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Product Detailed Parameters
- Description：XFMR FLEX DC/DC CONV 27.4UH 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：27.4µH @ 100kHz
- Frequency：-
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Size / Dimension：0.362" L x 0.508" W (9.19mm x 12.90mm)
- Height - Seated (Max)：0.244" (6.20mm)
- Footprint：0.512" L x 0.508" W (13.00mm x 12.90mm)
- Style：-
- Grade：-
- Qualification：-
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Overview
The Würth Elektronik 749196118 is a flexible surface-mount transformer designed for DC/DC converters and SMPS applications. It features an inductance of 27.4µH at 100kHz, with a maximum operating temperature range from -40°C to +125°C. The component provides 1500Vrms isolation voltage and utilizes a WE-FLEX series construction. Physical dimensions are 13.00mm x 12.90mm x 6.20mm.
Feature Summary
- Flexible form factor suitable for compact power supply designs
- High isolation voltage rating for safety compliance
- Surface mount package optimized for automated assembly
Applications
- DC/DC converter circuits
- Switching Mode Power Supply (SMPS) transformers
- Compact electronic power modules
Procurement Notes
Verify the specific packaging option required for production, as the component is available in tape and reel, cut tape, or Digi-Reel formats. Confirm that the 21-week standard lead time aligns with project schedules. Ensure the surface mount footprint matches the PCB layout constraints before finalizing orders.
Selection Notes
Select this component when high isolation and thermal stability are required in space-constrained environments. The 1500Vrms rating supports stringent safety standards. The flexible design allows for integration where rigid transformers cannot fit. Verify that the 27.4µH inductance meets the specific circuit requirements for the intended switching frequency.
Part Context
This part belongs to the WE-FLEX series, which specializes in flexible magnetic components for modern electronics. The series addresses the need for compact, reliable power conversion solutions in dense PCB layouts. It complements Würth Elektronik's broader portfolio of magnetics by offering specialized form factors for advanced power management applications.
Replacement Considerations
No public substitute part numbers are documented. Direct replacement requires matching the 27.4µH inductance, 1500Vrms isolation, and SMD footprint. Cross-referencing with other manufacturers necessitates verifying electrical parameters and mechanical compatibility independently.
