Dimensions: [mm]
Recommended Land Pattern: [mm]
Electrical Properties:
Properties
Test conditions
Inductance Base 1)
Turns Ratio
0,7 ±0,1
21,0 max.
1
3,0
7
6
1
2,25
10,8 max.
IR BASE
Scale - 1:1
Schematic:
1
4
N4
29,5 max.
12
9
2
5
Tol.
µH
±20%
typ.
1:1:1:1:1:1
ΔT = 40 K
1.91
A
ISAT BASE
|ΔL/L| < 10 %
2.91
A
typ.
DC Resistance Base 4)
RDC BASE
@ 20 °C
30
mΩ
max.
Voltage-µSecond Base 5)
∫Udt Base Unipolar waveform
LS Base
VT
65.6
µVs
max.
10 kHz/ 1 V
0.18
µH
typ.
3 mA/ 1 s
500
V (AC)
Inductance of a single winding
Rated Current of a single winding
Saturation Current of a single winding when all windings are driven. If not all windings are driven,
the Saturation Current per winding is 6 x ISAT BASE / number of driven windings.
4) DC Resistance of a single winding
5) Voltage-μSecond of a single primary winding. For primary windings in series, multiply VoltageμSecondBASE by the number of windings used. For primary windings in parallel, the Voltage-μSecond
rating = Voltage-μSecondBASE.
Certification:
RoHS Approval
Compliant [2011/65/EU&2015/863]
REACh Approval
Conform or declared [(EC)1907/2006]
General Information:
Operating Temperature
N5
11
8
3
6
N3
Unit
4.3
1)
2)
3)
29,7
N2
Value
Saturation Current Base 3)
Insulation Test Voltage
22,7
N1
2)
Leakage Inductance Base
7
6
10 kHz/ 1 V
n
Rated Current Base
12
12
21,0 typ.
LBASE
-40 up to +125 °C
Storage Conditions (in original
packaging)
< 40 °C ; < 75 % RH
Storage Conditions (for single
parts)
-40 up to +85 °C
Moisture Sensitivity Level (MSL)
N6
1
Test conditions of Electrical Properties: +20 °C, 33 % RH if not specified differently
Scale - 1:1
10
7
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
CHC
004.003
2022-07-28
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-FLEX Flexible Transformer for
DC/DC Converter
ORDER CODE
749196530
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
EFD20
eiSos
Valid
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.
Packaging Specification - Tape: [mm]
Packaging Specification - Reel: [mm]
P0
T
E
D0
A
W3
K0
P2
D
A
C
d
Top Cover
Tape
P1
D1
A
T1
A0
T2
End
N
W
B
S
B0
F
W1
close to center
Feeding direction
Start
W2
Carrier Tape
Cover Tape
detail B
Cover Tape
B
Chip Cavity
Sprocket Hole
No Component
min.160mm
Components
No Component
min.100mm
Embossment
Cover Tape
min. 400mm
Packaging is referred to the international standard IEC 60286-3:2013
Tape Type
Tolerance
Value
3
A0
(mm)
typ.
21,80
B0
(mm)
typ.
29,50
W
(mm)
±0,3
44,00
T
(mm)
ref.
0,50
T1
(mm)
ref.
0,05
T2
(mm)
typ.
12,60
K0
(mm)
typ.
12,10
P0
(mm)
±0,1
4,00
P1
(mm)
±0,1
32,00
P2
(mm)
±0,15
2,00
D0
(mm)
+0,1/ -0,0
1,50
D0 / 2
(mm)
+0,05/ -0,0
0,75
D1
(mm)
typ.
2,00
d
(mm)
+0,05
0,20
E
(mm)
±0,1
1,75
S
(mm)
±0,1
40,40
F
(mm) Material
±0,1
20,20 Polystyrene
Qty.
(pcs.)
B
(mm)
min.
1,50
C
(mm)
min.
12,80
D
(mm)
min.
20,20
N
(mm)
min.
80,00
W1
(mm)
+ 2,0
44,40
W2
(mm)
max.
50,40
W3
(mm)
min.
43,90
W3
(mm)
max.
47,40
Material
Polysytrene
120
165° -180°
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
CHC
004.003
2022-07-28
DIN ISO 2768-1m
PROJECTION
METHOD
DESCRIPTION
Pull-of force
Tape width
Tolerance
Value
A
(mm)
± 2,0
330,00
44 mm
0,1 N - 1,3 N
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-FLEX Flexible Transformer for
DC/DC Converter
ORDER CODE
749196530
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
EFD20
eiSos
Valid
2/6
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.
Packaging Specification - Carton: [mm]
H
C
H
IC
Packaging Specification - Inner Carton: [mm]
W
W
IC
L
Tolerance
Value
LIC
(mm)
typ.
55,00
WIC
(mm)
typ.
340,00
HIC
(mm)
typ.
340,00
No. of
Reel (pcs.)
1
L
C
IC
Qty.
(pcs.)
120
Material
Paper
Tolerance
Value
LC
(mm)
typ.
290,00
WC
(mm)
typ.
356,00
HC
(mm)
typ.
360,00
C
No. of
Inner Carton (pcs.)
Qty.
(pcs.)
Material
5
600
Paper
CHECKED
REVISION
DATE (YYYY-MM-DD)
GENERAL TOLERANCE
CHC
004.003
2022-07-28
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-FLEX Flexible Transformer for
DC/DC Converter
ORDER CODE
749196530
SIZE/TYPE
BUSINESS UNIT
STATUS
PAGE
EFD20
eiSos
Valid
3/6
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.
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
