PL8901 Datasheet, PDF (2/2 Pages) Pulse A Technitrol Company – SMT POWER INDUCTORS

SMT POWER INDUCTORS
Shielded Drum Core - PL89XX Series
Notes from Tables
1. Temperature of the component (ambient plus
temperature rise) must be within specified
operating temperature range.
2. The rated current as listed is either the saturation
current or the heating current depending on which
value is lower.
4. The heating current is the DC current, which
causes the temperature of the part to increase
by approximately 40°C. This current is determined
by extending the terminals of the component with
30mm length 28 gauge buss wires and applying
the current to the device for 30 minutes. The
temperature is measured by placing the thermo-
couple between the winding and the shield.
3. The saturation current is the current which
5. In high volt*time applications, additional heating in
causes the inductance to drop to 75% of its initial
the component can occur due to core losses in the
inductance at zero bias. This current is determined ^{inductor which may necessitate derating the current}
by placing the component at room ambient (25°C), ^{in order to limit the temperature rise of the compo-}
and applying a short duration pulse current (to
nent. In order to determine the approximate total
eliminate self-heating effects) to the component.
loss (or temperature rise) for a given application,
both copper losses and core losses should be
taken into account.
Inductance vs Current Characteristics
120%
100%
80%
60%
40%
20%
0%
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Normalized Isat
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Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product
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M117.B (4/06)