750311605 Wurth Electronics Inc, 750311605 Datasheet - Page 13

• Manufacturer Part Number: 750311605
• Description: TRANS FLYBACK LT3748 15UH SMD
• Manufacturer: Wurth Electronics Inc
• Series: WE-FBr
• Type: For DC/DC Convertersr

Specifications of 750311605

• Applications: Flyback Converters
• Intended Chipset: LT3573, LT3574, LT3575, LT3748
• Voltage - Primary: 30 ~ 75V
• Voltage - Isolation: 1500Vrms
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Footprint: 1.15" x 0.91" (29.1mm x 23.1mm)
• Height Above Board: 0.45" (11.4mm)
• Chipset Manufacturer: Linear Technology
• Inductance: 15µH
• Transformer Type: Isolation and Data Interface (Encapsulated)
• Turns Ratio - Primary:secondary: 7 : 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• E.t.: -
• Other names: 732-2655-2

WE-TDC
SMD Coupled Inductor
Size 8038
11/10
Electrical properties
Order Code
744 894 400 039
744 894 400 082
744 894 400 12
744 894 400 18
744 894 400 47
744 894 400 68
744 894 401 00
744 894 401 20
744 894 401 50
744 894 401 80
744 894 402 20
I
I
Schematic
Inductance vs. Current
R
sat
of 40 K over ambient temperature when both windings in series are energized by rated current mentioned.
inductance drop of 10% typ when energizing one winding by I
25
20
15
10
5
0
0.1
1
3
Inductance
(µH)
0.39
0.82
1.20
1.80
4.70
6.80
10.0
12.0
15.0
18.0
22.0
DCR typ.
Strom/current (A)
(mΩ)
11.6
15.9
20.2
25.5
54.5
88.0
113
117
165
179
203
sat
4
2
mentioned.
1
DCR max.
(mΩ)
14.5
20.0
26.0
31.0
64.0
100
128
132
185
201
228
Land pattern (in mm)
I
R
4.50
3.70
3.05
2.85
1.85
1.45
1.35
1.30
1.10
1.05
1.00
max.
(A)
10
I
sat
14.0
9.60
7.50
5.80
4.20
3.20
2.60
2.30
2.20
1.90
1.80
(A)
typ.
4x 3,6
(MHz)
744 894 400 039
744 894 400 082
744 894 400 12
744 894 400 18
744 894 400 47
744 894 400 68
744 894 401 00
744 894 401 20
744 894 401 50
744 894 401 80
744 894 402 20
SRF
210
140
90
60
30
25
23
20
17
15
14
Qty.
350
Dimensions (in mm)
2
8,0 ±0,3
1,0 typ.
3
1
4
www.we-online.com
3,2 typ.
13