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10 µH Inductor 0603 - Murata LQM18DH100M70L

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0603 AEC-Q200 Chip Inductor · 10 µH ±20% · 100 mA (ΔL) / 300 mA (temp rise)

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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… 89944cd 17d ago

10 µH Inductor 0603 - Murata LQM18DH100M70L

Murata LQM18DH100M70L: 0603 AEC-Q200 Chip Inductor, 10 µH ±20%, 100 mA (ΔL) / 300 mA (temp rise). 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 automotive chip coil, LQM18DH series for powertrain/safety equipment, 1.6 × 0.8 × 0.8 mm, 0.005 g, qualified to AEC-Q200 (Rev. D) p.1, p.2, p.3
10 µH ±20%, inductance measured at 1 MHz (Keysight 4294A) p.1, p.2
Rated current is dual-basis: 100 mA where inductance stays within ±50% of initial, 300 mA at 125 °C ambient on the 40 °C self-heating basis p.1, p.2
Temp-rise rating derates from 300 mA at 125 °C ambient to just 10 mA at 150 °C ambient p.1
DC resistance 1.05 ± 0.32 Ω p.1
Self-resonant frequency 32 MHz min p.1
Full-automotive −55 to +150 °C operating and storage range p.1
ESD rank 4, withstands 6,000 V to <8,000 V (DC) p.1
No marking, no polarity (simple wound equivalent circuit) p.2
8 mm plastic carrier tape, 4,000 pcs per reel p.4

Notes for designers

LQM18DH100M70L is the automotive one: a 10 µH ±20% chip coil from Murata's LQM18DH series, written against AEC-Q200 for powertrain and safety equipment and rated for −55 to +150 °C, operating and storage alike. (p.1, p.3) Inductance is measured at 1 MHz; (p.2) DC resistance is 1.05 ± 0.32 Ω and self-resonance sits above 32 MHz. (p.1)

Read the rated-current cell carefully, because it is the trap. The temperature-rise column allows 300 mA at 125 °C ambient, but the inductance-change rating is only 100 mA, beyond that the spec permits inductance to move as far as ±50% of its initial value. (p.1, p.2) A filter that must stay 10 µH designs to 100 mA, not 300. And at the top of the range the thermal budget nearly vanishes: the rating derates between 125 and 150 °C ambient down to 10 mA. (p.1)

The rest is undemanding: no marking, no polarity, (p.2) ESD withstand in the 6-8 kV rank, (p.1) and 4,000 pieces per reel on 8 mm plastic tape. (p.4)

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-9127G-01, p.7 (Land dimensions (reflow)).

mm Datasheet KiCad standard (L_0603_1608Metric) Previous This page
Pad length (along the part) 0.65 0.875 0.9 0.65
Pad width 0.7 0.95 1 0.7
Gap between pads 0.7 0.7 0.7 0.7
Centre to centre 1.35 1.575 1.6 1.35
Overall 2 2.45 2.5 2
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, LQM18DH100M70L.kicad_sym (the one in the Symbol & Footprint panel), is the plain standard symbol. LQM18DH100M70L-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 LQM18DH100M70L
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
LQM18DH100M70L.kicad_sym KiCad symbol (standard symbol, the page default)
LQM18DH100M70L-outline.kicad_sym KiCad symbol with the 3D chip outline
LQM18DH100M70L.kicad_mod KiCad footprint (datasheet land pattern)
LQM18DH100M70L.step 3D STEP with the part number laser-etched (default)
LQM18DH100M70L-unetched.step 3D STEP, bare (no mark)
LQM18DH100M70L.glb 3D GLB of the etched model (board use)
LQM18DH100M70L-unetched.glb 3D GLB, bare
LQM18DH100M70L.lbr Fusion 360 / EAGLE library
LQM18DH100M70L.adom-lbr.json adom-lbr part (converts to Altium, KiCad, EAGLE)
LQM18DH100M70L-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-9127G-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 0b6c4abc757bc27b2c60f0d66457d94e
  • Footprint: Land pattern from Murata reference specification JELF243B-9127G-01, p.7 (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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