NRS3015T1R0M - 1uH 2.1A Semi-Shielded Power Inductor | Taiyo Yuden
MPN: NRS3015T1R0M β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
NRS3015T1R0M Overview
An SMD power inductor is a passive energy-storage component that stores energy in a magnetic field and releases it to smooth current in switching power converters. Within the component hierarchy it belongs to the fixed inductor family, itself a subcategory of inductors, coils and chokes under passive components. Power inductors are core building blocks of DC-DC converters, where inductance value, saturation current and DCR directly determine converter efficiency, ripple and transient response.
Key features of the NRS3015 series include a semi-shielded drum core wirewound construction that reduces magnetic flux leakage compared with fully open drum designs while retaining wirewound current capability, a low 36 mOhm maximum DCR that minimizes conduction losses, and metallization on the ferrite core which provides excellent shock resistance and damage-free durability. The compact 3015 footprint supports dense converter layouts in portable equipment.
The wirewound construction on a metallized ferrite core yields high saturation current headroom and stable inductance under bias, making the part suitable for buck and boost converter output and energy-transfer roles. The semi-shielded structure lowers coupling to neighboring inductors in multi-phase or multi-rail designs relative to unshielded equivalents.
Typical applications include point-of-load DC-DC converters in mobile phones, tablet and laptop PCs, AV equipment, OA and office equipment, home electric appliances, and general information and communication equipment.
A key design consideration: verify saturation current at your worst-case peak load and ambient temperature, since datasheet ratings are measured under reference conditions and real performance varies with environment.
This page synthesizes distributor data, drop-in alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for NRS3015T1R0M β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
NRS3015T1R0NNGH
β Drop-Inπ Reference alternative (not in catalog)
NRS3015T1R0NNGHV
β Drop-Inπ Reference alternative (not in catalog)
LCXNE3030MKT1R0NN
β Drop-Inπ Reference alternative (not in catalog)
NRS3015T1R0M Maximum Ratings & Electrical Characteristics
| Inductance | 1 uH |
| Tolerance | 20% |
| Rated Current (max) | 2.1 A |
| DC Resistance (max) | 36 mOhm |
| Type | Semi-Shielded Drum Core, Wirewound Power Inductor |
| Core Material | Ferrite (metallized) |
| Elements | 1 |
| Mounting Type | Surface Mount (SMD, CHIP) |
| Package Code | 3015 (3.0 x 3.0 x 1.5 mm), nonstandard |
| Series | NRS3015 (NR Series) |
| Shielding | Semi-Shielded |
| Intended Use | General electronic equipment (AV, OA, home appliances, information and communication equipment) |
NRS3015T1R0M 3015 (3.0 x 3.0 x 1.5 mm), nonstandard Pin Configuration Guide
Pin configuration for NRS3015T1R0M (3015 (3.0 x 3.0 x 1.5 mm), nonstandard package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for NRS3015T1R0M.
Refer to the datasheet for full pin configuration.
Typical Applications
NRS3015T1R0M is suitable for 6 applications: Smartphone / Mobile Device Point-of-Load Buck Converter, Tablet and Laptop PC DC-DC Converters, AV and Home Appliance Power Supplies, IoT Devices and Smart Sensors, Industrial and Office Equipment (OA) Controllers, Networking and Communication Equipment.
Smartphone / Mobile Device Point-of-Load Buck Converter
The NRS3015T1R0M's 1 uH inductance and roughly 2.1 A current rating align directly with typical 1-2 A point-of-load buck converters powering application processors, RF power amplifiers and camera modules in mobile phones. Its compact 3015 (3.0 x 3.0 x 1.5 mm) footprint fits dense handset PCBs, while the semi-shielded drum construction limits magnetic flux leakage into adjacent RF and analog circuitry compared with an open drum core. In circuit, the inductor sits between the converter's switch node and output capacitor, storing and releasing energy each switching cycle; the low 36 mOhm max DCR limits conduction loss and voltage droop, directly improving battery runtime. Select the ripple current (20-40% of load) to trade inductor size against output ripple.
Recommended
Tablet and Laptop PC DC-DC Converters
PC power trees use many medium-current buck converters for SoC cores, memory and I/O rails, and the NRS3015T1R0M is specified by Taiyo Yuden for PC and information/communication equipment. Its metallized ferrite core provides excellent shock resistance and durability, valuable for portable devices subject to drop and vibration. With 1 uH nominal inductance and 36 mOhm max DCR, the part supports efficient multi-megahertz switching frequencies that shrink converter size, while the 2.1 A rating covers typical per-rail loads. Place the inductor close to the converter IC with short, wide traces to minimize switch-node ringing and radiated EMI; verify saturation at worst-case peak load since characteristics vary with temperature and bias.
Recommended
AV and Home Appliance Power Supplies
Taiyo Yuden's spec sheet explicitly lists the NRS series for AV equipment, OA equipment and home electric appliances. In set-top boxes, audio equipment and smart appliances, the NRS3015T1R0M serves as the energy-transfer inductor in low-voltage buck stages deriving 3.3 V, 1.8 V or 1.2 V rails from 5 V or 12 V inputs. The 1 uH value suits switching frequencies of roughly 1-3 MHz at these ratios, and the semi-shielded construction helps meet consumer EMI requirements without a full shield. Because these products run continuously, thermal design matters: Estimated: at 2 A DC load, conduction loss is about 144 mW (I^2 x 36 mOhm), modest but non-negligible in sealed enclosures, so verify temperature rise in the final mechanical stack.
