SMT Power Inductors
Shielded Drum Core - PG0087NL Series
NOTE
:
1. Unless otherwise specified, all testing is made at 100kHz, 0.1VAC.
2. Optional Tape & Reel packaging can be ordered by adding a “T”
suffix to the part number (i.e PG0087.102NL becomes PG0087.102NLT).
Pulse complies with industry standard Tape and Tape & Reel
specification EIA481.
3. The “NL” suffix indicates an RoHS-compliant part numer. 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” version, but an RoHS compliant version is required, please
contact Pulse for availability.
4. Temperature of the component (ambient plus temperature rise) must be
within specified operating temperature range.
5. The rated current (Irated) as listed is either the saturation current or the
heating current depending on which value is lower.
6. The saturation current, Isat, is the current at which the component inductance
drops by the indicated percentage (typical) at an ambient temperature of 25C.
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.
7. The heating current, Idc, is the DC current required to raise the component
temperature by the indicated delta (approximately). 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.
8.
In high volt*time (Et) or ripple current applications, additional heating in the
component can occur due to core losses in the inductor which may necessitate
derating the current in order to limit the temperature rise of the component. In
order to determine the approximate total loss (or temperature rise) for a given
application, both copper losses and core losses should be taken into account.
Estimated Temperature Rise:
Trise = [Total loss (mW) / K0]
.833
(°C)
Total Loss = Copper loss + Core loss (mW)
Copper loss = I
RMS 2
x DCR (Typical) (mW)
Irms = [I
DC2
+
ΔI
2
/12]
1/2
(A)
Core loss = K1 x f (kHz)
1.23
x Bac (Ga)
2.38
(mW)
Bac (peak to peak flux density) = K2 x
ΔI
(Ga)
[= K2/L (µH) x Et (V-µSec) (Ga)]
where f varies between 25kHz and 1MHz, and Bac is
less than 2500 Gauss.
K2 is a core size and winding dependent value and is
given for each p/n in the proceeding datasheets. K0 &
K1 are platform and material dependant constants and
are given in the table below for each platform.
Part No.
PG0087
Trise Factor
(KO)
5.8
Core Loss Factor
(K1)
15.2E-10
Take note that the component’s temperature rise 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.
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SMT Power Inductors
Shielded Drum Core - PG0087NL Series
Mechanical
PG0087.XXX
Schematic
Weight
...............0.3grams
Tape & Reel
.......1500/reel
Inches
Dimensions:
mm
Unless otherwise specified,
all tolerances are
±
.004
0,10
INDUCTANCE VS CURRENT
Inductance vs
Current
Characteristic
For More Information
Pulse Worldwide
Pulse Europe
Headquarters
Pulse Electronics GmbH
15255 Innovation Drive Ste 100 Am Rottland 12
San Diego, CA 92128
58540 Meinerzhagen
U.S.A.
Germany
Pulse China Headquarters
Pulse Electronics (ShenZhen) CO., LTD
D708, Shenzhen Academy of
Aerospace Technology,
The 10th Keji South Road,
Nanshan District, Shenzhen, P.R.
China 518057
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Road West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
135 Joo Seng Road
#03-02
PM Industrial Bldg.
Singapore 368363
Pulse North Asia
3F, No. 198
Zhongyuan Road
Zhongli City
Taoyuan County 32068
Taiwan
Tel: 886 3 4356768
Fax: 886 3 4356823
Tel: 858 674 8100
Fax: 858 674 8262
Tel: 49 2354 777 100
Fax: 49 2354 777 168
Tel: 65 6287 8998
Fax: 65 6280 0080
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 names mentioned herein may
be trademarks or registered trademarks of their respective owners. © Copyright, 2017. Pulse Electronics, Inc. All rights reserved.
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