pulseelectronics.com
SMT Power Inductors
Flat Coils - PG0255NL Series
SPM2007 (07/14)
Notes from Tables
1. The temperature of the component (ambient plus temperature rise) must be within
the specified operating temperature range.
2. Inductance at Irated is a typical inductance value for the component taken at rated current.
3. The rated current listed is the lower of the saturation current @ 25°C or the heating current.
4. The inductance at Bias is the controlled inductance value measured after subjecting
the part to the listed dc bias current.
5. The saturation current, ISAT, is the current at which the component inductance drops
by 20% (typical) 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 eects) to the component.
6. The heating current, IDC, is the DC current required to raise the 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. The temperature is measured by placing
the thermocouple on top of the unit under test. Take note that the component’s performance
varies depending on the system condition. It is suggested that the component be tested at the
system level, to verify the temperature rise of the component during system operation.
7. Core loss approximation is based on published core data:
Core Loss = K1 * (f) * (K2ΔI)
Where: Core Loss = in Watts
f = switching frequency in kHz
K1 & K2 = core loss factors
ΔI = delta I across the component in Ampere
K2ΔI = one half of the peak to peak flux density
across the component in Gauss
8. Unless otherwise specified, all testing is made at 100kHz, 0.1V
AC.
9. Optional Tape & Reel packaging can be ordered by adding a “T” sux to the part
number (i.e. PG0255.601NL becomes PG0255.601NLT). Pulse complies to industry
standard tape and reel specification EIA481.
“Y” Dimension
(in./mm MAX)
“W” Dimension
(±0.12mm)
PG0255.201NL .453/11,50 .177/4,50
PG0255.401NL .453/11,50 .146/3,70
PG0255.601NL .453/11,50 .130/3.3
PG0255.102NL .425/10,80 .130/3.3
PG0255.152NL .425/10,80 .130/3.3
PG0255.182NL .425/10,80 .130/3.3
PG0255.222NL .425/10,80 .130/3.3
Part Number
Typical Inductance vs DC Bias
58
1.48
1.97
