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100 nH Inductor 0603 - Murata LQM18JNR10J00D

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0603 Chip Inductor · 100 nH ±5% · 650 mA

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John Lauer Pads: square corners, as the datasheet draws them (no added rounding); viewers, lbr, insertion GLB, hero rebuilt from t… a9df093 17d ago

100 nH Inductor 0603 - Murata LQM18JNR10J00D

Murata LQM18JNR10J00D: 0603 Chip Inductor, 100 nH ±5%, 650 mA. An Adom Basic Part: Adom keeps it on reels for its pick-and-place line, so boards built with it draw on Adom stock.

Key specs

Spec Datasheet
0603 chip coil (chip inductor), LQM18JN series for consumer & industrial equipment, 1.6 × 0.8 mm body, only 0.55 mm tall, 0.004 g p.1, p.2
100 nH ±5%, inductance measured at 25 MHz (Keysight 4294A, 1 mA) p.1, p.2
Q 8 min, also specified at the 25 MHz test frequency p.1, p.2
DC resistance 0.41 Ω ±25% p.1
Self-resonant frequency 200 MHz min (Keysight 4991A, 1 mA) p.1, p.2
Rated current 650 mA on a temperature-rise basis, self-heating limited to 40 °C max p.1, p.2
Operating and storage range −40 to +85 °C p.1
Polarity mark printed on the top face (0.32 mm square) p.2
Inductance can shift in magnetic fields, no magnetised tweezers, and currents above rating risk magnetic saturation p.9
8 mm paper tape, 4,000 pcs per reel p.4

Notes for designers

LQM18JNR10J00D is the 100 nH member of Murata's LQM18JN chip-coil series: a 0603 (1.6 × 0.8 mm) inductor standing just 0.55 mm off the board. (p.2) It is specified tight, ±5%, with both inductance and the minimum Q of 8 measured at 25 MHz, and self-resonance held above 200 MHz, (p.1, p.2) so it still behaves as an inductor well into VHF filter territory.

The numbers to design against: 0.41 Ω ±25% of winding resistance (p.1) and a 650 mA rated current that is purely a self-heating limit, 40 °C rise max, the only rated-current criterion the spec gives. (p.1, p.2) Operating range is −40 to +85 °C. (p.1)

Two quirks worth knowing. The top face carries a polarity mark, (p.2) unusual for a small inductor. And the part is magnetically sensitive: Murata warns the inductance can change near magnets (use non-magnetic tweezers) and that current beyond the rating can walk the value through magnetic saturation. (p.9) Solderability is only guaranteed for six months of storage after delivery. (p.9)

Footprint

Redrawn from the datasheet land pattern (the previous pads were off by up to 0.5 mm).

Source: Land pattern from Murata reference specification JELF243B-0077B-01, p.6 (Land dimensions (reflow)).

mm Datasheet KiCad standard (L_0603_1608Metric) Previous This page
Pad length (along the part) 0.55 to 0.65 0.875 0.9 0.6
Pad width 0.7 0.95 1 0.7
Gap between pads 0.7 0.7 0.7 0.7
Centre to centre 1.25 to 1.35 1.575 1.6 1.3
Overall 1.8 to 2 2.45 2.5 1.9
Corner radius not specified 0.2188 (ratio 0.25) 0.225 (ratio 0.25) square (as drawn)
Corners: square, as the datasheet draws them. The datasheet does not call for rounded corners, so the footprint does not add any.

Chip outline

The part's 3D outline in the standard pose (pad 1 toward the viewer), drawn from the STEP by Adom's OpenCascade service; the part number sits where the laser-etched mark is on the 3D model and reads the same way.

Symbol options

The default symbol, LQM18JNR10J00D.kicad_sym (the one in the Symbol & Footprint panel), is the plain standard symbol. LQM18JNR10J00D-outline.kicad_sym is the same symbol with the part's 3D chip outline drawn beside it, its part number placed and reading as on the 3D model.

Ordering
MPN LQM18JNR10J00D
Manufacturer Murata
Adom stock Adom Basic Part, stocked on reels for Adom's pick-and-place line; reel counts on pnp-inventory
Other sources adom-parts-search compares Mouser, DigiKey and JLCPCB

Downloads

File What it is
LQM18JNR10J00D.kicad_sym KiCad symbol (standard symbol, the page default)
LQM18JNR10J00D-outline.kicad_sym KiCad symbol with the 3D chip outline
LQM18JNR10J00D.kicad_mod KiCad footprint (datasheet land pattern)
LQM18JNR10J00D.step 3D STEP with the part number laser-etched (default)
LQM18JNR10J00D-unetched.step 3D STEP, bare (no mark)
LQM18JNR10J00D.glb 3D GLB of the etched model (board use)
LQM18JNR10J00D-unetched.glb 3D GLB, bare
LQM18JNR10J00D.lbr Fusion 360 / EAGLE library
LQM18JNR10J00D.adom-lbr.json adom-lbr part (converts to Altium, KiCad, EAGLE)
LQM18JNR10J00D-datasheet.pdf Datasheet (release asset)

Provenance

  • Datasheet: Four Murata LQM18 reference specifications (per-part docs): JN = 'CHIP COIL (CHIP INDUCTOR) for Consumer equipment & Industrial equipment LQM18JN□□□□00D REFERENCE SPECIFICATION'; DH = 'CHIP COIL (CHIP INDUCTOR) for Automotive powertrain/safety equipment LQM18DH□□□□70□ Murata Standard Reference Specification [AEC-Q200]'; PN-FR = 'CHIP COILS (CHIP INDUCTORS) LQM18PN□□□□FR□ REFERENCE SPECIFICATION'; PN-FH = 'CHIP COIL (CHIP INDUCTOR) for Consumer equipment & Industrial equipment LQM18PN□□□□FH□ REFERENCE SPECIFICATION', JELF243B-0077B-01 revised Revision carried only in the spec-number letter suffix (0077B / 9127G / 0033G / 0043K); no printed issue/revision date anywhere in any of the four docs, Murata Manufacturing Co., Ltd. (footer 'MURATA MFG CO., LTD' on every page of all four docs). md5 cc65d9d2f38d7e30e1d576b396eb3699
  • Footprint: Land pattern from Murata reference specification JELF243B-0077B-01, p.6 (Land dimensions (reflow)). Pads redrawn on 2026-10-03.
  • 3D model and symbol: unchanged by the footprint pass; the etched STEP adds a flat virtual part-number mark (an identification aid, not the maker's marking).

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