FPT705-200-R - 200nH Dual Conductor Power Inductor | Eaton
Teilenummer: FPT705-200-R ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $7 | $7,00 |
| 10 | $6.3 | $63,00 |
| 100 | $5.45 | $545,00 |
| 500 | $4.78 | $2.390,00 |
| 1.000 | $4.25 | $4.250,00 |
FPT705-200-R Übersicht
A power inductor is a passive energy-storage component that stores energy in a magnetic field when current flows through its winding and releases that energy when the field collapses. Drum-core wirewound inductors use a ferrite or iron-powder core inside a cylindrical bobbin to achieve high energy density, low DC resistance, and high saturation current in a small footprint. Coupled inductors such as the FPT705-200-R integrate two matched windings on a single core, enabling common-mode noise cancellation and higher ripple-current handling than single-winding equivalents. They sit within the broader passive-component hierarchy: inductor → magnetic component → passive component → electronic component.
Key features of the FPT705-200-R include a 200 nH open-circuit inductance (OCL) measured at 1.0 MHz, 0.1 Vrms with 0.0 Adc bias at +25 °C, very low DCR of 0.65 mΩ (0.75 mΩ per the Eaton SKU page), shielded drum-core construction that minimizes stray magnetic flux, and a dual-conductor two-turn winding topology. The -R suffix confirms RoHS-compliant lead-free terminations, and the device ships on tape-and-reel packaging compatible with standard SMT placement equipment.
Technically, the FPT705 uses a dual-conductor two-turn construction that splits current between two parallel paths, reducing AC winding losses and improving thermal performance under high ripple-current conditions. The ferrite core material provides stable inductance versus DC bias up to the rated I_sat, after which inductance rolls off approximately 2% before entering hard saturation. Low DCR minimizes I²R conduction loss, while the 8.0 x 7.1 x 5.35 mm Flat-Pac footprint supports compact multiphase converter layouts.
Typical applications include point-of-load converters, high-current multiphase buck regulators, server and datacom VRM output filters, and Picor Cool-Power ZVS Buck and Buck-Boost regulator families (PI33xx and PI34xx series). The dual-conductor construction is particularly suited to multiphase designs where per-phase inductance must be tightly matched.
When designing with the FPT705-200-R, derate I_rms for AC ripple current and verify that peak inductor current remains below I_sat under worst-case transient and load-step conditions. A 40 °C temperature-rise rating assumes still air and a specific PCB copper area; larger copper pours extend current capability further.
This page synthesizes Eaton distributor pricing, parametrically compatible drop-in alternatives, and practical PCB-layout notes not found in the standalone datasheet, providing a single reference for engineers evaluating the FPT705-200-R.
Drop-in-Alternativen für FPT705-200-R – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
FPT705-170-R
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
FPT705-250-R
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
FPT705-300-R
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
FPT705-200-R
✅ Drop-In✓ Auf Lager
$4.25 / Stück
Datenblatt ansehen →FPT705-200-R
✅ Drop-In✓ Auf Lager
$4.25 / Stück
Datenblatt ansehen →FPT705-200-R Grenzwerte & elektrische Eigenschaften
| Inductance (OCL) | 200 nH |
| Irms (40 °C rise) | 13 A |
| Isat (approx. 2% rolloff @ +25 °C) | 25 A |
| DC Resistance (DCR) | 0.65 mΩ |
| DCR Test Configuration | Pins (1-2) and pins (4-3) |
| Construction | Dual conductor, two-turn, shielded drum core, wirewound |
| Core Material | Ferrite |
| Gehäuse | Flat-Pac surface mount, 8.0 x 7.1 x 5.35 mm max |
| Anzahl der Pins | 4 |
| Montageart | Surface Mount (SMT) |
| OCL Test Parameters | 1.0 MHz, 0.1 Vrms, 0.0 Adc, +25 °C |
| RoHS Compliance | Yes (-R suffix indicates RoHS compliant) |
| Part Number Definition | FPT705-xxx-R; FPT705 = product code and size; xxx = inductance in nH; -R = RoHS |
FPT705-200-R Pin-Konfiguration
| Pin 1 | Winding A — Winding A terminal 1 (paired with pin 2; DCR tested across 1-2) |
| Pin 2 | Winding A — Winding A terminal 2 (paired with pin 1) |
| Pin 3 | Winding B — Winding B terminal 2 (paired with pin 4; DCR tested across 4-3) |
| Pin 4 | Winding B — Winding B terminal 1 (paired with pin 3) |
Typische Anwendungen
FPT705-200-R ist geeignet für 6 Anwendungs: Picor Cool-Power ZVS Buck Regulator Output Filter, Multiphase VRM Output Inductor, Point-of-Load (POL) Converter Output Filter, High-Current LED Driver Output Inductor, Industrial 48V Bus Point-of-Load Step-Down, Server and Datacenter Power Delivery.
