MnZn · 5 shape groups · 14 part numbers · Catalogue p. 247–249
RU CoreShield & Bead Cores Fig.1 2 Fig.2 2 Fig.3 5 Fig.4 4 Fig.5 1 Fig.1 Fig.1 Shape group 01 / 05 2 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 RU6×5.3×4.6 6.00±0.15 5.30±0.15 4.60±0.15 2.35±0.15 2.70±0.15 2.90±0.15 1.40±0.15 — — — — — — RU10×7.7×7.25 10.00±0.30 7.25±0.30 7.70±0.20 3.20±0.20 3.65±0.15 5.95±0.20 2.00±0.20 — — — — — —
Fig.2 Fig.2 Shape group 02 / 05 2 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 RU10×4.6×19.95 10.00±0.25 4.60±0.15 19.95±0.35 — 5.10±0.20 2.45min — 0.6464 0.0152 27.49 42.53 1169.19 / RU12.3×6.2×25.4 12.30±0.35 6.20±0.15 25.40±0.45 — 5.10±0.20 2.45min — 0.3561 0.0039 32.14 90.23 2899.84 /
Fig.3 Fig.3 Shape group 03 / 05 5 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 RU10×5×20.1 10.00±0.30 5.30±0.25 20.10±0.35 2.20±0.20 4.80±0.30 2.40±0.15 2.40±0.15 — — — — — — RU14×6×26.1 14.00±0.30 6.00±0.20 26.10±0.50 1.20±0.15 6.80±0.30 3.40±0.20 2.80±0.20 — — — — — — RU18.5×9×31 18.50±0.45 9.00±0.30 31.00±0.50 1.80±0.20 11.00±0.30 3.50±0.20 5.50±0.20 — — — — — — RU25×11×31 25.00±0.45 11.00±0.30 31.00±0.50 1.80±0.20 13.00±0.30 6.50±0.20 4.00±0.20 — — — — — — RU29×13.9×33A 29.00±0.50 13.90±0.40 33.00±0.50 1.80±0.20 11.50±0.40 5.75±0.20 4.40±0.20 — — — — — —
Fig.4 Fig.4 Shape group 04 / 05 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 RU15×7.5×28.9 15.00±0.25 7.50±0.15 28.90±0.40 — 6.60±0.30 3.15min — 0.3361 0.0028 39.98 118.97 4756.99 / RU16.5×8.25×28.6 16.50±0.25 8.25±0.15 28.60±0.40 — 9.00±0.30 4.35min — 0.4699 0.0046 48.42 103.02 4987.92 / RU18.6×9.5×28.9 18.60±0.45 9.50±0.25 28.90±0.40 — 10.15±0.30 4.93min — 0.4586 0.0038 55.02 119.96 6600.12 / RU25.9×13.07×29.1 25.90±0.50 13.07±0.15 29.10±0.50 — 12.95+0.40/-0.20 6.38min — 0.4063 0.0022 73.72 181.45 13376.72 /
Fig.5 Fig.5 Shape group 05 / 05 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 RU25.9×13×38.85 25.90±0.50 13.00±0.25 38.85±0.50 — 18.80±0.30 9.25min — 0.7186 0.0059 87.30 121.50 10606.96 /
This table only shows common product numbers. If the RU 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. RU values use the U-pair segment method (as UU; corner radii do not enter the path); F is a minimum, so F×1.15 is used.
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