SMT POWER INDUCTORS
Flat Coils - PG0006NL and PG0138NL Series
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 saturation current, I
SAT
, is the current at which the
component inductance drops by 10% typical (20% typical for
PG0138.XXX) 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.
5. The heating current, I
DC
, 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 tempera-
ture rise of the component during system operation.
6. Core loss approximation is based on published core data:
Core Loss
PG0006 SERIES
= K1 * (f)
1.02
* (K2ΔI)
2.29
Core Loss
PG0138 SERIES
= {K1a * (f)
1.12
* (K2ΔI)
2.17
} +
{K1b * (f)
1.25
* (K2ΔI)
2.32
}
Where: Core Loss = in Watts
f = switching frequency in kHz
K1= 4.75E-11
K1a= 4.43E-11
K1b= 1.73E-11
ΔΔ
I = delta I across the component in Ampere
K2
ΔΔ
I = one half of the peak to peak flux density
across the component in Gauss
7. Unless otherwise specified, all testing is made at
100kHz, 0.25V
AC.
8. Optional Tape & Reel packaging can be ordered by adding a
"T" suffix to the part number (i.e. PG0006.102NL becomes
PG0006.102NLT). Pulse complies to industry standard tape and
reel specification EIA481.
8. The "NL" suffix indicates an RoHS-compliant part number.
Non-NL suffixed parts are not necessarily RoHS compliant, but
are electrically and mechanically equivalent to NL versions.
If a part number does not have the "NL" suffix, but an RoHS
compliant version is required, please contact Pulse for availability.
