SMT POWER INDUCTORS
Shielded Drum Core - PL91XX Series
4. Tꢁe ꢁeating current is tꢁe DC current, wꢁicꢁ
causes tꢁe temperature of tꢁe part to increase by
approximately 40°C. Tꢁis current is determined by extend-
ing tꢁe terminals of tꢁe component witꢁ 30mm lengtꢁ 28
gauge buss wires and applying tꢁe current to tꢁe device
for 30 minutes. Tꢁe temperature is measured by placing
tꢁe tꢁermocouple between tꢁe winding and tꢁe sꢁield.
Notes from Tables
1. Temperature of tꢁe component (ambient plus
temperature rise) must be witꢁin specified operating
temperature range.
2. Tꢁe rated current as listed is eitꢁer tꢁe saturation current
or tꢁe ꢁeating current depending on wꢁicꢁ value is lower.
5. In ꢁigꢁ volt*time applications, additional ꢁeating in tꢁe
component can occur due to core losses in tꢁe inductor
wꢁicꢁ may necessitate derating tꢁe current in order to limit
tꢁe temperature rise of tꢁe component. In order to deter-
mine tꢁe approximate total loss (or temperature rise) for a
given application, botꢁ copper losses and core losses
sꢁould be taꢄen into account.
3. Tꢁe saturation current is tꢁe current wꢁicꢁ causes
tꢁe inductance to drop to 75ꢀ of its initial inductance at
zero bias. Tꢁis current is determined by placing tꢁe
component at room ambient (25°C), and applying a sꢁort
duration pulse current (to eliminate self-ꢁeating effects) to
tꢁe component.
TAPE & REEL
LAYOUT
Schematic
1
1
1
.945 ± .012
24.00 ± 0,30
.177
4,50
.421
10,70
Weight . . . . . . . . 2.5 grams
Tape & Reel. . . . . . 500/reel
3
4
3
4
3
4
PL91XX
PL91XX
PL91XX
Ø
Date Code
Date Code
Date Code
Country of Origin
Country of Origin
Country of Origin
1
2
2
2
Inches
Dimensions:
mm
Unless otherwise specified,
.256
6,50
.421
10,70
.630
16,00
.010
0,25
all tolerances are ±
USER DIRECTION
OF FEED
2
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
For More Information:
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Performance warranty of products offered on tꢁis data sꢁeet is limited to tꢁe parameters specified. Data is subject to cꢁange witꢁout notice. ꢂtꢁer brand and product
names mentioned ꢁerein may be trademarꢄs or registered trademarꢄs of tꢁeir respective owners. © Copyrigꢁt, 2007. Pulse Engineering, Inc. All rigꢁts reserved.
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M121.A (6/07)
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