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Product Detailed Parameters
- Description：XFMR FLEX DC/DC CONV 140UH 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：140µH @ 100kHz
- Frequency：-
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Size / Dimension：0.472" L x 0.642" W (11.99mm x 16.31mm)
- Height - Seated (Max)：0.291" (7.40mm)
- Footprint：0.661" L x 0.642" W (16.79mm x 16.31mm)
- Style：-
- Grade：-
- Qualification：-
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Overview
The Würth Elektronik 749196208 is a high-voltage surface-mount transformer from the WE-FLEX HV series, designed for DC/DC converter applications. It features an inductance of 140µH at 100kHz and provides 1.5kVrms isolation voltage. The component operates within a temperature range of -40°C to +125°C. Its physical dimensions are 13.00mm in length, 12.90mm in width, with a maximum installation height of 6.20mm. The unit is supplied in tape and reel packaging.
Feature Summary
- High voltage isolation capability of 1.5kVrms for safe circuit separation
- Flexible construction suitable for compact surface mount designs
- Optimized for DC/DC converter switching power supply topologies
Applications
- DC/DC converter modules requiring high isolation
- Advanced driver assistance systems (ADAS)
- Grid infrastructure equipment
Procurement Notes
Verify the specific inductance value and isolation rating against the official datasheet before integration. Confirm that the surface mount package dimensions align with the PCB footprint requirements. Ensure the operating temperature range meets the environmental conditions of the target application. Cross-reference the manufacturer part number to avoid substitution errors.
Selection Notes
Select this component when high voltage isolation is critical for the DC/DC converter design. The flexible form factor allows for space-constrained layouts. Consider the 140µH inductance value for matching circuit requirements. Verify compatibility with automated surface mount assembly processes due to the tape and reel packaging format.
Part Context
This transformer belongs to the WE-FLEX HV series, which specializes in high-voltage solutions. The series offers flexible transformers designed for modern power electronics. It addresses the need for compact, isolated power conversion components in demanding industrial and automotive environments.
Replacement Considerations
Consult the official manufacturer documentation for verified substitute part numbers. Do not assume cross-compatibility with other series without explicit confirmation from Wurth Elektronik technical data.
