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Product Detailed Parameters
- Description：XFMR FLYBACK DC/DC CONV 100UH SM
- Series：WE-FB
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：For DC/DC Converters
- Applications：Flyback Converters
- Intended Chipset：LT3573, LT3574, LT3575, LT3748
- Chipset Manufacturer：Linear Technology
- Voltage - Primary：36V
- Voltage - Auxiliary：8V @ 20mA
- Voltage - Isolation：2500Vrms
- Inductance @ Frequency：100µH @ 10kHz
- Frequency：100kHz
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Size / Dimension：-
- Height - Seated (Max)：0.505" (12.83mm)
- Footprint：0.530" L x 0.699" W (13.46mm x 17.75mm)
- Style：-
- Grade：-
- Qualification：-
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Overview
The Würth Elektronik 750311456 is a surface-mount flyback transformer designed for DC/DC converters and switched-mode power supplies. It features 2500Vrms isolation and operates at 100kHz. The primary voltage rating is 36V, with an auxiliary voltage of 8V at 20mA. Inductance is 100µH at 10kHz. Dimensions are 13.46mm x 17.75mm x 12.83mm max height. Operating temperature range is -40°C to 125°C.
Feature Summary
- Designed specifically for flyback converter applications in DC/DC conversion systems
- Provides high-voltage isolation capability suitable for safety-critical power supply designs
- Optimized for surface-mount technology integration into compact PCB layouts
Applications
- Flyback converter circuits
- DC/DC converter modules
- Switched-mode power supplies (SMPS)
Procurement Notes
Verify the specific datasheet version against the manufacturer's official documentation before finalizing design specifications. Confirm that the component meets all required electrical parameters for the target application environment. Ensure compatibility with the intended controller ICs listed in the official product catalog. Check for any recent product change notifications regarding packaging or material composition updates.
Selection Notes
Select this component when designing flyback topologies requiring 2500Vrms isolation and operation around 100kHz. It is specifically engineered for use with Linear Technology controllers such as the LT3573, LT3574, LT3575, and LT3748 series. Consider the physical footprint constraints and thermal requirements within the -40°C to 125°C operating range during board layout planning.
Part Context
This part belongs to the Würth Elektronik WE-FB series of flyback transformers. These components are tailored for modern switching power supply architectures. The series supports various controller families, providing standardized solutions for designers. The 750311456 variant specifically targets applications compatible with Linear Technology integrated circuits.
Replacement Considerations
Official substitutes include other parts within the WE-FB series designed for similar controller families. Verify pinout compatibility and electrical ratings before substitution. Cross-reference with the manufacturer's replacement guide for exact functional equivalents.