Recommended
IoT Devices and Smart Sensors
Battery-powered IoT nodes and smart sensors need efficient, compact step-down conversion for wireless modules and microcontrollers, and the NRS3015T1R0M fits this role with its small 3.0 x 3.0 x 1.5 mm footprint and low 36 mOhm DCR. Lower DCR directly reduces quiescent-period losses and extends battery life at light-to-medium loads. The semi-shielded drum core reduces coupling into nearby crystal oscillators and antenna matching networks, a common layout hazard in 2.4 GHz designs. In a typical buck stage the inductor value sets ripple current: Estimated: at 3.3 V-to-1.8 V, 2 MHz switching with 1 uH, ripple is roughly 750 mA peak-to-peak, so confirm the 2.1 A rating still holds at your peak load plus half the ripple.
Recommended
Industrial and Office Equipment (OA) Controllers
Office automation equipment such as printers, scanners and networked controllers embed numerous buck converters for logic and motor-assist rails. Taiyo Yuden lists the NRS series for OA equipment and general electronic apparatus, and the NRS3015T1R0M's metallized-core construction provides shock resistance and damage-free durability suited to equipment with motors and moving parts that generate vibration. Its 1 uH inductance and about 2.1 A current capability cover typical auxiliary rails, while the semi-shielded structure contains flux in the crowded boards typical of multifunction devices. Designers should keep the inductor away from sensitive analog sense lines and verify current derating at the elevated internal ambient temperatures of enclosed office hardware.
Recommended
Networking and Communication Equipment
Routers, switches and communication modules use dense arrays of point-of-load converters, and the NRS3015T1R0M is expressly listed by Taiyo Yuden for information and communication equipment including mobile phones and PCs. In these boards, multiple inductors sit side by side; the semi-shielded drum design reduces mutual coupling and beat-frequency interference relative to open drum cores, simplifying multi-rail layout. The 1 uH inductance supports multi-MHz converters feeding PHYs, memories and FPGAs, and the 36 mOhm max DCR limits loss at continuous network-equipment duty cycles. Maintain ground clearance and orient adjacent inductors to minimize flux coupling, and verify saturation behavior at peak traffic-driven load transients.
Recommended
Recommended Products Summary
Engineering reference data for NRS3015T1R0M β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | NRS3015T1R0NNGH | NRS3015T1R0NNGHV | LCXNE3030MKT1R0NN |
|---|---|---|---|---|
| Package | 3015 (3.0 x 3.0 x 1.5 mm), nonstandard | 3015 (3.0 x 3.0 x 1.5 mm) - same | 3015 (3.0 x 3.0 x 1.5 mm) - same | 3030 - verify land pattern |
| Brand | Taiyo Yuden | Taiyo Yuden | Taiyo Yuden | Taiyo Yuden |
| Inductance | 1 uH (20%) | 1 uH | 1 uH | 1 uH |
| Intended Application | General electronic equipment (mobile, PC, AV, OA, appliances) | Same (NR series spec sheet) | Same (NR series spec sheet) | Power Inductors - SMD |
Key Differentiators
- Low conduction loss (vs LCXNE3030MKT1R0NN)
- Flux-leakage control without full-shield cost (vs Open drum core inductors of the same size)
- Mechanical robustness (vs NRS3015T1R0NNGH (equivalent))
Design Notes
Verify saturation current under worst-case conditions. Taiyo Yuden datasheets state that electrical characteristics vary depending on environment or measurement condition, and DC bias reduces effective inductance in ferrite-core parts. Compute peak inductor current as load current plus half the ripple (ripple = (VIN - VOUT) x VOUT / (VIN x fsw x L)) and keep it below the approximately 2.1 A rating with 20% margin. Estimated: at 3.3 V-to-1.8 V, 2 MHz, 1 uH, ripple is about 750 mA p-p, so peak current at 1.5 A load is about 1.9 A.
Minimize switch-node and output loop area. Place the NRS3015T1R0M within a few millimeters of the converter IC's SW pin and the output capacitor, using short, wide traces rated for 2 A+. The semi-shielded construction reduces but does not eliminate external flux, so keep the part away from sensitive analog traces and adjacent inductors should be spaced or oriented to minimize coupling in multi-rail boards. Solid ground plane under the inductor is recommended; avoid splitting the return path beneath the switching loop.
Do not substitute tolerance or termination suffixes blindly. The M suffix encodes the 20% tolerance class; the NRS3015T1R0NNGH and NNGHV are same-series equivalents per DigiKey listings, and Mouser lists LCXNE3030MKT1R0NN as a suggested alternate. Always cross-check footprint, rated current and DCR on the manufacturer spec sheet before BOM substitution, and confirm the latest Taiyo Yuden revision since the manufacturer reserves the right to change data at any time without notice.
Compliance Information
Taiyo Yuden spec sheet lists intended use as general electronic equipment (AV, OA, home appliances, information and communication equipment); specific RoHS/REACH declarations for this MPN were not present in the retrieved data.
