1.3
1.2
1.1
1.0
REV
2015-05-18
2014-09-08
2014-06-12
2014-02-03
DATE
SSt
SSt
SSt
SSt
BY
JRS
JRS
SSt
JRS
CHECKED
Würth Elektronik eiSos GmbH & Co. KG
EMC & Inductive Solutions
Max-Eyth-Str. 1
74638 Waldenburg
Germany
Tel. +49 (0) 79 42 945 - 0
www.we-online.com
eiSos@we-online.com
DESCRIPTION
WE-LQS SMD Power Inductor
Order.- No.
74404054220
SIZE
A4
Size: 5040
A Dimensions: [mm]
Reference on drawing
•
Marking
Description
Start of winding
220 (Inductance Code)
B Recommended land pattern: [mm]
C Schematic:
D Electrical Properties:
Properties
Inductance
Rated current
Saturation current
DC Resistance
Self resonant frequency
Test conditions
100 kHz/ 1 V
∆T = 40 K
|ΔL/L| < 30%
@ 20°C
L
I
R
I
sat
R
DC
f
res
Value
22
1.50
1.70
129
17
Unit
µH
A
A
mΩ
MHz
Tol.
±20%
max.
typ.
±20%
typ.
E General information:
It is recommended that the temperature of the part does not exceed 125°C
under worst case operating conditions.
•Ambient temperature: -40°C to +85°C (refering to I
R
)
•Operating temperature: -40°C to +125°C
•Storage temperature (on tape & reel): -20°C to +60°C; 75% RH max.
•Test conditions of Electrical Properties: 20°C, 33% RH
if not specified differently
This electronic component has been designed and developed for usage in general electronic equipment only. This product is not authorized for use in equipment where a higher safety standard and reliability standard is especially required or where a failure of the product is reasonably expected to cause severe personal injury or death, unless the parties have executed an agreement specifically governing such use.
Moreover Würth Elektronik eiSos GmbH & Co KG products are neither designed nor intended for use in areas such as military, aerospace, aviation, nuclear control, submarine, transportation (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network etc.. Würth Elektronik eiSos GmbH & Co KG must be informed about the intent of such usage before
the design-in stage. In addition, sufficient reliability evaluation checks for safety must be performed on every electronic component which is used in electrical circuits that require high safety and reliability functions or performance.
