SMT POWER INDUCTORS
Flat Coils - PG0426NL Series
Notes from Tables
1. The temperature of the component (ambient plus temperature
rise) must be within the standard operating temperature range.
2. The saturation current, I
SAT
, is the current at which the component
inductance drops by 30% (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 effects) to the component.
3. The heating current, I
DC
, is the DC current required to raise the
component temperature by approximately 40°C. The heating cur-
rent is determined by mounting the component on a typical PCB
and applying current for 30 minutes. The temperature is mea-
sured 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.
Inductance vs Current Characteristics
1.0
0.9
0.8
PG0426.102NL
1.20
1.40
4. Core loss approximation is based on published core data:
Core Loss
= K1 * (f)
1.33
* (K2ΔI)
2.51
Where: Core Loss
= in Watts
K1=
8.75E-12
f
= switching frequency in kHz
K1 & K2
= core loss factors
Δ
I
= delta I across the component in Ampere
Δ
K2ΔI
= one half of the peak to peak flux density
across the component in Gauss
5. Unless otherwise specified, all testing is made at
100kHz, 0.1V
AC
.
6. Optional Tape & Reel packaging can be ordered by adding a "T"
suffix to the part number (i.e. PG0426.101NL becomes
PG0426.101NLT). Pulse complies to industry standard tape and
reel specification EIA481.
Typical Core Loss vs Peak Flux Density
100kHz
200kHz
300kHz
400kHz
500kHz
1MHz
INDUCTANCE (µH)
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1
4
7
10
PG0426.681NL
CORE LOSS (W)
0.7
1.00
0.80
0.60
0.40
0.20
0.00
PG0426.331NL
PG0426.201NL
PG0426.101NL
13
16
19
22
25
28
3
34
3
40
43
46
49
52
100
200
300
400
500
600
700
800
900
1000
DC BIAS (A)
DELTA B (GAUSS)
Delta B = (K2DI)
Typical Component Temperature vs DC Bias Current
COMPONENT TEMP. RISE (°C)
120
100
80
60
40
20
0
0
6
12
18
24
30
DC BIAS (A)
36
42
48
54
PG0426.101NL
PG0426.152NL
PG0426.102NL
PG0426.681NL
PG0426.331NL
PG0426.471NL
PG0426.151NL
PG0426.201NL
PG0426.221NL
For More Information:
Pulse Worldwide
Headquarters
12220 World Trade Dr.
San Diego, CA 92128
U.S.A.
www.pulseeng.com
Tel: 858 674 8100
Fax: 858 674 8262
Pulse
Europe
Einsteinstrasse 1
D-71083 Herrenberg
Germany
Pulse China Headquarters
B402, Shenzhen
Tech-Innovation International
Tenth Kejinan Rd.
High-Tech Industrial Park
Nanshan District, Shenzhen
China
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 1503
XinYin Building
No. 888 YiShan Rd.
Shanghai 200233
China
Tel: 86 21 54643211/2
Fax: 86 21 54643210
Pulse South Asia
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
Pulse North Asia
No. 26
Kao Ching Rd.
Yang Mei Chen
Tao Yuan Hsien
Taiwan, R. O. C.
Tel: 886 3 4641811
Fax: 886 3 4641911
Tel: 49 7032 7806 0
Fax: 49 7032 7806 12
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, 2007. Pulse Engineering, Inc. All rights reserved.
www.pulseeng.com
P649.B (4/07)
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