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749251030 is listed in the Current Sense Transformers range at ChipApex. The manufacturer field lists Würth Elektronik. Its product description is CURR SENSE XFMR 1:30 10A SMD. Review the specifications below when checking this part for your BOM.
Current Sense Transformers specifications for 749251030
- Description：CURR SENSE XFMR 1:30 10A SMD
- Series：WE-CST
- Mfr：Würth Elektronik
- Package：Tape & Reel (TR),Cut Tape (CT)
- Frequency Range：-
- Type：Invasive
- Inductance：180 µH
- ET (Volt-Time)：15VµS
- Current Ratio：-
- DC Resistance (DCR)：6mOhm Primary, 480mOhm Secondary
- Ratings：-
- Mounting Type：Surface Mount
- Size / Dimension：0.303" L x 0.272" W (7.70mm x 6.90mm)
- Height - Seated (Max)：0.210" (5.33mm)
- Termination Style：Gull Wing
- Turns Ratio - Primary:Secondary：1:30
- Current Rating (Amps)：-
Current Sense Transformers datasheet and documents for 749251030
Current Sense Transformers Overview
The Würth Elektronik 749251030 is a surface-mount current sense transformer from the WE-CST series. It features a 1:30 turns ratio and supports up to 10A primary current. The component has a primary DC resistance of 6mΩ and secondary DC resistance of 480mΩ, with an inductance of 180µH. Dimensions are 7.70mm x 6.90mm x 5.33mm.
Current Sense Transformers Feature Summary
- Provides galvanic isolation between primary and secondary circuits for accurate current monitoring.
- Designed for surface mount technology (SMD) integration into compact PCB layouts.
- Utilizes a high-permeability core material to ensure stable performance across operating frequencies.
Current Sense Transformers Applications
- Current sensing in AC/DC and DC/DC power supply converters
- Over-current protection circuits in industrial equipment
- Feedback control loops in switching mode power supplies
Current Sense Transformers Procurement Notes
Verify the specific package variant and tape/reel specifications against the manufacturer datasheet before ordering. Ensure that the selected component meets the required thermal and electrical ratings for the target application environment. Cross-reference the part number with official distributor catalogs to confirm availability and lead times.
Current Sense Transformers Selection Notes
Select this component when a compact, high-isolation current transformer is needed for primary-side sensing. Consider the 1:30 ratio and 10A limit relative to the maximum expected load current. Evaluate the physical footprint constraints against the 7.70mm x 6.90mm dimensions to ensure compatibility with the PCB design.
Current Sense Transformers Part Context
This part belongs to the WE-CST series of current sense transformers by Würth Elektronik. These components are engineered for high-frequency applications requiring precise current measurement without direct electrical connection. The series offers various ratios to suit different voltage and current levels in modern power electronics.
Current Sense Transformers Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Consult the manufacturer for equivalent alternatives if this specific model is unavailable.
Current Sense Transformers FAQ
What is the primary DC resistance of the 749251030?
The primary DC resistance is 6mΩ.
Does the 749251030 support surface mount installation?
Yes, it is designed for surface mount device (SMD) installation.
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