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HomeProductsInductors, Coils, ChokesFixed InductorsNRS8030T6R8MJGJ
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NRS8030T6R8MJGJ - Taiyo Yuden

Manufacturer Part Number
NRS8030T6R8MJGJ
Manufacturer
Taiyo Yuden
Allelco Part Number
32D-NRS8030T6R8MJGJ
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
174,960 pcs available, New & Original
Parts Description
FIXED IND 6.8UH 3A 37.7 MOHM SMD
Package
Nonstandard
Data sheet
NRS8030T6R8MJGJ.pdf

PCN Part Status Change

Mult Devs NRND 01/Apr/2023.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 174960
  • Unit Price: $0.161
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
5+ $0.161 $0.81
50+ $0.132 $6.60
150+ $0.12 $18.00
1000+ $0.10 $100.00
2000+ $0.093 $186.00
5000+ $0.089 $445.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

NRS8030T6R8MJGJ Tech Specifications
Taiyo Yuden - NRS8030T6R8MJGJ technical specifications, attributes, parameters and parts with similar specifications to Taiyo Yuden - NRS8030T6R8MJGJ

Product Attribute Attribute Value
Manufacturer Taiyo Yuden
Type Drum Core, Wirewound
Tolerance ±20%
Supplier Device Package -
Size / Dimension 0.315" L x 0.315" W (8.00mm x 8.00mm)
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 6.8 µH
Height - Seated (Max) 0.118" (3.00mm)
Frequency - Self Resonant 32MHz
DC Resistance (DCR) 37.7mOhm Max
Current Rating (Amps) 3 A
Current - Saturation (Isat) 3A

