Current Sense Transformers suit high-frequency applications.

Press Release Summary:

Surface-mount 5300/5400/5500 series operate over 50-500 kHz range and are built with UL94 V-0 package materials. Comprised of 10 devices with primary current rating to 10 A and 20-200 turns, 5300 series can measure/monitor ac currents up to 10 A and features primary to secondary isolation of 500 Vrms. Series 5400 and 5500 measure/monitor ac currents to 15 A and are available with 50, 100, or 200 turns. Respectively, they offer 1,200 and 1,000 Vrms primary to secondary isolation.

Original Press Release:

New Products - 5300, 5400, 5500

Three new series of current sense transformers designed for latest applications in high frequency equipment

Murata Power Solutions has introduced three new ranges of surface-mount current sense transformers. The 5300, 5400 and 5500 series can be used to measure or monitor AC currents in high frequency applications.


10A and 15A primary current ratings.
Compact designs using UL94 V-0 package materials.
50kHz to 500kHz operating frequency range.
Wide choice of devices to suit many applications.
Why would I specify the 78SR?

Designed to measure AC currents up to 10A, the 5300 series comprises ten different devices with a primary current rating to 10A and between 20 and 200 turns, depending on the resolution of current measurement desired. A primary to secondary isolation of 500Vrms in an industry-standard footprint helps simplify their inclusion into existing product designs.

The 5400 and 5500 series are designed to measure AC currents up to 15A and are available with 50, 100 or 200 turns.

The 5400 series features a small footprint package style and provides 1200Vrms primary to secondary isolation.

The 5500 series is offered in a low profile package, with a primary to secondary isolation of 1000Vrms.

Full data is available for the 5300, 5400, and 5500 on our website.

Andrea Polti
Product Manager - Magnetics
Murata Power Solutions

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