Murata Electronics LQH31 series drum core wirewound inductor, 5.6 µH, ±5% tolerance, 115 mA, unshielded, 1206 (3216 Metric) SMD.
| Parameter | Value |
|---|---|
| Type | Drum Core, Wirewound |
| Series | LQH31 |
| Mounting | Surface Mount |
| Current rating | 115 mA |
| Frequency - self resonant | 28MHz |
| Inductance frequency - test | 1 MHz |
| Operating temperature | -40°C ~ 85°C |
| Material - core | Ferrite |
| Size (Dimension) | 0.126\" L x 0.063\" W (3.20mm x 1.60mm) |
| Height - seated | 0.079\" (2.00mm) |
| Q @ freq | 35 @ 8MHz |
| Shielding | Unshielded |
| Tolerance | ±5% |
| Inductance | 5.6 µH |
| Case | 1206 (3216 Metric) |
| DC resistance | 2.34Ohm Max |
The LQH31MN5R6J03L: Its self-resonant frequency of 28 MHz and Q factor of 35 at 8 MHz define the usable frequency ceiling: above SRF the inductor behaves capacitively, so the filter or matching network must stay below that knee.
Unshielded construction means the magnetic field radiates — keep sensitive traces or low-level analog circuits at least one package width away to avoid coupling.
The inductance is 5.6 µH with ±5% tolerance, tested at 1 MHz.
The self-resonant frequency (SRF) is 28 MHz. Above this frequency the part behaves capacitively, so the application must stay below SRF.
The LQH31 series includes other inductance values in the same 1206 footprint, but a different value changes the BOM line — confirm the required inductance before substituting.