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 applications are best suited for the NRS8030T6R8MJGJ 6.8µH inductor, and how does its 3A current rating compare to typical buck converter requirements?
The NRS8030T6R8MJGJ is optimized for low-to-mid-power DC-DC converter output filtering, particularly in 5V/12V buck topologies where output inductance values fall between 4.7µH and 10µH. At 3A saturation current, the NRS8030T6R8MJGJ suits applications with peak load currents below 2.5A (derating to 83% of Isat for reliability margin), making it practical for USB PD adapters, LED drivers, and IoT gateway power supplies rather than high-current server rails. The 6.8µH inductance paired with 3A rating positions the NRS8030T6R8MJGJ in the mid-range of Taiyo Yuden's NR series, trading current capacity for reduced core loss compared to 10µH variants, while maintaining thermal stability across the -25°C to 125°C operating band.
How does the 37.7mOhm DCR of the NRS8030T6R8MJGJ affect efficiency in continuous-mode buck converters, and at what load current does DCR loss dominate over switching losses?
The NRS8030T6R8MJGJ exhibits a DC resistance of 37.7mOhm maximum, which generates I²R losses of approximately 337mW at the full 3A rating (9W dissipation)—a substantial thermal load in compact designs. In a 5V/1A converter topology, DCR loss in the NRS8030T6R8MJGJ amounts to ~37.7mW, representing roughly 0.75% of total output power and remaining secondary to switching losses. However, at 2.5A sustained load, DCR loss rises to ~234mW, becoming comparable to gate-drive losses in modern 200kHz switching schemes. For applications below 1.5A, the NRS8030T6R8MJGJ's DCR contribution remains manageable, but thermal design must account for inductor self-heating in confined PCB layouts, particularly when ambient temperature approaches 80°C.
Why does the NRS8030T6R8MJGJ specify a self-resonant frequency of 32MHz, and what design margin should be maintained between the converter switching frequency and this SRF?
The NRS8030T6R8MJGJ's 32MHz SRF emerges from the parallel capacitance formed by inter-winding coupling and the package parasitics of the 8.00mm × 8.00mm shielded drum core. At switching frequencies below 8MHz, the NRS8030T6R8MJGJ operates well within its inductive region with negligible reactance transformation. However, above 16MHz (50% of SRF), impedance flatness degrades and the inductor transitions toward capacitive behavior, causing control loop instability and harmonic resonance. For hard-switched converters at 500kHz–1MHz, the NRS8030T6R8MJGJ maintains adequate separation margin; for resonant topologies or multi-phase interleaved designs, the 32MHz SRF of the NRS8030T6R8MJGJ establishes a design ceiling and requires ESR damping consideration above 5MHz operation.
How does the NRS8030T6R8MJGJ's ±20% inductance tolerance affect filtering performance and output voltage ripple prediction in ripple-limited designs?
The NRS8030T6R8MJGJ carries a ±20% inductance tolerance, implying that actual inductance may range from 5.44µH to 8.16µH in production lots. This tolerance band directly impacts output voltage ripple magnitude: in a buck converter where ΔV_out = (V_in × D) / (L × f), a 5.44µH NRS8030T6R8MJGJ inductor produces ~50% higher ripple than a nominal 6.8µH value. Designers compensating for this spread typically specify minimum inductance of 5.44µH when calculating capacitor values, then use the NRS8030T6R8MJGJ in worst-case ripple budgets (assuming lower bound). Alternatively, if output ripple is constrained to ±50mV at 1MHz switching with 12V input, the NRS8030T6R8MJGJ's tolerance band necessitates output capacitance of at least 2.2µF (×5 ceramic paralleling) rather than a single 10µF part, raising BOM cost and PCB area.
Is the NRS8030T6R8MJGJ suitable as a direct replacement for the LSXNH8080XKL6R8MJG substitute listed in datasheets, and what electrical or thermal differences should be evaluated?
The NRS8030T6R8MJGJ and LSXNH8080XKL6R8MJG substitute share identical electrical specifications (6.8µH, 3A, 37.7mOhm, 8.00mm×8.00mm), but Taiyo Yuden's NRS8030T6R8MJGJ employs a proprietary shielded drum-core topology optimized for EMI suppression in dense converter layouts, while the LSXNH variant may use different core material or construction. Direct substitution is generally feasible for DC-DC filtering roles, though thermal performance under sustained 2.5A+ loading may diverge due to core-loss variations. The NRS8030T6R8MJGJ's rated -25°C to 125°C range aligns with industrial standards, but thermal runaway behavior in confined cavities or solder-reflow proximity can differ between manufacturers. Empirical validation via thermal imaging or a prototype thermal chamber test is advised before high-volume production qualification of the NRS8030T6R8MJGJ versus the substitute in temperature-marginal applications (automotive, industrial control cabinets).
What is the moisture sensitivity classification of the NRS8030T6R8MJGJ, and does MSL-1 rating eliminate the need for dry-pack storage or bake-out procedures?
The NRS8030T6R8MJGJ carries an MSL (Moisture Sensitivity Level) classification of 1, indicating unlimited shelf life without humidity or bake-out constraints at standard warehouse conditions (23°C ± 5°C, ≤ 85% RH). MSL-1 status means the NRS8030T6R8MJGJ absorbs negligible moisture during the manufacturing hold-time window and presents no risk of solder-joint popcorning or delamination during reflow. This eliminates pre-reflow baking for the NRS8030T6R8MJGJ, reducing process complexity and cost compared to MSL-2A/2B components. However, extended storage in high-humidity environments (>95% RH, > 40°C) may compromise solder-pad wettability over years, so the NRS8030T6R8MJGJ should still be stored in sealed packaging with desiccant in tropical climates or uncontrolled warehouses to preserve PCB assembly yield.
How does the NRS8030T6R8MJGJ's ferrite drum-core design compare to air-core or toroidal alternatives for EMI radiation in mixed-signal board layouts?
The NRS8030T6R8MJGJ features a ferrite shielded drum core, which confines magnetic field lines within the core structure and reduces magnetic leakage to adjacent board traces compared to unshielded or air-core designs. In a densely populated power-distribution environment, the NRS8030T6R8MJGJ's shielding mitigates coupling into sensitive analog/RF circuits positioned within 50mm of the inductor. Toroidal inductors provide superior field containment but occupy 2–3× the board footprint; the NRS8030T6R8MJGJ's compact 8mm × 8mm × 3mm profile trades some EMI benefit for space efficiency. Conversely, air-core inductors of equivalent inductance exhibit significant field radiation, requiring 100mm+ trace-spacing buffers from high-impedance nodes. For 6.8µH applications in consumer IoT devices where board real estate is premium, the NRS8030T6R8MJGJ delivers practical EMI suppression; for automotive or industrial EMC-critical designs, toroidal alternatives to the NRS8030T6R8MJGJ may be warranted despite footprint penalties.
