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NRS5014T2R2NMGG - Taiyo Yuden

Name: Taiyo Yuden NRS5014T2R2NMGG
Brand: Taiyo Yuden
SKU: NRS5014T2R2NMGG
Price: 0.103 USD
Availability: InStock
Rating: 5 (5 reviews)

Manufacturer Part Number: NRS5014T2R2NMGG

Manufacturer: Taiyo Yuden

Allelco Part Number: 32D-NRS5014T2R2NMGG

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 163,700 pcs available, New & Original

Parts Description: FIXED IND 2.2UH 2A 78 MOHM SMD

Package: Nonstandard

Data sheet: NRS5014T2R2NMGG.pdf

Datasheets
NRS5014T2R2NMGG Spec Sheet.pdf

HTML Datasheet
NR(H,S,V) Series Catalog.pdf

RoHs Status: ROHS3 Compliant

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Specifications

NRS5014T2R2NMGG Tech Specifications
Taiyo Yuden - NRS5014T2R2NMGG technical specifications, attributes, parameters and parts with similar specifications to Taiyo Yuden - NRS5014T2R2NMGG

Product Attribute	Attribute Value
Manufacturer	Taiyo Yuden
Type	Drum Core, Wirewound
Tolerance	±30%
Supplier Device Package	-
Size / Dimension	0.197' L x 0.197' W (5.00mm x 5.00mm)
Shielding	Shielded
Series	NR, S Type
Ratings	-
Q @ Freq	-
Package / Case	Nonstandard
Package	Tape & Reel (TR)

Product Attribute	Attribute Value
Operating Temperature	-25°C ~ 125°C
Mounting Type	Surface Mount
Material - Core	Ferrite
Inductance Frequency - Test	100 kHz
Inductance	2.2 µH
Height - Seated (Max)	0.055' (1.40mm)
Frequency - Self Resonant	56MHz
DC Resistance (DCR)	78mOhm Max
Current Rating (Amps)	2 A
Current - Saturation (Isat)	2.8A

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99
HTSUS	8504.50.4000

Frequently Asked Questions(FAQ)

What are the thermal and saturation considerations when selecting the NRS5014T2R2NMGG for 2A continuous current applications?: The NRS5014T2R2NMGG is rated for 2A continuous current with a saturation current (Isat) of 2.8A, establishing a 0.8A margin before inductance begins to degrade. This 40% headroom is typical for drum core designs but requires careful thermal management since the 78mOhm DCR dissipates approximately 312mW at rated current. In switching regulators or filtering circuits operating near 2A, transient current spikes above 2.8A will cause temporary inductance loss; designers should verify that peak currents during fault conditions or startup remain below saturation to prevent output voltage regulation failure. Temperature rise in the inductor itself adds to ambient operating range, particularly in compact layouts where the NRS5014T2R2NMGG occupies a 5.00mm × 5.00mm footprint with limited thermal spreading.

How does the 78mOhm DCR of the NRS5014T2R2NMGG affect efficiency in buck converter and power delivery designs?: At 2A, the NRS5014T2R2NMGG dissipates 312mW due to its 78mOhm maximum DCR, which represents a 1.2–1.5% efficiency loss in typical 24V or 12V buck converter topologies depending on output voltage. Lower-inductance designs (sub-1µH) often exhibit DCR values below 50mOhm, so the NRS5014T2R2NMGG's resistance is higher than competitive micro-inductors. However, the 2.2µH value is chosen for specific filtering or step-down ratios; if a designer switches to lower inductance to reduce DCR, they accept higher current ripple and output voltage noise. In power delivery modules or distributed power architectures where the NRS5014T2R2NMGG operates as a secondary-side filter, the thermal budget is often shared with other components; cumulative DCR losses across multiple inductors can drive thermal design constraints.

Why does the NRS5014T2R2NMGG specify a self-resonant frequency (SRF) of 56MHz, and what are the practical limits for EMI filtering above this frequency?: The NRS5014T2R2NMGG's self-resonant frequency of 56MHz is determined by parasitic capacitance in the winding structure of the drum core design. Above 56MHz, the device transitions from inductive to capacitive behavior; placing the NRS5014T2R2NMGG in an EMI filter path above 56MHz will attenuate high-frequency noise less effectively and may introduce resonance peaks that amplify certain frequency bands. This SRF is typical for 2.2µH shielded inductors in the 5×5mm package class. In filtering applications targeting MHz-range switching noise (such as Class D audio amplifiers or high-frequency SMPS designs), designers should confirm that the dominant noise frequencies remain well below 56MHz; if the switching frequency approaches or exceeds 40MHz, alternative inductor geometries with higher SRF values (ferrite rod or thin-film topologies) should be evaluated to maintain predictable filter behavior with the NRS5014T2R2NMGG.

