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24

SPM2007 (11/07)

SMT POWER INDUCTORS

Unshielded Drum Core - PF0504NL Series

Notes from Tables

1. Inductance at Irated is a typical inductance value measured when

the inductor is subjected to the rated current.

2. The rated current listed is the lower of the saturation current @

25°C or the heating current.

3. The saturation current, Isat, is the current at which the

component inductance drops by 20% (maximum) at an ambient

temperature of 25°C. This current is determined by placing the

component in the specified ambient environment and applying a

short duration pulse current (to eliminate self-heating effects) to

the component.

component temperature by approximately 40°C. The heating

current is determined by mounting the component on a typical

PCB and applying current for 30 minutes.

5. Optional Tape & Reel packaging can be ordered by adding a "T"

suffix to the part number (i.e. PF0504.681NL becomes

PF0504.681NLT). Pulse complies to industry standard tape and

reel specification EIA481.

6. The temperature of the component (ambient plus temperature

rise) must be within the stated operating temperature range.

Inductance vs Current Characteristics

0%

20%

40%

60%

80%

100%

120%

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

Normalized Isat