What thermal management techniques minimize inductor temperature rise when operating the NRS8030T6R8MJGJ at sustained 2.5A in an 80°C ambient environment?
At 2.5A continuous (83% of the NRS8030T6R8MJGJ's 3A saturation rating), I²R losses reach ~235mW, plus core losses (~50–100mW depending on switching frequency and flux density). In an 80°C ambient, the NRS8030T6R8MJGJ's temperature will exceed 125°C without thermal mitigation, risking permeability shift and inductance drift. Practical strategies include: (1) mounting the NRS8030T6R8MJGJ on a ground-plane layer with 2oz copper thickness to distribute heat; (2) routing PWM switching signals away from the inductor and using ferrite beads on adjacent traces to reduce high-dI/dt coupling; (3) applying thermal epoxy (K ~3 W/mK) under the NRS8030T6R8MJGJ die or embedding it in a ceramic thermal pad; (4) increasing converter switching frequency to 2–5MHz to reduce core loss, though this narrows the NRS8030T6R8MJGJ's impedance margin to the 32MHz SRF. For designs near thermal limits, parallel-connecting two NRS8030T6R8MJGJ units at 3.4µH each (halving current per inductor and quadrupling total thermal mass) is a common board-level solution.
Does the NRS8030T6R8MJGJ meet automotive-grade qualification standards, and what reliability data should be reviewed before design-in to ISO 16750 or AEC-Q200 applications?
The NRS8030T6R8MJGJ is not explicitly marketed as AEC-Q200 qualified or automotive-grade in published specifications. While the component meets RoHS3 and REACH compliance, automotive customers should request Taiyo Yuden's full reliability dossier, including: thermal cycling (-40°C to 125°C), vibration endurance (IEC 60068-2-6), salt-spray corrosion testing, and HTOL (high-temperature operating life) data for the NRS8030T6R8MJGJ under rated 3A load. Many industrial suppliers market ferrite inductors as automotive-suitable without formal AEC certification; the NRS8030T6R8MJGJ's operating temperature band (-25°C to 125°C) does not extend to the -40°C automotive lower limit, and solder-joint fatigue over extended thermal cycles may not be validated. For ISO 16750-3 (electrical/electronic component reliability) or ISO 26262 (functional safety) applications, confirm with Taiyo Yuden that the NRS8030T6R8MJGJ carries formal automotive qualification documentation; if unavailable, upgrade to an explicitly AEC-Q200 alternative or proceed with design risk acknowledgment.
At what switching frequency does the NRS8030T6R8MJGJ core loss become comparable to copper loss, and how should this crossover affect converter topology selection?
For the NRS8030T6R8MJGJ at 2A DC+AC current (ripple), copper loss (I²R) is approximately 150mW. Ferrite core loss in the NRS8030T6R8MJGJ scales approximately as f^1.6 × B^2.5, where f is switching frequency and B is flux density. At 1MHz switching with ΔI = 0.6A ripple (typical for 6.8µH at 12V input, 50% duty cycle), core loss in the NRS8030T6R8MJGJ rises to ~80–120mW, remaining below copper loss. However, at 3MHz+ switching with high-frequency PWM ripple, core loss dominates and can exceed 200mW. This crossover suggests that if thermal budget is constrained, lower switching frequencies (500kHz–1MHz) favor the NRS8030T6R8MJGJ for continuous applications, whereas soft-switched or resonant topologies operating above 2MHz demand lower-inductance alternatives or multiple NRS8030T6R8MJGJ units in parallel to distribute core heating. For adaptive/multi-mode converters that transition between 100kHz standby and 2MHz boost modes, the NRS8030T6R8MJGJ remains practical, but active junction-temperature monitoring or thermal shutdown logic becomes advisable.
How does the NRS8030T6R8MJGJ's inductance value compare to competing 6.8µH products in the same footprint, and what trade-offs exist between inductance tolerance and DCR?
Within the 8mm×8mm surface-mount inductor class, competing 6.8µH options (Murata LQM, Vishay IHLP, Coilcraft XGL) span inductance tolerances from ±10% to ±20% and DCR values from 25mOhm to 50mOhm. The NRS8030T6R8MJGJ occupies the mid-range with ±20% tolerance and 37.7mOhm maximum DCR. A competitor with ±10% tolerance typically exhibits higher DCR (45–55mOhm) due to additional winding turns or wire gauge optimization for tighter inductance control; the NRS8030T6R8MJGJ trades tolerance width for lower resistance and better efficiency at full 3A rating. Conversely, ultra-low-DCR variants (20–25mOhm) often sacrifice inductance stability and exhibit higher core loss. For ripple-critical designs where inductance tolerance dominates EMI performance, ±10% inductors may justify higher losses; for thermal-constrained applications prioritizing efficiency, the NRS8030T6R8MJGJ's balance of moderate tolerance and low resistance is preferable. Prototype testing with mixed-tolerance lots of the NRS8030T6R8MJGJ validates actual performance before committing to production volumes.
What is the expected lifespan and degradation mode of the NRS8030T6R8MJGJ under continuous rated current, and are there published MTBF or HTOL end-of-life criteria?
Taiyo Yuden does not publish explicit MTBF values or end-of-life thresholds for the NRS8030T6R8MJGJ in commercial datasheets. Ferrite inductor degradation typically manifests as permeability loss (inductance drift) over 5,000–15,000 HTOL hours at rated current and elevated temperature, with the NRS8030T6R8MJGJ expected to remain within ±10% of nominal inductance through normal operating life (10+ years in stationary applications). Failure mechanisms include core cracking from thermal stress cycles, solder-joint fatigue at the lead interface, and copper wire migration at high current density. The NRS8030T6R8MJGJ is not subject to catastrophic open-circuit failure typical of thin-film resistors; instead, gradual inductance and Q degradation occur over extended field life. For mission-critical applications (aerospace, medical), request full HTOL test reports from Taiyo Yuden; for consumer/IoT use, the NRS8030T6R8MJGJ's inherent robustness as a wirewound ferrite component typically ensures 10-year field reliability without design margin penalty.