What is the ±30% tolerance implication when using the NRS5014T2R2NMGG in precision resonant tank or LC filter circuits?: The NRS5014T2R2NMGG carries a ±30% inductance tolerance, meaning actual values can range from 1.54µH to 2.86µH. In resonant LC tank circuits where the resonant frequency is defined as f = 1/(2π√LC), a ±30% variation in inductance (or capacitance) produces approximately ±15% frequency drift, assuming the capacitor tolerance is tighter. For Class D amplifiers, wireless power transfer coils, or precision LC filters operating at fixed frequencies, this tolerance may require tuning capacitors with corresponding tighter tolerances (±5% or better) to compensate. In applications where the NRS5014T2R2NMGG is used for current limiting or general filtering with moderate bandwidth (such as switched-mode power supplies), the tolerance is usually acceptable because the control loop compensates for inductor value variations. Design margins should account for the worst-case 2.86µH scenario; simulations run with both upper and lower tolerance extremes help verify stable operation across production batches.

How does the shielded drum core construction of the NRS5014T2R2NMGG reduce EMI compared to unshielded inductors, and where is shielding most effective?: The NRS5014T2R2NMGG employs a shielded drum core design that confines the magnetic field near the ferrite material and reduces radiated emissions compared to unshielded air-core or semi-shielded designs. Shielding is most effective at reducing near-field magnetic coupling to adjacent traces and components on the PCB; the NRS5014T2R2NMGG is particularly beneficial in mixed-signal boards where switching currents in power supplies could induce noise on analog signal paths. The shield effectiveness is typically 20–40dB above 10MHz, depending on shield material and gap geometry. However, shielding also increases parasitic capacitance and can lower the self-resonant frequency; at 56MHz, the NRS5014T2R2NMGG's SRF reflects this trade-off. In high-density layouts where the NRS5014T2R2NMGG is positioned near sensitive RF or analog circuits, the shielding provides tangible EMI reduction; in isolated power sections, unshielded inductors with lower DCR might be preferred. Return path management and ground plane proximity remain critical; the shield effectiveness of the NRS5014T2R2NMGG is fully realized only when the inductor is mounted on a continuous ground plane or with short return paths.

What are the differences in performance between the NRS5014T2R2NMGG and comparable 2.2µH inductors from other manufacturers in terms of saturation current margin and thermal behavior?: The NRS5014T2R2NMGG (Taiyo Yuden, 2A rated, 2.8A Isat, 78mOhm DCR) exhibits a relatively tight saturation margin (0.8A headroom) compared to some competing designs that offer 3.2A or 3.5A saturation ratings for the same 2.2µH value and 2A current rating. Competitors may achieve higher Isat by using lower-permeability ferrite cores or larger form factors; the NRS5014T2R2NMGG's compact 5×5×1.4mm height prioritizes density over saturation margin. DCR varies significantly: some manufacturers achieve 60–70mOhm at 2.2µH and 2A, while others reach 90–100mOhm. The NRS5014T2R2NMGG at 78mOhm is mid-range. Thermal behavior depends on core material properties and wire gauge; Taiyo Yuden's drum core design is optimized for stable inductance over temperature (within ±30% tolerance), but users requiring tighter inductance stability or lower saturation sensitivity should cross-reference datasheets for alternative geometries. In practical design-ins, the choice between the NRS5014T2R2NMGG and competitors often comes down to availability, cost, and whether the 78mOhm DCR and 2.8A Isat align with the specific application's thermal and ripple current budgets.

Is the NRS5014T2R2NMGG suitable for input filtering in boost converters operating from low-source voltages, and what precautions apply?: The NRS5014T2R2NMGG can serve as an input filter inductor in boost converters, but several design considerations apply. In a boost converter, the input-side inductor experiences continuous current ripple; at 2.2µH, the ripple current (ΔI = Vin·Ton / L) scales with input voltage and duty cycle. At low input voltages (below 5V), even modest switching frequencies (500kHz) can produce ripple currents exceeding 1A peak-to-peak, pushing the NRS5014T2R2NMGG closer to its 2.8A saturation limit during transient load steps. The 78mOhm DCR also causes input voltage sensing errors in converters using direct output feedback; if the boost converter relies on input current sampling, the NRS5014T2R2NMGG's resistance introduces voltage drops that must be compensated in the feedback network. Boost converters also exhibit higher di/dt on input transients compared to buck topologies, stressing the inductor's saturation margin; the NRS5014T2R2NMGG is acceptable for modest boost ratios (2:1 to 3:1) but less ideal for extreme step-up applications where larger saturation margins are prudent. Thermal runaway risk is elevated because boost input current is continuous, unlike buck output current which is discontinuous at light loads.

