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744778239

Description
General Purpose Inductor, 390uH, 20%, 1 Element, Ferrite-Core, SMD, ROHS AND REACH COMPLIANT
CategoryPassive components    inductor   
File Size549KB,6 Pages
ManufacturerWurth Elektronik
Environmental Compliance
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744778239 Overview

General Purpose Inductor, 390uH, 20%, 1 Element, Ferrite-Core, SMD, ROHS AND REACH COMPLIANT

744778239 Parametric

Parameter NameAttribute value
Brand NameWurth Electronik
Is it Rohs certified?conform to
MakerWurth Elektronik
Reach Compliance Codecompliant
ECCN codeEAR99
core materialFERRITE
DC Resistance2.94 Ω
Nominal inductance(L)390 µH
Inductor ApplicationsPOWER INDUCTOR
Inductor typeGENERAL PURPOSE INDUCTOR
JESD-609 codee1
Number of functions1
Number of terminals2
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum rated current0.3 A
self resonant frequency4 MHz
Shape/Size DescriptionRECTANGULAR PACKAGE
shieldNO
surface mountYES
Terminal surfaceTin/Silver/Copper (Sn/Ag/Cu)
Terminal locationDUAL ENDED
Terminal shapeONE SURFACE
Test frequency0.001 MHz
Tolerance20%
Base Number Matches1
Dimensions: [mm]
2,0 ±0,1
Recommended Land Pattern: [mm]
Electrical Properties:
Properties
Inductance
Rated Current
L
I
R
I
SAT
Test conditions
1 kHz/ 250 mV
ΔT = 40 K
|ΔL/L| < 10 %
Value
390
0.3
0.34
2490
2940
4.4
120
Unit
µH
A
A
MHz
V
Tol.
±20%
max.
typ.
typ.
max.
typ.
max.
2,2
1,6
Saturation Current
DC Resistance
DC Resistance
R
DC
@ 20 °C
R
DC
@ 20 °C
f
res
V
4,8
8
Self Resonant Frequency
Operating Voltage
Certification:
no vias and sensitive traces underneath the component
7,3 ±0,2
3,2 ±0,2
RoHS Approval
REACh Approval
Halogen Free
Compliant [ 2011/65/EU&2015/863 ]
Conform or declared [ (EC)1907/2006 ]
Conform [ JEDEC 709B ]
Scale - 2:1
Schematic:
General Information:
It is recommended that the temperature of the component does not exceed +125 °C under worst
case conditions
7,3 ±0,2
Ambient Temperature (refering to
I
R
)
Operating Temperature
Storage Conditions (in original
packaging)
Moisture Sensitivity Level (MSL)
Scale - 4:1
-40 up to +85 °C
-40 up to +125 °C
< 40 °C ; < 75 % RH
1
Test conditions of Electrical Properties: +20 °C, 33 % RH if not specified differently
Product Marking:
Start of Winding
Marking
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
391 (Inductance Code)
PROJECTION
METHOD
ALa
DESCRIPTION
005.006
2018-12-01
DIN ISO 2768-1m
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
WE-PD SMT Shielded Power
Inductor
SIZE/TYPE
BUSINESS UNIT
ORDER CODE
744778239
STATUS
PAGE
7332
eiSos
Draft
1/6
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.
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