750311422 Wurth Electronics Inc, 750311422 Datasheet - Page 17

• Manufacturer Part Number: 750311422
• Description: TRANS FLYBACK LT3748LT3575 50UH
• Manufacturer: Wurth Electronics Inc
• Series: WE-FBr
• Type: For DC/DC Convertersr

Specifications of 750311422

• Applications: Flyback Converters
• Intended Chipset: LT3573, LT3574, LT3575, LT3748
• Voltage - Primary: 36V
• Voltage - Auxillary: 10V @ 20mA
• Voltage - Isolation: 1500Vrms
• Frequency: 100kHz
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Footprint: 0.70" x 0.53" (17.8mm x 13.5mm)
• Height Above Board: 0.50" (12.7mm)
• Chipset Manufacturer: Linear Technology
• Inductance: 50µH
• Transformer Type: Isolation and Data Interface (Encapsulated)
• Turns Ratio - Primary:secondary: 5 : 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• E.t.: -
• Other names: 732-2642-2

WE-HCF
SMD High Current Inductor
Size 2013
11/10
Electrical properties
Order Code
744 363 150 0
744 363 220 0
744 363 330 0
744 363 470 0
I
I
Schematic
Inductance vs. Current
R
sat
referring to 50 K self-heating above ambient temperature
referring to inductance loss of 30%
50
45
40
35
30
25
20
15
10
5
0
0
L
0
(µH)
±15%
15
22
33
47
14.70
21.10
19.40
12.45
(µH)
L
Extended inductance
N
Strom/current (A)
1
DCR ±10%
values
(mΩ)
10.65
11.40
12.20
8.70
7 7
7 7
7 7
Land pattern (in mm)
Characteristics
Very low core losses (MnZn)
Recommended solder profile: Reflow
Operating temperature: –40 °C to +125 °C
(A)
14
12
12
12
I
R
10
21.0
15.0
11.0
8.5
(A)
I
sat
Core Material
MnZn
744 363 150 0
744 363 220 0
744 363 330 0
744 363 470 0
Qty.
100
7 7
7 7
7 7
7 7
Dimensions (in mm)
1
Applications
Storage inductor for high efficiency DC/DC
converters
Single and polyphase buck converters
Filter for audio applications
Optimized for high current boost applications
21,8 max.
3
9,0 ±0,5
2,5 ±0,2
2
2,5 ±0,2
2,0 ref.
Pad 3 only for mechanical
reasons – no center top function
www.we-online.com
3,0 ±0,5
17