Low profile power inductors save space in portable designs

New Products | April 11, 2017

By Nick Flaherty

Power Management

The Vishay Dale IFL and IFLS series deliver inductance up to 100 µH — values normally reserved for larger components – in 1212, 1616, and 2020 case sizes with low profiles down to 1.0 mm.

The small size, high inductance values and frequencies up to 5 MHz provide a space-saving solution for notebooks, desktop PCs, and servers; low profile, high current power supplies and point of load (POL) converters; and DC-DC converters for distributed power systems and FPGAs.

The IFL and IFLS series devices feature a ferrite core with polyurethane enameled copper wire and an epoxy resin adhesive. The non-shielded IFL series offers typical DCR from 42 mΩ to 2460 mΩ and high rated saturation current to 7.5 A. The shielded IFLS series protects nearby components from magnetic radiation while providing typical DCR from 43 mΩ to 1730 mΩ and rated current to 3.8 A. All devices are RoHS-compliant and operate over a temperature range of -40 °C to +105 °C.

Device Specification Table:

Part #	IFL-1212AZ	IFL-1616AE	IFL-2020BZ	IFLS-1212AB	IFLS-1616AE	IFLS-2020BZ
Case size	1212	1616	20202	1212	1616	2020
Profile (mm)	1.0	1.5	2.0	1.2	1.5	2.0
Inductance (µH)	1.0 to 22	1.0 to 100	0.47 to 100	1.0 to 33	1.0 to 100	1.0 to 68
DCR typ. (mΩ)	64 to 1000	48 to 2460	42 to 1440	55 to 1210	43 to 1730	43 to 650
DCR max. (mΩ)	77 to 1200	58 to 2952	50 to 1728	66 to 1452	52 to 2076	52 to 780
Heat rating current (A)	0.40 to 1.70	0.25 to 1.85	0.40 to 2.60	0.25 to 1.80	0.30 to 2.30	0.50 to 2.60
Saturation current (A)	0.33 to 1.50	0.33 to 3.60	0.55 to 7.50	0.26 to 1.50	0.27 to 2.30	0.46 to 3.80
Shielded	No	No	No	Yes	Yes	Yes