Summary
every figure cited to the datasheet below- 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 basisp.1, p.2
- Temp-rise rating derates from 300 mA at 125 °C ambient to just 10 mA at 150 °C ambientp.1
- DC resistance 1.05 ± 0.32 Ωp.1
- Self-resonant frequency 32 MHz minp.1
- Full-automotive −55 to +150 °C operating and storage rangep.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 reelp.4
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
3D Assembly
Static · Pick-and-Place — drag to orbit, scroll to zoomSchematic & Layout
interactive — drag to pan, scroll to zoom, click a pin or pad for detailSchematic Symbol
2D Layout
Datasheet
the source of every number on this page
1
2
3
4
5
6
7
8
9
10
11md5 0b6c4abc757bc27b2c60f0d66457d94e