Picor Cool-Power ZVS Buck Regulator Output Filter
The FPT705-200-R is explicitly compatible with Picor Cool-Power ZVS Buck and Buck-Boost regulator families (PI33xx and PI34xx series) per the Eaton FPT705 datasheet. Its 200 nH OCL, 13 A Irms, 25 A Isat, and 0.65 mΩ DCR align with the per-phase inductance and ripple-current requirements of these high-frequency ZVS topologies. The dual-conductor two-turn construction provides tightly matched per-winding inductance, which is critical for multiphase current sharing. Placed between the regulator switching node and the load, the inductor carries the full load current plus high-frequency AC ripple while the low DCR minimizes conduction loss.
Empfohlen
Multiphase VRM Output Inductor
Server and datacom VRMs use multiphase buck topologies to deliver 30-100 A+ at low voltage with fast transient response. The FPT705-200-R's 200 nH inductance per phase, 13 A Irms, and 25 A Isat support multiphase designs at 600-800 kHz switching frequency where per-phase ripple current remains below the Irms rating. The dual-conductor construction enables common-mode flux cancellation, reducing acoustic noise and EMI. Low 0.65 mΩ DCR keeps per-phase conduction loss under 0.1 W at full load, supporting high-efficiency VRM designs that must meet 80+ Titanium efficiency targets in datacenter applications.
Empfohlen
Point-of-Load (POL) Converter Output Filter
Distributed-architecture boards place POL converters near each load to deliver 1-12 V from a 12 V or 48 V intermediate bus. The FPT705-200-R suits POL output filter applications where 200 nH inductance smooths switching ripple at 500 kHz-1 MHz switching frequencies. Its 8.0 x 7.1 x 5.35 mm Flat-Pac footprint fits beneath the converter IC, while the shielded drum core prevents stray flux from coupling into adjacent signal traces. The 25 A Isat headroom accommodates load-step transients without entering saturation, which would otherwise cause output voltage undershoot and degraded transient response.
Empfohlen
High-Current LED Driver Output Inductor
Architectural and automotive LED drivers operating from 12-48 V bus rails use buck or buck-boost topologies to deliver 1-5 A per string. The FPT705-200-R's 200 nH inductance, 13 A Irms, and 25 A Isat support multi-string LED drivers up to 5 A per phase with adequate margin for inrush and PWM dimming transients. The shielded ferrite core minimizes EMI that could otherwise couple into adjacent LED control lines, while the low 0.65 mΩ DCR keeps driver efficiency above 95% at typical load currents. The Flat-Pac SMT footprint supports automated assembly for high-volume lighting production.
Empfohlen
Industrial 48V Bus Point-of-Load Step-Down
Industrial equipment and telecom boards use isolated 48 V intermediate buses feeding distributed POL converters. The FPT705-200-R serves as the output filter inductor in 48 V-to-POL buck converters operating at 600 kHz-1 MHz switching frequency. Its 200 nH OCL at zero bias, stable ferrite core, and 25 A Isat handle high-transient industrial load profiles. The dual-conductor construction supports coupled-inductor topologies for improved light-load efficiency. The Flat-Pac SMT package withstands industrial temperature ranges typical of factory automation and outdoor telecom hardware.