How do moisture sensitivity (MSL 1) and RoHS3 compliance of the NRS5014T2R2NMGG affect supply chain and assembly logistics?: The NRS5014T2R2NMGG carries MSL 1 (Moisture Sensitivity Level 1), indicating unlimited shelf life with no bake-out requirement before reflow soldering. This is the most benign MSL rating and eliminates moisture-related field failures and assembly process constraints; the NRS5014T2R2NMGG can be stored in standard warehousing without desiccant packs or time-locked humidity cabinets. RoHS3 compliance (including heavy metals restriction) confirms the NRS5014T2R2NMGG is compliant with EU Directive 2011/65/EU and updates, reducing regulatory burden in European and many Asian markets. From a supply chain perspective, MSL 1 and RoHS3 compliance on the NRS5014T2R2NMGG simplifies inventory management and reduces the risk of expired components or non-compliant stock. REACH Unaffected status further confirms no supply-chain restrictions. In contrast, higher MSL ratings (3, 4, or 5) impose bake-out schedules and storage costs; the NRS5014T2R2NMGG's MSL 1 designation is a practical advantage for high-volume manufacturing or just-in-time supply chains where rapid component throughput is essential.

Why is the inductance test frequency specified at 100kHz for the NRS5014T2R2NMGG, and how does actual inductance vary across different operating frequencies?: The NRS5014T2R2NMGG specifies inductance (2.2µH) at a test frequency of 100kHz, which is a standard midpoint reference for ferrite inductors. At 100kHz, ferrite cores exhibit minimal frequency-dependent permeability variation for drum core designs; this frequency represents a practical balance between low-frequency accuracy and high-frequency behavior prediction. However, the actual inductance of the NRS5014T2R2NMGG varies across frequencies due to core material dispersion and skin effects in the winding. At lower frequencies (10kHz), inductance typically increases by 2–5% as core permeability peaks. At higher frequencies approaching the self-resonant frequency (56MHz), inductance rolls off due to parasitic capacitance; above 30MHz, the NRS5014T2R2NMGG's inductance begins to degrade noticeably. For applications operating at switching frequencies far from 100kHz (such as 20kHz rectifiers or 500kHz buck converters), designers should reference frequency-dependent inductance curves from Taiyo Yuden if precision design is required. In practice, the 100kHz specification provides a reliable nominal value for most SMPS and filtering applications; the ±30% tolerance of the NRS5014T2R2NMGG already encompasses typical frequency-dependent variations.

What PCB layout best practices should be applied when mounting the NRS5014T2R2NMGG to minimize parasitic inductance and maximize thermal dissipation?: The NRS5014T2R2NMGG, being 5×5×1.4mm, has minimal lead inductance due to its compact footprint and short traces to pads; however, PCB layout quality significantly impacts overall circuit performance. To minimize parasitic inductance: (1) place the NRS5014T2R2NMGG close to switching nodes or output capacitors to reduce loop areas; (2) use wide, short traces for current paths; (3) employ multiple stitching vias connecting the ground pad beneath the NRS5014T2R2NMGG directly to a continuous ground plane, reducing loop inductance on return paths. For thermal dissipation, the 78mOhm DCR and 312mW loss at 2A require adequate copper area; thermal vias beneath the NRS5014T2R2NMGG pad should connect to internal copper planes or a thermal sub-plane to distribute heat away from the component. In dense layouts, a small solder mask opening above the NRS5014T2R2NMGG and direct thermal via stitching can reduce junction temperature by 10–15°C compared to standard via patterns. The shielded drum core of the NRS5014T2R2NMGG benefits from placement on a ground plane immediately beneath; any air gaps reduce shielding effectiveness. During design review, crosstalk analysis tools should confirm that switching currents through the NRS5014T2R2NMGG do not couple into nearby analog traces, taking advantage of the shielding but not relying on it exclusively.

How should the ±30% inductance tolerance of the NRS5014T2R2NMGG be managed in volume production to ensure consistent output voltage regulation?: Production tolerances on the NRS5014T2R2NMGG (±30%) translate directly into variations in switching-mode power supply output voltage ripple, loop bandwidth, and transient response. In volume production, the typical approach is to close the output voltage regulation loop through a feedback voltage divider and PWM controller; the control loop compensates for inductor value variations as long as the inductor remains within the ±30% window. However, worst-case analysis must verify stability and noise performance at both the upper (2.86µH) and lower (1.54µH) tolerance extremes of the NRS5014T2R2NMGG. At 2.86µH, output voltage ripple decreases and loop phase margin increases (beneficial, but may reduce response speed). At 1.54µH, ripple increases and loop bandwidth shifts; high-current transient response accelerates but ringing may increase if the controller was tuned for the nominal 2.2µH value. Best practice involves: (1) designing the feedback network and compensation with nominal inductance (2.2µH) but with 15–20% control loop phase margin headroom; (2) performing SPICE simulations across the ±30% band; (3) if available, measuring a statistical sample of incoming NRS5014T2R2NMGG units to confirm measured inductance distribution and adjust component qualification limits if tighter tolerance is needed for the application.