Parts with Similar Specifications

The three parts on the right have similar specifications to Taiyo Yuden NRS8030T6R8MJGJ

Product Attribute NRS8030T6R8MJGJV NRS8030T4R7MJGJ NRS8030T4R7MJGJV NRS8030T3R3MJGJ
Part Number NRS8030T6R8MJGJV NRS8030T4R7MJGJ NRS8030T4R7MJGJV NRS8030T3R3MJGJ
Manufacturer Taiyo Yuden Taiyo Yuden Taiyo Yuden Taiyo Yuden
Current - Saturation (Isat) - - - -
Height - Seated (Max) - - - -
Shielding - - - -
DC Resistance (DCR) - - - -
Q @ Freq - - - -
Size / Dimension - - - -
Inductance Frequency - Test - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Frequency - Self Resonant - - - -
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Current Rating (Amps) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Material - Core - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Type - - - -
Ratings - - - -
Inductance - - - -
Tolerance - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

NRS8030T6R8MJGJ Datasheet PDF

Download NRS8030T6R8MJGJ pdf datasheets and Taiyo Yuden documentation for NRS8030T6R8MJGJ - Taiyo Yuden.

Datasheets
NR(H,S,V) Series Catalog.pdf NRS8030T6R8MJGJ Spec Sheet.pdf
PCN Part Status Change
Mult Devs NRND 01/Apr/2023.pdf
PCN Part Number
Mult Devs Part Number 23/Sep/2022.pdf
HTML Datasheet
NR(H,S,V) Series Catalog.pdf

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NRS8030T6R8MJGJ Image

NRS8030T6R8MJGJ

Taiyo Yuden
32D-NRS8030T6R8MJGJ

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