749251100

$1.90

Description：CURR SENSE XFMR 1:100 10A SMD
Series：WE-CST
Mfr：Würth Elektronik
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:3c320460f572 Category: Current Sense Transformers Brand: Würth Elektronik

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Product introduction

749251100 is listed in the Current Sense Transformers range at ChipApex. The manufacturer field lists Würth Elektronik. Its product description is CURR SENSE XFMR 1:100 10A SMD. Review the specifications below when checking this part for your BOM.

Current Sense Transformers specifications for 749251100

Description：CURR SENSE XFMR 1:100 10A SMD
Series：WE-CST
Mfr：Würth Elektronik
Package：Tape & Reel (TR),Cut Tape (CT)
Frequency Range：-
Type：Invasive
Inductance：2 mH
ET (Volt-Time)：50VµS
Current Ratio：-
DC Resistance (DCR)：6mOhm Primary, 5.5Ohm 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：0.111111111
Current Rating (Amps)：-

Current Sense Transformers datasheet and documents for 749251100

749251100

Current Sense Transformers Overview

The Würth Elektronik WE-CST 749251100 is a surface-mount current sensing transformer designed for board-level integration. It features a 1:100 turns ratio and an inductance of 2 mH, supporting frequency ranges from 50 kHz to 1 MHz. The primary winding resistance is 6 mΩ, while the secondary DC resistance is 5.5 Ω. Rated for 10 A primary current, it withstands 500 VAC isolation voltage with a maximum operating temperature of +125°C. Dimensions are 7.7 mm x 6.9 mm x 5.33 mm.

Current Sense Transformers Feature Summary

Surface-mount construction for automated PCB assembly
High isolation voltage rating of 500 VAC
Optimized for AC current detection applications

Current Sense Transformers Applications

AC current sensing circuits
Power supply monitoring systems
Industrial control equipment

Current Sense Transformers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific packaging configurations such as tape-and-reel quantities prior to ordering. Ensure storage conditions align with moisture sensitivity level requirements to maintain solderability and electrical integrity during surface-mount processing.

Current Sense Transformers Selection Notes

Select this component when high isolation voltage and precise current transformation ratios are required in compact designs. The 1:100 ratio suits low-current secondary side detection from higher primary loads. Evaluate thermal performance at +125°C limits and ensure PCB layout accommodates the specified footprint dimensions for reliable SMT placement.

Current Sense Transformers Part Context

This part belongs to the Würth Elektronik WE-CST series of current sensing transformers. These components provide galvanic isolation between primary power lines and secondary sensing circuits. The series supports various turns ratios and inductance values tailored for different power monitoring requirements across industrial and consumer electronics sectors.