Part Number: 750311591 vs 750310559

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Part Number: 750311591 750310559
Manufacturer: Wurth Electronics Midcom Wurth Electronics Midcom
Description: TRANS FLYBACK LT3748 8UH SMD TRANS FLYBACK LT3573 24UH SMD
Quantity Available: Available Available
Datasheets: Passive Components Prod Catalog -
Factory Lead Time 20 Weeks 20 Weeks
Mount Surface Mount PCB, Surface Mount
Mounting Type Surface Mount Surface Mount
Operating Temperature -40°C~125°C -40°C~125°C
Packaging Tape & Reel (TR) Tape & Reel (TR)
Series WE-FB WE-FB
Part Status Active Active
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
Termination SMD/SMT -
Max Operating Temperature 125°C 125°C
Min Operating Temperature -40°C -40°C
Applications Flyback Converters Flyback Converters
Depth 13.69mm -
Current Rating 20A -
Frequency 150kHz -
Voltage - Isolation 1500Vrms 1500Vrms
Output Voltage 15V 3.3V
Inductance 8 μH 24 μH
DC Resistance (DCR) 18mOhm 64mOhm
Max DC Current 20A -
Input Current 100A -
Voltage - Primary 20V~48V 12V~30V
Turns Ratio - Primary:Secondary 1.5:1 4:1
Inductance @ Frequency 8μH @ 150kHz 24μH @ 10kHz
Footprint 1.064 L x 1.272 W (27.03mm x 32.31mm) 0.525 L x 0.600 W (13.34mm x 15.24mm)
Chipset Manufacturer Linear Technology Linear Technology
Voltage - Auxiliary 10V 5V @ 20mA
Intended Chipset LT3573, LT3574, LT3575, LT3748 LT3573, LT3574, LT3575, LT3748
Height 13.69mm -
Height Seated (Max) 0.544 13.82mm 0.455 11.56mm
Length 32.31mm 15.24mm
Width 27.03mm 13.34mm
REACH SVHC Unknown No SVHC
RoHS Status ROHS3 Compliant ROHS3 Compliant
Package / Case - SMD/SMT
Capacitance - 0F
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