Empfohlen
Server and Datacenter Power Delivery
Hyperscale datacenters require high-efficiency, high-power-density VRM and POL solutions delivering 50-200 A per voltage rail. The FPT705-200-R's 13 A Irms, 25 A Isat, and 0.65 mΩ DCR enable per-phase designs that scale to high aggregate currents via multiphase interleaving. The shielded Flat-Pac 8.0 x 7.1 x 5.35 mm package mounts directly beneath the regulator IC for optimal loop-area minimization, reducing switching-node ringing and EMI. Its compatibility with Picor PI33xx and PI34xx Cool-Power regulator families makes it a known-good inductor for high-volume server VRM designs.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für FPT705-200-R – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | FPT705-170-R | FPT705-250-R | FPT705-300-R | FPT705-200-R (Vicor) | FPT705-200-R (Bussmann) |
|---|---|---|---|---|---|---|
| Package | Flat-Pac 8.0 x 7.1 x 5.35 mm (4-pin SMT) | Flat-Pac 8.0 x 7.1 x 5.35 mm (4-pin SMT) - same | Flat-Pac 8.0 x 7.1 x 5.35 mm (4-pin SMT) - same | Flat-Pac 8.0 x 7.1 x 5.35 mm (4-pin SMT) - same | Flat-Pac 8.0 x 7.1 x 5.35 mm (4-pin SMT) - same | Flat-Pac 8.0 x 7.1 x 5.35 mm (4-pin SMT) - same |
| Brand | Eaton | Eaton | Eaton | Eaton | Vicor | Eaton (Bussmann series) |
| Inductance (OCL) | 200 nH | 170 nH (-15%) | 250 nH (+25%) | 300 nH (+50%) | 200 nH (identical) | 200 nH (identical) |
| Irms (40 °C rise) | 13 A | 13 A (same) | 13 A (same) | 13 A (same) | 13 A (same) | 13 A (same) |
| Isat (2% rolloff) | 25 A | 25 A (same) | 25 A (same) | 25 A (same) | 25 A (same) | 25 A (same) |
| DCR | 0.65 mΩ | 0.65 mΩ (same) | 0.65 mΩ (same) | 0.65 mΩ (same) | 0.65 mΩ (same) | 0.65 mΩ (same) |
| Core Material | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite |
| RoHS Compliance | Yes (-R suffix) | Yes (-R suffix) | Yes (-R suffix) | Yes (-R suffix) | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Dual-conductor two-turn construction in a single Flat-Pac footprint (vs. FPT705-170-R)
- Cross-brand second-source availability through Vicor (vs. FPT705-200-R (Vicor))
- Compatible with Picor Cool-Power ZVS Buck and Buck-Boost regulators (vs. FPT705-200-R (Bussmann))
Designhinweise
The FPT705-200-R Irms rating of 13 A corresponds to an approximate 40 °C temperature rise without core loss in still air. Estimated: at 13 A DC through 0.65 mΩ DCR, I²R conduction loss equals 0.11 W per winding (0.22 W total for the dual-conductor). For continuous operation at full Irms, ensure PCB copper area under the Flat-Pac pads is at least 100 mm² to maintain the rated temperature rise. Larger copper pours (200+ mm²) extend usable current beyond the datasheet Irms figure. AC ripple current requires additional derating per the datasheet instruction 'Derating is necessary for AC currents.'
Place the FPT705-200-R as close to the regulator switching node as PCB routing allows to minimize the high-frequency switching loop area. The 4-pin Flat-Pac land pattern (pins 1-2 form one winding, pins 4-3 form the second) supports either single-phase or coupled-inductor PCB layouts; keep input/output capacitor return paths directly under the inductor pads to minimize parasitic inductance. Use 2 oz or heavier copper on inner and outer layers around the inductor to spread heat and reduce DC-resistance losses.
Do not exceed 25 A peak inductor current, as the FPT705-200-R enters approximately 2% inductance rolloff at this threshold and hard saturation above it - either condition risks regulator instability and output voltage overshoot. Do not assume DCR symmetry across windings without measurement; DCR is tested pins (1-2) and pins (4-3) per datasheet, and mismatched windings degrade multiphase current sharing. For multiphase designs, verify inductance matching across phases to within ±5% to prevent circulating currents.
Compliance-Informationen
RoHS compliance confirmed by -R suffix in part number per Eaton definition. REACH, halogen-free, and conflict-mineral status not stated in available web data.
