Ferrite inductor B82747S4423N021

ferrous coreferrite corethree-phase

Overview
TDK Electronics power line chokes include a broad portfolio of EMI chokes, current‑compensated chokes, line filters and common‑/differential‑mode chokes for single‑ and three‑phase power systems. The range covers multiple core topologies (ring, D‑core, frame, E‑core, U‑core, I‑core) and SMD variants to meet different current, inductance and voltage requirements.

Product types and topologies

• Current‑compensated ring core chokes (single / double / triple / quad)
• D‑core chokes (current‑compensated)
• Frame core chokes (frame / frame core families)
• Ring core chokes with iron powder core
• I‑core and U‑core chokes
• SMD ring core (SurfIND) chokes
• High‑voltage common‑mode chokes (three‑phase / triple)

Representative series and sample kits (selection)

• Series B82721 (ring core chokes) — sample kit: B82721 Sample Kit
• Series B82722 (ring core chokes) — sample kit: B82722 Sample Kit; also high‑voltage variant B82722V6*B040
• Series B82723 (ring core chokes) — sample kit: B82723 Sample Kit
• Series B82724 / B82724J2*U / B82724J8*N — ring core double chokes and extended voltage versions
• Series B82725 / B82725S2* — ring core double and SMD ring core double chokes
• Series B82726 (ring core double chokes) — high current variants (e.g. B82726S3543, B82726S3223A340)
• Series B82730 (U/core) and B82731 (D/core) — D‑core and I‑core chokes; sample kits B82731X0001
• Series B82732 / B82733 / B82734 (frame / D / frame families) — multiple sample kits available
• Series B82747 / B82748 / B82767 (triple/three‑phase and triple chokes) — example B82747S4423N021 (3 x 1.5 mH, 42 A)
• Series B82791 (NiZn ring core chokes) — example B82791H2*N010 (14 … 100 µH; 1.5 … 4 A)

Datasheets / Documents (selection)
Datasheets, sample kit documents and technical notes are available for each series. Documents typically include product family datasheets, application guidelines (I‑core, ring core, sine‑wave and current‑compensated choke guidance), quality and packaging information, and safety/caution notes.

Representative series / specs (selection)
Design | Inductance (mH) | Rated current (A) | Rated temp (°C) | Rated voltage (V AC) | Rated voltage (V DC) | Lines | Type | Ordering code
Current‑compensated ring core choke (triple) | 1.5 | 42 | 70 | 440 | — | — | Triple | B82747S4423N021
Current‑compensated ring core double choke | 3.3 … 22 | 0.85 … 3.0 | 70 | 630 | 1250 (DC) | — | Double | B82722X0003 (sample kit B82722V6*B040)
D‑core chokes (B82731M) | 3.3 … 100 | 0.35 … 1.8 | 40 | 250 | — | — | Double | B82731H, B82731M
Frame core chokes (B82732F / B82733F) | 10 … 100 | 0.45 … 2.3 | 40 | 300 | 500 (DC) | — | Double | B82732F, B82733F
Ring core chokes high current (B82726 variants) | 0.12 … 3.3 | 10 … 54 | 70 / 75 / 80 | 70 / 85 | 250 / 300 (DC) | — | Double | B82726S* series
NiZn ring core chokes (B82791H2*N010) | 14 … 100 µH | 1.5 … 4 A | 70 | 250 | — | — | Double | B82791H2*N010

Applications / Use cases

• Suppression of common‑mode interference in power networks
• Line filtering and EMI suppression for power supplies, inverters and three‑phase systems
• Meeting leakage current and EMC requirements in electrical and electronic equipment

Documentation and support
General technical information, application notes and sample kits support design validation. SPICE models and reference design materials are available for selected series to assist simulation and integration.

Technical characteristics

• Inductance: approx. 0.0021 mH up to 100 mH depending on series
• Rated current: <0.3 A up to >50 A depending on topology and series (typical 0.25 A … 54 A)
• Rated temperature: typical +40 °C up to +85 °C (many series rated +40/ +60/ +70/ +80/ +85 °C)
• Rated voltage AC: common ratings 250 V AC; other variants 300 V, 440 V, 480/275 V, 500 V, 600 V, 690 V (three‑phase)
• Rated voltage DC: some series up to 1250 V DC for high‑voltage versions
• Number of lines: single, double, triple, quad (including 3‑phase triple chokes)
• Topologies: ring core (ferrite, NiZn), D‑core, frame core, E‑core, I‑core, U‑core, SMD ring core
• Types: common‑mode, differential (sine‑wave) and current‑compensated chokes; high‑current and high‑voltage variants available
• Sample kits and SPICE/model libraries available for design and simulation