In what applications is the NRS5014T2R2NMGG preferred over alternative inductor technologies (film, air-core, or thin-film), and what are the trade-offs?: The NRS5014T2R2NMGG (ferrite drum core, 2.2µH, shielded, 2A, compact 5×5mm) is optimal for applications requiring moderate current filtering, EMI suppression, and space efficiency. Compared to air-core inductors (typically larger and unshielded), the NRS5014T2R2NMGG offers superior EMI confinement and smaller footprint; air-cores require 3–4x larger space for equivalent inductance. Thin-film inductors (planar geometry on silicon or ceramic) compete in footprint but exhibit lower saturation currents (often <1A) and higher DCR; the NRS5014T2R2NMGG's 2A rating and 78mOhm DCR favor higher-current designs. Ferrite rods or larger drum cores offer higher saturation margins (3.5A+) and lower DCR, but at increased size and cost; the NRS5014T2R2NMGG balances these trade-offs for mid-range current applications. Film inductors are niche (low-loss, high Q at specific frequencies) and uncommon in SMPS designs. The NRS5014T2R2NMGG is the default choice for buck converter output filters, input EMI filters, and distributed power modules in the 2–5A range; selection of alternative technologies typically indicates specialized requirements (ultra-low DCR for >10A, high-frequency resonance, or space-constrained sub-0.5A circuits) that the NRS5014T2R2NMGG cannot address.

What is the expected reliability and failure mode distribution of the NRS5014T2R2NMGG over a 10-year operating lifetime?: The NRS5014T2R2NMGG, as a passive ferrite inductor with no active elements, exhibits very high reliability under rated conditions (2A continuous, –25°C to 125°C). Primary failure modes are: (1) wire fracture due to mechanical vibration or thermal cycling (rare in SMD designs with short lead lengths); (2) core delamination if moisture ingress occurs (eliminated by MSL 1 status and conformal coating); (3) solder joint fatigue in high-vibration environments (mitigated by compact footprint and reflow soldering). Ferrite materials themselves are stable; inductive value drift over 10 years is typically <5% in commercial-grade inductors like the NRS5014T2R2NMGG, well within the ±30% tolerance. Operating at or near saturation (2.8A continuous) accelerates core heating and may reduce reliability; maintaining actual current below 1.8A extends expected lifetime significantly. Under normal SMPS operating conditions (1.5A average, occasional 2A peaks), the NRS5014T2R2NMGG is expected to exceed 100,000 hours MTBF. Thermal management is the dominant lifetime factor; elevated temperatures (>100°C junction) on the NRS5014T2R2NMGG can reduce dielectric strength of the wire insulation over extended periods. Taiyo Yuden provides qualification data confirming the NRS5014T2R2NMGG meets AEC-Q200 or similar automotive/industrial reliability standards; in consumer applications with standard environmental conditions, field failure rates of the NRS5014T2R2NMGG are typically <0.5% per 1000 operating hours.

Parts with Similar Specifications

The three parts on the right have similar specifications to Taiyo Yuden NRS5014T2R2NMGG

Product Attribute
Part Number	NRS5014T2R2NMGGV	NRS5014T1R2NMGGV	NRS5014T1R2NMGG	NRS5014TR47NMGG
Manufacturer	Taiyo Yuden	Taiyo Yuden	Taiyo Yuden	Taiyo Yuden
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Inductance Frequency - Test	-	-	-	-
Current Rating (Amps)	-	-	-	-
Frequency - Self Resonant	-	-	-	-
DC Resistance (DCR)	-	-	-	-
Inductance	-	-	-	-
Type	-	-	-	-
Current - Saturation (Isat)	-	-	-	-
Size / Dimension	-	-	-	-
Ratings	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Shielding	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Material - Core	-	-	-	-
Height - Seated (Max)	-	-	-	-
Tolerance	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Series	-	-	-	-
Q @ Freq	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C

NRS5014T2R2NMGG Datasheet PDF

Download NRS5014T2R2NMGG pdf datasheets and Taiyo Yuden documentation for NRS5014T2R2NMGG - Taiyo Yuden.

Datasheets: NRS5014T2R2NMGG Spec Sheet.pdf
HTML Datasheet: NR(H,S,V) Series Catalog.pdf

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