Dimensions: [mm]
Recommended Land Pattern: [mm]
Electrical Properties:
Properties
Inductance
8,0
L
6,0 ±0,3
10,0 ±0,3
8,5
11,0 ±0,5
6,0 ±0,3
8,5
Performance Rated Current
Value
Unit
Tol.
100 kHz/ 10 mA
22
µH
±20%
IR,50K
ΔT = 50 K
23.9
A
max.
IRP,40K
ΔT = 40 K
Rated Current
1)
Test conditions
24.05
A
max.
Saturation Current @ 10%
ISAT,10% |ΔL/L| < 10 %
7.5
A
typ.
Saturation Current @ 30%
ISAT,30% |ΔL/L| < 30 %
21.7
A
typ.
DC Resistance
RDC
@ 20 °C
4.9
mΩ
typ.
DC Resistance
RDC
@ 20 °C
5.39
mΩ
max.
Self Resonant Frequency
fres
9
MHz
typ.
1)
refer to IEC 62024-2-2020
20,5 max.
28,0 max.
Scale - 1:1
Schematic:
General Information:
25,0 max.
Start of winding
1
2
Ambient Temperature (referring
to IR)
-40 up to +75 °C
Operating Temperature
-40 up to +125 °C
Storage Conditions (in original
packaging)
< 40 °C ; < 75 % RH
Moisture Sensitivity Level (MSL)
1
Test conditions of Electrical Properties: +20 °C, 33 % RH if not specified differently
Test conditions of Performance Rated Current: refer to IEC 62024-2, Class D (PCB Copper Width:
40 mm; PCB Copper Thickness: 1000 µm)
Scale - 1:1
Temperature rise is highly dependent on many factors including PCB land pattern, trace size, and
proximity to other components. Therefore, temperature rise should be verified in application
conditions.
Product Marking:
Marking
74437529203220/ Date code (YYWW)
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
ElGa
003.000
2021-07-05
DIN ISO 2768-1m
PROJECTION
METHOD
DESCRIPTION
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-HCF Round Wire SMT High
Current Inductor
ORDER CODE
74437529203220
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
2920
eiSos
Valid
1/8
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.
Certification:
Typical Inductance vs. Current Characteristics:
RoHS Approval
Compliant [2011/65/EU&2015/863]
REACh Approval
Conform or declared [(EC)1907/2006]
Halogen Free
Conform [JEDEC JS709B]
Halogen Free
Conform [IEC 61249-2-21]
Component Qualification
25.0
AEC-Q200 Grade 1
Inductance (µH)
20.0
15.0
10.0
5.0
0.0
0.0
5.0
10.0
15.0
Current (A)
20.0
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
ElGa
003.000
2021-07-05
DIN ISO 2768-1m
25.0
30.0
PROJECTION
METHOD
DESCRIPTION
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-HCF Round Wire SMT High
Current Inductor
ORDER CODE
74437529203220
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
2920
eiSos
Valid
2/8
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.
Typical Temperature Rise vs. Current Characteristics:
100
Ir
Irp
90
80
Temperature Rise [K]
70
60
50
40
30
20
10
0
0
5
10
15
20
25
Current [A]
30
35
40
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
ElGa
003.000
2021-07-05
DIN ISO 2768-1m
PROJECTION
METHOD
DESCRIPTION
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-HCF Round Wire SMT High
Current Inductor
ORDER CODE
74437529203220
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
2920
eiSos
Valid
3/8
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.
Packaging Specification - Tray and Carton: [mm]
A
W
W2
W1
C
W
Cover
C
L2
A
C
L
L1
H
H
L
L
(mm)
typ.
245,00
L1
(mm)
typ.
176,00
L2
(mm)
typ.
44,00
CL
(mm)
typ.
18,00
W
(mm)
typ.
195,00
W1
(mm)
typ.
117,00
W2
(mm)
typ.
39,00
CW
(mm)
typ.
27,00
H
(mm)
typ.
22,00
CH
(mm)
typ.
21,00
Qty.
(pcs.)
Material
20
PET
LIC (mm)
WIC (mm)
HIC (mm)
typ.
265
typ.
205
typ.
30
No. of
tray
pcs.
1
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
ElGa
003.000
2021-07-05
DIN ISO 2768-1m
Packaging
Unit
pcs.
20
Material
Paper
PROJECTION
METHOD
DESCRIPTION
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-HCF Round Wire SMT High
Current Inductor
ORDER CODE
74437529203220
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
2920
eiSos
Valid
4/8
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.
C
H
W
L
C
C
LC (mm)
WC (mm)
HC (mm)
typ.
275
typ.
232
typ.
255
No. of
inner carton
pcs.
8
Packaging
Unit
pcs.
160
Material
Paper
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
ElGa
003.000
2021-07-05
DIN ISO 2768-1m
PROJECTION
METHOD
DESCRIPTION
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-HCF Round Wire SMT High
Current Inductor
ORDER CODE
74437529203220
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
2920
eiSos
Valid
5/8
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.
Classification Reflow Profile for SMT components:
Classification Reflow Soldering Profile:
Profile Feature
Tp
tp
Max. Ramp Up Rate
Max. Ramp Down Rate
TL
Temperature
Ts max
tL
Preheat Area
Ts min
TC –5°C
Value
Preheat Temperature Min
Ts min 150 °C
Preheat Temperature Max
Ts max 200 °C
Preheat Time ts from Ts min to Ts max
ts
Ramp-up Rate (TL to TP)
60 - 120 seconds
3 °C/ second max.
Liquidous Temperature
TL
217 °C
Time tL maintained above TL
tL
60 - 150 seconds
Peak package body temperature
Tp
Tp ≤ Tc, see Table below
Time within 5°C of actual peak
temperature
tp
20 - 30 seconds
Ramp-down Rate (TP to TL)
6 °C/ second max.
Time 25°C to peak temperature
8 minutes max.
refer to IPC/ JEDEC J-STD-020E
tS
Package Classification Reflow Temperature (Tc):
Volume mm³
350-2000
Volume mm³
>2000
PB-Free Assembly | Package Thickness 260 °C
< 1.6 mm
260 °C
260 °C
PB-Free Assembly | Package Thickness 260 °C
1.6 mm - 2.5 mm
250 °C
245 °C
PB-Free Assembly | Package Thickness 250 °C
> 2.5 mm
245 °C
245 °C
Properties
25
Time 25°C to Peak
Time
Volume mm³
