LQM21PN4R7MGRD

LQM21PN4R7MGRD is a 4.7 µH ±20% multilayer power inductor from Murata in an 0805 (2012 metric) case — ferrite-shielded, low-DCR line, and Murata's product record lists this part as In Production. The rated current is published in temperature tiers and must be quoted with them: 0.8 A maximum on the temperature-rise basis, holding 0.8 A at +85 °C and derating to 0.6 A at +125 °C; DC resistance 0.288 Ω maximum (0.23 Ω ±25% nominal), self-resonant frequency 30 MHz minimum, dimensions 2.0 x 1.25 x 0.9 mm (±0.15/±0.15/±0.1 mm), operating range −55 °C to +125 °C. The final D is the 180 mm paper-tape reel at 4,000 pieces. The selection point is 4.7 µH in 0805 with a published hot-derating figure — the part for converter rails in enclosures that actually reach their ambient rating. Selection advice: at high ambient the design current is 0.6 A, not 0.8 A; the tier table is part of the rating.