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Product Detailed Parameters
- Description：XFMR FLEX DC/DC CONV 9.9UH SMD
- Series：WE-FLEX
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：For DC/DC Converters
- Applications：Flexible
- Intended Chipset：-
- Chipset Manufacturer：-
- Voltage - Primary：-
- Voltage - Auxiliary：-
- Voltage - Isolation：1500Vrms
- Inductance @ Frequency：9.9µH @ 100kHz
- Frequency：-
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Size / Dimension：0.827" L x 0.846" W (21.01mm x 21.49mm)
- Height - Seated (Max)：0.472" (11.99mm)
- Footprint：1.161" L x 0.846" W (29.49mm x 21.49mm)
- Style：-
- Grade：-
- Qualification：-
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Overview
The Würth Elektronik 749196517 is a surface mount pulse transformer from the WE-FLEX HV series. It features a 1:1:1 turns ratio and six identical windings designed for high-voltage applications. The component provides an isolation voltage of 1.5 kV AC and has a primary DC resistance of 36 mΩ. Physical dimensions are 21.5 x 21 x 12 mm, with a minimum operating temperature of -40°C. Termination is via solder.
Feature Summary
- Six identical windings configured for high-voltage isolation
- Surface mount construction with solder termination
- Flexible transformer design within the WE-FLEX HV series
Applications
- High voltage DC/DC converter circuits
- SMPS transformer implementations
- Audio transformer applications requiring isolation
Procurement Notes
Verify the specific datasheet version when ordering, as technical documentation may vary between distributors. Confirm that the surface mount package dimensions and pinout match your PCB layout requirements. Ensure the 1.5 kV AC isolation rating meets the safety standards of your target application environment before finalizing procurement.
Selection Notes
Select this component when a high-voltage isolated pulse transformer with a 1:1:1 ratio is required in a compact surface mount form factor. The WE-FLEX HV series offers low leakage inductance and multiple air gap options. Consider the 36 mΩ primary DC resistance and -40°C minimum temperature limit during thermal and electrical design phases.
Part Context
This part belongs to the Würth Elektronik WE-FLEX HV series, which specializes in high-voltage flexible transformers. The series includes various sizes and lengths of air gaps to tailor magnetic properties. The 749196517 specifically addresses needs for isolated power conversion and signal transmission in demanding electronic environments.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided data. Verify compatibility with existing circuit designs if considering alternative high-voltage pulse transformers from other manufacturers.
