85±0.20 7.50+0.05/-0.20 12.10±0.25 3.55±0.10 — 0.5202 0.0121 22.36 42.99 961.52 6.83 EP23×20.8×7.25 23.00±0.35 7.25±0.15 20.80±0.40 12.00±0.20 18.60±0.40 4.00±0.20 / 0.2703 0.0023 31.55 116.69 3680.90 12.70 EP28.2×25×6.1(H=1.5) 28.20±0.45 6.10±0.10 25.00±0.40 13.00±0.20 23.00±0.45 3.20±0.15 — 0.2601 0.0023 29.66 114.04 3382.89 /
Fig.8 Fig.8 Shape group 08 / 09 3 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP14×14×4.8 14.00±0.30 4.80±0.15 14.00±0.30 6.60±0.20 11.50±0.30 3.00±0.20 2.70±0.25 0.5432 0.0145 20.33 37.42 760.54 6.64 EP16.3×15.8×6 16.30±0.30 6.00±0.20 15.80±0.30 8.20±0.20 12.80±0.30 4.00±0.20 3.00±0.20 0.4537 0.0084 24.55 54.12 1328.79 10.98 EP17.5×17×7.5 17.50±0.30 7.50±0.20 17.00±0.30 9.40±0.20 14.00±0.30 5.20±0.20 3.00±0.20 0.3262 0.0046 23.00 70.50 1621.50 16.30
Fig.9 Fig.9 Shape group 09 / 09 1 part numbers P/N Dimensions · mm (nominal / tolerance) Effective parameters F A(mm) B(mm) C(mm) D(mm) E(mm) F(mm) G(mm) C1mm⁻¹ C2mm⁻³ Lemm Aemm² Vemm³ ≈Wtg EP23.2×23×10.4 23.20±0.30 10.40±0.10 23.00±0.35 11.40±0.20 20.30min 7.40±0.15 1.00ref 0.4006 0.0037 43.11 107.61 4638.71 15.18
This table only shows common product numbers. If the EP core you need is not listed in the above table, please do not hesitate to contact us.
Calculated from nominal dimensions per IEC 60205: C1 = ΣL/A, C2 = ΣL/A², Le = C1²/C2, Ae = C1/C2, Ve = Le×Ae; Amin = minimum cross-section; values for paired sets apply to the assembled set. ≈Wt is a reference fired-core weight — actual values vary with material and sintering, not a specification commitment; part numbers not listed have no effective-parameter data yet.
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